Setting gain on a PJB amp

[franzbassist]

So, I'm loving my new PJB M-300 amp, but getting the most out of it, literally, is leaving me slightly perplexed.



As you can see, the "Input Level" has -10dB and +10dB marked on it, which I believe means that with the knob set to high noon it's at unity gain.

My question is this, is it more important to have this knob at unity gain (and therefore adjust the gain in my active basses accordingly), or should I make the gain going into the amp from the bass as big as possible and trim the input level on the amp?

Cheers

Gareth

[geoffbyrne]

The power section works best when it's getting a full signal, so what I tend to do is turn up the master till I can hear it properly(!) and turn up the gain (you need to turn down the master at the same time) until I can hear the pre-amp overdriving. Then I reduce it a tad till it's clean (or, generalyl, to taste)
and I'm good to go.

Try giving your low mids a little boost & see how you like it.

G.