Hello. This will be my first post here, so please be patient with me. ANY assistance with this will be greatly appreciated.
I just purchased a Krell S-300i integrated amp ($750 via Facebook) and it has the following issues with the volume control:
1. As you are manually turning it up the volume suddenly drops, sometimes by dozens. The quicker you move the dial, the worse the issue.
-If you use the remote the volume works as it should.
2. The push-action does not do anything. You can feel the click, it just doesn't switch anything.
I've read there is an encoding chip behind the knob that tends to go bad. Does anyone have a service manual or schematic for the S-300i?
Also...any recommended preventative actions to take while I have the unit on the bench? This amplifier looks to have very high-quality parts, other than this volume control that I have learned has several common issues.
So far, I absolutely love this amp, as long as I have the remote handy. I am coming from a Musical Fidelity A300 and really didn't expect this kind of improvement from another integrated.
Many Thanks!
Jared W.
Detroit
I just purchased a Krell S-300i integrated amp ($750 via Facebook) and it has the following issues with the volume control:
1. As you are manually turning it up the volume suddenly drops, sometimes by dozens. The quicker you move the dial, the worse the issue.
-If you use the remote the volume works as it should.
2. The push-action does not do anything. You can feel the click, it just doesn't switch anything.
I've read there is an encoding chip behind the knob that tends to go bad. Does anyone have a service manual or schematic for the S-300i?
Also...any recommended preventative actions to take while I have the unit on the bench? This amplifier looks to have very high-quality parts, other than this volume control that I have learned has several common issues.
So far, I absolutely love this amp, as long as I have the remote handy. I am coming from a Musical Fidelity A300 and really didn't expect this kind of improvement from another integrated.
Many Thanks!
Jared W.
Detroit
Hi! I don't know this amplifier, but I'd open the amplifier for to see the faulty component, the encoder. You could try to lubricate it, but I'd think it should better to think in to replace.
You can too to move it forward and back forward a few minutes, maybe the contacts cleans itself.
Look in internet by the terms "alps or bourns rotary encoder with push switch" .
You can too to move it forward and back forward a few minutes, maybe the contacts cleans itself.
Look in internet by the terms "alps or bourns rotary encoder with push switch" .
That's sortof normal, the volume dial is designed to respond slowly to slow inputs and quickly to fast inputs it's a feature and is actually quite useful once you get used to it. Having said that I wouldn't expect the volume to go down when turning it up. Pushing it does nothing, this is ok.
Last edited: