Front - rear instrument input comparison

[Mladen]

Is the instrument input to which I connect the guitar from the front identical to the rear one? Is it possible to preset Bassguy: the instrument rear input the dry scene (clean) has a darker sound and the Lead (driven) is lighter (high end) in comparison with the front instrument input - dry scene (clean) has a lighter sound and the Lead is darker than using rear input ?!

 

[Mladen]

I can hear slighly difference although in User Manual stands:
" The front Instrument input always overrides the rear instrument input. This allows you to build
a rig using the rear input—with a wireless unit, for instance—and then change to the front input
simply by plugging in a cable. There are no settings for this. The input switches automatically.
Both front and rear Instrument inputs feature our “Secret Sauce IV” circuitry, which — among other
things — lowers the noise floor using a proprietary technique and special analog input circuitry.
The Input 1 block sets the impedance for Input 1 automatically, or can be manually overridden
for “loading” effects on your pickups."

 

[FractalAudio]

The front input has Auto-Z technology. The rear doesn't. If the preset/scene has a block that lowers the input impedance the inputs will sound different.

 

[Mladen]

The front input has Auto-Z technology. The rear doesn't. If the preset/scene has a block that lowers the input impedance the inputs will sound different.

Thank you very much for the information.

 

[Del Pedro]

The front input has Auto-Z technology. The rear doesn't. If the preset/scene has a block that lowers the input impedance the inputs will sound different.

Hm, what's the idea behind that? I think it should technically be very simple to connect both inputs before the auto z circuit.

 

[boyce89976]

Hm, what's the idea behind that? I think it should technically be very simple to connect both inputs before the auto z circuit.

Since I use both inputs, this is an interesting idea to me, or at least have an impedance selector on input 2.

 

[PBGas]

From the manual:

• Both front and rear Instrument inputs feature our “Secret Sauce IV” circuitry

So then they are not both the same?
Oh well...then I guess I'll have to run the input to the front instead.

 

[unix-guy]

From the manual:

• Both front and rear Instrument inputs feature our “Secret Sauce IV” circuitry

So then they are not both the same?
Oh well...then I guess I'll have to run the input to the front instead.

Secret Sauce is circuitry for lowering the noise floor.

That's not the same as the input impedance.

 

[giantslayer]

Huh… maybe that’s why the axe fx fuzz hasn’t been quite doing it for me lately. I made a nice setup with a little snake for all my wires from the pedalboard to the axe fx and I’ve been using the rear input.

 

[Gl4th]

Mmm…honestly I’m not liking what I’m reading here.

This means that on the website there is a false statement. I attach a screenshot, but you can read yourself here: https://www.fractalaudio.com/iii/

@FractalAudio could you please explain if what’s on the website is the truth?

 

[Gl4th]

Secret Sauce is circuitry for lowering the noise floor.

That's not the same as the input impedance.

That’s not what is written on the website. See my post.

 

[Gl4th]

Same on the manual. Front AND rear.

 

[willowdale]

I only plug into the ‘rear input’ when I want that "brown sound"

 

[Gl4th]

I only plug into the ‘rear input’ when I want that "brown sound"

Ok, but form the manual and the website it should be the same as the front input. 🤷🏻‍♂️

 

[FractalAudio]

The website and manual are incorrect. I have instructed the appropriate entities to correct the errors and update the media.

 

[crdark]

Have you actually noticed a difference before knowing it?

 

[Jim DeSchamp]

If you look for something wrong all of the time you will always find it something to bitch about. Reminds me of one of the reasons I closed the guitar. It seemed the winning was getting worse and worse and 28 yrs for me was long enough. Loved the pro guys!

 

[Mladen]

Have you actually noticed a difference before knowing it?

Yes, I have. That's the reason of my question here.

 

[crdark]

Yes, I have. That's the reason of my question here.

The post I was referring to was deleted.

 

[Del Pedro]

To be honest this looks like a design flaw to me. I can't think of any reason why the two inputs should be treated differently.