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Thread: 2 channel - 4 channel, watts?

  1. #1
    Low Bitrate Alex121's Avatar
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    2 channel - 4 channel, watts?

    Hey all, im pretty new to all this, but i want my system to sound kick ***!
    Now, i want to know the difference between 2 channel and 4 channel amps?
    and when looking for speakers or subwoofers do i need to look that theu suit 2 or 4 channel amps? Sorry if this is a odd question, im just confused!

    Another... The watts on an amp, what do they mean? i thought they meant the more watts the more power you can pump out, is that right? what are the advantages of more watts? and same question as top, do i need to look for anything to do with watts when purchasing speakers and a subwoofer to go along with my amp.

    thanks.

  2. #2
    Nic
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    watts is a unit of power, 2 channel means you have 2 channels, ie 2 rca ins and 2 speaker outs (for left/right) 4 channel obviously means 4 inputs and 4 outputs, its possible to run 2 speakers off one channel, its also possible to run 2 channels off 1 input. for subwoofers you can use a mono amp (one channel) or bridge (on a bridgable amp) 2 channels together.

    you obviously need to do a lot of research on this to get you started learn these things before you start installing a car stereo

    what watts means
    what channels are
    (these 2 should be covered now)
    what speaker impedences mean
    what bridging amps is about
    also look into class D sub amps if you really want a kickass system



    edit: and its very important you understand the differance between Peak and RMS watts
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  3. #3
    Low Bitrate Alex121's Avatar
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    So basiclly 2 channel means i can have a maximum of 4 speakers connected to that amp, and 4 channel means 8 speakers?

    What i didnt understand about your post:

    what are "rca ins"?

    thanks

  4. #4
    Nic
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    well actually 2 channel means the amp can amplify 2 different signals, 4 channel means you can amplify 4 different signals, the amount of speakers you can connect to has to do with the impedence it can cope with, if you connect 2 4 ohm speakers in parallel you are effectivly running at 2 ohms so this combination is alrite on a 2 ohm stable amp (or a 1 ohm stable amp) but not a 4 ohm stable amp, if you dont want to worry about this too much use 1 channel per speaker and you should be sweet

    rca is the input plug to the amp, it is for the line level that comes out of your headunit (or carputer)
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    FreeDrive Creator CdRsKuLL's Avatar
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    If you go for a 5 channel amp, you should be able from a single left and right output (sound out of motherboard) going into the amp, and the amp split it into

    front left & right
    rear left & right
    Sub

    Most amps have a little pot you can turn also that would enable you to set the correct balance between front and rear speakers... and also how much sub is on

  6. #6
    Low Bitrate Alex121's Avatar
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    Ah great thanks CdRskuLL, i will spend some time looking up this stuff, but mostly what im interested in is how i am going to setup my car audio with my carputer and have the best sound.

    What would be great is if there were some diagrams, or someone elses setup to let me get some kind of thought of how im going to do mine.

    thanks

  7. #7
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    yeah - I say you need to spend a LOT of time looking stuff up based on teh types of questions you are asking....

    this isn't exactly something you just randomly pick out for your set-up...you need to match your amps and speakers and your air space, etc....

    have you read the stickeys at the top of the car stereo and newbe forums?
    Jan Bennett
    FS: VW MKIV Bezel for 8" Lilliput - 95% Finished

    Please post on the forums! Chances are, someone else has or will have the same questions as you!

  8. #8
    FreeDrive Creator CdRsKuLL's Avatar
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    Yeah defo agree with Red_GTi, its a massive subject.. and really only limited to your pocket! I would prob start on looking at whats going to feed the amp first, are you going to use the soundcard on the motherboard, or opt for a audigy or something.. I myself am just using the soundcard off my M1000 and am very happy with the quality. You could always start with the onboard sound card and if your not happy move up. Then you are best working backwards then.. Choose the speakers next, making sure there the right size for where there going, and a nice balance... the guys at the stereo shop are always keen to help here. Might as well use em as thats what they do. Then once you know what your input is going to be and you have your output (speakers) then it should make it choosing a amp a bit easier.

  9. #9
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    CdRsKuLL. Quick question.. (I also have an M1000)

    Out the back of your M1000 did you use a 1.5mm -> RCA adapter for the Audio out?

    Second - did you hook this up to an amp?

    My problem is.. I've got an amp but it only feeds subs (it's going in my GF's car, not mine) and i'm wondering what I need to be looking for in an amp to supply ALL my speakers w/ sound.. because with a 1.5mm(headphone) -> RCA out ALL of my sound will be going through an amplifier.

    I need something (amp) to feed all of my speakers, not just a sub...
    I'm not using a head unit - just a computer.. Wiring the ***** up to an existing CD player kind of defeats the main purpose of installing a carputer.

    -Kedaeus

  10. #10
    Low Bitrate Alex121's Avatar
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    bump
    someone mentioned getting a 5 chennel amp to power everything...
    well could someone briefly look over this and tell me what you think...

    http://cgi.ebay.com.au/ws/eBayISAPI....&rd=1&tc=photo

    thanks

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