Hapo
Senior Member
- Joined
- Jan 11, 2022
- Messages
- 465
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- 327
That's correct. For people who buy this amp, impeccable measured performance is key. For that reason, I think this is a more significant issue that it otherwise would be.
...thank you for posting this...I was thinking it shouldn't matter if inaudible...
...I remember making fun of youse guys once, but here I am...
...just to keep things in perspective, I was driving Elac Unifi 2.0 UB52's with a Dayton APA 150 amp at one point... (grin)

Elac Uni-Fi 2.0 Review (bookshelf speaker)
This is a review and detailed measurements of the Elac Uni-Fi 2.0 bookshelf speaker. It was kindly sent to me by a member and costs US US $600 a pair on Amazon including Prime shipping. This review will be abbreviated for reasons that will become apparent later. Here is a shot of the speaker...


Review and Measurements of Dayton Audio APA 150 Amp
This is a review and detailed measurements of the Dayton Audio APA 150 power (speaker) amplifier. It is on kind loan from a member. It costs USD $168 from Parts Express including free shipping. If the specs of 75 watts/channel are true, you are getting a stereo amplifier for about $1 per...

...I don't require impeccable measured performance, but I have come to understand that measurements are directly related to sound quality and that most of the other stuff is bullshit...
...I replaced a Dayton APA 150 amp with a Niles SI 2150...this is significant in that a class D amp was chosen over an AB amp based upon Amir's measurements....
...this was a big shift for me...
...I still liked how my Elac Unifi speakers sounded, but traded them in on a pair Elac Carina BS243.4 because the guy @ Crutchfield said they would be less fatiguing w/o giving up definition, and Amire liked them... (grin)
...I still have those, because I kept forgetting I was auditioning them...
...it might be too late to be on point, but the point here is that the measurements have made it easier to find equipment that I really like...
...it is not that I didn't like the APA 150 after I read the review, but it certainly helped to understand the limitations of the amp and explain some of the things I was hearing and blaming on other sources...
...I am slightly ashamed to admit that I really liked the APA 150 and still do, but like the Niles SI 2150 more...I would have never considered it, a class D amp (ug) (shudder) w/o seeing the measurements...
...the Niles amp doesn't really measure all that well, but it is good enough to replace the APA 150 and make a noticeable improvement in my low-ball hi-fi system for very few $$$...
...I only know this because of youse guys...it's youse guys what keep Schitt honest...literally and figuratively...
...now I am looking Class D amps to shade my Adcom GFA 5500, which I deary love like a family member...
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