Which power amplifier match audio research ref 3

If this thread is still active, then I re-repeat what I and other have said. The Ref 3 will sound best with a late model ARC amp, e.g., ARC VS-115 or the REF 110. I used to own the Ref 3 and now Ref 5) and still own the VS-115. It's a great combo.

This really depends on what speakers you are trying to drive.

enjoy

Whatever amp it is, in addition to the high input impedance you will also want an amplifier with a balanced input. If the input of the amplifier is differential, so much the better.

I totally agree with Atmasphere's balanced/differential observations. That's how the Ref 3 shows its full potential.
However I am not so sure on the impedance-match limitation.
The Aleph 5 input is only 25Kohm balanced differential, quite bellow the 100Kohm suggested mark. It's a great match with my easy speakers. Magic midrange and great dynamics.
Additionaly, if you check Stereopile's measurements of the Ref 3, it is inferred the distortion is very low on loads above 10Kohm.
As stated before, the most common mismatch is power-amp/speakers.

A dealer is announcing a new Ref 75 power amp (only balanced inputs as usual in the Ref series). Although quite expensive, this may also be a great match.

Hello Raybanma , I 'm still using with my REF 3 two monoblocks BAT VK1000 , due to the fact in one unit two amps , they are used in biamp mode for my B&W 800 speakers.
The inputimp. of the BAT is a perfect match for the REF3 .The sound together REF3-BAT is for me a marriage
in heaven.
Greatings from the Netherlands Hans