ashok said:
Hi Bgt,
You said "..............A bit like my UCD180's and 400's....."
Does that mean that the Amp-1B is lacking in some area like bass or midrange clarity or HF ? Or do you mean that it is only lacking in power ? What are the differences you find ......if there are any.
Thanks,
Cheers.
Ashok,
I meant the clarity is enormous, the bass is there, midrange also. On average speakers(Wharfdale Diamond 9.1) it is so difficult to find differences. You're talking about very, very small differences. I have to test them with my better speakers(Driades 91) still.
After listening for hours on end I am truly amazed by this small amp. Maybe the combination of amp. and speakers. I first used an active preamp, Rotel RC 990BX, NAD C162 but am now on the passive preamp again. This is the best combination(for me) because it is the cleanest/most honest emotion wise.
There must be something that makes this amp sound so clean/bright without sssssssss's. Maybe the way the feedback is arranged=before the output filter. Who knows?
The UCD's are also clean but different. Maybe a bit less bright, a bit darker. (and they use AD8620's)
You certainly get very addicted(with all these PWM amps) to music this way.
The only thing I changed were the input caps. Used some Sanyo audio caps, 22uF/16V.
Cy Bert