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Aous Karim Posted on Mar 28, 2007
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Jensen Amplifier..4 x 50WRMS at 4 Ohms

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

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  • Posted on Mar 28, 2007
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Joined: Feb 13, 2007
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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 :)

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Related Questions:

1helpful
1answer

How can I connect it to get the most power out of it?

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.
0helpful
1answer

I want to no the ohms of Jensen LXA300 2ch. 300w amp

Specifically it's 50x2 rms at 4 ohms stereo, 75x2 rms at 2 ohms stereo, and 150x1 at 4 ohms bridged.
0helpful
1answer

I want to hook up a crossfire bmf 12 to my 500s. It is a dual 4 ohm speaker which config will i get the most power out of the amp. Wired at 8ohm bridged or each voice coil on a channel. That amp wont run...

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.
0helpful
1answer

Want to know how many wattes there is?

  • 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.
1helpful
1answer

Can you bridge the vega 124 or just use 1 channel on a punch 400x4

Here are the important concerns:
The power rating of the speaker(400W) should be 25% HIGHER than the maximum output of the amplifier BRIDGED. (Amp bridged output 200W - OK!)
The amplifier will get twice as warm running the speaker when loud.
The impedance of the speaker can be no less than 4 ohms when the amplifier is bridged. (Yes, this speaker is 4 ohms - OK!)
Your punch amp is capable of running TWO Cerwin Vega 124s, bridged.
0helpful
2answers

What is the watts of this 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. ...
0helpful
1answer

Jensen LXA400 Fuse Size and RCA hook up for 2 channel mode?

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!
0helpful
1answer

I found this amp and I can't seem to figure out what the wattage is?

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.




0helpful
2answers

What if you wire a dual 2 ohms in series producing a 4 ohm load and bridged it? then each channel would now see a 2 ohm load, right? does a total of 4 ohm load in bridged mode also burn my amp?

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.
0helpful
1answer

Speakers

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.
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