pro amp question

[Stutz320]

I am looking to do a cheap high power system. Can I run a QSC GX5
with a preamp tuner?

 

[markw]

Probably, but you might need an adaptor cable to go from the tuner/pre, which usually have RCA outputs to fit the amp's 1/4" TRS inputs.

Unless, of course, what the amp shows as "phono" inputs are really line level inputs. Then these would work fine.

 

[avnetguy]

Unless, of course, what the amp shows as "phono" inputs are really line level inputs. Then these would work fine.

Yes, the "parallel phono" inputs are line level in so no need for a custom cable unless you're doing a long run from the pre-amp.

Steve

 

[Stutz320]

I should have included this link
QSC - GX Series Amplifiers


Thanks Mark and Steve

 

[Gordonj]

Yes, the "parallel phono" inputs are line level in so no need for a custom cable unless you're doing a long run from the pre-amp.

Steve

And here is the back panel of the amp to support what Steve is saying.

http://www.qscaudio.com/images/products/gx/GX_rear_panel_1024.jpg

Gordon

 

[KEW]

That is great that they have three different connections for inputs.
Does anyone know if QSC did anything to change the sensitivity between connections? I think the pro connections usually run a stronger signal and sometimes you will get hiss using a pro amp when paired with a consumer pre.

 

[Gordonj]

That is great that they have three different connections for inputs.
Does anyone know if QSC did anything to change the sensitivity between connections? I think the pro connections usually run a stronger signal and sometimes you will get hiss using a pro amp when paired with a consumer pre.

They do not mention the input V on any of the inputs but I would imagine that since pro gear does not generally utilize RCA inputs for +4 signals that you would be safe in assuming that QSC has equipped the inputs accordingly.

Pro-gear line-level signal is generally 1.23V or +4dBv, while consumer gear line-level is generally 0.32V or -10dBv (although not standardized).

Gordon

 

[avnetguy]

They do not mention the input V on any of the inputs ...

It's 1.2 Vrms.

I "assume" that is for all inputs as they only state the one value.

Steve

 

[Gordonj]

It's 1.2 Vrms.

I "assume" that is for all inputs as they only state the one value.

Steve

My bad. I should have said that QSC did not differentiate the input V of the inputs....

Back to our regular program...

Gordon