Originally Posted by pdxrealtor
I have the unbalanced mini dsp. Am i going to have issues using a pro audio peavy?
Hate to say this but "it depends". If you actually plan on taking FULL advantage of the amp, then yes, it matters. However, if your amp is overkill for your operating point, then maybe not. However, missing half the voltage is missing a lot (in excess of 3/4's) of the power.
The peavy has a maximum gain structure of 40x ( 20*log(40) = 32 dB, remember voltage gain..not power). To get that "rated power" you need ~2.2Vrms (splitting for simplicity between 2 and 4 ohms). The Mini DSP unbalanced out is only 0.9V rms. Therefore in theory you get ~16% of the amps capability. The CV5000 I believe has a lower level to hit "rated power" for specific load is ~1.5V rms (+36dB) which is lower thus you should get nearly 36%. In any case...you will need a gain box or a new Mini DSP. But even then the MiniDSP balanced (2.0Vrms) is still "short" of what the peavy needs to hit max power. Sucky..isn't it?
The clean box pro however can gain an unbalanced circuit to balanced to maximum output of 21 dBu or 2.8V rms. With a gain of 40, you can almost hit full RMS voltage output output (peavy does between 120-130 Vrms output)
Note: Everything assumes that the datasheets are in Vrms which is the NORM which makes it possible to measure with a simple DMM @ 60 Hz. But some companies aren't normal.
Note: I believe behringer iNuke series is @ +42 dB for the gain which works well the unbalanced miniDSP you have