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about sub + speakers on 1 amp?

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Old Aug 11, 2004 | 03:16 PM
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Default about sub + speakers on 1 amp?

well i had two amps in my car, a 600w 2channel rf amp, and a 800.4 rf amp and the 2ch was bridged for the sub, and 800/4 was for speakers, but i recently gave the 800/4 amp out to give back to my brother, am i able to amp the speakers+sub together?
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Old Aug 11, 2004 | 03:46 PM
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Default Re: about sub + speakers on 1 amp? (shyboy817)

Yes there is a way to do it but I don't recommend it. All you do is run your front and or rear speakers to the amp. Next get a coil from radio shack or your local audio store and put it in line with the positive wire coming from the sub. Hook up your sub as you had it before. The trick to this is to run your amp at full range so your interior speakers will have music coming through them. The coil on the sub takes the vocals away leaving you with just bass. I've hooked up a few cars this way and its cheap and it works but never really sounds that great.
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Old Aug 11, 2004 | 04:51 PM
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Default Re: about sub + speakers on 1 amp? (teamxtant)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by teamxtant &raquo;</TD></TR><TR><TD CLASS="quote">Yes there is a way to do it but I don't recommend it. All you do is run your front and or rear speakers to the amp. Next get a coil from radio shack or your local audio store and put it in line with the positive wire coming from the sub. Hook up your sub as you had it before. The trick to this is to run your amp at full range so your interior speakers will have music coming through them. The coil on the sub takes the vocals away leaving you with just bass. I've hooked up a few cars this way and its cheap and it works but never really sounds that great. </TD></TR></TABLE>
Have you take in consideration the kind of load you're putting to the amp by doing this?
Some amps are not stable at that kind of impedance. The sound will distort, the amp will get very hot and reduce its life span. Not to mention it will blow soon.
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Old Aug 11, 2004 | 04:57 PM
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Default Re: about sub + speakers on 1 amp? (shyboy817)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by shyboy817 &raquo;</TD></TR><TR><TD CLASS="quote">well i had two amps in my car, a 600w 2channel rf amp, and a 800.4 rf amp and the 2ch was bridged for the sub, and 800/4 was for speakers, but i recently gave the 800/4 amp out to give back to my brother, am i able to amp the speakers+sub together? </TD></TR></TABLE>

You always can check if the amp can work in three way mode. You might be able to run the front channels and a sub by following the wiring instructions.
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Old Aug 11, 2004 | 06:51 PM
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well i tried to use 1 channel for sub, other channel for speakers, didn't work out quite well, so i got sick of it and unplugged sub, and hooked up my speakers to amp only thanks for the suggestions
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Old Aug 12, 2004 | 02:03 AM
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Default Re: about sub + speakers on 1 amp? (Eric's R)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Eric’s R &raquo;</TD></TR><TR><TD CLASS="quote">Have you take in consideration the kind of load you're putting to the amp by doing this?
Some amps are not stable at that kind of impedance. The sound will distort, the amp will get very hot and reduce its life span. Not to mention it will blow soon.</TD></TR></TABLE>

If you have a 2 channel amp, you can run 2 ohms on each channel or 4ohms in bridge mode. You hook up your 4 ohm door speaker to each channel. At the same time, you hook up the sub to the bridge mode. This means that you are getting half the signal from one channel, and the other half of the signal from the other channel. You interior speakers and subs never combine meaning the amp only sees 4ohm on each channel. The only thing you have to do is take the vocals out of the sub (because the amp is running full range) through the use of a coil.
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Old Aug 12, 2004 | 11:03 AM
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Default Re: about sub + speakers on 1 amp? (teamxtant)

if you try to run your mids only on one channel you'll be listening in mono plus like Eric's R said the impedance make cause the amp to clip. get a second amp to run all that
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Old Aug 12, 2004 | 08:22 PM
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Default Re: about sub + speakers on 1 amp? (ipleadthe5th)

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Old Aug 12, 2004 | 08:44 PM
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Default Re: about sub + speakers on 1 amp? (teamxtant)

I currently have this setup in my winter beater, I had to take the 12 sub, and 1000 watt sub amp out to make room for a baby stroller....

I now have an old Nakamichi 8" free-air sub in an ol bazoka tube, with a Kicker sub crossover, and a set of Pioneer 6.5 coaxials running off of a Rockford 160a2, all of which I had liying around in the garage, works fine for me, just doesn't sound to hot at full volume, cuz the speakers break up easy (6.5's)

Either the sub will be to quiet or the interior speakers will break up too much... I'm running it successfully, but wouldn't recommend it for anyone who is really looking to jam a system ( it worked great in the 80's but we got better stuff and ways of doing things now)
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Old Aug 12, 2004 | 11:30 PM
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Default Re: about sub + speakers on 1 amp? (foz)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by foz &raquo;</TD></TR><TR><TD CLASS="quote">I currently have this setup in my winter beater, I had to take the 12 sub, and 1000 watt sub amp out to make room for a baby stroller....

I now have an old Nakamichi 8" free-air sub in an ol bazoka tube, with a Kicker sub crossover, and a set of Pioneer 6.5 coaxials running off of a Rockford 160a2, all of which I had liying around in the garage, works fine for me, just doesn't sound to hot at full volume, cuz the speakers break up easy (6.5's)

Either the sub will be to quiet or the interior speakers will break up too much... I'm running it successfully, but wouldn't recommend it for anyone who is really looking to jam a system ( it worked great in the 80's but we got better stuff and ways of doing things now)</TD></TR></TABLE>

I guess some people didn't think I knew what I was talking about.
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