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OT, ....New Capaciitor Type.............. for AUDIO Use....
"OT" in my "Title" usually stands for " Off Topic", but I want to suggest, in this case, it really means " ON Topic " !!
This is my first full disclosure on a public Forum of a new film capacitor type, that has profound and serious uses in audio, in my experience and in my OPINION.... both in speakers and amplifiers.
It is called a Gate-Turn-Off capacitor, and you can read datasheets from people like WIMA, who produce these. I have also seen RIFA " GTOs" and Arcotronics brand " GTOs", which has been merged into Kemet.
This is a long post and story, be forewarned.
In April 2016, I befriended a fellow in the Netherlands, an eBay capacitor seller, who, like me, built Single Ended triode amps, he did 300Bs, and I was doing Type 45s then. WE are both amateur enthusiasts.
My new friend John tells me about his favorite sounding cap, ......an ARCOTRONICS film cap, 5 uF value at 1200 VDC rated. Easily sensing this fellow was legitimate, I ordered some of these capacitors from him, and immediately incorporated them in a second-generation Type 45 SET direct-coupled amp I had designed and was building just THEN, for myself, for VOTTs..
I ordered many of these, and used two for the shared power supply. This stereo amp used a single L1/C1/L2/C2 B+ filter to the Finals stage. These 5 uF caps were added. as part of a multiple film bypass cap " bunch or bundle ", across C1 and C2, which usually are about 30 uf ( C1 ) and 50 uF ( C2 ) in value.
I was also FINALIZING my own DIY VOTT 800 HZ crossovers for my speakers, so I included this same type 5 uF Film Caps as part of each " C " position in a 12 dB / 800 hZ, Butterworth Filter. So, it was to employ two ARCOTRONICS GTOs, per crossover.
In May, 2016, when I fired-up the newly-built 45 amp ( and speakers with new crossovers ), for the first time, it all sounded very good to me. Nice and dynamic.
By about August, 2016, I go the nerve to disconnect the ground from ONE 5 uF Arcotronics Gate Turn Off cap, bypassing C1. Holly smokes.....the whole system died in Dynamics and sounded very ordinary. I quickly re-connected the C1 5 uF GTO bypass, and have listened that way, religiously, since then.
I didn't tell too many about this result. In December 2016, I had a USA friend, who I had shown photos to of my DIY VOTT crossovers, call to tell me " he figured out what the cap was, and where to get them ". Lawrence said he ordered some, and installed it in his system, and he was FLOORED. His specific description " It gets the LEADING EDGE of all transients, from the bass on up, UNLIKE anything we have ever heard any wheres in audio ". I truly LIKE his description, after living with these at that point .....for over half a year.
Lawrence gave me his own unsolicited and unexpected surprise confirmation. So, I re-read the literature on line, in the eBay ad, etc etc to find out more about this device., in December 2016. The spec given by the eBay seller was 1.3 milliohm ESR at 100 khZ, which is very good, and 64 Amps RMS, not too shabby.
By CHANCE, I notice WIMA made this same type of industrial cap, so I downloaded their datasheet on GTOs. Inside, I found out what I was likely responding to. These caps, besides being supremely low in ESR, ( as are some other caps ) it can ( UN - like other caps ) do INSTANTANEOUS PEAK currents, ( in my size : 5 uF at 1200 VDC ) - in the WIMA datasheet - of " about 1,500 AMPERES PEAK " !!!!!!!!!!!!!!!!!!!!!.
This instantaneous peak capability, I surmise, it what is now giving us " The leading edge of all musical transients, from the bass on up " as precisely described in November by my copy-cat nice friend Lawrence, who is a good listener.
In early 2017, I had urged my good personal friends, in audio, to acquire some of these caps for their own use, typically on ALTEC systems, so they are " covered ". The reports from users, are all very positive. In January, I had a St. Louis musician friend add them, in this order : first to his DIY 604 MLTL woofer crossover, then to his crossover's tweeter section, and finally to his amps.
This was the OPPOSITE of my practical experience in 4-2016, when the amps and speakers got the treatment ALL at one time. His report was very positive, each step. He has also has recently done his upstairs Valencias.
There is also a ALTEC User, a friend and Forum Member frorm Canada, that has had a similar experience in the last month, with his 604s and his VOTTS. . I asked these friends NOT to discuss this, until I decided to release the information to the audio people up here. Todd, today, thankfully has paved the way !!
The GTO 5 uF ARCOTRONICS eBay auction, most recent, is here for all to see:
5uF 1200V MKP Filter Caps GTO LOW ESR HQ arcotronics 2Pcs | eBay
These 5 uF at 1200 VDC film caps normally will sell in the $50.00 to $80.00 each range, so two for $16.95 is attractive. Kemet, who presently owns ARCOTRONICS, sells the same value part for over $50.00 but has a 50 part minimum.
Shipping from the Netherlands can be done in packages of up to five or up to thirteen pieces, advantageously. I am pretty sure John in the Netherlands has under 100 pieces left, and I would APPRECIATE IT if someone does NOT buy out all of his stock, so OTHERS can try this out, and we can " share " our results and experiences among more than just a few users. Many of the caps will be scratched and chipped from poor storage and handling. Not usually a factor .
In a separate post, IF any ( or enough ) folks are interested, I would be happy to cover what I have learned as far as how to most-effectively implement this part. The two mounting bolts I get from McMaster Carr, and they are BRASS, M-8s at 12 mm length, and a 1.25 pitch.
:-) No no, we do not use 26 AWG magnet wire ever, to connect these caps, .....for obvious reasons. I would be happy to assist any who have an interest.
In my humble opinion, and Old Guy, its ONLY " my " opinion, from listening for over a year, possibly the first in the USA to do so, this is the future !!
Thanks, too long a post !!
Jeff Medwin...... Low Ohms , Low ESR, High Current
PS, Here is a 6 uF VISHAY GTO, only an example, rated at 7,200 Amperes PEAK current :
http://www.vishay.com/docs/13094/gto4500.pdf
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Re: OT, ....New Capaciitor Type.............. for AUDIO Use.
Yep
I use them, the Acrotronics 4.5uF 1200v cap the "Hockey Puck"........
They are the Bomb ! I put them in my 26-26 DC 45 SET stereo amp amp
the amp transformed into a Dynamic , Clear sounding, Detail monster.
I just put the GTO's in my Valencia's rebuilt N-1500A crossovers. I've had them in
for a couple of weeks now. They changed my Valencia's into a sound closer to
what I've been getting from my 2-way Altec/JBL MLTL system ..... Oh yes
the 2-way MLTL has GTO's in it's crossovers also..
Thank you Jeff for the info on these caps.
Willie
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Re: OT, ....New Capaciitor Type.............. for AUDIO Use.
Quote:
Originally Posted by
drummerwill
Yep
I use them, the Acrotronics 4.5uF 1200v cap the "Hockey Puck"........
They are the Bomb ! I put them in my 26-26 DC 45 SET stereo amp amp
the amp transformed into a Dynamic , Clear sounding, Detail monster.
I just put the GTO's in my Valencia's rebuilt N-1500A crossovers. I've had them in
for a couple of weeks now. They changed my Valencia's into a sound closer to
what I've been getting from my 2-way Altec/JBL MLTL system ..... Oh yes
the 2-way MLTL has GTO's in it's crossovers also..
Thank you Jeff for the info on these caps.
Willie
With the crazy audiophile capacitor prices in mind... I have to ask....How much are they for typical crossover values as I want to build new Hiraga crossovers for my A5 VOTTs.
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Re: OT, ....New Capaciitor Type.............. for AUDIO Use.
Interesting! Google can't find any info, supplier, just that Kemet apparently owns Acrotronics.
GM
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Re: OT, ....New Capaciitor Type.............. for AUDIO Use.
Don?t know how they compare to expensive boutique caps but they are very much superior in all aspects to the PIO they replaced in my A7s &604-8Ks XOs.
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Re: OT, ....New Capaciitor Type.............. for AUDIO Use.
Quote:
Originally Posted by
GM
Interesting! Google can't find any info, supplier, just that Kemet apparently owns Acrotronics.
GM
I forget which USA supplier, but its either Mouser or Digi-Key who handles WIMA... and GTO caps. You can see they LIST them to purchase in various values, but do not stock them.
DOWNLOAD and review the WIMA GTO datasheet, just for your own information, a reliable source I'd say !!!
And the 5 uF at 1200 VDC Kemet is prohibitive, in 2017, in the USA, a 50 piece minimum order.
Nothing we have used before gets the leading edge of the transient like these caps as part of a " bundle " in a key positions in the chain. That is my experience, opinion,. and it corresponds with audio friends who have tried them, last ten months, at my instigation.
Have fun. I am.
Low Ohms ...... Jeff Medwin
- - - Updated - - -
Quote:
Originally Posted by
drummerwill
Yep
I use them, the Acrotronics 4.5uF 1200v cap the "Hockey Puck"........
They are the Bomb ! I put them in my 26-26 DC 45 SET stereo amp amp
the amp transformed into a Dynamic , Clear sounding, Detail monster.
I just put the GTO's in my Valencia's rebuilt N-1500A crossovers. I've had them in
for a couple of weeks now. They changed my Valencia's into a sound closer to
what I've been getting from my 2-way Altec/JBL MLTL system ..... Oh yes
the 2-way MLTL has GTO's in it's crossovers also..
Thank you Jeff for the info on these caps.
Willie
Willie,
Just for the record, the Arcotronics GTOs we have been using are rated a 5 uF at 1200, not a 4.5 uF value. They often measure close 5.05 uF on my uncalibrated Sencore.
Low Ohms.....Jeff Medwin
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Re: OT, ....New Capaciitor Type.............. for AUDIO Use.
Quote:
Originally Posted by
SD-50
Don?t know how they compare to expensive boutique caps but they are very much superior in all aspects to the PIO they replaced in my A7s &604-8Ks XOs.
Which were?
GM
- - - Updated - - -
Quote:
Originally Posted by
LowOhms
DOWNLOAD and review the WIMA GTO datasheet, just for your own information, a reliable source I'd say !!!
Nothing we have used before gets the leading edge of the transient like these caps as part of a " bundle " in a key positions in the chain.
OK, thanks!
OK, but if the signal chain the cap is in is 'faster' than the acceleration, decay, BW of the highest ['fastest'] transients, then the signal gets over-damped, which does lead to a perceived higher resolution, so like some of your other preferences is technically harmonic distortion.
GM
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Re: OT, ....New Capaciitor Type.............. for AUDIO Use.
Quote:
Originally Posted by
GM
Which were?
GM
- - - Updated - - -
OK, thanks!
OK, but if the signal chain the cap is in is 'faster' than the acceleration, decay, BW of the highest ['fastest'] transients, then the signal gets over-damped, which does lead to a perceived higher resolution, so like some of your other preferences is technically harmonic distortion.
GM
LOL. Listen and then decide, don't just think...........listen !!
RESPECTFULLY !!!
LOW OHMS
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Re: OT, ....New Capaciitor Type.............. for AUDIO Use.
LOL Don't just listen, think.
Mouser page with datasheet links-
WIMA GTO MKP Series Film Capacitors | Mouser
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Re: OT, ....New Capaciitor Type.............. for AUDIO Use.
Quote:
Originally Posted by
Old Guy
Mouser page with datasheet links-
dang look at the prices. I believe I could have paid less for a real GTO in the 70s
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Re: OT, ....New Capaciitor Type.............. for AUDIO Use.
Quote:
Originally Posted by
Phil-G
dang look at the prices. I believe I could have paid less for a real GTO in the 70s
" GTO"....... stands for : " extra money for Gas, Tires and Oil." ( My Dad's saying ).
Fifty to eighty dollars, industrially priced at retail, a POP, is well worth it, for what it does, that NO OTHER caps we have had, can do for the music !! This IS the future before our noses, from all I have heard of it.
BUT, the eBay seller has them offered now in a 50 piece lot of 5.0 uFs, for what ...$205 dollars, plus shipping, less than ten cents on the dollar.
Low Ohms.....Jeff Medwin
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Re: OT, ....New Capaciitor Type.............. for AUDIO Use.
Quote:
Originally Posted by
LowOhms
" GTO"....... stands for : " extra money for Gas, Tires and Oil." ( My Dad's saying ).
Fifty to eighty dollars, industrially priced at retail, a POP, is well worth it, for what it does, that NO OTHER caps we have had, can do for the music !! This IS the future before our noses, from all I have heard of it.
BUT, the eBay seller has them offered now in a 50 piece lot of 5.0 uFs, for what ...$205 dollars, plus shipping, less than ten cents on the dollar.
Low Ohms.....Jeff Medwin
I can't find what you are referring to...What is the name of the seller?
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Re: OT, ....New Capaciitor Type.............. for AUDIO Use.
Quote:
Originally Posted by
kwingylee
I can't find what you are referring to...What is the name of the seller?
Go to eBay.com and search for "GTO MKP Capacitor" or "RIFA PHG491".
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Re: OT, ....New Capaciitor Type.............. for AUDIO Use.
Quote:
Originally Posted by
Boli46
Go to eBay.com and search for "GTO MKP Capacitor" or "RIFA PHG491".
I have a friend, who in 2016 has compared the 10 uF RIFA to the 5 uF ARCOTRONICS 1200 VDC part we were using, and he prefers the latter 5 uF part.
I have not A-Bed them.
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Quote:
Originally Posted by
kwingylee
I can't find what you are referring to...What is the name of the seller?
Here you are :
5uF 1200V MKP Filter Caps GTO LOW ESR HQ arcotronics 1pc | eBay
As I previously reported, 1 to up to 5 or, 1 to up to 13 pieces, can come to the USA for a FLAT shipping cost.
Get a few extra, because eventually they have to be bought retail, as in WIMA GTOs from Mouser, and they are $50 to $80 each. When you use them as a bypass C in one spot, you will ( hopefully ) THINK to use them in another appropriate circuit location ( amps and crossovers !! ).
I like to have them all through the chain, after my 5U4GB rectifier tube, across C1 and C2 feeding the 2A3 Finals. And, two in each DIY 12 dB two way VOTT crossover, a 5 uF bypass cap, as part of the total "C" or uFs, in any critical position. I have done this, with fabulous result, since 4-2016, in my two-stage DC amps and in my 12dB VOTT A7-800 crossovers.
1,500 A. peak-instantaneous-capable in a "C" location, ( which we NEVER have had before in audio ) GETS the LEADING EDGE, of all music transients !!
Have fun. Tauratronics, the gentlemen eBay seller is named John Joosse, Netherlands...is a very good guy !! I THINK these ARCOTRONICS 5's, and other types, came into his hands as a result of KEMET buying that company...a guess.
Jeff Medwin .... Low Ohms
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Re: OT, ....New Capaciitor Type.............. for AUDIO Use.
[QUOTE=GM;1973607]Which were?
GM
GE and several other American brands bought surplus. The PIO replaced Solens which I found to have a grainy texture to the sound, if that makes any sense.
Cheers
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Re: OT, ....New Capaciitor Type.............. for AUDIO Use.
[QUOTE=LowOhms;1973704]I have a friend, who in 2016 has compared the 10 uF RIFA to the 5 uF ARCOTRONICS 1200 VDC part we were using, and he prefers the latter 5 uF part.
I have not A-Bed them.
- - - Updated - - -
So your friend compared a 10 uF cap to a 5 uF cap. How did he do that?
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Re: OT, ....New Capaciitor Type.............. for AUDIO Use.
[QUOTE=Boli46;1973710]
Quote:
Originally Posted by
LowOhms
I have a friend, who in 2016 has compared the 10 uF RIFA to the 5 uF ARCOTRONICS 1200 VDC part we were using, and he prefers the latter 5 uF part.
I have not A-Bed them.
- - - Updated - - -
So your friend compared a 10 uF cap to a 5 uF cap. How did he do that?
I do not know for sure. It was in his own design of a SE amp.
I am JUST GUESSING .... likely as a power supply bypass, one of a number of multiple caps, each successively smaller in uFs. The 10 uF or the 5 uF would likely be the " second " cap in the bundle, after a higher uF WIMA DC LINK main cap, and there may be four to seven smaller caps in parallel, for higher frequencies, as part of the bundle.
But do not take his word on this, and I am only guessing how he did testing. If you have the time, A-B them for yourselves and decide what YOU like the best. Use your system.
Regards,
Jeff Medwin
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Re: OT, ....New Capaciitor Type.............. for AUDIO Use.
[QUOTE=LowOhms;1973717]
Quote:
Originally Posted by
Boli46
I do not know for sure. It was in his own design of a SE amp.
I am JUST GUESSING .... likely as a power supply bypass, one of a number of multiple caps, each successively smaller in uFs. The 10 uF or the 5 uF would likely be the " second " cap in the bundle, after a higher uF WIMA DC LINK main cap, and there may be four to seven smaller caps in parallel, for higher frequencies, as part of the bundle.
This is the only way one can get wide bandwidth response out of a SE amp circuit, and full musical expression,.... multiple film cap bypassing.
But do not take his word on this, and I am only guessing how he did testing. If you have the time, A-B them for yourselves and decide what YOU like the best. Use your system.
Regards,
Jeff Medwin
So you're just guessing. Right. Perhaps you should wait until you are better informed before you spread your "wisdom" on this forum. Anyway, a comparison between a 10 uF cap and a 5 uF cap doesn't seem very useful to me.
I have ordered a fair number of the 5 uF Arcotronics and a few 2 uF Rifa PHG491 caps, but I will certainly not waste my time comparing them.
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Re: OT, ....New Capaciitor Type.............. for AUDIO Use.
Quote:
Originally Posted by
SD-50
GE and several other American brands bought surplus. The PIO replaced Solens which I found to have a grainy texture to the sound, if that makes any sense.
Cheers
OK, thanks! IME none are the requisite test instrument quality. I'm guessing this is what we called 'static', i.e. a deep background of white noise down around -40 dB where our hearing acuity has dropped to barely perceived and one reason what the mineral oil is for.
GM
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Re: OT, ....New Capaciitor Type.............. for AUDIO Use.
Quote:
Originally Posted by
LowOhms
" GTO"....... stands for : " extra money for Gas, Tires and Oil." ( My Dad's saying ).
Fifty to eighty dollars, industrially priced at retail, a POP, is well worth it, for what it does, that NO OTHER caps we have had, can do for the music !! This IS the future before our noses, from all I have heard of it.
BUT, the eBay seller has them offered now in a 50 piece lot of 5.0 uFs, for what ...$205 dollars, plus shipping, less than ten cents on the dollar.
Low Ohms.....Jeff Medwin
Be very careful, fakes are rampant in China. No I don't believe an eBay seller has more buying power than a major electronics vendor. Nothing legit has a 1000 percent markup these days.
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Re: OT, ....New Capaciitor Type.............. for AUDIO Use.
Quote:
Originally Posted by
Old Guy
Be very careful, fakes are rampant in China. No I don't believe an eBay seller has more buying power than a major electronics vendor. Nothing legit has a 1000 percent markup these days.
Thanks for the warning .
Hes in the Netherlands, not China, and this guy is a really GOOD guy. We have spoken religion together, and I pretty much now know precisely where he comes from Old Guy. Look at all the auctions he sponsors at any given time !!
I have a feeling he got a supply of ARCOTRONICS when the company folded, or was bought-out by KEMET in recent times.
The 5 uFs at 1200 VDC are really something else, have never experienced anything like them before in audio and music playback.
Am excited WIMA makes GTOs, but I have layed in a supply of these for my needs, future.
Jeff Medwin....Low Ohms.
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[QUOTE=Boli46;1973719]
Quote:
Originally Posted by
LowOhms
So you're just guessing. Right. Perhaps you should wait until you are better informed before you spread your "wisdom" on this forum. Anyway, a comparison between a 10 uF cap and a 5 uF cap doesn't seem very useful to me.
I have ordered a fair number of the 5 uF Arcotronics and a few 2 uF Rifa PHG491 caps, but I will certainly not waste my time comparing them.
Hi !!
Please share your experiences with them, once you sort it out.
It took me over a year, to get a handle on them. Thanks.
Jeff Medwin
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Re: OT, ....New Capaciitor Type.............. for AUDIO Use.
Quote:
Originally Posted by
LowOhms
Thanks for the warning .
Hes in the Netherlands, not China, and this guy is a really GOOD guy.
Jeff Medwin
Seriously? Are you that naive?
Fake merchandise can wind up anywhere in the world.
Good people get ripped off too. Did you see anywhere where I claimed he would sell them if he knew they were fake?
None of your information refutes my main point- 10 cents on the dollar should raise a red flag. You are talking to someone who makes a good portion of his income buying and selling electronics.
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Re: OT, ....New Capaciitor Type.............. for AUDIO Use.
Quote:
Originally Posted by
Old Guy
Seriously? Are you that naive?
Fake merchandise can wind up anywhere in the world.
Good people get ripped off too. Did you see anywhere where I claimed he would sell them if he knew they were fake?
None of your information refutes my main point- 10 cents on the dollar should raise a red flag. You are talking to someone who makes a good portion of his income buying and selling electronics.
Old Guy, ........................... 7-19-2017
Your posts up here, concerning if something is fake or real, due to pricing, OBSCURES the main gist of my posting.
The main thing people should get out of this thread is : we have a NEW type of Industrial Capacitor, that can be beneficially applied to audio circuits, and it very uniquely has a 1,500 AMPERE PEAK INSTANTANEOUS current capability.
In my opinion, the subjective sonic results of this device will bring any and all high fidelity systems to a new and higher plateau of performance, to varying degrees, based on the user’s SYSTEM implementation..
The sonic result was best-described by the first person, an audiophile in Arizona, who copied my own implementation…….He said to me … “ It GETS the leading edge, of all of music’s transients, from the bass on up, that we have NEVER heard before ”.
This has ALSO been the actual result in 2017's testing, in all four additional person’s audio systems, where I instigated them to use these caps . In Post #2 of this thread, Willie reported " they are the BOMB ".
These folks, intelligently employed and critically listened to them. ( So far, four out of the five persons, upon hearing them in their system, ordered extra units, for further applications in their home hi fi – in their amps and crossovers. ) Two have posted on this thread.
It has become very evident to me now, after employing these experimentally in my ALTEC system ( DIY direct coupled two stage amps / DIY VOTT crossovers ) since 4-2016, that the entire audio world is unaware of the need for high peak-instantaneous-current devices, in our favored audio pieces.
Likely so, because, these caps did not always exist, and so, NO ONE has ever heard what this can do, and what it actually does do - for music playback !!
If people have any questions, as to how to best employ these, I am only an amateur, but I would do my best to assist, based on my own direct experiences thus far.
Best wishes, to you all,
Low Ohms……Jeff Medwin
PS:
As of yesterday, I THINK the Netherlands seller, John, has only about 50 pieces of these 5 uFs at 1200 VDC ARCOTRONICS caps left. Some will have “ non-impeding ” cosmetic issues. Up to 5, or up to 12 pieces, are the same flat shipping cost.
Their ESR is rated at 1.3 milliohm at 100 khZ.
He also tells me he has 2,000 VDC rated ones, same uF value I believe. I never heard those.
- - - Updated - - -
[QUOTE=SD-50;1973708]
Quote:
Originally Posted by
GM
Which were?
GM
GE and several other American brands bought surplus. The PIO replaced Solens which I found to have a grainy texture to the sound, if that makes any sense.
Cheers
Yes SD-50, IME, IMHO, its EASY to beat Solen films, they are low low low on the list - sound quality wise, as to whats available now a days.
Also, IME, IMHO, easily.......there is NOT a PIO in existence, or any other cap I am aware of for that matter, that will do what these GTOs we use, will do in any optimized system !! No way, Jose !
Jeff Medwin....Low Ohms.
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Re: OT, ....New Capaciitor Type.............. for AUDIO Use.
Your ego is showing- you care more about your evangelistic posts than if someone gets ripped off.
And BTW anything not Altec specific is off topic.
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Re: OT, ....New Capaciitor Type.............. for AUDIO Use.
Sorry to disappoint O.G., But I just purchased 5 more GTO caps at about $7.50 a piece + shipping.
from our friend in the Netherlands.
I'm not worried about getting ripped off .... I've heard these caps ........ I'm getting mine
while I can still afford them !
Willie
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Re: OT, ....New Capaciitor Type.............. for AUDIO Use.
Quote:
The main thing people should get out of this thread is : we have a NEW type of Industrial Capacitor, that can be beneficially applied to audio circuits, and it very uniquely has a 1,500 AMPERE PEAK INSTANTANEOUS current capability.
This reminds me of a scene in a classic sci fi flic
The scene starts about 8:00 for those who want to cut right to it.
https://www.youtube.com/watch?v=llf2QKS8Vqk
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Re: OT, ....New Capaciitor Type.............. for AUDIO Use.
Quote:
Originally Posted by
drummerwill
Sorry to disappoint O.G., But I just purchased 5 more GTO caps at about $7.50 a piece + shipping.
from our friend in the Netherlands.
I'm not worried about getting ripped off .... I've heard these caps ........ I'm getting mine
while I can still afford them !
Willie
You are confusing me with Jeff- he's the one disappointed when anyone disagrees with his posts. I really don't care. But then I don't claim I'm the only one who can tell you something either.
Glad you are happy with your purchase- but your snide remarks should be beneath you.
I tried to make a professional post. You and Jeff do not.
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Re: OT, ....New Capaciitor Type.............. for AUDIO Use.
Quote:
Originally Posted by
bowtie427ss
I watched that on svengoulie. :D
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Re: OT, ....New Capaciitor Type.............. for AUDIO Use.
Old Guy,
Something to think about. I just reviewed this thread, and find your use of words, that attack others - me, and Willie who also posted, as being horriffic, judgemental and totally uncalled for.
Willie and I were / are totally polite to you.
And you are telling us " you make professional posts!! " Come on.
Some of your offensive ( to me ) personal - words are as follows :
" Naive, ego showing, evangelistic. and snide. "
QUIT judging and attacking people, and if you want to post in this thread, discuss the topic, which is a new type of capacitor, industrial, that we are applying to audio, and trying to share NEW information freely with other ALTEC users on this Forum.
Please be more considerate, henceforth, as to what you post and what you say about other persons .
Thank you very much.
Jeff Medwin.....Low Ohms.
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Re: OT, ....New Capaciitor Type.............. for AUDIO Use.
Quote:
Originally Posted by
LowOhms
Old Guy,
Something to think about. I just reviewed this thread, and find your use of words, that attack others - me, and Willie who also posted, as being horriffic, judgemental and totally uncalled for.
Willie and I were / are totally polite to you.
And you are telling us " you make professional posts!! " Come on.
Some of your offensive ( to me ) personal - words are as follows :
" Naive, ego showing, evangelistic. and snide. "
QUIT judging and attacking people, and if you want to post in this thread, discuss the topic, which is a new type of capacitor, industrial, that we are applying to audio, and trying to share NEW information freely with other ALTEC users on this Forum.
Please be more considerate, henceforth, as to what you post and what you say about other persons .
Thank you very much.
Jeff Medwin.....Low Ohms.
Bullcrap. You are extremely evangelistic and in total denial about it.
drummerwill's remarks were absolutely snide, I just pointed out he should be above such. I said nothing to him previously.
If anything his post suggesting I would be happy he got ripped off was WAY out of line. Its much closer to an attack than anything I said.
And you turn any criticism into a personal attack.
Got news for you, I have contributed to this group WAY longer than you. And if criticism is deserved it will happen. Once you post to a public forum you no longer own the post. Stop acting like you do.
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Re: OT, ....New Capaciitor Type.............. for AUDIO Use.
To O.G. Sorry I disappointed you again !
Willie
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Re: OT, ....New Capaciitor Type.............. for AUDIO Use.
A quick scan at eBay shows most of the Arcotronics caps posted to be simple MKP types and not GTO's. That should be noted for inexperienced buyers. In addition, I saw multiple listings with Arcotronics in the title from China.
So I stand by what I posted- make sure you are buying what you actually want- and prices that are too good to be true sometimes are.
Recently was advising some youngsters on a bulk purchase of drivers. The better Chinese BMS clones are about 99% as good as the real thing. We found them with a wide range of prices and quality. Some manufacturers, mostly the lower quality ones, even offered to label them BMS.
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Re: OT, ....New Capaciitor Type.............. for AUDIO Use.
That's depressing :(
GM
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Quote:
Originally Posted by
LowOhms
Hmm, AFAIK, a +30 dB transient is the highest seen on recorded music and very rarely at that, which if I did the math right = 1064 W peak, so these only seem warranted if there's no other options at this level and not high enough rated for a super-if system that can handle the [still compressed] space shuttle launch recording [> 10 kW IIRC].
Regardless, historically, components are combined to get the desired current rating, allowing relatively inexpensive components to be used, so not seeing the advantage here unless pricing is competitive with a small resistor bank of readily available, inexpensive caps.
GM
edit: Haste makes waste, should be watts, not amps, so current will of course be dependent on system impedance and in general much lower.
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Re: OT, ....New Capaciitor Type.............. for AUDIO Use.
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Re: OT, ....New Capaciitor Type.............. for AUDIO Use.
The main problem that I have is the credibility of the claims that Jeff is making especially after some of the bizarre claims made in the past. If Old Guy or Altecs Best say that this or that product or method is superior to every thing else, I take it as a fact. Why? They earned my respect.
For way to long I have heard Jeff state that some little tweak that he made made MAJOR differences in the sound, like adding multiple heavy wires for some short run of signal wiring. Or using an exact length of wire or multiples of it, just crazy off the wall stuff. The end result is I have learned to just ignore his ramblings.
Maybe these caps are revolutionary, I doubt it, but if a well respected and trusted EE comes forth and tells us that under testing it was shown to make big improvements than I would have to admit that Jeff was on to something.
Just because changing components in an amp or crossover changes the sound doesn't necessarily mean that the change is for the better. Sometimes it's just adding a "tone control" for lack of a better description.
Jeff, I'm not trying to beat you up here, but you reap what you sow.
If this post gets me banned from AUB, than so be it.
BillWojo
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Re: OT, ....New Capaciitor Type.............. for AUDIO Use.
can someone tell me why I would need a passive crossover when I have a perfectly good electronic crossovers?
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Re: OT, ....New Capaciitor Type.............. for AUDIO Use.
Quote:
Originally Posted by
Phil-G
can someone tell me why I would need a passive crossover when I have a perfectly good electronic crossovers?
Active crossovers eliminate a whole host of issues including phasing issues, and notoriously temperamental L pads. But I'm sure there is an Audiophool reason not to use them.
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Quote:
Originally Posted by
drummerwill
So you managed to find a good post among all the misleading ones on eBay? That's being a good little boy. But you can save yourself the trouble. I know there are a FEW good posts on eBay. The point you seem clueless about is tons of people read posts on this forum. The caveats are posted for them, You can't seem to see beyond your tiny little world.
To give you an idea how many lurkers this forum has, my profile has close to 6,000 views. And we only have what- a few hundred members?
Remember you started the crap- I said nothing to you. You just want to be Jeff's groupie, so you chose to jump in and be obnoxious.
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Re: OT, ....New Capaciitor Type.............. for AUDIO Use.
Welcome to the EXTREME SET, CAPACITOR, WIRE & TUBE PREFERENCE 'FORUM'. Oh, it benefits all ALTECS!!!!!!!???????
Whatever happened to the Altec User's Board reason for being???
There are other forums that cater to such extreme distractions. That's where they belong.
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Re: OT, ....New Capaciitor Type.............. for AUDIO Use.
Quote:
Originally Posted by
mah
Welcome to the EXTREME SET, CAPACITOR, WIRE & TUBE PREFERENCE 'FORUM'. Oh, it benefits all ALTECS!!!!!!!???????
Whatever happened to the Altec User's Board reason for being???
There are other forums that cater to such extreme distractions. That's where they belong.
Yeah, but if you can't post on those boards you have to come here.
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Re: OT, ....New Capaciitor Type.............. for AUDIO Use.
I don't know about you guys, but I usually keep my CD player/preamp/amps the same, and change out speakers for different Altecs. I found some amps/preamp that I like, and keep them mostly the same.
I think different speakers change the sound more than anything. My goal is to get my hands on as many different Altec speakers as possible, and test them all in my listening space.
For me, things such as different caps and speaker wire, only create very small changes. Some that I cannot easily perceive.