Hi! I have installes an amplifier (4 x 50WRMS) and I did as the following: Bridged 2 50:s = 100 WRMS driving a subwoofer(MDS 370WRMS MAX).. 2 x Singles 50WRMS supplying 2 coaxial loudspeakers(Sony -Explode-45WRMS) the problem is that I hear the engine noise when I play music..otherwise there is not any problems with the sound quality.. Anybody !! Greetings

Re: Jensen Amplifier..4 x 50WRMS at 4 Ohms

This sounds like you need a ceramic noise suppression filter/ferrule on the Power line to the amp. You should be able to get a suitable one from most car audio shops. Hope this helps, please post again if you have trouble getting one :)

Posted on Mar 28, 2007

What load is the amplifier designed to drive? It will only deliver maximum power into the optimum load. The loudspeakers are probably 4 Ohms, but the amplifier may well be able to drive 2 Ohms per channel. This means that you need to fit two more loudspeakers This is probably not possible. Alternatively, if the amplifier can be bridged AND can safely drive 2 Ohms bridged or 1 Ohm per channel, you should connect the two loudspeakers together (+ to + and - to -) and connect them to the amplifier output terminals indicated for bridge (often Left + and Right + but sometimes Left + and Right -). If the amplifier can't drive 2 Ohms bridged, do not connect the loudspeakers together, buy another amplifier and connect one loudspeaker to each, with both amps in bridge mode.

Remember that loudspeaker and amplifier power ratings are always massively inflated in the manufacturers' data, often by a factor of 4 and sometimes by 10 or more. You speakers may not be able to cope with a whole amplifier each, so proceed with caution.

Remember that loudspeaker and amplifier power ratings are always massively inflated in the manufacturers' data, often by a factor of 4 and sometimes by 10 or more. You speakers may not be able to cope with a whole amplifier each, so proceed with caution.

Jun 07, 2015 | Pyle 2 Channel 4000 Watt High Power MOSFET...

Specifically it's 50x2 rms at 4 ohms stereo, 75x2 rms at 2 ohms stereo, and 150x1 at 4 ohms bridged.

May 23, 2011 | Jensen LXA300 Car Audio Amplifier

You are correct, the amp will not support 2 ohms bridged. your best bet would probably be to have one voice coil on each channel. You could run them in parallel on one channel. but you will be getting the same power to each sub as if you put one on each channel. If you run them at 8 ohm bridged you will be getting less than 125 wrms per voice coil because of amp inefficiency at such a high resistance. It will sound cleaner also if you have one voice coil per channel.

Mar 09, 2011 | Rockford Fosgate Punch 500S Car Audio...

- 130 watts RMS x 2 at 4 ohms
- 180 watts RMS x 2 at 2 ohms
- 360 watts RMS in bridged mode

Here is a good review of it:

http://caraudiomag.com/articles/jensen-jxp-720-car-stereo-amplifier

Not a great amp for the money really.

Feb 06, 2011 | Jensen JXP720 Car Audio Amplifier

RMS Continuous Power (at 12.0V)

Per channel into 4 ohms...............40W, 0.08% THD

Per channel into 2 ohms ..............50W, 0.3% THD

Bridged into 4 ohms.....................100W, 0.3% THD

RMS Continuous Power (at 14.4V)

Per channel into 4 ohms...............60W, 0.08% THD

Per channel into 2 ohms...............80W, 0.3% THD

Bridged into 4 ohms.....................160W, 0.3% THD

Max. Power (at 14.4V)

Per channel into 4 Ohms..............120W

Bridged into 4 Ohms....................320W

This should help.

Per channel into 4 ohms...............40W, 0.08% THD

Per channel into 2 ohms ..............50W, 0.3% THD

Bridged into 4 ohms.....................100W, 0.3% THD

RMS Continuous Power (at 14.4V)

Per channel into 4 ohms...............60W, 0.08% THD

Per channel into 2 ohms...............80W, 0.3% THD

Bridged into 4 ohms.....................160W, 0.3% THD

Max. Power (at 14.4V)

Per channel into 4 Ohms..............120W

Bridged into 4 Ohms....................320W

This should help.

Apr 30, 2010 | Alpine MRV-F407 Car Audio Amplifier

The **XM**-**1002HX** is a two-channel amplifier with power ratings of 100 watts x 2 or 280 watts x 1 into 4 ohms and 140 watts x 2 into 2 ohms. **...**

Mar 21, 2009 | Sony XM-1002HX Car Audio Amplifier

take it to a stereo shop. there are variables you may not be aware of when hooking up speakers to an amplifier like ohms, very important!

Dec 08, 2008 | Jensen LXA400 Car Audio Amplifier

You are probably aware on how to use these output figures, but I'll write a quick explanation on the specifications for future readers anyways :)

The concpet CC-452 amplifier has the following power output specifications:

Calculated at 14.5 volts DC;

At 4 ohms per channel - 45 watts x 2 (RMS)

At 2 ohms per channel - 70 watts x 2 (RMS)

At 4 ohms bridged - 150 watts x 1 (RMS)

This means that your amplifier would provide 45 watts of power each for your front speakers, which are normally a 4 ohm load per side (45 watts for left, 45 watts for right), that's unless they are one of those exotic higher end brands (eg: Boston Z6s which are 3 ohms). Rarely, you will find speakers that are rated at 2 ohms per side, but in this instance the amplifier will provide 70 watts of power into each speaker. On your speaker specifications, you will find a value termed "nominal impedance" which will give you the ohm rating of the speakers being used..

On the other hand, if you "bridge" both channels into a single channel (using a diagram often marked on the speaker terminals of the amp), you could then provide 150 watts into a subwoofer (providing it was a 4 ohm woofer).

It's not recommended to use this amp bridged under 4 ohms..

Some subwoofers may be lower than 4 ohms, and you will not be able to use this amplifier for these types of speakers without risking amplifier failure. Also, some subwoofers may have 2 seperate voice coils, and you will have to use both channels of the amplifier seperately (not bridged) in order to correctly connect this type of speaker for use.

The concpet CC-452 amplifier has the following power output specifications:

Calculated at 14.5 volts DC;

At 4 ohms per channel - 45 watts x 2 (RMS)

At 2 ohms per channel - 70 watts x 2 (RMS)

At 4 ohms bridged - 150 watts x 1 (RMS)

This means that your amplifier would provide 45 watts of power each for your front speakers, which are normally a 4 ohm load per side (45 watts for left, 45 watts for right), that's unless they are one of those exotic higher end brands (eg: Boston Z6s which are 3 ohms). Rarely, you will find speakers that are rated at 2 ohms per side, but in this instance the amplifier will provide 70 watts of power into each speaker. On your speaker specifications, you will find a value termed "nominal impedance" which will give you the ohm rating of the speakers being used..

On the other hand, if you "bridge" both channels into a single channel (using a diagram often marked on the speaker terminals of the amp), you could then provide 150 watts into a subwoofer (providing it was a 4 ohm woofer).

It's not recommended to use this amp bridged under 4 ohms..

Some subwoofers may be lower than 4 ohms, and you will not be able to use this amplifier for these types of speakers without risking amplifier failure. Also, some subwoofers may have 2 seperate voice coils, and you will have to use both channels of the amplifier seperately (not bridged) in order to correctly connect this type of speaker for use.

Oct 28, 2008 | Concept CC-452 Car Audio Amplifier

i have this amp i bridged it to 2 ohms and its been about 3 months its stable havent blown any fuses and its a big difference in sound to. 2 ohms with this amp is definately the way to go. i used to pioneer 12's.

Jun 22, 2008 | Jensen LXA300 Car Audio Amplifier

400 watts delivered to 300 watt speakers the only way to do this would be to wire two subwoofers in series so that the power needed to drive them will be 600 watts to max, however this will increase your impedance on the speaker (8 ohms) load so what you can do to compensate is get an 8 ohm 600 watt resistor and put it in parallel with the speakers you will then have 4 ohms of impedance at a total capacity of 600 watts of power
In other words the amplifier won't blow these out now.

Oct 08, 2007 | Pioneer GM-X722 Car Audio Amplifier

Apr 17, 2010 | Jensen A600HLX Car Audio Amplifier

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