Acoustic preamp question

[Bertotti]

Nominal input impedance of a GE-7 appears to be 1Mohm, same as the Axe FX III, so there's something else going on beside buffering if the sound changes with the GE-7 in circuit.

Being a bit more logical, but maybe more complex, I notice the buffer circuit on the GE-7 seems to do a bit of RC filtering. Looks to me like a low pass somewhere a little north of 7 kHz, but my analogue electronics knowledge is a bit rusty. I guess one could always tone match a bypassed GE-7, and run that tone match as a block straight after the input. That really ought to sound the same.

Liam

As I understand it all are 1Mohm except the front jack if auto z is active, if not then it’s 1Mohm

 

[kevinleighton]

How long are your cables? Try without the Boss and use a short short cable. Just for grins. If the cable length is providing a high capacitance a buffered pedal would help correct the losses involved. So try one short cable and no pedal and see what happens.

Evidence

How long are your cables? Try without the Boss and use a short short cable. Just for grins. If the cable length is providing a high capacitance a buffered pedal would help correct the losses involved. So try one short cable and no pedal and see what happens.

Evidence audio cables, you will hear a difference !

 

[Pagzy]

Cole Clark FL2 straight into AFX3 sounds amazing... actually it sounds amazing plugged into anything. Gibson J45 Progressive is my best sounding acoustic unplugged but the LR Baggs Lyric sounds crap straight into anything Way too many mids, it needs heavy EQ or Tone Matching.

 

[BBN]

Thats with the pedal in chain but not engaged?

No, I'm talking 2 independent/different signal chains.

Guitar -> FM3 (eq) -> Mixer
vs.
Guitar -> GE7 -> Mixer

Even when I add a Keely Comp, and put a Line6 HX Stomp in the chain (with the GE7), it sounds better than the FM3.
(so more cables and more possible tone suck could/should happen with the non-FM3 set up)

The FM3 sounds 'thin' in comparison. No amount of eq tweaks in the FM3 change the character difference that I can hear.
I wish it wasn't true - I'd rather use my FM3 for acoustic gigs.

Maybe I'll play more with the input sensitivity, I haven't tried that yet.

 

[Budda]

Do you think the audience will ever notice this difference? If not, just roll with the fm3.

 

[BBN]

Do you think the audience will ever notice this difference? If not, just roll with the fm3.

I'm usually the guy saying that to my friends using tube amps....lol

When I'm playing acoustic gigs, it's quiet enough sometimes that I will notice (since there are no drums/bass).
It's only my playing experience that I care about in this case.

Appreciate everyone's input there, I'm going to play around with the input sensitivity and see if I can solve this.
I'm hoping it's pilot error.

 

[Budda]

does fm3 tone match or can you make one some other way? Should eliminate the issue i bet (friend with axe3 maybe?)

 

[BBN]

does fm3 tone match or can you make one some other way? Should eliminate the issue i bet (friend with axe3 maybe?)

I've got an Axe 3, so I can.