Jill
Premium Member
Registered: 8th Jun 01
Location: Aylesbury, BUCKS
User status: Offline
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Right people say that a mono amp can't power two subs correct?
Well in that case HOW exactly is it so that people do. For example:
-The Rockford Fosgate Golf contains 2 1501bd amps, powering two dvc subs each, AND
-The ICE place I recently went to were powering two Diamond Audio M6 12D2s off a single 1200.1.
So can one of you resident ICE experts explain how this is possible please? 
JILL 
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PainZ
Member
Registered: 28th Jun 02
Location: Camberley, Surrey - Drives a Black Vectra VXR Esta
User status: Offline
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you just wire them in series,
or is it the other one begining with a P?
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DC
Member
Registered: 24th Apr 02
Location: Grimsby, N.E.Lincs
User status: Offline
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A mono amp can power more than 1 sub, simple as that.
Who ever has said otherwise is wrong.
Basically depending on wheather the subs u run r dvc or single vc, what ohm voice coils they hav and how many subs u power of ya mono amp and how they r wired wil depend at what ohms ya amp wil run.
Companuies offer subs with different ohm voicecoils so that u can get the most out of the amp u have.
For example i wil use the Rockford 1501bd as an example.
They r 2 ohm stable. If you wanted to run 2 subs u wud b best buying Dual 2 ohm voicecoil subs because it would mean wired in series you could show a 2 ohm load to the amp. However if for example u wanted 1 sub you would be best with a dual 4 ohm voicecoil version because wired in parallel you could also show the amp the 2 ohm load u would want.
Can get a bit complicated i admit, lol. But basically mono doesnt refer to 1 as in 1 sub it refers to a mono signal as in not full range for powerin mids and tweeters etc.
Ice companies offer a range of voicecoil subs so u can run the amp u hav at the desired impiedance (ohms).
If i didnt explain nething or was to complicated just say and wil try and make it more basic.
D 
[Edited on 07-05-2004 by DC]
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Jill
Premium Member
Registered: 8th Jun 01
Location: Aylesbury, BUCKS
User status: Offline
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Cheers guys- DC I understand!
JILL
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cdcool1
Member
Registered: 9th Jun 02
Location: Scunny
User status: Offline
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Mono doesnt refer to the range of frequencies the amp puts out, it refers to the number of channels
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Jill
Premium Member
Registered: 8th Jun 01
Location: Aylesbury, BUCKS
User status: Offline
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So it's definitely possible? 
JILL
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ed
Member
Registered: 10th Sep 03
User status: Offline
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Yes, so long as you get a 2 ohm stable subs and monoblock, which can be run in series...
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cdcool1
Member
Registered: 9th Jun 02
Location: Scunny
User status: Offline
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yes it is, just as DC said, you simply have to match impedances
if you have specific amp and subs in mind i can tell you if they're ok together
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AdiSRI
Member
Registered: 1st May 02
Location: Berkshire
User status: Offline
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of course its possible a 1500.1 cud power 15 100w rms subs if u cud get the loads right and wanted to....
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peter_1.2
Member
Registered: 5th Jan 03
Location: Hertfordshire
User status: Offline
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im runnin 4 subs off my monoblock amp
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JayC
Member
Registered: 17th Jan 03
Location: Whitefield, Greater Manchester
User status: Offline
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I'm running two powerbase dual voicecoil subs of one MTX mono block.
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Jill
Premium Member
Registered: 8th Jun 01
Location: Aylesbury, BUCKS
User status: Offline
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quote:
Originally posted by AdiSRI
of course its possible a 1500.1 cud power 15 100w rms subs if u cud get the loads right and wanted to....
I don't think 15 subs would fit in my boot tho...    hehe!
Cheers guys btw
JILL
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Ian
Site Administrator
Registered: 28th Aug 99
Location: Liverpool
User status: Offline
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It is possible to run more than one sub from a mono amp - don't forget - it would be completely undesirable to have anything other than mono in this frequency range. You get the most punch and power from a unified movement, not fine detail and stereo separation which in the worst case could potentially cancel each other out.
The question of how many subs you run comes down to impedence of the subs and how much of this the amp can deliver. Some cheaper stuff will get all hot and bothered but the majority of amps designed for this purpose are built with this in mind and are suited to the job.
If you wire two identical subs in series, you half the impedence. If you wire them in parallel you double the impedence but its a waste of a sub - this arrangement makes no better use of the power output of an amp - each sub in this case just gets 50% of the power. This is waste of space in your boot!
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