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Atma-sphere S-30 with Reference 3A?

Has anybody used this combo? If so, would love to hear your comments on their synergy. I am needing to upgrade my amplifier and have looked at Atma-sphere and others to pair with my Reference 3A De Capo's. I use a CEC TL51XR for my source, my room is of medium size. Thanks!
sean34

Showing 2 responses by audiofeil

audiofeil
4,011 posts
 
I don't agree with the other posters.

The S-30 loves high impedance loads; a minimum of 8 ohms. The power output lessens with lower impedances in Atma-Sphere amps.

I'd check the impedance curve of the De Capo. If it is not ruler flat you could have a problem. Given that and a sensitivity of 92dB, I would not recommend use of this amp for the De Capos.

Dealer disclaimer
audiofeil
4,011 posts
 
I've never used the Speltz autoformers and can't speak to their effect on output power with impedance changes.

However the previous statement "Raising the impedance will also reduce the amplifier's power output" is incorrect with Atma-Sphere amps.

In fact just the opposite is true. The S-30 outputs 45WPC into a 16 ohm load and 60WPC into a 30 ohm load.
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