Am I ok to do this - fender HRDX content

benvall

I know this maybe better placed at the tc electronic forum but I'm not a member there and there are some very wise people here so I thought I'd ask.

So, I have a fender hotrod deluxe, a Marshall jmp1 pre amp, a G system and a nova drive.

Currently, I mainly use the nova drive in loop one of the G system and run into the front of the HDRX.

I've read that the jmp1 can be placed in one of the G system's loops and used almost as a pedal.

Could I use the HRDX's pre amp in one of the G's loops? For example, loop 1 - nova drive, loop 2 - HRDX pre amp and loop 3 - jmp1.

Therefore, I could use loop 1 and 2 together and loop 3 on its own.

Is this safe to do (as long as I get the levels right), I don't want to kill the amp?

I hope people can follow this, if I get a chance I'll draw a picture as it'll make more sense that way. I just don't want to damage the amp. Thanks

ICBM

Yes, but be very careful you don't ever switch on the JMP1 loop at the same time as the HRD preamp loop - you'll then essentially be running a distortion generator (the JMP1) in the FX loop of the amp, which is a bad idea and can cause damage.

It is quite rare, but one of the exact examples I've come across of a preamp (a Roland GP100 if I remember right) in the loop killing an amp was with a Blues Deluxe, which has the same loop as the HRD - it can cause feedback (outside the range of human hearing) via the amp and blow the loop circuitry.

If you're only ever running *either* the HRD preamp or the JMP1, it should be safe to use the Nova Drive as well.

benvall

Thanks @ICBM have another wisdom. so if there is a delay in the loops switching between each other would this be an issue?

ICBM

benvall said:

Thanks @ICBM have another wisdom. so if there is a delay in the loops switching between each other would this be an issue?

Not if there's a silent delay - ie one goes off before the other comes on - but possibly if one comes on before the other goes off.

I don't know what the time interval before the chip blew was when the amp was run like that.