old school amp question
Posted: December 5th, 2008, 7:40 pm
Hey Stereo gurus - My girlfriend had a 7 year old pioneer headunit. She got a 12" sub box put in the back by a shop about 3 years ago. Fast forward to now - the pioneer dies and i replace it with a $100 jvc unit. She thought they installed an amp with the sub, but I can't find it. The wiring was kinda wierd - lt rear pos to rt rear neg, or something like that. I didnt really pay attention, just chopped off the old wires and hooked up the new wires according to the jvc instructions - i hooked up the lt rear speaker to the sub.
Now, the stereo and sub sounds like crap.
I have two options - figure out the funky cross wiring the shop did, or try to install an old school amp that I took out of an old pickup - this amp had a bad rt channel. I don't have the cash to buy a new amp, but my girl is not happy because she can't go "boom boom" anymore (I'm talking about the stereo guys - get yer head of the the gutter!).
The old amp is a Rockford Fosgate 2600x, dynamic power = 2x 85w into 2 ohms, rms power 2x60w into 2 ohms. It's got a crossover card that can be slotted for high pass, low pass and full range. It's got rt and lt rca inputs. For outputs and power it's got: "b+", "ap" and "gnd". For "bridged output" it shows a diagram of l+ and r-.
I'm don't know much about stereos, so if any of you have some input, please dumb it down for me.
Here's what i'm thinking on the amp: b+ means hot to battery, AP means pwr antennae or amp wire from stereo, and gnd is ground. Am I ok so far?
Anybody know the shops funky cross wiring trick to avoid using the amp?
Thanks for any ideas!
Now, the stereo and sub sounds like crap.
I have two options - figure out the funky cross wiring the shop did, or try to install an old school amp that I took out of an old pickup - this amp had a bad rt channel. I don't have the cash to buy a new amp, but my girl is not happy because she can't go "boom boom" anymore (I'm talking about the stereo guys - get yer head of the the gutter!).
The old amp is a Rockford Fosgate 2600x, dynamic power = 2x 85w into 2 ohms, rms power 2x60w into 2 ohms. It's got a crossover card that can be slotted for high pass, low pass and full range. It's got rt and lt rca inputs. For outputs and power it's got: "b+", "ap" and "gnd". For "bridged output" it shows a diagram of l+ and r-.
I'm don't know much about stereos, so if any of you have some input, please dumb it down for me.
Here's what i'm thinking on the amp: b+ means hot to battery, AP means pwr antennae or amp wire from stereo, and gnd is ground. Am I ok so far?
Anybody know the shops funky cross wiring trick to avoid using the amp?
Thanks for any ideas!