Results 1 to 15 of 15

Thread: can you run a alpine type R sub off a non class D amp????

  1. #1
    Boonz's Avatar
    Boonz is online now the holden mechanic
    Ride
    green 355 VG ute , silver vx s pac L67

    Join Date
    Jul 2005
    Location
    berri, south australia
    Posts
    3,996

    Default can you run a alpine type R sub off a non class D amp????

    my mates cooked his fusion encounter amp that was running his type R 12inch.
    ive heard that the amp needs to be a digital class to be able to run it sufficiently?? is this true?
    any helps appreciated.

    cheers

  2. #2
    Ride
    VL executive

    Join Date
    Oct 2006
    Posts
    73

    Default

    subs don't need to be running off a class d amp

    class d just means the circuitry inside the amp is different. the different circuitry makes them more efficient, so, in high power situations (powering subs) class d make much more power with out drawing as much power from your power supply.

    killing an amp is very hard to do unless you have wired something incorrectly. if the voice coils of the sub were wired in parallel then that may have cooked the amp, that depends on what channel's they were running on (bridged or not) and what resistance the coils were.

  3. #3
    Boonz's Avatar
    Boonz is online now the holden mechanic
    Ride
    green 355 VG ute , silver vx s pac L67

    Join Date
    Jul 2005
    Location
    berri, south australia
    Posts
    3,996

    Default

    i think the wiring could of done it then. i think he was running both voice coils off one channel bridged off the amp. running at 4 ohms i wouldnt of thought it would be a problem running it like that???

  4. #4
    Ride
    VL executive

    Join Date
    Oct 2006
    Posts
    73

    Default

    uh can you repeat that

    firstly, is it the dual 2ohm type R or the dual 4 ohm type R

    What model amp is it?

    you can't bridge one channel, it sounds like the coils were running parallel off one channel

  5. #5
    Boonz's Avatar
    Boonz is online now the holden mechanic
    Ride
    green 355 VG ute , silver vx s pac L67

    Join Date
    Jul 2005
    Location
    berri, south australia
    Posts
    3,996

  6. #6
    Ride
    VL executive

    Join Date
    Oct 2006
    Posts
    73

    Default

    Well this is what it sounds like to me,

    most 4 channel amps are stable at 2ohm per channel but will only handle 4ohm when bridged. it sounds like the coils were wired parallel, effectively only having a resistance of 2ohm

    so the sub wired at 2ohm + bridging the amp for a 2 ohm load = fudged amp


    it it would have been able to play quite well but when it was played it for long periods or at extremely levels, the amp would have gotten super hot and died.

  7. #7
    Boonz's Avatar
    Boonz is online now the holden mechanic
    Ride
    green 355 VG ute , silver vx s pac L67

    Join Date
    Jul 2005
    Location
    berri, south australia
    Posts
    3,996

    Default

    it went hard as for about 3 weeks, then died in the hot weather the other day cheers for the explanation ill tell him to wire it up on seperate channels next time or read the instruction manual hehe....

  8. #8
    Ride
    VL executive

    Join Date
    Oct 2006
    Posts
    73

  9. #9
    Boonz's Avatar
    Boonz is online now the holden mechanic
    Ride
    green 355 VG ute , silver vx s pac L67

    Join Date
    Jul 2005
    Location
    berri, south australia
    Posts
    3,996

  10. #10
    Ride
    VL executive

    Join Date
    Oct 2006
    Posts
    73

    Default

    Quote Originally Posted by Car Audio Factory Outlet View Post
    This is why cheap amps dont work as they are not stable at 1 ohms etc plus they are worked to there MAX, causing "CLIPPING" and/ or BURN OUT!!!
    who are you?

    fusion make quite solid amps and wiring dual 4 ohm coils in parallel only creat a 2 ohm circuit not 1 ohm.

  11. #11
    Ride
    VK BROCK Group "A"

    Join Date
    Dec 2006
    Location
    KENMORE QUEENSLAND
    Posts
    450

    Default

    Quote Originally Posted by Sir-Psycho-Sexy View Post
    who are you?

    fusion make quite solid amps and wiring dual 4 ohm coils in parallel only creat a 2 ohm circuit not 1 ohm.
    Sir Psycho... agreed with your comment of the previous posts and was not agruing that.

    Did not fully read the post... my apologise..... yes parallel is only 2homs.

    Though again if the amp is underpowered that is where you will run into trouble, with it overheating as it is working it guts out. ALPINE do the same thing.
    Subscribe Here for our monthly Specials


    ALPINE PIONEER Rockford Fosgate Scosche EFX JVC SONY INFINITY

  12. #12
    Ride
    VL executive

    Join Date
    Oct 2006
    Posts
    73

    Default

    Quote Originally Posted by Car Audio Factory Outlet View Post
    Sir Psycho... agreed with your comment of the previous posts and was not agruing that.

    Did not fully read the post... my apologise..... yes parallel is only 2homs.

    Though again if the amp is underpowered that is where you will run into trouble, with it overheating as it is working it guts out. ALPINE do the same thing.
    You adressed me as sir

    your comment about small amps clipping is true yet maybe not relevant , no need for apoligies

    my appologies for being aggresive
    Last edited by Sir-Psycho-Sexy; 10-12-2006 at 06:13 PM.

  13. #13
    Ride
    VK BROCK Group "A"

    Join Date
    Dec 2006
    Location
    KENMORE QUEENSLAND
    Posts
    450

    Default

    Quote Originally Posted by Sir-Psycho-Sexy View Post
    You adressed me as sir

    your comment about small amps clipping is true yet maybe not relevant , no need for apoligies

    my appologies for being aggresive
    SIR!!!! this may cure the HEAD SWELL

    Dont Like BOOTS!!
    Subscribe Here for our monthly Specials


    ALPINE PIONEER Rockford Fosgate Scosche EFX JVC SONY INFINITY

  14. #14
    Ride
    vn executive

    Join Date
    Sep 2005
    Posts
    64

    Default

    removed comment
    Last edited by ultimate_vn; 15-12-2006 at 12:49 PM. Reason: i was wrong

  15. #15
    albert5268's Avatar
    albert5268 is offline Texas Hacksaw Massacre
    Ride
    VYII LS1 6 spd

    Join Date
    Oct 2004
    Location
    SA
    Posts
    78

    Default

    If I had that amp/sub combo I would have bridged the first two channels on the amp and the second pair of channels then connected each seperately to each voice coil (4ohms each coil) so the amp doesn't run under 4ohms. Both coils driving with the same signal running at 4 ohms won't create any problems. But the best bet is a Class D amp if you arent running any mids or tweeters off the amp.

Similar Threads

  1. 12" Type S alpine sub
    By AndyVKSSA in forum Parts And Other Items For Sale
    Replies: 6
    Last Post: 06-01-2007, 09:18 AM
  2. FS:[QLD] Alpine V12 amp, Type S 12" & Box
    By knowledge_is_power in forum Parts And Other Items For Sale
    Replies: 1
    Last Post: 08-12-2006, 12:34 PM
  3. F/S: Alpine Type S 6x9's - Adelaide
    By pro_gmh in forum Parts And Other Items For Sale
    Replies: 8
    Last Post: 21-03-2006, 11:56 PM
  4. Alpine type R 12" sub
    By 5spdVN in forum Parts And Other Items For Sale
    Replies: 5
    Last Post: 09-12-2005, 06:46 AM
  5. What amp to use with 2 alpine type r 15"'s?
    By Stubby in forum Car Audio
    Replies: 17
    Last Post: 18-06-2005, 01:23 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71