OT, ....New Capaciitor Type.............. for AUDIO Use....

[drummerwill]

To O.G. Sorry I disappointed you again !


Willie

[Old Guy]

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.

[GM]

That's depressing

GM

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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

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.

[drummerwill]

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Here you go Old Guy .... just for you


5uF 1200V MKP Filter Caps GTO LOW ESR HQ arcotronics 1pc | eBay

Willie

[BillWojo]

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

[Phil-G]

can someone tell me why I would need a passive crossover when I have a perfectly good electronic crossovers?

[Old Guy]

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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Here you go Old Guy .... just for you


5uF 1200V MKP Filter Caps GTO LOW ESR HQ arcotronics 1pc | eBay

Willie

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.

[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.

[Old Guy]

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.

[Elitopus1]

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.