Can I bridge a plmra400 amp - AMP Car Audio & Video

Per the manual for your amplifier the amp is not bridgeable. If you do not already have a copy of your manual you can download it at the following website:

http://www.pyleaudio.com/itemdetail.asp?model=PLMRA400

The file is in the pdf format. If you don't already have the Adobe Free Reader you can download it from this website:

http://get.adobe.com/reader/

Just click on the orange box that has the word DOWNLOAD in it. If you save the file to your Desktop all you have to do is double-click the icon that it creates and the reader will install itself. You can then double-click the file for your manual and it will automatically load the reader and display itself in the reader.

You cant bridge it to the MONO AMP . You can only bridge subs & speakers to 2 CH & 4 CH AMPS that are bridgeable. Because if it appears that there is 2 channels on a Mono amp its so its convenient for you to hook up 2 4ohm subs to it easily But both channels are actually connect internally together in parallel inside the amp unlike a 2 channel they are separate.

So just connect your mtx 9500 to a plus and a minus and doesnt matter which since all the + terminals of are connected together and - are connected together already.

Whats important is on the side of the sub/box it reads 2 ohms. The lower the ohms the more power the Mono amp will put out. Mono amps are designed to handle 2ohm loads.

If it reads 4ohms The MONO amp is the wrong amp to use cause the power will be weaker. So if you have a 1000 Watt Mono amp at 4ohms the sub will only get 500 WATTS Max while a 2 ohm will get the full 1000 Watts.

If it reads 4 ohms connect it to a 2CHANNEL AMP and BRIDGE IT (connect + of the sub to 1st channels positive of the amp then connect - of the sub to 2nd channels negative of the amp) . The power will be doubled when you bridge it on a 2 channel amp. NOW if it was a 2 ohm sub and you bridged it to the 2 channel amp it will fry the subs and ruin the amp. 2 CHANNELS CANT TAKE A 2OHM LOAD BRIDGED OK.

impedance mismatch cud be the culprit. make sure ur speakers are the right ohms for ur amp. most amps are designed to operate on a 4 ohms speaker load on bridge mode. some amps are never designed for bridge mode. so if u bridge these amps u will get less output. u have to be very careful when u make the connections. plus when u bridge two amps for 4 ohms load, the total impedance becomes 8 ohms. make sure ur speakers are 8 ohms. few ohms can make big difference on power amps.

I'm assuming you mean channels 2 and 4? If you tried new cables and you know they work then you might wanna check to see if there is a 2,3,or 4 channel switch on the amp or just a switch that reads bridged. If a switch on an amp is set to bridged or 2 channels, whatever type of switch there is, then it would make the amp only run 2 channels. If there is'nt a switch and you have a signal on the cable your using then you may have some shorted transistors. Make sure you definately have a signal first before thinking some transistors are shorted. Take the rca's from the 2 channels that work and put them into the inputs cause you know those channels are working. Let me know what you find, I would like to help you more if you still have problems after this. I also do amplifire repair cheap. I have my own business and most of my customers are from this site, so if you need it repaired then I can help you out on this as well. Just send me a private message. Good luck

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/mark_b53a7494531bf96d

Hello lizskates814,

You can use either the high level (speaker) or the low-level (RCA's) inputs to the amp, but not both. Choose whichever one sounds the best or is more convenient to install and leave the other disconnected.

Hope this helps.

hey" i got 2 behringer 2500 amps and i have 2 peavey speaker that are 4 ohms 2000 watts eachand want to mono the amp separte,and i want to run 1 amp to each speaker so can you help me?

I'm not sure if Lucent has a special bridging procedure, but on most if not all other amps, when you bridge you DON'T connect two terminals together. What you do is instead of using the plus and minus terminals on one channel to one speaker and the other +/- terminals to the other speaker, you will instead use the plus (+) terminal from one channel and the minus (-) terminal from the other channel to drive one speaker and the remaining + and - terminals remain unconnected. Be sure you use the + and - terminals that are marked for bridging. Please note, that when you bridge that your speaker load DOUBLES to EACH channel. In other words, what your amp saw as a 4 ohm speaker going to one channel alone, it now sees as a 2 ohm speaker on each channel when bridged. Be sure you know what you are doing before you bridge and fry your amp. In my experience, if after bridging your amp works fine for about a month and then fries then you bridged wrong and ended up with the wrong speaker load on each of the bridged channels. Be careful. Amps cost a lot to repair. Good luck.

Hi monmax,
I hope you are aware that in bridged mode your amp will become monaural (single channel, double power). If you still wish to bridge it:
Switch of power.
Set mode switch behind amp to "bridge" position.
Connect speaker positive to CH1+ve terminal of amp output and connect speaker negative to CH2 +ve terminal.
Be aware that now, in bridged mode your amps output power delivery is 1100 watts for a 4 ohm speaker and 900 watts for an 8 ohm speaker. Make sure your speaker can handle that.
Peace
Jango.

did you read your instruction manual. does it says "it could be bridged to other amp"?. you can't make a bridge to amplifier that is not bridgeable. bridging an amp is a way which it is made through transistor type ampilfier by bridging more transistor inside and more voltage is required for bridging.
I don't know if we could do to an IC type amplifier. ask an experts about bridging IC types how to bridge maybe they know how.
and if you had an successful bridging, you may have a problem through your speakers, they may hit hard but you will experience some errors through your speakers and easy to worn.

First of all, make sure your amp is bridgeable. There are a few ways to bridge subs. series: hook one wire from the negative on the left amp output (or whichever is labeled on amp for bridged)to left sub negative. left sub positive to right sub negative, then right sub positive to the amp positive output.(like a big loop through both speakers) parallel: both speakers get their own set of wires, both negatives go to the bridge negative terminal, and both positives go to the positive bridge terminal. Series-parallel: A combination of the two. say two speakers in series, and one hooked up alone, but all to the same amp outputs. Bridging your amp/speakers basically lowers the resistance of the circuit and makes more current flow, more power, louder, harder hit. In series, it also makes both speakers do exactly the same thing, instead of "stereo sound" or L/R differences. What you're probably looking to do is Bridge in parallel. That will drop the resistance of the circuit the lowest, allow the amp to put out the most amount of current to the speakers, and allow your bass to hit the hardest. If your amp only has one output, hook up the same way as above. Just see what resistance your amp is stable down to. If down to 1 ohm, no worries. if stable only to 2 or 4 ohms, you may want to bridge in series to be safe. That will cause the resistance to go up, and will not pull as much current through the amp. The whole time, just remember Bridgeing and higher current mean HEAT so watch your amp. I hope this helped.