i have a JBL 600.1 and a pioneer DEH-P6400 HU(the original one w/ the dolphins on the screen)
the HU book says it has 2.2v rms RCA outputs, and the JBL amp has an input level that ranges from 4v and down.
i have a 1ohm load on the amp and the gain is set to bout 3/4 (bass boost on the amp is at 0dB but to get it to sound rite i have to turn the Bass Boost on the HU all the way up!!!)...I thought you usually didnt have to set the gain that high!!!
the amp doesnt seem to be clipping...does anything here sound weird to anyone???or is this just something that happens???
Yeah, those head units have pretty weak preouts, With that head unit, I wouldn't say that it's uncommon to have the gain that high. That 2.2V may not even be an RMS rating, I don't remember Pioneer ever stating that being RMS, they just list "max output voltage" which could be a peak value for all you know.
Anonymous
Posted on
ok...thanks
it was just freaking my out, my sub sounded good and the gain was that high!
if i set the bass boost on both the amp and HU to 0dB (0 on a -6 to +6 scale on the HU), and turn the HU volume up to bout 3/4 to set the gain...i can almost turn the gain all the way up before the amp clips...weird aint it....
I have 2 audiobahn 12's and a sony 1200 watt amp wired to 2 ohm x2 and my gain is all the way up and the boost is all the way up but hits louder than hell
Anonymous
Posted on
its prolly loud, but more than likly it sounds like CRAP!!!