Modwright KWA 150 and Proac D38R

01-02-11: Tvad

"Equating an amp/speaker match on 97dB/12 ohm speakers to an amp/speaker match on 91dB/4 ohm speakers demonstrates a basic lack of understanding of the topic."

Tvad, I was simply commenting that in the 6moons review the KWA-150 did not overwhelm even more efficient speakers. The KWA-150 is in fact capable of driving far less efficient speakers than the mentioned Proacs. I was simply assuring the OP this choice of amp will not over power the Proacs. You're reading too much into my comments.

Andrew, if you read the 6moons review of the KWA-150 you will notice reviewer Srajan Ebaen tested the KWA-150 with a pair of 97db/12ohm efficient Zu Essence speakers and there were no issues. Coming back to your OP, Srajan commented bass was excellent and low level detail was "phenominal" paired with the Zu's.

Do you have the opportunity to hear the ProAc with any other amp at all? If low volume performance is important to you, I recommend verifying you can get that from the speaker.

Some speakers are much better at low volumes than others, and it's not necessarily something a different amp will address. It might help, but just saying that ideally I would make sure.

Another variable to consider is the preamp: what was the preamp you heard these with, and what are you planning to use?

Hi Andrew, the Proac speakers you mentioned are senstive speakers (91db) and rated to 250 watts into 4ohms which is a fairly benign load for an amp, and the KWA-150 is putting out close to 400 watts into 4ohms. It uses 2 x 500va transformers (1000va) and there is a LOT of current on tap. Lou from Daedalus Audio in your previous thread commented the KWA-150 has the best bass of any amp he has ever heard. "Best" not to be confused with "most" since that is a pointless goal. I was very impressed with the solidity, texture and detail of the bass. Very musical!

I listen ProAc d38 and KWA-150, it is sung much better than my former Naim by 250.2 amplifier. I loved Naim-ProAc a sheaf and when has made amplifier replacement, have grown fond of system even more. It is enough bass with this amplifier.