• WANTED: Happy members who like to discuss audio and other topics related to our interest. Desire to learn and share knowledge of science required as is 20 years of participation in forums (not all true). There are daily reviews of audio hardware and expert members to help answer your questions. Click here to have your audio equipment measured for free!

Topping L30 problems


Mar 22, 2020
The problem just got magically fixed I have no clue how. Started with -9 dB up to +9 no noise at all in the settings.
I just connected my Hifiman Sundara to my newly arrived Topping L30, it makes a lot of hissing noise and sounds like the music is far away. I have the settings on the amp as HPA and +9dB. I use an RCA to 3.5mm aux which I have plugged into my MOBO's line out. I really don't know what is wrong, I don't own an external DAC, but I haven't had any problems with the DAC built in my desktop specs (SupremeFX S1220A codec, plus Texas Instruments® RC4580 and OPA1688 op-amps).
Last edited:
Top Bottom