rock fosgate 250 a2 help.

[bitpoop]

on the left side speaker outputs I get 4.7k ohm's
on the right side I get 1.2 ohm's ?

 

[bitpoop]

after retesting the right side, when connected to the speaker it pulls the speaker down and it stays there? does that mean a transistor is stuck?
the left side works but the sound is not clean.(like its on high pass)

 

[90scaraudio]

Yes its getting rail voltage. You should have no or very little DC on the speaker outputs.

 

[Perry Babin]

#62:
There could be several problems. Re-check the transistors to see if they're shorted. If they are not, check the gate resistors for the output transistors.

Does the amp draw excessive current at idle?

 

[bitpoop]

the amp idles fine now that i changed the voltage regulator.
all the resistors seem fine.
i am going to re-solder all the chips, maybe a bad connection?
then retest it.

 

[bitpoop]

ok after re-soldering the right side has sound.
the sound is not clean, at vary low volume when i switch the LP,HP cross over,
the speaker will go thud thud thud. more so in hp then in low pass?
the sound from the speaker,sounds like a blown speaker.
it is the same on both channels.
what does each side share that would effect the sound?

 

[bitpoop]

leg 1 and 3 on 9540 read 26/24 vdc and a neg 26/24 on the 540.
4.2 vdc without the b+ on the gate leg.