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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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..

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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.

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you could have a bad remote wire running to the amp or a bad remote circuit in your head unit, try connecting a small wire to the remote and jumper it to the power wire on the amp if this turns on the bass simply wire in a toggle switch and turn it off when you turn the car off so you dont drain the battery

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1 Answer

Amplifier turns on but not the subwoofer?


Hello thedj3214,

You can find the color codes for a 1999 Buick Regal here. There is no dedicated amp remote wire. Neither is there a power antenna wire.

You could use the 12V "switched lead (yellow) from the radio or any switched 12V lead directly from the vehicle fuse box. I'd wire it through a dash mounted toggle switch so as to be able to turn the amp on and off manually.

The Sony 2150GSX is a 2-channel amp with the speaker terminals on either side. You do not want to ground the subwoofer itself, only the ground terminal should be connected to bare metal on the vehicle chassis or body as close to the amp as possible. The ground wire does not need to be run to the negative battery terminal.

A ground on one of the speaker leads will probably cause the amp not to power up. A ground on a speaker wire usually activates the amps protection circuit, causing it to not operate until the fault is corrected.

Hope this helps.

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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.

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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.

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Hope this helps.

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4 Answers

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