That's not the case with my unit.
I'd check that again carefully with a test tone. Record the DI signal and look at the level.
That's not the case with my unit.
With a 440Hz test tone and only shunt blocks, it's as you said.I'd check that again carefully with a test tone. Record the DI signal and look at the level.
Does that happen on clean sounds, too? I get a 6 dB reduction in input level when I switch from Left to L+R Sum. On distorted sounds, that translates to same output level but less gain.That's not the case with my unit. The only thing that changes is the noise level, by ~6-7dB
I'll check this tomorrow and report back.Does that happen on clean sounds, too? I get a 6 dB reduction in input level when I switch from Left to L+R Sum. On distorted sounds, that translates to same output level but less gain.
IIRC, the level reduction happens in software, not in hardware. So if it's not happening for you, maybe it's a firmware issue.
This is indeed the case. No software issue.Does that happen on clean sounds, too? I get a 6 dB reduction in input level when I switch from Left to L+R Sum. On distorted sounds, that translates to same output level but less gain.
IIRC, the level reduction happens in software, not in hardware. So if it's not happening for you, maybe it's a firmware issue.
I'm not sure which way to read what you just said.This is indeed the case. No software issue.
I'm not sure which way to read what you just said.
Me too, as there really isn't much of anything significant on the input board. One series inductor for noise (which I suppose could have been damaged by ESD), a zero ohm resistor in series with signal ground and a 100n cap that floats the input ground. So it'll will be interesting to see if the board helps. I'll keep everyone posted.Ah, now I get it. It does sound like a hardware issue at this point. I'm eager to hear your results with the new input board.
That would indeed be cause for a good laugh, but alas my testing has revealed it is just a standard old run o' the mill Fractal Audio Axefx II XL rear input. Nothing more special than any other Fractal Audio Axefx II XL rear inputI'd laugh if your rear input was just extra low-noise instead...
Bad ground on your front input board.
Well I did try to make that as cryptic as possible. The 6dB reduction happens as it should when you switch from Left to L+R Sum.
LSS... I had a friend try my noise test on his XL+ and his front and rear Input 1 have roughly the same noise level with the guitar volume turned up. Mine has about a tenfold increase in noise from the front input to the rear and compared to his. I have ordered a new instrument input board from Fractal and should get it this week. I'll do some tests as I swap it out and them post my results.
Thanks for the reply Cliff. Would that be between the chassis and the input board or the input board and main board? I'll check all of it when I have it apart today, but maybe narrowing it down might help.Bad ground on your front input board.
Dunno.Thanks for the reply Cliff. Would that be between the chassis and the input board or the input board and main board? I'll check all of it when I have it apart today, but maybe narrowing it down might help.
Yay!Received the new front input board yesterday and installed today. Seems to have fixed the issue. Noise floor is much lower on the front input now.
Back to making music