Yes, it is definitely there.Anyone able to hear a very faint flapping noise coming from the tweeter when their BT20A Pro is idling, when the volume knob is set between 12 o'clock to max?
Yes, it is definitely there.
Yes, everything stock, with the 32V power supply. The flapping is only evident when I move my ear quite close to the tweeter (but it is there).I presume yours is with the stock NE5532P DIP8 op amps?
Yes, everything stock, with the 32V power supply. The flapping is only evident when I move my ear quite close to the tweeter (but it is there).
I had a similar problem with a different but similar class D amp - it turned out to be the plug and not being correctly grounded.I have to put my ear an inch to the tweeter to even hear it, so its not really a problem.
I tried the 32V and 48V stock PSU, and swapped the NE5532Ps for OPA2134PAs, all of those made no difference to that flapping.
The FOSI PSU has a two-pronged plug, so the amp is not really designed to be grounded via the PSU.I had a similar problem with a different but similar class D amp - it turned out to be the plug and not being correctly grounded.
OK well as I said it was a similar noise problem but a different amplifier / manufacturer - I haven't had any problems with my BT20A Pro using the stock PSU.The FOSI PSU has a two-pronged plug, so the amp is not really designed to be grounded via the PSU.
If you don't care about bluetooth and you don't mind the linear potentiometer of the tb10d, you're good to goIs this a good upgrade from the tb10d or a07? I don't care about bt
Seems fosi audio V3 is more suitable for you.Is this a good upgrade from the tb10d or a07? I don't care about bt
To be honest, i don't see it as an upgrade.Is this a good upgrade from the tb10d or a07? I don't care about bt
What are the differences with the bt20a potentiometer? In terms of sound, I meanIf you don't care about bluetooth and you don't mind the linear potentiometer of the tb10d, you're good to go
None, it's just a question of "feel" or ease of control. doesn't matter in terms of sound quality.What are the differences with the bt20a potentiometer? In terms of sound, I mean
The only "problem" are the treble. I find them fatiguing with Elac Debut Reference listening rock... Even with the A07. Very clean but harshNone, it's just a question of "feel" or ease of control. doesn't matter in terms of sound quality.
No difference in terms of sound. Simply the linear potentiometer of the tb10d brings the volume to very high levels very quickly, furthermore the minimum volume in which both channels play at the same volume is high enough, so as not to be able to listen to low volume background music.What are the differences with the bt20a potentiometer? In terms of sound, I mean
Cheap class D amps tend to be unstable with certain loads, and that sometimes manifests itself in overly prominent highs. My A07 sounds fine with my ATC SCM19v2, but not so good with my Mission LX-.3 MKII.The only "problem" are the treble. I find them fatiguing with Elac Debut Reference listening rock... Even with the A07. Very clean but harsh