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#1 |
diyAudio Member
Join Date: Jul 2010
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Heres what they are...
Amp ; Alpine pdx-1.600 600 watt rms by 2ohm or 4ohm Subs ; Two 10" Alpine Type R's 2ohm Dual Coils I have been trying to connect both of them in a parallel connection but when i do and I put them both in my box they go flat, once I take one speaker out a little bit they hit again. I look at the wiring diagram that came with the speakers but I don't think I am doing it right. Maybe its the box I'm putting them in, maybe i need another amp, maybe its the way I'm wiring. Right now I just have the one hooked up and it hits but not like a type r should, other people I know who have type s tens rattle windows!!! PLEASE HELP!!!!!!!!!! |
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#2 |
diyAudio Member
Join Date: Oct 2009
Location: Thurso, Quebec, Canada
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try making a 4 ohm with them hooked in serie.
AMP+=======+Sub-===+Sub-=====-AMP |
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#3 |
diyAudio Member
Join Date: Jul 2010
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The Speakers have four connections each, +-+- am i just connecting the outside +- and bridging them?
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#4 |
diyAudio Member
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Purely guessing here, but odd that one driver direct to the amp isn't working right?
Sounds like each driver has two windings, each of which is 2 ohms. Wire them in series, find the + of the first winding (either one is OK) and connect it to amp the other end of that winding (the -) to the + of the second winding and then the - of the second winding to the amp. I could have that wrong, but that's the concept. If that doesn't sound OK, that is odd. Then might as well do drivers in series (total of 8 ohms, again the first - wired to the second +) instead of in parallel (total of 1 ohm... not good).
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HiFi aspirations since 1957. Currently working on motional feedback again... the final frontier in audio (and working on a folded 18-foot Voigt pipe) |
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#5 |
diyAudio Member
Join Date: Jul 2010
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I was wiring it wrong, i finally fixed it!!!!!!!! and now they hit HARDDDD!!! Getting my twleve inch type rs sunday can't wait, thank you to all that replied!!! It was all helpful!!
This is how I wired it; Amp + to speakerA winding 1+ Speaker wire from winding 1+ to speaker b winding 1+ Amp - to Speaker A Winding 2 - speaker wire from winding 2- to speaker b winding 2 - then I two headed banana clipped the + and - of winding 1 and winding 2 bridged them and completed the 2ohm series WORKS BEAUTIFULLY!!!! |
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#6 |
diyAudio Member
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Sounds like a dangerously low impedance wired in parallel (if I understand correctly)... 1 or 2 ohms?
Why not wire in series, like others have suggested? Footnote: bigger boom will ensue from destroying the damping factor too, when wired in series.
__________________
HiFi aspirations since 1957. Currently working on motional feedback again... the final frontier in audio (and working on a folded 18-foot Voigt pipe) |
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#7 |
diyAudio Member
Join Date: Jul 2010
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well the speakers them selves are 2 ohm speakers and the amp runs 600 watts in both 2 and 4 ohms so why would that be dangerous? I wired it the way alpine said to wire two subs to one amp at 2ohms.
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#8 |
diyAudio Member
Join Date: Jul 2010
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http://support.alpine-usa.com/produc..._SWR-1242D.PDF
Heres the manual, let me know, cuz if i did wire it dangerously i will change it asap!! |
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#9 |
diyAudio Member
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Can't understand the pdf pictures. I didn't realize you had a stereo amp and each driver is connected to a different amp (see the ambiguity?). Sorry.
I suspect both the amp and speaker will be happier of you wire the two voice coils in series, as I described, and present the amp with a 4 ohm load. While I suppose the amp can drive a 2 ohm load OK, given the opportunity to use 4 ohms, I'd take it. But then again, I am not too familiar with auto sound practice. Tip: if the 2 ohm power output rating of the amp (amps?) is not fully double the 4 ohm rating, go with 4 ohm wiring.
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HiFi aspirations since 1957. Currently working on motional feedback again... the final frontier in audio (and working on a folded 18-foot Voigt pipe) Last edited by bentoronto; 23rd July 2010 at 12:59 PM. |
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#10 | |
diyAudio Member
Join Date: Feb 2006
Location: Hillsborough, NC
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Quote:
![]() ![]() ![]() Sounds like a 2 ohm final impedance is what you want.
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Jim The machine does not isolate us from the great problems of nature but plunges us more deeply into them. - Antoine de Saint-Exupéry |
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