alpine mrp-m350 enough for...
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alpine mrp-m350 enough for... - 12/5/2007 11:51:02 AM
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AtreyuManiac
Posts: 52
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Is it enough power to run an alpine type r 12?
or 2 12" type s'
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RE: alpine mrp-m350 enough for... - 12/5/2007 12:06:22 PM
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hillbillyinOhio
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barely. just remember to not crank the gains to compensate for low power.
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RE: alpine mrp-m350 enough for... - 12/5/2007 12:22:17 PM
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AtreyuManiac
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what would be a good solid amp to power the alpine type r or two alpine type s'
giving them enough power
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RE: alpine mrp-m350 enough for... - 12/5/2007 12:44:27 PM
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hillbillyinOhio
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zx750.1 would work with either one type R 12 or two Type S
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RE: alpine mrp-m350 enough for... - 12/5/2007 1:11:35 PM
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AtreyuManiac
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A person from crutchfield tol me that the alpine mrp-m450 would be great to run a type r so i think thats what im going to with
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RE: alpine mrp-m350 enough for... - 12/5/2007 1:17:05 PM
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bobditts
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pdx 1.1000
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RE: alpine mrp-m350 enough for... - 12/5/2007 2:34:15 PM
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blazinloud
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well now thats 450rms to a 500 rms sub.
does 50 watts make a big difference? probably not. but that type r can handle way more than that.
I would take the single R over 2 type s 12's.
I would go with what hillbilly recommended and try to find a zx 750.1. Probably cheaper and more power.
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RE: alpine mrp-m350 enough for... - 12/5/2007 2:36:51 PM
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hillbillyinOhio
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yes, under-powering a speaker is usually just as bad as over-powering it. People will turn the gain and bass boost up more to get it louder, leading to speaker failure.
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RE: alpine mrp-m350 enough for... - 12/5/2007 2:54:09 PM
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blazinloud
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I thought over powering a sub is fine as long as distortion is left outta the picture.
distortion kills subs, not too little, or too much power.
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RE: alpine mrp-m350 enough for... - 12/5/2007 2:54:20 PM
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otnietdehoooo
The Chop Shop Moderator
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my zx750.1 was $180 USD shipped. idk about that alpine
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RE: alpine mrp-m350 enough for... - 12/5/2007 3:36:32 PM
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blazinloud
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was that a refurb.?
that is cheap, alpines amps are nice, but seem pretty expensive when compared to others.
dont get me wrong, I love my 501, but I payed almost $1 per watt retail. worth it? maybe.....if you really like fine tuning your system, the digi's were great.
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RE: alpine mrp-m350 enough for... - 12/5/2007 4:04:12 PM
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otnietdehoooo
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no it was new. i added all of the ebay auctions that werent "buy it now" to my watch list and watched and watched...
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RE: alpine mrp-m350 enough for... - 12/5/2007 4:18:13 PM
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bobditts
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quote:
ORIGINAL: blazinloud
well now thats 450rms to a 500 rms sub.
Actually those amps are pretty underrated and actually pump out a good 1200RMS @ 2 or 4 ohms
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RE: alpine mrp-m350 enough for... - 12/5/2007 4:47:58 PM
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blazinloud
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I was talking about the mrp-m450.
and actually, its only rated for 400rms at 2 ohms.
and i wouldnt call an extra 200 watts pretty over rated. 
my sundown will do over 2200rms at .35 ohms.....thats pretty underrated my friend.
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RE: alpine mrp-m350 enough for... - 12/5/2007 7:36:00 PM
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bobditts
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quote:
ORIGINAL: blazinloud
I was talking about the mrp-m450.
and actually, its only rated for 400rms at 2 ohms.
and i wouldnt call an extra 200 watts pretty over rated.
my sundown will do over 2200rms at .35 ohms.....thats pretty underrated my friend.
I think misunderstand the use of the term. I doubt your sundown amp was ever rated for anything at .35ohms. "rated" means that the company that makes the amp will do a certain power output at a certain impedence but is documented to actually put out more or less at that same impedence. In this case, at 2 or 4 ohms, the pdx 1.1000 is rated to pump out 1000RMS but in reality does about 1250RMS at 2 or 4 ohms (depending on the actual testing documented on the birth sheet). I highly doubt your sundown amp came with a birsheet that said "actual wattage - 2200RMS @ .35omhs".
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RE: alpine mrp-m350 enough for... - 12/5/2007 8:54:29 PM
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blazinloud
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*copy and pasted from Jacobs board* results from the sundowns...
Test Vehicle.. mine.. 05 aveo..
RMS clamp and dmm, as seen in the 12" test session..
This testing includes recent results, and not so recent..
woofers used.. 2 Mags (1.9 dcr per coil), 2 FI Q 12's (1.4 dcr per coil)
either used 1 sub or both of the pair for loads..
pure 60hz sine was used to tested.. just under audible clipping
1 amp, single 1000ca everstart maxx, factory alt
4 ohm nominal = 518 watts @ 88% efficiency (voltage fell from 14.3v, to 14.0v)
2 ohm nominal = 948 watts @ 85% efficiency (voltage fell from 14.3v, to 13.6v)
1 ohm nominal = 1510 watts @ 78% efficiency (voltage fell from 14.3v, to 12.4 volts
.5 ohm nominal = 1615 watts @ 72% efficiency (voltage fell from 14.3v, to 11.8v)
.35 ohm nominal = 1748 watts @ 67% efficiency (voltage fell from 14.3v, to 11.4v)
amplifier was protection happy @ .35 with tones, and some music.
IMO.. one 1500d should be limited to 1 ohm nominal use in factory electrical systems.. for the sake of the car.. not the amp
now... to have fun with some juice..
1 amp, single 1000ca everstart maxx, 1 Eagle Picher 12a5000, factory alt
4 ohm nominal = 520 watts @ 88% efficiency (voltage fell from 14.3v, to 14.1v)
2 ohm nominal = 960 watts @ 84% efficiency (voltage fell from 14.3v, to 13.7v)
1 ohm nominal = 1635 watts @ 75% efficiency (voltage fell from 14.3v, to 12.8 volts
.5 ohm nominal = 1890 watts @ 71% efficiency (voltage fell from 14.3v, to 12.8v)
.35 ohm nominal = 2245 watts @ 65% efficiency (voltage fell from 14.3v, to 12.8v)
amplifier did fine @ .35 with tones and music with the added battery
2 amps strapped, with both batteries (for the sake of not typing it over and over... voltage drops from 14.3v, to 12.8 the entire test... lol
4 ohm strapped = 1900 watts @ 82% efficiency
2 ohm strapped = 3150 watts @ 72% efficiency
1 ohm strapped = 3740 watts @ 68% efficiency
.5 ohm strapped = 4425 watts @ 65% efficiency
.35 ohm strapped = 5415 watts @ 62% efficiency
amps would only tolerate a VERY short burp @ .35..
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- Jacob Fuller
- Owner, Sundown Audio
- Associate, Stereo Integrity
not in the manual, or on the birth sheet. but this testing is from the man him self in a real world situation, just the way it should be imo. 5400 watts from a pair of 1500 watt amps aint too shabby imo
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