HI Folks,
A lurker here for years.
Title says it all.
I did a search but really did not come up with anything.
Looking for advise as to which Pass Amp to build to drive a set of Original Quads (ESL-57).
Since Pass Amplifiers F1 thru F7 are each so unique in topology and design,
I don't want to make a miss-step considering the Quads unique qualities as a speaker load.
Mini-Aleph? One of Pass's F series of amps or its variants (M2)?
One of the amps (Amp Camp) or kits from the DIY Audio Store?
I am looking for a sublime combination setting off the Quads potential.
Thank you and best regards,
Curt
A lurker here for years.
Title says it all.
I did a search but really did not come up with anything.
Looking for advise as to which Pass Amp to build to drive a set of Original Quads (ESL-57).
Since Pass Amplifiers F1 thru F7 are each so unique in topology and design,
I don't want to make a miss-step considering the Quads unique qualities as a speaker load.
Mini-Aleph? One of Pass's F series of amps or its variants (M2)?
One of the amps (Amp Camp) or kits from the DIY Audio Store?
I am looking for a sublime combination setting off the Quads potential.
Thank you and best regards,
Curt
Nowadays I listening my QUAD ESL57s with my diy J2 mostly.
Although I like better my balanced DIY Sony VFET amps, I think J2 matching better to QUADs.
Of course my monster Aleph drives them without any hesitation as well.
I haven't tried these with my balanced F4s yet.
I think M2 worth a try.
Well, if I build one, I will definitely tried it.
Regards,
Gyuri
Although I like better my balanced DIY Sony VFET amps, I think J2 matching better to QUADs.
Of course my monster Aleph drives them without any hesitation as well.
I haven't tried these with my balanced F4s yet.
I think M2 worth a try.
Well, if I build one, I will definitely tried it.
Regards,
Gyuri
Looks like this is the impedance plot for your speaker.
untitled.bmp]untitled.bmp]untitled.bmp (image)
It's only looking nasty above 10kHz. Not too bad.
An externally hosted image should be here but it was not working when we last tested it.
untitled.bmp]untitled.bmp]untitled.bmp (image)
It's only looking nasty above 10kHz. Not too bad.
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I know that graph, it will be much worse, because I have two pair of QUADs,
so I will need an amp, which can drive two QUADs in parallel.
so I will need an amp, which can drive two QUADs in parallel.
In that case it will be looking nasty above 4kHz and crazy difficult above 10kHz.
That's a bit more to worry about.
Maybe an F4 with a good preamp.
F7 is probably the best simplest solution or M2 maybe.
As well as all the other ones listed above.
That's a bit more to worry about.
Maybe an F4 with a good preamp.
F7 is probably the best simplest solution or M2 maybe.
As well as all the other ones listed above.
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O.K..
So I've listening most of my amplifiers to driving my four Quad ESLs.
Although I like most my Pass Sony VFET amps the best, I must have to say, my Diy J2 drives better the Quads.
I've tried my F4s, (I have four of them, in stereo balanced operation.)
I haven't satisfied enough, maybe because my balanced Whammy's can't drive them properly.
After all, the very best is my 20 years old monster Aleph in this circumstances.
My good old-new Aleph
It can drive my parallel Quads without any hesitation.
It is only laughing loudly at about that parallel impedance graph above.
I'm quite in a trouble, what could be better, than this?
I would like to build some UGS UP amp.
I can't decide, it would be better to build one UGS UP, to scaled up, just as my Aleph monster, or just to build two stereo of them, as they are.
But I must have to say, that 20 years old Big Aleph never sounded so good just as now, with parallelled Quad ESLs.
So I've listening most of my amplifiers to driving my four Quad ESLs.
Although I like most my Pass Sony VFET amps the best, I must have to say, my Diy J2 drives better the Quads.
I've tried my F4s, (I have four of them, in stereo balanced operation.)
I haven't satisfied enough, maybe because my balanced Whammy's can't drive them properly.
After all, the very best is my 20 years old monster Aleph in this circumstances.
My good old-new Aleph
It can drive my parallel Quads without any hesitation.
It is only laughing loudly at about that parallel impedance graph above.
I'm quite in a trouble, what could be better, than this?
I would like to build some UGS UP amp.
I can't decide, it would be better to build one UGS UP, to scaled up, just as my Aleph monster, or just to build two stereo of them, as they are.
But I must have to say, that 20 years old Big Aleph never sounded so good just as now, with parallelled Quad ESLs.