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Thread: CarPC directly into Monsoon Amp, do I really need the Head Unit?

  1. #1
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    Question CarPC directly into Monsoon Amp, do I really need the Head Unit?

    For space reasons I'm removing the stock monsoon head unit on my '01 Jetta and replacing it with a 7" touch panel. I've constructed a plexiglas case to fit into the CD changer slot in the back and I'm hoping to use a RCA to monsoon harness on the CD changer input in the same slot.
    Like I said before the HU will be gone leaving volume control to Windows I hope. Question is will this work? Can windows just pass a signal via RCA/monsoon to the amp then to the speakers?

  2. #2
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    You bet.. similar to mine, and it sounds 10X better. You might need a line driver however, cause you are going to the CD changer first. I had mine running to the amp first. (I don't have a CD changer)

  3. #3
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    Does your Monsoon amp have RCA inputs? Mine doesnít, it just has high level (speaker level) inputs. I've read on the Volkswagen forums that the Monsoon amp isn't like a traditional amp. The head unit does most of the amplification and the amp functions more as a cross cover to drive the separate tweeters and woofers in the all the doors. Iím not totally sure, but I am going HU less too. I just have a smaller amp that leads into the Monsoon amp.

  4. #4
    FLAC ppgt94's Avatar
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    I have a '02 Jetta. I removed the moonsoon black "box". I then got the pin-out for the connector that plugged into the box and soldered my wires onto it to go to a amp.

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    Quote Originally Posted by Zip-Lock
    Does your Monsoon amp have RCA inputs? Mine doesnít, it just has high level (speaker level) inputs. I've read on the Volkswagen forums that the Monsoon amp isn't like a traditional amp. The head unit does most of the amplification and the amp functions more as a cross cover to drive the separate tweeters and woofers in the all the doors. Iím not totally sure, but I am going HU less too. I just have a smaller amp that leads into the Monsoon amp.
    So how exactly do I get purely software control of volume, I want no dials switches or sliders.

  6. #6
    FLAC ppgt94's Avatar
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    Quote Originally Posted by ericthebikeman
    So how exactly do I get purely software control of volume, I want no dials switches or sliders.
    Run the audio output of your comp's sound card into a amp.

  7. #7
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    Quote Originally Posted by ppgt94
    Run the audio output of your comp's sound card into a amp.
    So computer > amp > monsoon "amp" or
    computer > monsoon amp

  8. #8
    FLAC ppgt94's Avatar
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    Quote Originally Posted by ericthebikeman
    So computer > amp > monsoon "amp" or
    computer > monsoon amp

    I removed the monsoon "amp". Then I soldered speaker wires to the speaker leads. So it goes Computer > Amp > Speakers. I'll take a picture tomorrow.

  9. #9
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    I also removed the Monsoon "Amp" and put in a 4.1 Alpine.

    The front and back speakers have different power requirements (8 Vs 4 Ohms). I dealt with this issue by reducing the level to the front speakers. Also, you need crossovers for the tweeters. I used some spare Memphis crossovers.

    This set up sounds very, very good. To the point that I had to start using lossless compression for my music.

    cheers,

  10. #10
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    The Monsoon amp in that vehicle is (I believe - about 89% sure) a current sensing amp. I'm not guaranteeing anything but you could definitely try running your lineouts of a soundcard right into the amp and see what happens. If you get a wiring harness from a local car stereo shop it would make your life much easier. You could do 1/8" out to RCA from the sound card but cut the ends of the RCA's off. Then just hardwire right into the speaker wires where the radio was. I can't say for sure this will work but it definitely could. My only concern is I don't know if there will enough output on the sound card to be worth it. Best luck!

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