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Boss 4-Ch amp (BA-4500) wont come out of protection mode even when It is just connected to the power and nothing else. Please help me out.

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2 Answers

PYLE PT2001X 3300 Watt Professional DJ Power.just had question about running this amp in bridged mode 4 ohms, here's some amp info 3300 watts total power bridged in 1 ch only.1650 each ch in stereo mode...


Hi,

In bridge mode the minimum load will be 8 Ohm.
If you are using 4 Ohm speakers, it will mean you will give each side of the amplifier a 2 Ohm load.
Thats to much for this model.

Kind regards,
Gerard

May 13, 2010 | Pyle PT-2000 Amplifier

1 Answer

My boss amp is on protection mode and it wont work its a 3500 watt chaos idk what is wrong with it


Likely one of the power amps has failed component(s) and does not achieve electrical balance which then goes to protect mode to prevent damaging your speakers.

You will need to have it serviced.

Dec 25, 2009 | BOSS AUDIO SYSTEMS Music

2 Answers

My Sony XMGTR2022 goes into protect mode at


I discovered that there is a compatiblilty problem between the Bose receiver and the Sony amplifier. If I disconnect the receiver from the amp then the amp starts up normally. Apparently the receiver sends out a dc offset or a "thump" that the amplifier doesn't like and goes into protection mode. I solved the problem by putting a 1 second delay circuit between the receiver startup and the amplifier startup. A simple RC delay on the remote input to the amplifier solved the problem.

Sep 03, 2009 | Sony Xplod 1200W Class AB Bridgeable 2-Ch....

1 Answer

SHORT ON POWER SUPPLY


If it only goes into protect mode after the remote voltage is applied, the amp probably has shorted output transistors.

Nov 06, 2008 | Soundstream CAR AMPLIFIER, 1 CH, 1000 WTS...

1 Answer

Wiring up amp/installing amp


Disconnect all the wires and make sure that their all connected to the right terminals. If not positively sure trace all wires back to source. If you ground and power is swapped it will automatically go over to protection mode.

Apr 04, 2008 | Car Audio & Video

1 Answer

Zone 2


if you have a main speaker system working properly, takea known good amp to ch2. wire the main pre amp out to amp 2 input.. turn both units on(no spkrs connected), fire it up. if the amp does not go into protect mode, turn ALL power off to the system.,connect one Spkr channel on A2, AND TURN THE VOLUME DOWN FIRS!!!!. pOWER UP THE SYSTEM AND SEE WHAT YOU GET.BE GENTLE WITH VOLUME SETTINGD! If ch 1 works, repeat procedure with ch 2 pre amp out.

Nov 11, 2007 | Onkyo TX-NR801 Receiver

1 Answer

Protection mode after about 3 seconds


The protection is most likely being triggered by an internal fault. Typically the power amp section. The receiver will need professional service.

Sep 18, 2007 | Denon AVR-681 Receiver

3 Answers

Red LED "Protection Light is on" What is the problem


The red light means the amp is in protection mode. A few things can cause protection mode..... First disconnect the subs completely from the amp, and turn it on, if it powers up you have blown subs. Also try checking the main power wire at the battery...sometimes the current your meter is seeing is backfeeding from the remote wire, so your main power line could be blown at the fuse under the hood. hope this helps

Jul 17, 2007 | Crunch BlackMaxx BMX2250 2 Ch 1000W Amp...

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