Is it possable to hook up a pair of SVC subs to a 2 channel amp that pushes 800 watts and have each speaker getting 800 watts ?
amp is :Legacy LA590 2-Channel 800 Watt
Subs are:About LWF12X - Legacy "L" Series - 12" 500 Watt 4 Ohm
Replies (9)
accusedmonk on 08/28/2003 20:20:08
It would be better to match the rms's of the subs and amps, including the ohm values. In my case I'm running a 1600 rms amp, giving me 800 per channel at one ohm which I have it wired as now. The subs can handle 1000 rms.
Are those rms or max?
carfreak on 08/28/2003 20:56:30
hehe It is legacy I am sure that is MAX It is a set I got a year ago and I am thinking that being that the max would be 800 that means the RMS should be 400 to 500 Thats my theory on it. I figured that if I could bridge it and then push them at 3/4 gain maby they might sound better and not blow....I hope thats why I ask
then again the subs are prolly max too I don't know any Ideas on it
accusedmonk on 08/28/2003 21:13:14
Hmm, if that is max for the subs, and 800 is max for the amp, you'd get about 400 rms from the amp, netting 200 rms to each sub about, so that's only 50 under the possible rms of 250 maybe.
From what it's lookin like, the subs and amp are a pretty good match.
Buickman94 on 08/28/2003 21:45:39
That rating is definatly a max rating, and and overrated one at that. I doubt you are getting 400 watts rms out of that amp, but you also have legacy subs that are rated at 500watts max, meaning there rms is around half that, most likely lower.
I would not bridge that amp, as it is not 2ohm stable when brigged. just keep each sub connected to a different channel, thats your best bet.
carfreak on 08/28/2003 22:59:13
the amp is 2 ohm stable or so it says
ckoscin2 on 08/29/2003 02:30:45
my guess is that it is only 2ohm stereo stable not 2ohm mono/bridged stable.
carfreak on 08/29/2003 06:52:06
It says bridgeable on the amp too so that would lead me to beleave that it is 2ohm mono stable. I may be wrong .
audionewb on 08/29/2003 08:20:24
Here's what I've always kept as a rule of thumb kinda. The ratings of 2-ohm stereo and 4-ohm mono are the same, so if it can't go below 2-ohm stereo, it shouldn't be able to go below 4-ohm mono. I say shouldn't because you can set it up that way I (and the manufacturer) just don't recommend it as it could fry your amp. Actually I think 2-ohm mono is the same as 1-ohm stereo, and only really good or Class D amps such as Orion, JBL, Memphis can do that.
Swez on 08/29/2003 08:52:25
This amp is 2 ohms stable in 2 channel mode only. If you bridge the amp to MONO, you NEED A 4 OHM LOAD to run it in bridged mode.
Some amps will tolerate 2 ohms loads in MONO, but they heat up and this will shorten the life of the amp. The safest way to wire this amp/sub combo is 1 sub to each channel, 2 channel mode.
If you had a Class D or high current amp version, then a two ohm load would be fine.
Finally, Legacy grossly overstates power handling and amp output figures. They use peak output ratings at 14.4 volts input to rate sub amps. The peak ratings translate to <50% RMS power. Same with their subs.
Swez
amp is :Legacy LA590 2-Channel 800 Watt
Subs are:About LWF12X - Legacy "L" Series - 12" 500 Watt 4 Ohm
Replies (9)
accusedmonk on 08/28/2003 20:20:08
It would be better to match the rms's of the subs and amps, including the ohm values. In my case I'm running a 1600 rms amp, giving me 800 per channel at one ohm which I have it wired as now. The subs can handle 1000 rms.
Are those rms or max?
carfreak on 08/28/2003 20:56:30
hehe It is legacy I am sure that is MAX It is a set I got a year ago and I am thinking that being that the max would be 800 that means the RMS should be 400 to 500 Thats my theory on it. I figured that if I could bridge it and then push them at 3/4 gain maby they might sound better and not blow....I hope thats why I ask
then again the subs are prolly max too I don't know any Ideas on it
accusedmonk on 08/28/2003 21:13:14
Hmm, if that is max for the subs, and 800 is max for the amp, you'd get about 400 rms from the amp, netting 200 rms to each sub about, so that's only 50 under the possible rms of 250 maybe.
From what it's lookin like, the subs and amp are a pretty good match.
Buickman94 on 08/28/2003 21:45:39
That rating is definatly a max rating, and and overrated one at that. I doubt you are getting 400 watts rms out of that amp, but you also have legacy subs that are rated at 500watts max, meaning there rms is around half that, most likely lower.
I would not bridge that amp, as it is not 2ohm stable when brigged. just keep each sub connected to a different channel, thats your best bet.
carfreak on 08/28/2003 22:59:13
the amp is 2 ohm stable or so it says
ckoscin2 on 08/29/2003 02:30:45
my guess is that it is only 2ohm stereo stable not 2ohm mono/bridged stable.
carfreak on 08/29/2003 06:52:06
It says bridgeable on the amp too so that would lead me to beleave that it is 2ohm mono stable. I may be wrong .
audionewb on 08/29/2003 08:20:24
Here's what I've always kept as a rule of thumb kinda. The ratings of 2-ohm stereo and 4-ohm mono are the same, so if it can't go below 2-ohm stereo, it shouldn't be able to go below 4-ohm mono. I say shouldn't because you can set it up that way I (and the manufacturer) just don't recommend it as it could fry your amp. Actually I think 2-ohm mono is the same as 1-ohm stereo, and only really good or Class D amps such as Orion, JBL, Memphis can do that.
Swez on 08/29/2003 08:52:25
This amp is 2 ohms stable in 2 channel mode only. If you bridge the amp to MONO, you NEED A 4 OHM LOAD to run it in bridged mode.
Some amps will tolerate 2 ohms loads in MONO, but they heat up and this will shorten the life of the amp. The safest way to wire this amp/sub combo is 1 sub to each channel, 2 channel mode.
If you had a Class D or high current amp version, then a two ohm load would be fine.
Finally, Legacy grossly overstates power handling and amp output figures. They use peak output ratings at 14.4 volts input to rate sub amps. The peak ratings translate to <50% RMS power. Same with their subs.
Swez
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