True Fully Balanced Amplifiers


What are the least expensive true FULLY BALANCED power amplifiers available?
Adcoms, Rotels, and Parasounds have balanced inputs, but are not truly balanced.I have an Adcom GFP-750 that is Fully balanced and would like to try it with an amp that is also fully balanced at a reasonable price.
daltonlanny
You can find used McIntosh C7100 here on Agon for approx. $650 or so. It sounds great in my system with Mc preamp.
The Hafler 9505. Designed by Jim Strickland of Acoustat fame. Excellent sounding amp.
BAT VK200 for solid state or VK60 for tube...fully balanced, reasonably priced, sound wonderful...I've owned them both...

As Eldartford correctly pointed-out, any stereo amplifier operated in bridged-mono mode is a "fully balanced" amp. Therefore, the lowest-priced fully-balanced amp is the cheapest stereo amp you care to purchase...although this may not be the answer to your prayers ;-) Since you already have a balanced preamp, you have the ability to run a stereo amp in bridged-mono mode by running opposite-polarity signals to the 2 inputs and connecting your speakers across the (+) speaker terminals (this is true of conventional solid-state designs - tube amps will require an additional connection between the 2 sections of the output transformer, and you should consult the manufacturer for the correct wiring arrangement). This can work extremely well with an appropriate pair of amps but, in practice, not all amps are really appropriate. Generally speaking, the better an amp is at handling low-impedance / difficult loads, the better it will adapt to bridged-mono operation.

Best regards,

Steve McCormack
www.SMcAudio.com