Yubbz
Joined: 06/03/13
Posts: 4
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Please help wiring subs for vehicle use
#1036804 - 06/03/13 09:43 PM
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Hi Everyone Hope we all doing well I Can't Seem to get this
right. I want to get 2x Pioneer TS-W309D4 1400W DVC Subwoofers. Now they are
400W RMS and rated at 4Ohms: http://www.pioneerelectronics.com/PUSA/Car/Subwoofers/Champion+Series/TS-W
309D4Now most of the monoblock amps i have found are 3000w but then only
380w RMS @ 4ohm and 750w RMS @ 2ohm so now i have found a 9000W mono but 1800w @ 1Ohm
Targa Viper 9000: http://www.autostyle.co.za/car-audio-1/car-amplifiers-crossovers/targa-180
0-rms-1-ohm-amplifier.html(I am from South Africa hence the autostyle
site) I have found the wiring diagram to wire them to 1Ohm at: http://a248.e.akamai.net/pix.crutchfield.com/ca/learningcenter/car/subwoof
er_wiring/2-DVC-4-ohm-mono-low-imp.jpgAnd 4Ohm at: http://a248.e.akamai.net/pix.crutchfield.com/ca/learningcenter/car/subwoof
er_wiring/2DVC_4-ohm_mono.jpgNow considering the 2x 400w rms subs and the
1800rms 1ohm amp how would you recommend wiring it so i don't blow anything and have the
best sound? 4Ohm on the amp will push out 650W... is that right? Thanks for any and all future help Yubbz
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Hugh Robjohns
SOS Technical Editor
Joined: 25/07/03
Posts: 18368
Loc: Worcestershire
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Re: Please help wiring subs for vehicle use
[Re: Yubbz]
#1036847 - 07/03/13 09:28 AM
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Car audio isn't really what this forum is about... and you already seem to have the
appropriate wiring diagrams to connect your dual voice-coil speakers in such a way that
they present a 1 Ohm load to your amp. So I don't really understand what you're
asking, or why you're asking it here. Hopefully you'll have your car's body
panels shaking and rattling excessively very soon!  H
-------------------- Technical Editor, Sound On Sound
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Yubbz
Joined: 06/03/13
Posts: 4
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Re: Please help wiring subs for vehicle use
[Re: Hugh Robjohns]
#1036935 - 07/03/13 04:45 PM
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Thanks H
My thing is that the subs are 2x 400W with 2x4Ohm coils each. The Amp
is 1800W at 1Ohm which would cook the subs... now if i go to 2O then i have around (im
guesssing) 1200W which is still a tad strong. 4Ohm is around 650W which is now too low i
assume, and there will be clipping, im asking how to wire them in such a way to get the
best quality and power without cooking anything.
The Amp that i showed is a
9000W amp (which is 1800W at 1Ohm) is that too high? there is a 4000W that is 500w RMS at
1Ohm so what do i do
Thanks
Yubbz
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Hugh Robjohns
SOS Technical Editor
Joined: 25/07/03
Posts: 18368
Loc: Worcestershire
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Re: Please help wiring subs for vehicle use
[Re: Yubbz]
#1036941 - 07/03/13 05:07 PM
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Quote Yubbz:
My thing is that the
subs are 2x 400W with 2x4Ohm coils each. The Amp is 1800W at 1Ohm which would cook the
subs...
Then don't turn it up
full!
Quote:
now if i go to 2O then i have around (im guesssing) 1200W which is still a tad strong.
The amp manufacturer should give
ratings for higher load impedances. Generally, it is better to have more power on hand
than the speaker's rated power.
Quote:
im asking how to wire them in such a way to get the best quality
and power without cooking anything.
If you can't find anyone with specific experience of these components in a
car-audio application, then I would suggest experimenting with differeing wiring
arrangemetns to see what works best.
I'd suggest starting off by wiring them
for a 4ohm load (wire the two coils of each speaker in series to give 8ohms per speaker,
and then wire the two speakers in parallel to give a four ohm total load to the amp.
Depending on how well that rearranges your internal organs, you could then re-wire
to try a 2ohm load (wire to only one set of coils for each speaker, and wire the speakers
in parallel), or the 1 ohm load (both colis in parallel, and both speakers in
parallel).
You'll probably find this forum of more specific help:
http://www.caraudioforum.com/
H
--------------------
Technical Editor, Sound On Sound
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Yubbz
Joined: 06/03/13
Posts: 4
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Re: Please help wiring subs for vehicle use
[Re: Hugh Robjohns]
#1036959 - 07/03/13 07:09 PM
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Thanks H
This will Help a lot...
One last thing.... do you think
this is overkill for 4x 50Rms 4way speakers?? im after a good sound system, not an organ
remover :P
Thanks
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Hugh Robjohns
SOS Technical Editor
Joined: 25/07/03
Posts: 18368
Loc: Worcestershire
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Re: Please help wiring subs for vehicle use
[Re: Yubbz]
#1037013 - 08/03/13 09:01 AM
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I'm not an expert in car sound systems I'm afraid, and I've never really seen the point in
spending vast amounts of money on specialist 'hi-fi' equipment for use in an electrically
and acoustically very hostile environment, which is easily steal-able, and one in which
excessively loud music will potentially distract from the life-critical role of
driving.
I like good sound, I like to listen to music while I drive, but I'm
yet to meet a factory-fit install that wasn't adequate for that purpose...
As I
said, I think you will get more relevant and supportive advice from a dedicated car hifi
forum and website. But I hope you achieve what you are trying to do and wish you good luck
with it.
H
--------------------
Technical Editor, Sound On Sound
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Yubbz
Joined: 06/03/13
Posts: 4
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Re: Please help wiring subs for vehicle use
[Re: Hugh Robjohns]
#1037146 - 08/03/13 07:10 PM
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Thanks H Had a lot a of help from a fudi here in town today Thanks
for all the help, it really is very much appreciated  Have a great evening Yubbz 
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chris...
active member
Joined: 12/03/03
Posts: 4152
Loc: Glasgow
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Re: Please help wiring subs for vehicle use
[Re: Hugh Robjohns]
#1037166 - 08/03/13 09:04 PM
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Quote Hugh Robjohns:
I like good
sound, I like to listen to music while I drive, but I'm yet to meet a factory-fit install
that wasn't adequate for that purpose...
Interesting - I've yet to meet one that is...
That
said, I probably have at least one order-of-magnitude less amplification than the OP.
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Hugh Robjohns
SOS Technical Editor
Joined: 25/07/03
Posts: 18368
Loc: Worcestershire
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Re: Please help wiring subs for vehicle use
[Re: chris...]
#1037173 - 08/03/13 09:42 PM
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Small and highly resonant environment with atrocious standing waves, vibrating surfaces,
and an ambient noise floor above 55dB SPL on a really good day. Not exactly a quality
listening environment, is it? And more power really isn't the answer... H
-------------------- Technical Editor, Sound On Sound
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Kwackman
Joined: 07/11/02
Posts: 1245
Loc: Belfast
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Re: Please help wiring subs for vehicle use
[Re: Yubbz]
#1037176 - 08/03/13 10:05 PM
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I find the stock car audio system useful.
When I can't turn it up loud enough to
drown out the graunchy rumble, it means I really DO need to change the wheel bearings.
--------------------
Cubase, guitars.
Edited by Kwackman (08/03/13 10:06 PM)
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James Perrett
Joined: 10/09/01
Posts: 9654
Loc: The wilds of Hampshire
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Re: Please help wiring subs for vehicle use
[Re: chris...]
#1037523 - 11/03/13 12:43 PM
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Quote chris...:
Quote Hugh Robjohns:
I like
good sound, I like to listen to music while I drive, but I'm yet to meet a factory-fit
install that wasn't adequate for that purpose...
Interesting - I've yet to meet one that is...
Factory fitted systems have come on in
leaps and bounds in the last 25 years. When I was younger, the first thing I would do when
I bought a new car would be to put in a decent stereo and wire up my B&W LM-10 speakers. I
haven't felt the need to do that in the last few cars I've owned.
James.
--------------------
JRP Music - Audio Mastering and Restoration.
http://www.jrpmusic.net
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