20 Most Recent Quantum Audio QCA4000D Car Amp Questions & Answers

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Open it up 1st see if the fan is in working condition if not replace it with a computer fan if not take the fan off and replace the thermopast with artic sliver u can buy it at radio shack for little over 12$ make sure u dont get the thermo past all over and wipe the old thermopast off before applieing the new stuff wait 24hrs for it to dry and harden then it will stop with over heating if thats ur problem u can also use it on your mosfets the pices on the side if i am wrong then correct me but good luck with that :-) hope it helps someone

sounds to me like its blown big time unlike the old amps these new types use inter set ic and nanno tech so they dont really smell when they go

I have a bass knob that will work for these amps. Contact me.

use a larger screw. rethread the hole and use the proper screw for it.

it is possible to repair but it is more expensive

The radio code is a security feature that's meant to deter theft, and it's unique to each vehicle. If you've lost your code, you'll need to contact a Nissan dealership or service center and provide proof of ownership. They should be able to help you retrieve the code. Please do not attempt to use codes from the internet as incorrect attempts may lock your radio.

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I have the same radio now with no Bluetooth am trying to get Bluetooth on it too without having to buy another radio. Please help.

First thing to do is check to make sure that the batteries are properly charged.

Second, make sure that you have a clear line-of-site to the IR transmitter. Infrared (IR) works the same way that your TVs remote control works - if the signal is blocked, then you will not hear any sound.

Third, make sure that you are in the rear seat of the vehicle when listening to the sound. The IR transmitter only transmits to the rear seat, so you will not hear any sound if you are sitting in the front seats. This is a common problem that i see.

Lastly, make sure that the heapdhones you purchased are compatible with your 2006 2007 2008 2009 or 2010 Toyota Sienna. Remember that some older models require RF headphones, not IR headphones. I checked http://www.audiovideo2go.com for compatibility before I purchased my headphones. They have a useful listing of all the headphones and models of vehicles they are compatible with.

'make model (what is is)' as first 3 words in all questions. https://www.google.com/search?q=demo+mode+the+code+for+4.91 ..

Unfortunately, no one knows or is telling. Companies rarely state power in RMS because Peak Power is a much more impressive. 1000 watt amp, 200 watts RMS x 2 channels at 8 ohms. Look for a sticker on the unit. https://www.google.com/search?q=Xplore+Amp+5553 ..