Question about Blitz BZA2160 Car Audio Amplifier

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My amp automatically turns over to protect when powered

I have my amp running from the power to a toggle switch ok i have had this amp for about a week and it was working just fine now when it powers up the leds come on it goes to power then striaght to protect????

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Disconnect all of the speakers and see if it does the same thing. If it does come on, you will need to check all of your speaker wire as well as the speakers. If it still goes into protect, I'm afraid to say that there is a short in one or more of the output or driver stages of the amp. Unless you know how to trouble shoot solid state printed circuit boards down to the component level, you will need to have the amp look at by a pro. Good Luck

Posted on Feb 16, 2008

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Posted on Jan 02, 2017

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Generator will not stay running


The toggle switch automatically resets all faults when it is turned to the off position. I would turn the toggle switch off, turn off the breaker on the generator and then turn off all the loads in the house except a few lights. Turn the generator breaker back on, then turn the toggle switch back to automatic. If it starts and stays running, you were overloading the generator. Turn on other loads slowly and keep track of what is on so you don't overload it again. If it still does not stay on, you may have a problem with the panel. Let me know what happens.

Nov 20, 2013 | Briggs & Stratton 15,000 Watt Home Standby...

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My reciever went to protect mode after my speaker wires touched. I removed all cables and power for an hour but stays in protect mode. I also changed 2 15 amp fuses inside but nothing unless I take fuses...


Yes, you can do this easily.
Perform the following steps
(1)Plug your amp to AC outlet.
(2)Switch it on.
(3)observe time taken for switching off.
(4)immediate to shut down over current protect(5)3 seconds to shut down DC protect.
If over-current protect do the
following steps
(O)unplug the amp.
(1)download NR806 service manual.
(2)open the amp metal cover.
(3)measure 7 large white resistors resistance loacated next to power transistors mounted on a large heat sink with black probe touching the middle pin and red probe to first/left or third/right pin.
(4)If this 3 Pins large white colour 0.22ohm x 2 resistor is open with infinity ohms ,
(5)replace it and jot down this channel for example left surround faulty. Usually only 1 channel went faulty.
(6)the two large power transistors next to this white resistor 0.22 ohms x2 should also be replaced.
(7)plug the amp
(8)switch it on
(9)if ok, troubleshooting get done
(10)if not ok
(11)replace ALL the components of this power amp channel.
(12)pre-amp section no need to check.

Nov 23, 2017 | Onkyo TX-SR806 Receiver

1 Answer

I have an Dual brand 300 watt amplifier that I just bought and I hooked everything up right (battery---power, ground----sanded metal, bypassed remote with toggle switch remote-----+terminal on switch...


Is your toggle hooked to ground? Hook your toggle switch to the battery and then the other end of that toggle the remote input on the amp.

Aug 15, 2010 | Car Audio & Video

1 Answer

Amp pulses from power to protect


check it without the speakers if they go to protection,and if not check the speakers

May 27, 2010 | Power Acoustik PS4-800 Car Audio Amplifier

1 Answer

How do i turn the subwoofers on & of


There are 2 ways to do this, first would be to run the remote wire from the amp to the remote on the stereo, when the stereo is turned on it will in turn power the amp and subs up.

Second would be run a wire from the remote on the amp and another wire from the power on the amp to a toggle switch and mount it in a good location..

Feb 18, 2010 | Eclipse CD3422 CD Player

2 Answers

My kicker amp zx 300 want turn off when i turn my car off had the remote wiring check dont no what to do


Hello pruittdarryl,

Does the amp turn off when you remove the remote wire? If it does, then wire a toggle switch into the remote wire and just use it to turn the amp on and off. If the amp does not turn off with the remote wire removed, there is probably a short between the 12V+ and remote terminals. In that case, the amp is probably defective. If it is OK otherwise, you could still use it by putting a heavy duty toggle switch into the power wire itself.

Hope this helps.

Oct 10, 2009 | Kicker ZX300.1 Car Audio Amplifier

1 Answer

Power off issue


Hello octoberburni,

No it is not normal for the amp to stay on when you turn the ignition off. And yes, it will definitely drain your battery if this condition is not corrected.

Use a multimeter set to volts and check between the ground connection (right connector) and remote turn-on connection (center connector) on the amp itself. You should have approximately 12V when the ignition and your head unit is on. And 0V when they are off. If you measure voltage when the ignition and head unit are off, either the incorrect wire is connected to the remote terminal, or the defect is in your head unit. If you measure OK, that is voltage present when ignition and head unit are on, and no voltage when they are off, then the problem is most likely in the amp itself. If you find voltage on the remote wire all the time, check to see that it is coming from the correct output from the head unit. Most aftermarket head units use a blue or a blue/white wire for the remote amp turn-on lead. Many (most) stock OEM receivers do not have a remote amp turn-on lead. But they may have a power antenna lead which will serve the same purpose. In any case, just insure that the correct wire is connected to the amp. It should have voltage when the head unit is on and no voltage when the head unit is off.

In either case, if everything else is still working with the amp, you can simply wire in a manual toggle switch to turn the amp off or on whenever you desire. A SPST (single pole-single throw) toggle switch is what you need. If the problem is in the head unit wire, put the toggle switch inline with the remote wire and mount it somewhere handy on or near the dash. If the problem is not in the remote wire, you'll need to put the toggle inline with the main power wire, the one marked "12V" (left connector) on the amp. In this case, you need to make sure that you have a heavy duty toggle switch, one that will handle more amps than your primary fuse. You may need to look under the hood for the fuse to check it's value.

Hope this helps.

Apr 18, 2009 | Car Audio & Video

1 Answer

How do i hook up a B4.250.2 Amp to a home sterio?


Hello umbaftroml,

Here's a link to the owners manual: Scroll down to the B4.250.2 and right click "Download Manual".

http://www.lightningaudio.com/scripts/latech.cfg/php.exe/enduser/std_adp.php?p_sid=572kxbvj&p_lva=&p_faqid=154&p_created=1235512138&p_sp=cF9zcmNoPSZwX2dyaWRzb3J0PSZwX3Jvd19jbnQ9OTEmcF9wYWdlPTE*&p_li=

You'll need some source of 12V DC power which is not available on your home stereo. A 12V battery or DC power supply will work OK. You'll also need to wire in a toggle switch to "trigger" the amp to turn on. Just put the toggle switch inline with a diode for isolation between the power wire and the "remote" terminal on the amp. Flip the toggle on when you need to use the amp.

The speaker connections and source connections are all shown on page 6 of the manual and would in any case, be the same as if you were installing the amp in a vehicle. Be aware that most home stereo speakers are 8 ohms, whereas speakers and subs designed for vehicles are usually 4 ohm or sometimes even 2 ohm. This will not be a problem. you shoud be able to drive 8 ohm speakers, they just won't be as loud because the amp will not produce it's full power into an 8 ohm load. Plug your RCA's into your home stereo's preamp outputs, or if there are no preamp outputs, use the speaker level inputs on the lower edge of the amp.

Hope this helps.

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4 Answers

Amp turns off


Sounds like remote turn on wire is bad. If using aftermarket HU, find another location to power amp. Try the the power antenna wire on the HU to run the REM.

Jan 24, 2009 | Pyle PLAM1200 2-Channel Car Amp

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