Sounds like you and "Rex" are havin a blast. Anxious for you fellas to relate your impressions of those giant radial horns.
Just gotta get you guys turned on to Ashly amplifiers now.
Anybody that has been following my antics with my HeathKit AS101's knows that I'm on an upgrade path to make them sound the best that they can.
Yesterday I installed my 902 drivers with new aluminum diaphragms from GPA along with the adapters I made to go from 7/8" throat to the 1" inlet 811b horn. After installing them I found the midrange to be very hot but I could hear potential in the sound quality.
A few months back I found a set of 30904 attenuators on ebay for cheap. So today I grabbed my friend that got me into this whole Altec mess and we got to work on them. Before I did anything I let him play some music and he agreed that they needed a bit of work.
So we opened the speakers back up and installed the attenuators. Right away we could hear the difference, much smoother with no peaky midrange, overall very very nice. I could live with these just as they are now, they have never sounded better.
I remembered that I had a CD with a very slow frequency sweep so I played that. I've played this before in the past while they were fairly new to me and found that the higher midrange was very bright, so much so that I would turn the volume down so I wouldn't damage the diaphragms. I could hear the dips and peaks in the volume as the frequency increased. After today's modifications there were no noticeable dips or peaks till my hearing gave out.
My friend Dave is 28 years old and has always taken good care of his ears. As we played the sweeps I looked at him and when it became silent I said "I'm Out". He could hear it to 20KHz and tell me it stopped. Said it dropped off somewhat at the higher end but was nice and smooth.
We continued playing music for quite some time and chatted about Altec stuff. We spent a little time checking out the 291-16K drivers that I picked up, he was surprised at the great condition that they were in. Thanks to elitopus1 on the board, I have a set of Symbiotik diaphragms coming in later this week.
When they arrive I'm going to install them and drop by his place for some Altec fun. He has a huge set of EV fiberglass horns, about 3 foot across that will fit up to the Altec drivers. Also has a set of large JBL 15" bass bins. I dropped him off with a Rane crossover to check out, it was intermittent and I fixed a few cracked solder joints on the board. So next weekend if he is up to it we should be cranking out some tunes large format style. Should be fun.
BillWojo
Sounds like you and "Rex" are havin a blast. Anxious for you fellas to relate your impressions of those giant radial horns.
Just gotta get you guys turned on to Ashly amplifiers now.
Not all vegetables make good leaders.
Just gotta get you guys turned on to Ashly amplifiers now.
Man you shouldn't say things like that publicly! I only have 4 Ashly amps! Now the price is gonna go up again
Don't buy Ashly amps
Last edited by Elitopus1; November 28th, 2016 at 12:34 PM.
You need a spider shim to install them. Once a diaphragm has been shimmed, it can be removed and replaced in the SAME driver, in the SAME orientation with no special procedures or shims.I have a set of Symbiotik diaphragms coming in later this week.
When they arrive I'm going to install them and drop by his place for some Altec fun.
If you're importing diaphragms from one large format driver to another, you should follow the procedure for installing a NEW diaphragm.
http://www.greatplainsaudio.com/LgDrvrDiaRepl.pdf
Did you know Ashly built amps that look like this?Man you shouldn't say things like that publicly! I only have 4 Ashly amps! Now the price is gonna go up again
Don't buy Ashly amps
They're MOSFET too.
Last edited by bowtie427ss; November 28th, 2016 at 02:58 PM.
Not all vegetables make good leaders.
What?!?Did you know Ashly built amps that look like this?
They're MOSFET too.
I did not know that
They appear on ebay now and then. I don't think they were made in large numbers. But, they are out there, we've even discussed them here briefly.
Not all vegetables make good leaders.
So how are the Ashly powerflex amps compared to the FET or FTX series? I know those two series are good but have no experience with the powerflex. Those are either 4 or 6 channels?
Or I should say are there any Ashly mosfet amps I should avoid?
Congrats Bill glad it worked out !!!!!
Bowtie, I was not aware of the part about the spider shims. Is there some other way I can do this? I do have Mylar shim stock from 0.0005 to 0.030 thickness in sheet form. Maybe I could make one? I was thinking that it was as easy as the small format drivers.
BillWojo
I have absolutely no experience with these amps whatsoever.Originally Posted by Elitopus1
I just want one.
Not all vegetables make good leaders.
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