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i just hooked up my DEH-P8mp but while listen to it my subwoofers

 
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  • Answered by:bluextc89
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Customer Question

i just hooked up my DEH-P8mp but while listen to it my subwoofers stopped playing. so many adjustments. The sub is turned on in the menu but no Bass. Is there more i need to do?

 

Optional Information:
Make: Pioneer
Model: DEH-P8MP

Already Tried:
Got hooked up and su woofers are turned on and were playing, but as i was adjusting sound they went out , and wont come back on. amp to subs are lite? Is there some else im not doing?

Submitted: 637 days and 9 hours ago.
Category: Car Electronics
Value: $11
Status: CLOSED
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Expert:  bluextc89 replied637 days and 4 hours ago.

Thanks for stopping by.

Can you please provide more information regarding your setup... ie brand/model# XXXXX subs and amp(s) and how they are wired?

Do you have a multimeter to check voltages?

Thanks!

Customer replied636 days and 21 hours ago.

No meter but have a capasator reading 12 volts. Its a 200 watt 2 channel amp bridged hooked to a box with two 10" memphis audio sub woofers. They are turned on at the remote but run for a short period then off 95% off the time.

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Expert:  bluextc89 replied636 days and 20 hours ago.

Really would be helpful if you have the model numbers for everything.

Are the Subwoofers dual or single voicecoil? What about their impedence? 4 Ohm? 8 Ohm?

When you lose power - is there 12VDC at the power and remote terminals of the amplifier?

Please reply with as much information about your components as you can.

Thanks!



Customer replied636 days and 19 hours ago.

no model numbers on spkrs. dual voice coil yes. 4 ohm i beleive, not sure if there was 12 volts at the remote terminales of the amp. If i knew that I probably wouldnt be contacting you. All connections are tight. im just asking if there is a settle through all the eq adj, highs, lows, etc that make the subs not work if you change a setting on the deck, cause even when the subs are off, the deck says they are on. but as i play are with the equalizer settings , and db levels, etc sometimes the subs come on for a song or so then shut back off.cant tell if its a setting. or the deck is bad, or the amp is bad. amps are rockford fosgates 200 watts 2 channels, punch 200.2

Accepted Answer

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Expert:  bluextc89 replied636 days and 19 hours ago.

Manual LINK

Since you have (2) dual voicecoil subs - I would caution you that the amplifier is not liking the impedence load (likely 1 ohm mono).

That amplifier is only rated for a 4 ohm load in bridged mode.

Check your wiring of the subs is correct to net you a 4 ohm load. Parallel wire the voicecoils on each sub - then wire them in series.

3 reasons the amplifier will shut down...

Ground detected in the AC output circuit (blown voicecoil)
Overheat
Impedence load

I suspect the amplifier is playing until it overheats due to the improper load being applied.

Let me know what you find.


Expert TypeSmall Business Owner
Category: Car Electronics
Pos. Feedback: 97.5 %
Accepts: 1745
Answered: 9/21/2011

Experience: MECP Certified, Car Audio Pro 17 Years. Shop owner 5 years.

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