Question about Jensen A600HLX Car Audio Amplifier

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USING 1 CHANNEL

The amp has 2, 3, and 4 channel modes, but I was wondering if it's possible to connect only 1 subwoofer. The head unit provides plenty of power for the other speakers so I don't wish to connect them. If I were to use this amp, would it be best to put it on 2 channel mode and bridge the 2 channels to the sub? My sub is a pioneer 12" 150W RMS and 800W max, does anyone know how much power would go to sub if I used the method I mentioned? I don't want to damage the sub. What is the RMS power? I hope someone can help me figure this out because I can't wait to install this!

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  • david smith Jul 02, 2007

    I realized that when i switch the amp to "2 channel mode," I can connect the sub to the rear channels (bridged for max power) and all of the 600 available watts should be there for the single sub to use. This amp has low and high pass filters for the front and rear channels also.

  • Anonymous Mar 29, 2014

    I want run one sub off a 4 channel amp

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I have this amp, and I bridge the rear channel to my sub, and it must be sending the full 600 watts to the one channel, because so far I have managed to blow 3 subwoofers rated for a max of 800. (One Kicker and two Acoustic Audio's) I have everything tuned as it should be, but I think my main problem here is just not using quality subwoofers, rated at about 600 RMS instead of 800 max.

Posted on Mar 03, 2008

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DON"T DO IT! It will kill you amp or st lesadt the ONE channel you choose to use. The only way you can use ONE Sub is to use a Dual Voice Coil and hook each channel to each voice coil.

Posted on Nov 08, 2007

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I can't find any documentation for your amp; it was made when Jensen was owned by Recoton, and they're no longer in business. With any 4-channel amp, you can't bridge all four channels into a single channel. What you can do, if you're connecting it to a single sub, is to bridge two of the channels into one channel and leave the other two channels unused. It doesn't usually matter which two channels you pick, but some 4-channel amps designate channels 3 and 4 (or rear channels) for the subwoofer. Whichever ones you use should have a "LPF" or "LP" crossover setting available.

Posted on Jul 01, 2007

  • Brian Neathery
    Brian Neathery Jul 02, 2007

    Not quite so; you can connect the sub to the bridged rear channels, true. But the amp's power rating includes the front channel outputs as well, and those won't be used. Therefore the entire 600 watts will NOT be sent to the sub. If all four channels are rated for the same power, then the sub will only get half of the amp's rated total power output.

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Hello k_rabbit89,

A 4 ohm DVC sub can be wired in series like you described for an 8 ohm load or the voice coils can be wired in parallel for a 2 ohm load.

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Assuming you really want to have a working surround system you will need a separate stereo amplifier for the 901's to accomodate the need for the Active EQ. There is no way to separate your receiver's front L&R channel preamplifiers from their amplifiers.

I run a Carver AV-406 (5-channel amp) for my 901's in Front, 2 Subwoofers and the Rear Surround channel, with the Active EQ between the receiver and the 901's amp channels. My receiver controls everything and just drives the Center and Surrounds. You would probably just get a nice 2-channel amplier for the 901's. However, the TX-SR606 doesn't provide power for a Subwoofer, should you decide to get one, so you would need another amplifier channel for that, too. Therefore, you might look around for a powerful 3- or 4-channel amplifier so you could drive the Sub, too.

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Not what you might want to hear but 901's have special requirements. I've had mine for 25 years and have no regrets.

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I run a Carver AV-406 (5-channel amp) for my 901's in Front, 2 Subwoofers and the Rear Surround channel, with the Active EQ between the receiver and the 901's amp channels. My receiver controls everything and just drives the Center and Surrounds. You would probably just get a nice 2-channel amplier for the 901's. However, the VSX 47TX doesn't provide power for a Subwoofer, should you decide to get one, so you would need another amplifier channel for that, too. Therefore, you might look around for a powerful 3- or 4-channel amplifier so you could drive the Sub, too.

Modest amps would work but at very loud volumes may go into clipping, which is bad for any speaker. I'm using only 100W for mine and it has plenty of steam for the 901's.

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I run a Carver AV-406 (5-channel amp) for my 901's in Front, 2 Subwoofers and the Rear Surround channel, with the Active EQ between the receiver and the 901's amp channels. My receiver controls everything and just drives the Center and Surrounds. You would probably just get a nice 2-channel amplier for the 901's. If your receiver requires a powered Subwoofer so you would need another amplifier channel for that, too. Therefore, you might look around for a powerful 3- or 4-channel amplifier so you could drive the Sub, too.

Modest amps would work but at very loud volumes may go into clipping, which is bad for any speaker. I'm using only 100W for mine and it has plenty of steam for the 901's.

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1 Answer

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This will depend on the amplifiers capabilities.

I will give 2 different scenarios.

#1 Stereo configuration

If the amplifier supports an RMS power output close to the RMS input power of the subwoofers then run the amplifier in stereo mode. For example 150 watts RMS X 4 channels driven at 20-20khz. (If you can provide a model # for the subs and the amp your looking at I can help you further with this decision.

Wiring for this is easy and simply involves matching the connectors for 2 of the channels (Front or Rear) to each of the subwoofers.

#2 Mono Bridged mode.

If the amplifier is lower power but mono bridgable you can bridge two Pairs of channels and power each of the subwoofers this way.

Generally speaking a 2 channel bridgable amplifier will be able to at least combine the wattage of each channel into a single monural channel and in many cases its actually higher.

So you would bridge the front 2 channels into a single bridged mode for one subwoofer. and then you could bridge the read 2 channels into another bridged mono channel for your other sub woofer.

For example if you had bridgable amplifier thats 50 watts RMS X 4 you coudl very likely (Generalization based on quality of amplifier) send 150 watts RMS to each subwoofer.

Again I would need to know what amp you're refering to to provide specific wiring instructions. Many Bridging amplifiers either have a single switch that will send them to bridged mode or you would use the positive + terminal from one channel and the negative - terminal from the other channel or a combination of both.

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1 Answer

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If the sub channel is shutting down, there is a problem with that channel. The unit will shutdown to prevent further damage. This unit will need to see a service bench to determine the defective part(s).
Dan

Mar 17, 2008 | Audio Players & Recorders

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