anyone ever heard of these? looked allover the place and couldn't find much info on them. looking at the 401db model in particular. anyone shed some light on this mystery amp?
kinda choosing between these two
http://www.epinions.com/pr-Coustic_Car_Audio_401DB_Car_Audio_Amplifier/display_~full_specs
or
http://www.epinions.com/pr-Rockford_Fosgate_Punch_201S_Car_Audio_Amplifier/display_~full_specs
thank you
Replies (14)
uochronos on 01/30/2005 17:16:51
umm your choosing between a 1 channel amp and a 2 channel amp??
i see a problem accuring here... a 1 channel amp puts out full power at 2 ohm and the 2 channel amp puts out full power at 4 ohm.
now is the sub your hooking this up to a 4 ohm sub or a 2 ohm sub? because both these amps well not be able to work on the same sub and put out full power.
Chronos
danielm87 on 01/30/2005 20:53:56
I own a Coustic 801DB and its worked charmingly for me for the past year or so, no problems, runs cool for very long and after 2 hours or so at full volume you can barely sense the slightest warmness on the outside. I would reccomend the 801DB or the 401DB to ANYONE with the correct subwoofer/speaker setup and the money to buy one - and they're not expensive either. I have yet to find something to complain about in this amplifier, so as long as you get your setup checked by Chronos, i can verify that a Coustic amp wont disappoint you!
< Daniel >
danielm87 on 01/30/2005 21:00:38
Here's the manual for both the 801DB and 401DB in PDF & HTML.
Adobe form-
www.coustic.com/classic/PDFs/AMP-401_801_DBManual.pdf
HTML form-
http://64.233.161.104/search?q=cache:ZTEsv9kSZBEJ:www.coustic.com/classic/PDFs/AMP-401_801_DBManual.pdf+Coustic+801DB+manual&hl=en
uochronos on 01/30/2005 21:12:05
yes i agree looks like a solid entry level amp but we need to find out what ohmic load the sub(s) are going to be used before deciding what amp he would be better with.
Chronos
musak99 on 01/30/2005 22:49:20
o dear, thanks uochronos, when i looked at the specs they seemed exactly the same to me cept for the mono and stereo part of it. i was under the impression that if i were to bridge the stereo amp, the spec would be just the same as the coustic amp. anyways, the sub i'm looking to hook it up to would be an alpine type-s 12" svc. that's all i know about it, i don't know if it's 2ohm or 4ohm because i'm buying it off a friend and he doesn't know either! thank you.
musak99 on 01/30/2005 22:52:02
and yes the reason i am looking at these two amps is because right now i have found a couple really good deals for them, both about 90 bux used, canadian dollars. everything else i've seen within this price range has an rms rating not near these amps and everything else similar in power is almost 2x or 3x as much. thank you!
swez on 01/30/2005 22:58:10
If it's a SVC coil, most likely a 4 ohm model. I have yet to see a 2 ohm SVC sub.
If that is true, (and I am 99% sure on it) then using the 2 channel amp, bridged mono is the correct choice.
Since you are propably new to car audio, get a friend with adequate experience to help you install and set up the amp with you. We can help you along the way. But, a trained set of hands and eyes will insure a quality install.
Swez
PS Read the DIY articles too. Much good information in them to guide you.
musak99 on 01/30/2005 23:15:29
damn! well i just found the guy sold the coustic sub! so that's no longer an option.
musak99 on 01/30/2005 23:16:39
so swez, what your saying is that all mono amps are 2ohm? and now i when searching i should look for a stereo amp that can be bridged?
uochronos on 01/31/2005 02:40:06
ok most subs are SVC 4 ohm, DVC 4ohm, dvc 2ohm... thats not all fo them but thats most common ones. now a SVC 4 ohm needs an amp taht can put out sufficient power at 4 ohm... a DVC 4 ohm you wire the DVC's together for 2 ohm and need an amp that can put out the power at 2ohms... and a DVC 2ohm wired together well put out 1ohm or 4 ohm mattering how you wire it so you need an amp that can put out sufficient power at 1 or 4 ohm..
now hopefully i havent lost you..
now most mono amps put out full power at 2ohm and half that power at 4ohm... some mono amps are satble at 1ohm and then put out half that powerat 2ohm.....
now most 2 channel amps bridged put out full power into 4ohms... very very few are stable down to 2ohm but very few are..
now if you where to run your 4ohm satble 2 channel amp bridged with a 2 ohm load you would over heat the amp and end up causeing damage to the amp and drasticaly reduce its life..
now everything i said above is about the most common products some companies such as JL have amps that put out say 500watts on a 1 channel amp and are stable from 1-4ohm and put out the same amount of power no matter what ohmic load withen that range.
now if you have a 4ohm sub which we are 99.9% sure you do as swez said. then the choices for amp would be a 2 channel amp that when bridged puts out the RMS power that matches the sub. or a mono 1 channel amp that puts out the power you need at 4ohm.. however the later choice would be wasting a much mroe powerfull amp on a speaker that does not need it. though if you get a good deal on one why not hehe.
i'm sure after that i have thoroughly confused you so please ask any question about any parts i didnt explain well enough.
Chronos
musak99 on 01/31/2005 05:52:01
"a DVC 4 ohm you wire the DVC's together for 2 ohm and need an amp that can put out the power at 2ohms... and a DVC 2ohm wired together well put out 1ohm or 4 ohm mattering how you wire it so you need an amp that can put out sufficient power at 1 or 4 ohm."
i guess it does make sense but the part that kindof confused me is that when u put wires together, that the ohms can actually be less?? i would figure it'd be like this, 4+4=8 not 4+4=2 and 2+2=4(which u say it can be) but not 2+2=1....
so if i were to have a 2channel 4ohm amp, and i were to bridge it, i would end up with a 2ohm channel? if that's true, then if i had a 1 4ohm sub, i'd have to rule out 2 channel 4ohm amps if i were to bridge it and not planning an upgrade later on? or can a 2 channel 4ohm amp be bridged to have a mono 4ohm output?
haha no chronos, i don't think i'm really confused, just had to read that post about 3 times aha.
Victor on 01/31/2005 07:01:47
Hey.. this is for Walt and Swez... Please put up the sub-amp wiring diagrams we made.. Its a necessasry thing .. when we have worked so hard on it.. Why dont we make the best use of it.. If we have it on the site, it becomes easier to deal with posts like these.
It has been a real long time since we finished that project and submitted it.
Please see to it that the hard work does not go down the drain.
comments...??
Victor...
swez on 01/31/2005 08:11:31
Musak,
You are getting most of the concept here. After looking at Alpine SWS series subs, they are all DVC units. They come in 2 main flavors:
1. SWS-1242D (4+4 DVC) = 2 or 8 ohm load, depending on how they are wired to amp.
2. SWS-1222D (2+2 DVC) = 1 or 4 ohm load, depending on how they are wired to amp.
Let's keep it simple here. Find out which model sub you are getting, then we can help you find the best amp to match up the system.
Swez
musak99 on 02/1/2005 06:18:45
yah where dem diagrams?!?!! =)
weird because the guy who i'm grabbing the sub from said it was svc. i believe it's a few years old, that could be why?? can i tell if it's svc or svc just by looking at it?
can i tell the model of the sub by looking at it? like is it stamped? otherwise i could be s.o.l.
thankx tho
kinda choosing between these two
http://www.epinions.com/pr-Coustic_Car_Audio_401DB_Car_Audio_Amplifier/display_~full_specs
or
http://www.epinions.com/pr-Rockford_Fosgate_Punch_201S_Car_Audio_Amplifier/display_~full_specs
thank you
Replies (14)
uochronos on 01/30/2005 17:16:51
umm your choosing between a 1 channel amp and a 2 channel amp??
i see a problem accuring here... a 1 channel amp puts out full power at 2 ohm and the 2 channel amp puts out full power at 4 ohm.
now is the sub your hooking this up to a 4 ohm sub or a 2 ohm sub? because both these amps well not be able to work on the same sub and put out full power.
Chronos
danielm87 on 01/30/2005 20:53:56
I own a Coustic 801DB and its worked charmingly for me for the past year or so, no problems, runs cool for very long and after 2 hours or so at full volume you can barely sense the slightest warmness on the outside. I would reccomend the 801DB or the 401DB to ANYONE with the correct subwoofer/speaker setup and the money to buy one - and they're not expensive either. I have yet to find something to complain about in this amplifier, so as long as you get your setup checked by Chronos, i can verify that a Coustic amp wont disappoint you!
< Daniel >
danielm87 on 01/30/2005 21:00:38
Here's the manual for both the 801DB and 401DB in PDF & HTML.
Adobe form-
www.coustic.com/classic/PDFs/AMP-401_801_DBManual.pdf
HTML form-
http://64.233.161.104/search?q=cache:ZTEsv9kSZBEJ:www.coustic.com/classic/PDFs/AMP-401_801_DBManual.pdf+Coustic+801DB+manual&hl=en
uochronos on 01/30/2005 21:12:05
yes i agree looks like a solid entry level amp but we need to find out what ohmic load the sub(s) are going to be used before deciding what amp he would be better with.
Chronos
musak99 on 01/30/2005 22:49:20
o dear, thanks uochronos, when i looked at the specs they seemed exactly the same to me cept for the mono and stereo part of it. i was under the impression that if i were to bridge the stereo amp, the spec would be just the same as the coustic amp. anyways, the sub i'm looking to hook it up to would be an alpine type-s 12" svc. that's all i know about it, i don't know if it's 2ohm or 4ohm because i'm buying it off a friend and he doesn't know either! thank you.
musak99 on 01/30/2005 22:52:02
and yes the reason i am looking at these two amps is because right now i have found a couple really good deals for them, both about 90 bux used, canadian dollars. everything else i've seen within this price range has an rms rating not near these amps and everything else similar in power is almost 2x or 3x as much. thank you!
swez on 01/30/2005 22:58:10
If it's a SVC coil, most likely a 4 ohm model. I have yet to see a 2 ohm SVC sub.
If that is true, (and I am 99% sure on it) then using the 2 channel amp, bridged mono is the correct choice.
Since you are propably new to car audio, get a friend with adequate experience to help you install and set up the amp with you. We can help you along the way. But, a trained set of hands and eyes will insure a quality install.
Swez
PS Read the DIY articles too. Much good information in them to guide you.
musak99 on 01/30/2005 23:15:29
damn! well i just found the guy sold the coustic sub! so that's no longer an option.
musak99 on 01/30/2005 23:16:39
so swez, what your saying is that all mono amps are 2ohm? and now i when searching i should look for a stereo amp that can be bridged?
uochronos on 01/31/2005 02:40:06
ok most subs are SVC 4 ohm, DVC 4ohm, dvc 2ohm... thats not all fo them but thats most common ones. now a SVC 4 ohm needs an amp taht can put out sufficient power at 4 ohm... a DVC 4 ohm you wire the DVC's together for 2 ohm and need an amp that can put out the power at 2ohms... and a DVC 2ohm wired together well put out 1ohm or 4 ohm mattering how you wire it so you need an amp that can put out sufficient power at 1 or 4 ohm..
now hopefully i havent lost you..
now most mono amps put out full power at 2ohm and half that power at 4ohm... some mono amps are satble at 1ohm and then put out half that powerat 2ohm.....
now most 2 channel amps bridged put out full power into 4ohms... very very few are stable down to 2ohm but very few are..
now if you where to run your 4ohm satble 2 channel amp bridged with a 2 ohm load you would over heat the amp and end up causeing damage to the amp and drasticaly reduce its life..
now everything i said above is about the most common products some companies such as JL have amps that put out say 500watts on a 1 channel amp and are stable from 1-4ohm and put out the same amount of power no matter what ohmic load withen that range.
now if you have a 4ohm sub which we are 99.9% sure you do as swez said. then the choices for amp would be a 2 channel amp that when bridged puts out the RMS power that matches the sub. or a mono 1 channel amp that puts out the power you need at 4ohm.. however the later choice would be wasting a much mroe powerfull amp on a speaker that does not need it. though if you get a good deal on one why not hehe.
i'm sure after that i have thoroughly confused you so please ask any question about any parts i didnt explain well enough.
Chronos
musak99 on 01/31/2005 05:52:01
"a DVC 4 ohm you wire the DVC's together for 2 ohm and need an amp that can put out the power at 2ohms... and a DVC 2ohm wired together well put out 1ohm or 4 ohm mattering how you wire it so you need an amp that can put out sufficient power at 1 or 4 ohm."
i guess it does make sense but the part that kindof confused me is that when u put wires together, that the ohms can actually be less?? i would figure it'd be like this, 4+4=8 not 4+4=2 and 2+2=4(which u say it can be) but not 2+2=1....
so if i were to have a 2channel 4ohm amp, and i were to bridge it, i would end up with a 2ohm channel? if that's true, then if i had a 1 4ohm sub, i'd have to rule out 2 channel 4ohm amps if i were to bridge it and not planning an upgrade later on? or can a 2 channel 4ohm amp be bridged to have a mono 4ohm output?
haha no chronos, i don't think i'm really confused, just had to read that post about 3 times aha.
Victor on 01/31/2005 07:01:47
Hey.. this is for Walt and Swez... Please put up the sub-amp wiring diagrams we made.. Its a necessasry thing .. when we have worked so hard on it.. Why dont we make the best use of it.. If we have it on the site, it becomes easier to deal with posts like these.
It has been a real long time since we finished that project and submitted it.
Please see to it that the hard work does not go down the drain.
comments...??
Victor...
swez on 01/31/2005 08:11:31
Musak,
You are getting most of the concept here. After looking at Alpine SWS series subs, they are all DVC units. They come in 2 main flavors:
1. SWS-1242D (4+4 DVC) = 2 or 8 ohm load, depending on how they are wired to amp.
2. SWS-1222D (2+2 DVC) = 1 or 4 ohm load, depending on how they are wired to amp.
Let's keep it simple here. Find out which model sub you are getting, then we can help you find the best amp to match up the system.
Swez
musak99 on 02/1/2005 06:18:45
yah where dem diagrams?!?!! =)
weird because the guy who i'm grabbing the sub from said it was svc. i believe it's a few years old, that could be why?? can i tell if it's svc or svc just by looking at it?
can i tell the model of the sub by looking at it? like is it stamped? otherwise i could be s.o.l.
thankx tho
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