Amp issues, help needed!

[Slees435]

Hi All,

Got a budget build in the boot of my '82 Fiesta - specs as follows:

• Pioneer SPH-10BT Head Unit
• Edge ED7300 Amp - running Edge 6.5" Components and an extra set of heavy duty tweeters
• Vibe Powerbox 400 amp running an Edge 10" Sub

Each amp had a separate RCA feed from the head unit and was working perfectly

This weekend I added:

• Pair of Fli 350 6x9's - connected to the front speaker outs from the main harness
• Pair of Sony XPLOD 6x9's - connected to the rear speaker outs from the main harness.

Since I added the 6x9's to the car the amps refuse to work for more than 20 seconds - even at low volume with the gain turned down. What is the reason for the amps not working since I have added the 6x9's to the speaker out on the Head unit?

Could it be drawing too much from the alternator perhaps? Any help would be greatly appreciated as I am close to giving up now!

I should add, if I unplug the wires from the 6x9s the amps work fine again even at full gain

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[Kickstand Premium Member]

What do you have the SP-P/O set at?

 

[Slees435]

I am pretty sure it is set at sub/full, but will double check

 

[huberoy123 10+ year member]

Hi All,

Got a budget build in the boot of my '82 Fiesta - specs as follows:

• Pioneer SPH-10BT Head Unit
• Edge ED7300 Amp - running Edge 6.5" Components and an extra set of heavy duty tweeters
• Vibe Powerbox 400 amp running an Edge 10" Sub

Each amp had a separate RCA feed from the head unit and was working perfectly

This weekend I added:

• Pair of Fli 350 6x9's - connected to the front speaker outs from the main harness
• Pair of Sony XPLOD 6x9's - connected to the rear speaker outs from the main harness.

Since I added the 6x9's to the car the amps refuse to work for more than 20 seconds - even at low volume with the gain turned down. What is the reason for the amps not working since I have added the 6x9's to the speaker out on the Head unit?

Could it be drawing too much from the alternator perhaps? Any help would be greatly appreciated as I am close to giving up now!

I should add, if I unplug the wires from the 6x9s the amps work fine again even at full gain

Have you considered purchasing a 4 channel amplifier, dedicated to the 6 x9 speakers.

 

[Kickstand Premium Member]

I am pretty sure it is set at sub/full, but will double check

Try FUL/FUL

 

[Slees435]

Try FUL/FUL

just tried, no difference

 

[Slees435]

Have you considered purchasing a 4 channel amplifier, dedicated to the 6 x9 speakers.

I haven’t - it is a possibility but doesn’t change the fact that I should be able to run speakers off both the harness speaker outs and the rca outs simultaneously,,,

I think the next step is going to be to rip out all of the wiring and start from scratch again to eliminate any possible wiring issue.

 

[Carlos1son]

You shouldn’t run any speaker not amplified even if it’s doors. Get them amplified it’s a world of difference.

 

[metalheadjoe 10+ year member]

To clarify: do you only have one speaker per channel from your deck? If you have multiple speakers per channel, the internal amp cannot support the load.