Atma-sphere S-30 with Reference 3A?

It is enough power with the DeCapo's sensitivity (92db?), only question is does the DeCapo have a smooth impedance curve which is important with the OTLs, 30 watts should be enough watts though. The M-60s are way more than enough watts with my 89db Merlins (twice the wattage = 3db) (which do have a very smooth impedance curve).

I take it that if Mrderrick's M60s work with the DeCapo the impedance curve should be fine for the S-30.

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

A little off topic, I've been thinking about acquiring an atma-sphere OTL to use with my Merlin's. Currently use Quicksilver V4's with a Joule 100 mk3 amp. Just curious if you think the S-30 would provide enough power. I listen in a relatively small room. Thanks.

Audiofeil is correct: for the S-30 the loudspeaker impedance should be a minimum of 8 ohms across the board, sensitivity notwithstanding.

Redcarerra, I would recommend the M-60s for Merlins, not the S-30.

Atma-Sphere dealer.