Major non-linear frequency response with new dac !!!

[pibroch]

I want to know if I got a faulty unit without having to send it back to the factory which is the other side of the world. I want it independently tested using best practice. In seeking out an audio engineer to do the job what should I look for please?

 

[theveterans]

Care to show the linearity test of your DAC?

 

[Currawong]

Nobody is going to answer your question when it doesn't have any details.

 

[ProtegeManiac]

I want to know if I got a faulty unit without having to send it back to the factory which is the other side of the world. I want it independently tested using best practice. In seeking out an audio engineer to do the job what should I look for please?

An audio engineer or engineering student with access to a real time analyzer that takes line inputs.

What DAC is it anyway? There might already be independent reviews that includes that.

Also sometimes what people perceive as a DAC having a different response can just be sufficient voltage variance that when some amps compensate for one it hits noise or distortion, or the voltage is too high what you think as the same output level at the headphone/speaker is actually louder.

 

[pibroch]

An audio engineer or engineering student with access to a real time analyzer that takes line inputs.

What DAC is it anyway? There might already be independent reviews that includes that.

Also sometimes what people perceive as a DAC having a different response can just be sufficient voltage variance that when some amps compensate for one it hits noise or distortion, or the voltage is too high what you think as the same output level at the headphone/speaker is actually louder.

Thanks - will proceed as you suggested. Don't wish to publicly name the DAC at this stage. Thanks again for your assistance.

 

[Currawong]

IMO a better approach would be to write: "My set-up is x > y > z and something doesn't sound right. I've tried swapping whatever components around with some or other results. Can someone help me nail down what is wrong?"

Asking for help with what you think is the problem often turns out, after a lot of mucking about, to be the result of something completely different.