2014 SGS I had factory radio flashed and 6x9 added to bag lids with new amp and dsp at Indy shop. It sounds good. However I noticed that when I turn the fader all the way to the rears there is no sound coming out. When I have fader set to middle/normal I hear sound coming out. Is this normal? I don’t know if this is part of the tune. It just seems weird to me that I couldn’t just listen to rear 6x9s ?

 

Since you're using a DSP, I would imagine the only inputs being used are the front channels. If the rear channels are not used as inputs as well on the DSP, there will be no sound when you fade to the rear.

 

I was hoping you would respond. So this is normal then. When I put fade all the way to the front sound still comes out in rears as well. Forgive my ignorance.That’s one of the reasons I paid to have it done.

 

It's not ignorance brother. If you don't know, the only way to learn is to ask questions.

Most installers will only use the front channel inputs from the HU to the DSP, unless the customer specifically asks to retain the fader. When using a DSP, if tuned correctly, the fader would never be needed anyway. Now once the signal goes through the DSP, it's sent to the amp and the amp disperses the sound to the different speaker locations.

 

What Bates mentioned about using the front channels only for the DSP inputs. On the 14 and up SG and RG there is a 4 pin plug for the rear channels that more than likely isnt hooked up to the DSP.

 

its not normal, its just how your system is wired, they did not use the rear channel output. so the fader on the Hu is useless.

 

I'll chime in that I use my fader control quite a bit depending on what helmet or even jacket I am wearing. These variables will often change the path the sound (especially from the rear) has to take to reach your ears. Also extended high speed riding might require a notch towards the rear to balance things out.

OP I'd say if you want the fader control (I would) go back to the installer and tell him you want it wired in. In my mind this is just laziness on his part. The inputs are there I don't see why they shouldn't be used.

 

Thanks fellas I really do appreciate all your input

 

Agreed. It's good to have but at the same time I can't hear the TP speakers at highway speed at all. I can if I'm biased to the rear at city speed. The SO also tells me she's getting most of her sound from up front. Still, if you have the inputs and the speakers are back there why not?

 

I will also chime in a say that if you have a stock 2 channel setup on the factory boom, it will need to have those rear channels activated via a flash as the are inoperative in stock setup from the factory. Look at your hu and see if you have the fade option and it is operative. You will be able to move it front to back if it is operative. If it isnt you wont be able to move the bar front to rear and will need it flashed.