Greetings all,
Newbie here--just bought my first couple modules, one of which was Doepfer's A-124 Wasp filter. My question is... is this thing supposed to hiss?
I finally put a spectrum analyzer on it, and I'm getting a single 23.7 kHz, -27.2 dB transient from the thing. Even with no sound going through it. In fact, as soon as I turn on my rack, the -20 dB light on my mixer recognizes sound on that track.
Whether the filter is set up as HP or LP, fully open or fully closed, I still get that spike. Oddly enough, when the filter is closed, the spike rises to -19.8 dB.
Is this part of the "character" of this filter? Other than the hiss, it seems like a worthwhile module.
I checked the rest of my modular setup, and a similar transient spike is present then too, but at a more acceptable -59.5 dB.
Any suggestions? Or did I just get a bum Wasp?