2 amps on a 1 pre out head unit?

eatsleepplayscc
eatsleepplayscc Posts: 27
edited January 2006 in Car Audio & Electronics
I just found out that I have another obstacle in my way of completing my system... Is there anyway possible to have an amp with subwoofers and an amp with speakers both hooked up to the headunit if the headunit only has 1 pair of preouts?
Post edited by eatsleepplayscc on
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  • skydeaner
    skydeaner Posts: 187
    edited January 2006
    Sure get some splitters from radioshack and you'll be all set, I think it will then only give half the voltage to each amp though, so remember that when setting gains.
    Fiberglass reminds me of peanut brittle, only fiberglass tastes better!
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  • MacLeod
    MacLeod Posts: 14,358
    edited January 2006
    Y adapters.

    You can pick some up at any electronics store.

    h119iHPY2F.jpeg
    polkaudio sound quality competitor since 2005
    MECA SQ Rookie of the Year 06 ~ MECA State Champ 06,07,08,11 ~ MECA World Finals 2nd place 06,07,08,09
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    polkaudio SR6500 --- polkaudio MM1040 x2 -- Pioneer P99 -- Rockford Fosgate P1000X5D
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  • 1996blackmax
    1996blackmax Posts: 2,436
    edited January 2006
    If the amplifiers have pass throughs you can also use those to pass the signal to the other amp.
    Alpine: CDA-7949
    Alpine: PXA-H600
    Alpine: CHA-S624, KCA-420i, KCA-410C
    Rainbow: CS 265 Profi Phase Plug / SL 165
    ARC Audio: 4150-XXK / 1500v1-XXK
    JL Audio: 10W6v2 (x2)
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  • skydeaner
    skydeaner Posts: 187
    edited January 2006
    Wow that's a nice one macleod. What do those run like 20 bucks? hehe
    Fiberglass reminds me of peanut brittle, only fiberglass tastes better!
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  • cam5860
    cam5860 Posts: 632
    edited January 2006
    The only thing about the y cable is it's going to kill your signal. Lets just assume you have a 2 volt signal coming from headunit with the y cable. Thats going to split the signal only giving you 1 volt per amp.
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  • audiobliss
    audiobliss Posts: 12,518
    edited January 2006
    Hence the pass-through option on the amp would be much more desirable, no?
    George Grand wrote: »
    Jstas wrote: »
    Simple question. If you had a cool million bucks, what would you do with it?
    Wonder WTF happened to the rest of my money.
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  • exalted512
    exalted512 Posts: 10,735
    edited January 2006
    get the y-splitters and a line driver, problem solved
    -Cody
    Music is like candy, you have to get rid of the rappers to enjoy it
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  • MacLeod
    MacLeod Posts: 14,358
    edited January 2006
    Or just upgrade to a better head unit. That would be the best option, although it may not be the most cost effective.
    polkaudio sound quality competitor since 2005
    MECA SQ Rookie of the Year 06 ~ MECA State Champ 06,07,08,11 ~ MECA World Finals 2nd place 06,07,08,09
    08 Car Audio Nationals 1st ~ 07 N Georgia Nationals 1st ~ 06 Carl Casper Nationals 1st ~ USACi 05 Southeast AutumnFest 1st

    polkaudio SR6500 --- polkaudio MM1040 x2 -- Pioneer P99 -- Rockford Fosgate P1000X5D
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  • audiobliss
    audiobliss Posts: 12,518
    edited January 2006
    MacLeod wrote:
    Or just upgrade to a better head unit. That would be the best option, although it may not be the most cost effective.

    That was my first thought, as well. And, even if it isn't the most cost-effective solution now, it will probably end up being, as you won't have a y-adapter and power-line driver thingamabob-dohicky-whatchamacallit-device-tool-gadget (I'm good with names :D) laying around unused when you do upgrade your HU. And you will, if you ever get into car audio.
    George Grand wrote: »
    Jstas wrote: »
    Simple question. If you had a cool million bucks, what would you do with it?
    Wonder WTF happened to the rest of my money.
    In Use
    PS3, Yamaha CDR-HD1300, Plex, Amazon Fire TV Gen 2
    Pioneer Elite VSX-52, Parasound HCA-1000A
    Klipsch RF-82ii, RC-62ii, RS-42ii, RW-10d
    Epson 8700UB
    In Storage
    [Home Audio]
    Rotel RCD-02, Yamaha KX-W900U, Sony ST-S500ES, Denon DP-7F
    Pro-Ject Phono Box MKII, Parasound P/HP-850, ASL Wave 20 monoblocks
    Klipsch RF-35, RB-51ii
    [Car Audio]
    Pioneer Premier DEH-P860MP, Memphis 16-MCA3004, Boston Acoustic RC520
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  • nadams
    nadams Posts: 5,877
    edited January 2006
    Most amps have a pass-through for a second amp... don't they?
    Ludicrous gibs!
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  • eatsleepplayscc
    eatsleepplayscc Posts: 27
    edited January 2006
    wow it's been so long since i've checked the forums.. so if my subwoofers are already underpowered slightly, would using a y splitter make it worse and lose even more power?
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  • 1996blackmax
    1996blackmax Posts: 2,436
    edited January 2006
    If you set your gains correctly it should not be an issue.
    Alpine: CDA-7949
    Alpine: PXA-H600
    Alpine: CHA-S624, KCA-420i, KCA-410C
    Rainbow: CS 265 Profi Phase Plug / SL 165
    ARC Audio: 4150-XXK / 1500v1-XXK
    JL Audio: 10W6v2 (x2)
    KnuKonceptz
    Second Skin
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  • unrealii
    unrealii Posts: 268
    edited January 2006
    Some amp passthroughs are just like splitters to watch out for that.
    LSIm system on order =D

    Currently listening to innovation...

    Prior car systems:
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    Toyota MR2 - Eclipse CD5030, Eclipse HDR109 HD Receiver, Blaupunkt THA 555, Polk SR6500
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