Jacky Thrilla
Member
Hi all,
I am quite new in this board and I am not a native speaker.
I've recently bought a used Herbert Mk2 (I guess it's from 2010 or 2011). It's a versatile and great sounding amp, very well designed, which was the reason I decided to buy one. Played only with my guitar plugged in, everything is working well. Massive sounding amp, I love it.
Now that I want to use my gear with which I am recording at home together with the Herbert I ran into the following issue:
As soon as I hook up my Fractal AX8 with recommended humbuster cables (4CM) into any of the three FX-Loops of the Herbert the amp begins to produce a very loud noise, I mean it's not just a loud hiss or something it's a really loud hum. It's so loud you can't play the amp anymore. Even on bedroom level the hum is way too much.
Doing some tests:
1. Unplug the Input cable: the noise is gone
2. Unplug any of the cable from the FX-Loop: noise is still there
3. Connecting the AX8 in the same fashion with another amp (Marshall DSL f.ex.) no noise at all, so it seems not the pedal is the source for that
What I did to resolve the issue:
First thing that came into my mind: V1 preamp tube is faulty! So I decided to replace the whole tube set, the preowner told me he never changed the tubes. That wasn't quite correct, he at least changed the V1 preamp tube, because all other tube were Ruby Tubes except the V1 it was a TAD 12AX7. I replaced preamp and powertubes with a matched set from TAD but nothing changes with the noise, still the same amount of noise is going on.
I already tried to tweak around with the global I/O settings of the AX8, but the amount of noise varies just a little, because it's so loud.
Reason?
So, did anybody experience a similar issue with his Diezel?
Greetings
Jacky
I am quite new in this board and I am not a native speaker.
I've recently bought a used Herbert Mk2 (I guess it's from 2010 or 2011). It's a versatile and great sounding amp, very well designed, which was the reason I decided to buy one. Played only with my guitar plugged in, everything is working well. Massive sounding amp, I love it.
Now that I want to use my gear with which I am recording at home together with the Herbert I ran into the following issue:
As soon as I hook up my Fractal AX8 with recommended humbuster cables (4CM) into any of the three FX-Loops of the Herbert the amp begins to produce a very loud noise, I mean it's not just a loud hiss or something it's a really loud hum. It's so loud you can't play the amp anymore. Even on bedroom level the hum is way too much.
Doing some tests:
1. Unplug the Input cable: the noise is gone
2. Unplug any of the cable from the FX-Loop: noise is still there
3. Connecting the AX8 in the same fashion with another amp (Marshall DSL f.ex.) no noise at all, so it seems not the pedal is the source for that
What I did to resolve the issue:
First thing that came into my mind: V1 preamp tube is faulty! So I decided to replace the whole tube set, the preowner told me he never changed the tubes. That wasn't quite correct, he at least changed the V1 preamp tube, because all other tube were Ruby Tubes except the V1 it was a TAD 12AX7. I replaced preamp and powertubes with a matched set from TAD but nothing changes with the noise, still the same amount of noise is going on.
I already tried to tweak around with the global I/O settings of the AX8, but the amount of noise varies just a little, because it's so loud.
Reason?
So, did anybody experience a similar issue with his Diezel?
Greetings
Jacky