OK my friend goes to a trade school Erie 1 boces for electronics and the teacher is teaching him that you need more watts in the amp then for the sub or you will blow your subs if you don't have more watts in the amp? It is like backwards right? Well I have a MA Audio M12080i 1000watt amp, 2 channel, 500 max out both channels and 250 rms out both also. I am thinking about buying a set of Audiobahn AW1200Q 12" 700 watt rms and 1000 watt max power for my amp would it work together really good?
Replies (14)
asplundher on 04/22/2004 17:50:56
As long as the amp's rms is at least half of the rms of the sub you will be okay. However slightly more than the sub's maximum rms is better in keeping distortion from blowing them.
saintanddolphin on 04/22/2004 18:40:07
I cannot find this amp on the net.
Check that model# again please.
Mike
PItbull14218 on 04/22/2004 21:33:56
O sorry man, the Model # is M1280i not M12080, sorry i am used to having the 0 in there because of them subs having a bunch, well lets see, The Amp is 2 channel 500 watts, and 250rms each channel, those subs are Audiobahn AW1200Q 12"s and they are rated at 700 RMS ,1400watts per sub max wattage, so would they work together good? my amp is 2ohm stable and the subs are 1Ù, 4Ù, or Dual 2Ù Operation. so thanks for the help so far and i would like to know what you think of audiobahn are they a good company ?
Tinker18 on 04/22/2004 22:20:54
audiobahn makes pretty good products but it's not a good idea to push a 700 watt rms sub with only 250 watts rms from your amp. To sound decent, the amp needs to push out at least 400 or higher RMS with each of those subs.
swez on 04/23/2004 08:14:46
The teacher is pointing a very basic fact about sound systems... having a large enough amp to run a given sub with clean power at all volume levels.
I addressed that subject a few days ago in a post called "Dynamic Headroom"
http://www.clubknowledge.com/Car_Audio_FAQ/?g1514_1165
Swez
asplundher on 04/23/2004 08:57:38
If the amp will give a power increase up to at least half or more of the subs required rms in a 2 ohm load, then I don't see a problem.
Personally I would go to a higher powered amp for safe keeping though. 700 rms is a lot to be required especially when you got two of them! (1400 rms combined, whew!)
PItbull14218 on 04/24/2004 22:35:29
what if i have my amp bridged, then the 250 rms out both channels would be 500 out both and the 2 subs would have 500 rms to them even though they are 700 rms. would that work good?
Tinker18 on 04/24/2004 22:39:15
no because you are using two subs, and it would divide the 500 rms into each of those subs, so 500 divided by two still equals 250 to each sub. it would work for one though.
swez on 04/25/2004 12:09:10
Yes, they will work at 250 per sub, but if you try to push the amp beyond noremal operational limits, clipping becomes an issue and very hard on even a robust sub like mentioned.
If you start to clip the amp, bass will get muddy, poor definition and just plain sloppy bass.
In Pro Audio applications, we often run a 1200 watt (RMS) sub with ~3000 watts of power to same. No, we don't run the amp at 3,000 watts continous power... but we do have 3-5dB of "dynamic headroom" in the amp to manage music peaks w/o distortion or clipping the amp either.
Swez
PItbull14218 on 04/25/2004 13:34:48
i heard that youu can bridge 2 subs? my amp says it is a 1000watt competition amp m1280i . then can you give me an ideas of what subs i should get?
swez on 04/26/2004 14:22:44
These Bahn subs are rated at 700 watts RMS each. They are 4+4 DVCs, so you have 2 options in wiring them to your MA amp.
1. Wire sub in parallel for a 2 ohm load, and run it off channel 1 of amp... do the same for other sub off channel 2. This is the easiest way to get full output from this amp.
2. You can also bridge the amp to MONO, then wire each sub for for 8 ohms (series) and then wire both subs together in parallel for a 4 ohm load. This one is a bit more tricy to wire properly.
I cannot find any specs on that amp number you noted earlier. It seems to be the right p/n, but I did not see it on the MA web site.
What are the fuses in that amp?
OK, your amp is a bit low in power to drive thee subs to full potential. However, this amp will drive the subs just fine when wired as noted above. Just make sure you match the HU output voltage and the amp gain settings properly and avoid using excess bass boost on HU or amp.
Is this one of the older Mi series with the plexiglas top cover where you can see the guts?
Swez
PItbull14218 on 05/2/2004 01:17:54
Sorry long time no see, ok my amp is not the high current one so i heard you can't bridge it, i got 2 30 fuse's and i am getting the kicker Comp VR 2 12". they are rated at 800watt max power and 400 RMS. yes you can see the gutz it has the glass. Is there a differnence in power between getting th e2 ohm version of the kickers or the 4ohm cuz i can get either . same wattage it says at the kicker site. thanks so far
uochronos on 05/2/2004 02:49:14
you need one that matches the amp you well be using some amps put out full power at 4 ohms some put it out at 2 ohms. so you need to match your sub Ohm to wehat your amplifier puts out the most power at. if its a mono amp cl;ass D then it is problay 2 ohms if its a 2 channel ampo bridged then its problay 4 ohms if yopur using both channels off of a 2 channel amp seperatly then its problay 2 ohms. i really hope that made since .
swez on 05/2/2004 14:01:19
Get the 4+4 DVC's for this amp.
The easiest way to wire it, is wire each sub for a 2 ohm load (both coils in parallel) and use 1 channel per sub. That will give you the most power to each sub and easiest to wire.
You say the amp has 2 x 30 amp fuses?
14.4 volts x 60 amperes = 864 max watts
864 x.6 = 518 watt RMS total or ~260 watt RMS per sub with a 14.4 volt input to amp. If your amp gets less voltage than 14.4, then RMS output will be a bit less to each sub.
This should be a nice bass machine after installed.
Swez
Replies (14)
asplundher on 04/22/2004 17:50:56
As long as the amp's rms is at least half of the rms of the sub you will be okay. However slightly more than the sub's maximum rms is better in keeping distortion from blowing them.
saintanddolphin on 04/22/2004 18:40:07
I cannot find this amp on the net.
Check that model# again please.
Mike
PItbull14218 on 04/22/2004 21:33:56
O sorry man, the Model # is M1280i not M12080, sorry i am used to having the 0 in there because of them subs having a bunch, well lets see, The Amp is 2 channel 500 watts, and 250rms each channel, those subs are Audiobahn AW1200Q 12"s and they are rated at 700 RMS ,1400watts per sub max wattage, so would they work together good? my amp is 2ohm stable and the subs are 1Ù, 4Ù, or Dual 2Ù Operation. so thanks for the help so far and i would like to know what you think of audiobahn are they a good company ?
Tinker18 on 04/22/2004 22:20:54
audiobahn makes pretty good products but it's not a good idea to push a 700 watt rms sub with only 250 watts rms from your amp. To sound decent, the amp needs to push out at least 400 or higher RMS with each of those subs.
swez on 04/23/2004 08:14:46
The teacher is pointing a very basic fact about sound systems... having a large enough amp to run a given sub with clean power at all volume levels.
I addressed that subject a few days ago in a post called "Dynamic Headroom"
http://www.clubknowledge.com/Car_Audio_FAQ/?g1514_1165
Swez
asplundher on 04/23/2004 08:57:38
If the amp will give a power increase up to at least half or more of the subs required rms in a 2 ohm load, then I don't see a problem.
Personally I would go to a higher powered amp for safe keeping though. 700 rms is a lot to be required especially when you got two of them! (1400 rms combined, whew!)
PItbull14218 on 04/24/2004 22:35:29
what if i have my amp bridged, then the 250 rms out both channels would be 500 out both and the 2 subs would have 500 rms to them even though they are 700 rms. would that work good?
Tinker18 on 04/24/2004 22:39:15
no because you are using two subs, and it would divide the 500 rms into each of those subs, so 500 divided by two still equals 250 to each sub. it would work for one though.
swez on 04/25/2004 12:09:10
Yes, they will work at 250 per sub, but if you try to push the amp beyond noremal operational limits, clipping becomes an issue and very hard on even a robust sub like mentioned.
If you start to clip the amp, bass will get muddy, poor definition and just plain sloppy bass.
In Pro Audio applications, we often run a 1200 watt (RMS) sub with ~3000 watts of power to same. No, we don't run the amp at 3,000 watts continous power... but we do have 3-5dB of "dynamic headroom" in the amp to manage music peaks w/o distortion or clipping the amp either.
Swez
PItbull14218 on 04/25/2004 13:34:48
i heard that youu can bridge 2 subs? my amp says it is a 1000watt competition amp m1280i . then can you give me an ideas of what subs i should get?
swez on 04/26/2004 14:22:44
These Bahn subs are rated at 700 watts RMS each. They are 4+4 DVCs, so you have 2 options in wiring them to your MA amp.
1. Wire sub in parallel for a 2 ohm load, and run it off channel 1 of amp... do the same for other sub off channel 2. This is the easiest way to get full output from this amp.
2. You can also bridge the amp to MONO, then wire each sub for for 8 ohms (series) and then wire both subs together in parallel for a 4 ohm load. This one is a bit more tricy to wire properly.
I cannot find any specs on that amp number you noted earlier. It seems to be the right p/n, but I did not see it on the MA web site.
What are the fuses in that amp?
OK, your amp is a bit low in power to drive thee subs to full potential. However, this amp will drive the subs just fine when wired as noted above. Just make sure you match the HU output voltage and the amp gain settings properly and avoid using excess bass boost on HU or amp.
Is this one of the older Mi series with the plexiglas top cover where you can see the guts?
Swez
PItbull14218 on 05/2/2004 01:17:54
Sorry long time no see, ok my amp is not the high current one so i heard you can't bridge it, i got 2 30 fuse's and i am getting the kicker Comp VR 2 12". they are rated at 800watt max power and 400 RMS. yes you can see the gutz it has the glass. Is there a differnence in power between getting th e2 ohm version of the kickers or the 4ohm cuz i can get either . same wattage it says at the kicker site. thanks so far
uochronos on 05/2/2004 02:49:14
you need one that matches the amp you well be using some amps put out full power at 4 ohms some put it out at 2 ohms. so you need to match your sub Ohm to wehat your amplifier puts out the most power at. if its a mono amp cl;ass D then it is problay 2 ohms if its a 2 channel ampo bridged then its problay 4 ohms if yopur using both channels off of a 2 channel amp seperatly then its problay 2 ohms. i really hope that made since .
swez on 05/2/2004 14:01:19
Get the 4+4 DVC's for this amp.
The easiest way to wire it, is wire each sub for a 2 ohm load (both coils in parallel) and use 1 channel per sub. That will give you the most power to each sub and easiest to wire.
You say the amp has 2 x 30 amp fuses?
14.4 volts x 60 amperes = 864 max watts
864 x.6 = 518 watt RMS total or ~260 watt RMS per sub with a 14.4 volt input to amp. If your amp gets less voltage than 14.4, then RMS output will be a bit less to each sub.
This should be a nice bass machine after installed.
Swez
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