BTA10250D BT install help!

f575gtc · #1 03-19-2011, 08:22 PM

Hello guys, I just bought the 10 inch sub 250watt and I am installing it in a 2011 Subaru Impreza STI and using its factory unit. The unit does not have RCA so I ran 4 speaker wires from the output lines for the rear speakers to the back into the subs harness and plugged into the sub using its plain wire connections, now I heard bazooka tubes before and they were loud, but mine has VERY little bass, I can tell the sub is on and it is working but I don't get the bass shaking I heard from the same sub in a different car.

Is it because the speaker lines I am tapped into do not have enough of a signal current to the sub? I thought the sub was supposed to amplify what ever signal I sent to it.
I already turned the dials on the subs gains up and it makes very little difference.
Any advise? Thanks a millions

heavyduty · #2 03-19-2011, 08:30 PM

Quote:

Originally Posted by f575gtc

Hello guys, I just bought the 10 inch sub 250watt and I am installing it in a 2011 Subaru Impreza STI and using its factory unit. The unit does not have RCA so I ran 4 speaker wires from the output lines for the rear speakers to the back into the subs harness and plugged into the sub using its plain wire connections, now I heard bazooka tubes before and they were loud, but mine has VERY little bass, I can tell the sub is on and it is working but I don't get the bass shaking I heard from the same sub in a different car.

Is it because the speaker lines I am tapped into do not have enough of a signal current to the sub? I thought the sub was supposed to amplify what ever signal I sent to it.
I already turned the dials on the subs gains up and it makes very little difference.
Any advise? Thanks a millions

Welcome to the Bazooka Forum. High Level Inputs are always a verified high voltage source. Check for a possible phase issue. If the Inputs are connected out of phase there will be little to no bass.

f575gtc · #3 03-19-2011, 08:46 PM

I looked into the out of phase possibility which I don't understand 100% all the terminals are correct, I did not cross wire any negatives with positives and when I turn the gains knob counterclockwise I lose what ever bass I have and when I turn clockwise I gain some back.

heavyduty · #4 03-19-2011, 09:00 PM

Quote:

Originally Posted by f575gtc

I looked into the out of phase possibility which I don't understand 100% all the terminals are correct, I did not cross wire any negatives with positives and when I turn the gains knob counterclockwise I lose what ever bass I have and when I turn clockwise I gain some back.

Disconnect one channel at the harness and reverse the leads.

You can worry about adjusting the gain after you have the Tube working. What level do you have the crossover set? Another troubleshooting question for you, where and how is the Tube mounted in your STI?

f575gtc · #5 03-19-2011, 09:07 PM

I have the hatch so I have the sub front facing the back of the car with the rear door closed I have about 4 inches of clearance between the sub and the door.

f575gtc · #6 03-19-2011, 10:02 PM

so if I understand correctly I should remove lets say the positive gray and negative gray and leave just the greens to see if it was a signal cancellation and if it improves the bass?

heavyduty · #7 03-19-2011, 10:25 PM

Quote:

Originally Posted by f575gtc

so if I understand correctly I should remove lets say the positive gray and negative gray and leave just the greens to see if it was a signal cancellation and if it improves the bass?

You can disconnect one channel to see if the bass improves or you can simply switch the positive and negative.

f575gtc · #8 03-19-2011, 10:41 PM

Ok I will try it tomorrow and report

f575gtc · #9 03-20-2011, 10:55 AM

Ok so I removed one of the channels and it is doing the same thing the audio even cuts out at high volume any ideas?

f575gtc · #10 03-20-2011, 01:17 PM

Quote:

Originally Posted by f575gtc

Ok so I removed one of the channels and it is doing the same thing the audio even cuts out at high volume any ideas?

Ok so I fixed the cutting out, I balanced the radio to the rear a tiny bit and it stopped but the bass only really pounds at max volume, is that a design of the amp in the sub? or a limitation of the radio? is there anyway to amplify the signal to the sub inline?

finally something very odd, I have the bass knob and from my understanding the knob maxes out at the subs lowest setting and then lets you lower the gains from there, the thing is the second I plug in the knob it greatly reduces the bass even at max on the sub and on the knob, is that a defective knob?