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RE: Try this . . .

24.162.126.158

In Reply to: RE: Try this . . . posted by tlea on July 10, 2024 at 19:49:43

"Okay, I think I (and others) may have misunderstood. From your initial post I understood you to say that the volume when connected to the B&K was very low compared to the volume of the HK alone.

You wrote: "I get sound out of the speakers but at a non-amplified volume. . ." I took this to mean that the sound level was at a whisper regardless of the volume control on the preamp. But maybe I misunderstood."

I interpreted the OP the same way. It may be that there is a gain mismatch between the preamp output and the amp input resulting in the power amp, even though more powerful, not being able to play as loud as the HK receiver alone.

"Political correctness is America's newest form of intolerance, and it is especially pernicious because it comes disguised as tolerance."

- George Carlin

Follow Ups:

RE: Try this . . . - tlea 06:28:29 07/11/24 (1)
I suppose it's possible but seems unlikely. I glanced at the specs.

The B&K amp has a gain of 28v, which is textbook typical. Input sensitivity is 1.4v with input impedance of 33.2 kOhms. Nothing outrageous.

The HK doesn't state gain values for the amp and preamp sections, not surprising for a receiver. But any competently-designed SS amplifier is going to have a gain value in that range. Maybe you'd have to turn the volume knob a bit more (or less) but not dramatically.

This is a lot of speculation. The next step would be to try the power amp with a different preamp. Or get it on the bench and do some measuring.

. . . in theory, practice and theory are the same; in practice, they are different . . .
- RE: Try this . . . - Tre' 12:02:47 07/15/24 (0)
  "The next step would be to try the power amp with a different preamp."
  
  I thought he said he did? He used his phone as a source.
  
  "I did hook my phone to the amp from the 3.5mm on the phone via 2 rca to the input of amp and the volume level out of the speakers is EXTREMELY louder than being connected to the HK"
  
  Tre'
  Have Fun and Enjoy the Music
  "Still Working the Problem"

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