Did I buy a broken amp?


I purchased a used amp to mate with a dac / preamp in the same line which I own. The new amp is suppose to be 150 watts into 8ohm.  When I play the amp at 35/100 volume, I barely hear any sound.  I need to get volume  to at least 75/100 or 80/100 to provide adequate listening sound. 75/100 sounds how 50/100 should sound. (And so on)   It does not seem to clip or distort.   Could the amp be broken or does it just not provide enough juice for my speakers? 
Equipment:
Preamplifier / Dac Wadia 321
amplifier:wadia 315 
Apple TV source 
speakers: Kef 201/2
puffbojie

Showing 1 response by paulcreed

Don't know if you have access to Ground and In tap hole on volume pot to run in series 2 resistors. My  Preamp with goldpoint stepped pots 9:00 was my preferred loud listening level now am at 3:00 to be at preferred listening level by adding 2 resistors. I may tweek resistor value a little. I'm now where you are on volume position level and like it. It's strange to be at 3:00, I'm use to being between 11:00 and 1:00 but as long as I have headroom before distortion I'm okay. My problem was there was to much gain between each step and could not get sweet spot on volume level, now I can. I used the Takman carbon resistors I was told they were warmer than the metal, I also thought they made the amp sound a little better, maybe who knows.