I use to use Stax Class A amps with Quads when I was a dealer for both of them but never had the Stax speakers. They OUGHT to work with them and some show up occasionally on ebay but I can't speak from experence; but you would think that products from the same company of the same era would be compatable. They were very good amps, I had both the mono and stereo versions.
Stax stax ESL-F81 - please help
I am trying to figure out what amps would drive F81 best. I have a Class A 20W custom made ECC88/MOSFET Amp that works great with high sensitivity speakers but fails badly with Stax, McCormack DNA-1 Deluxe that drives Stax fine but is not as fluid as Aleph 3, Pass Aleph 3 works fine but clips at higher SPL and Symphonic Line RG11 that works nicely but does not bring anything special to the table. These are very demanding speakers.
Frequency Characteristics: 40Hz ~ 20KHz (-10dB)
Impedance: 4Ω or full band
Sound pressure level: 73dB (equivalent 8Ω 1W/1m)
Maximum input instantaneous: 300W (equivalent 8Ω)
With impedance all over the place from 2 to 32 depending on the frequency. Any suggestion for under 2K tube or sand amp?
Frequency Characteristics: 40Hz ~ 20KHz (-10dB)
Impedance: 4Ω or full band
Sound pressure level: 73dB (equivalent 8Ω 1W/1m)
Maximum input instantaneous: 300W (equivalent 8Ω)
With impedance all over the place from 2 to 32 depending on the frequency. Any suggestion for under 2K tube or sand amp?