20 Most Recent Crunch Gangsta BMF2250 Car Audio Amplifier Questions & Answers

disconnect all the rca cable and speaker wires if the protection light comes on again; if this dont work unplug the cable and connect speaker wires and see what happen;if this dont work check your speaker wires in the box.

This could be a bad speaker or shorted speaker connections. Disconnect the speakers to see if it goes away.

I would guess the two thick reds with the semi-transparent insulation are part of the add-on wiring but careful as at least one is likely to be a supply cable. The two pairs of transparent cables don't look like OE wiring either.

re-check the speaker connections are correct and use a matching ohm test speaker on the other connections for a sound check. Sounds like hi frequency output into the sub amp. Sub-woofers are a mono signal!!

http://www.maxxsonics.net/manuals/crunch/pdfs/CrunchP1AmplifierManual.pdf

Blown outputs or power supply will cause this. Need a tech to look at it.

Check its wiring. There is many things to consider when wire it with; otherwise audio will be distorted at high level volume. It should be done according to wiring diagram. Wiring diagram to many sets are illustrated by the site give below. Check it. http://electronicshelponline.blogspot.com/

The amp is a discontinued model, but I do think I found the specs on it. It will produce : 350 Watts X2 @ 4 ohms 700 Watts X2 @ 2 ohms 1,400 Watts X1 @ Bridged at 4 ohms It is designed to be ran inline between your stereo and a set of, or a single, sub woofer. This could be a significant amount of work for a beginner in car audio, but it can be done. I would do a little research and decide if you want to use this amp. Join in on forums like http://www.caraudio.com/forums/forum.php, and http://mobileaudioforum.com/forum/forum.php to learn what can be done, and how to do it. good luck.

There should be a group of screw terminals. They should say pos or (+), remote, and ground, GND, or (-). This is the power terminal. The power from the battery goes to the (+), the remote turn one (thin wire) goes to the one labeled remote (usually inbetween the ground and power wires), and the ground to the (-). RCA jacks should be labeled input and output. Plug the appropriate colors in the input ones. The speaker terminals are labeled left and right + and -. If it is a 4 channel amp, it will also have front and rear. Depending how you wired your speakers is how they will go to the amp. Follow the speaker wires to the appropriate prongs positive or negative. Hope this helps.

Please be a little more specific on what you can't hook up.

There a few different issues that could be troubling you.

1. The Amplifier's outputs are no longer working
- To test this, connect the negative probe of a digital multimeter (DMM) to the negative (-) terminal of the amps speaker output. Connect the positive probe of the DMM to the (+) terminal of the amps speaker output. The output terminals you are referencing should be the output to the same speaker. Set the DMM to AC Voltage/lowest setting. If you read AC voltage than the outputs are ok. If you show no reading then the outputs are bad. Stop here and get the amp repaired or use as a paperweight.

2. Check the RCA connections behind the radio. They may have come undone. If so, re-connect and dance for joy as you once again enjoy music in your car.

3. Confirm that your RCA connections to your amp are plugged into the INPUT and not OUTPUT or THROUGHPUT. If in the output or throughput then move to the input. refer to the last sentence in #2 above.

4. Your RCA connections/or RCA cables are bad. Use the above mentioned DMM to check for continuity in the RCA's to ensuyre they are in working condition. You can also use the DMM set to ACC voltage like in #1 above to check to see if voltage (speaker signal) is being sent to your amp.

5. Make sure the amplifier's gain setting is not turned all the way down. If so, adjust accordingly.

If none of these solve your issue then most likely your amp is beyond the do-it-yourself repairs.

flip wires around on one of the speakers

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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