What to look for in an amp?
Thread Starter
On The Tree
Joined: Apr 2007
Posts: 187
Likes: 0
From: Fruit City, TX
What to look for in an amp? Basically, im looking for an amp that will power 1 10" (RMS 150-250).
Im assuming by 2 and 4 chan, you're able to hook up 2 or 4 diff speakers to the amp.
Any suggestions on the brand and wattage of amp i should get? I'll most likely get a sub with about 150 RMS somewhere
Im assuming by 2 and 4 chan, you're able to hook up 2 or 4 diff speakers to the amp.
Any suggestions on the brand and wattage of amp i should get? I'll most likely get a sub with about 150 RMS somewhere
Thread Starter
On The Tree
Joined: Apr 2007
Posts: 187
Likes: 0
From: Fruit City, TX
bleh..
Would you be able to put all the power into 1 sub from a 2 or 4 chan amp?
edit...
i assume thats why you "bridge" it.. 2 or 4 chan into 1 sub
Would you be able to put all the power into 1 sub from a 2 or 4 chan amp?
edit...
i assume thats why you "bridge" it.. 2 or 4 chan into 1 sub
Last edited by woswill; May 5, 2007 at 08:09 PM.
TECH Addict
Joined: Sep 2006
Posts: 2,591
Likes: 1
From: Massachusetts
You always want a Class D monoblock amp for subs. They draw less power from your electrical system for the same amount of output (in other words, they're more efficient). Phoenix Gold and Hifonics are two "bang for your buck" brands.
Originally Posted by woswill
bleh..
Would you be able to put all the power into 1 sub from a 2 or 4 chan amp?
edit...
i assume thats why you "bridge" it.. 2 or 4 chan into 1 sub
Would you be able to put all the power into 1 sub from a 2 or 4 chan amp?
edit...
i assume thats why you "bridge" it.. 2 or 4 chan into 1 sub
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On The Tree
Joined: Apr 2007
Posts: 187
Likes: 0
From: Fruit City, TX
Ok heres a list of questions...
_______________________
Amp with 200 watts RMS x 1 at 4 ohms (4-ohm stable in bridged mode)
Would that blow a 150 RMS sub?
Iirc you can tune the RMS down on the amp?
________________________
Would a 100 RMS amp fail trying to power a 150 RMS sub?
Do these 2 have to be similar in RMS?
________________________
What difference does the OHMS make in a amp/sub combo?
Ya.. im a complete noob at this ****.
Im thinking about getting a Phoenix Gold amp as recommended, and buying a sub that matches its specs or comes close to it...
(ie.... 125 W x 2 @ 4 Ohms RMS powering 1 10" sub with 150 RMS, other chan is left alone so it doesnt blow sub)
_______________________
Amp with 200 watts RMS x 1 at 4 ohms (4-ohm stable in bridged mode)
Would that blow a 150 RMS sub?
Iirc you can tune the RMS down on the amp?
________________________
Would a 100 RMS amp fail trying to power a 150 RMS sub?
Do these 2 have to be similar in RMS?
________________________
What difference does the OHMS make in a amp/sub combo?
Ya.. im a complete noob at this ****.
Im thinking about getting a Phoenix Gold amp as recommended, and buying a sub that matches its specs or comes close to it...
(ie.... 125 W x 2 @ 4 Ohms RMS powering 1 10" sub with 150 RMS, other chan is left alone so it doesnt blow sub)
Originally Posted by woswill
Ok heres a list of questions...
_______________________
Amp with 200 watts RMS x 1 at 4 ohms (4-ohm stable in bridged mode)
Would that blow a 150 RMS sub?
Iirc you can tune the RMS down on the amp?
_______________________
Amp with 200 watts RMS x 1 at 4 ohms (4-ohm stable in bridged mode)
Would that blow a 150 RMS sub?
Iirc you can tune the RMS down on the amp?
________________________
Would a 100 RMS amp fail trying to power a 150 RMS sub?
Do these 2 have to be similar in RMS?
Do these 2 have to be similar in RMS?
________________________
What difference does the OHMS make in a amp/sub combo?
Memphis 500 rms x 1 at 2ohm class D amps can be had for $125 range used. They are compact, arguably very nice looking, and very efficient.
Better to have more power and not use it than not have enough.
Having said that, properly matching the driver to your enclosure will make more difference than using a 250 watt vs. 500 watt amp. You should pick all three carefully as a combination.
Better to have more power and not use it than not have enough.
Having said that, properly matching the driver to your enclosure will make more difference than using a 250 watt vs. 500 watt amp. You should pick all three carefully as a combination.
TECH Fanatic
Joined: Oct 2006
Posts: 1,003
Likes: 3
From: Champaign/Chicagoland
Originally Posted by woswill
Mono amp : 1 x 200W @ 2-ohm
That should be enough to power a 250 RMS sub at 4 ohm?
It seems the majority of subs are 4 ohm, so i should maybe look for a 4 ohm amp
That should be enough to power a 250 RMS sub at 4 ohm?
It seems the majority of subs are 4 ohm, so i should maybe look for a 4 ohm amp
Most voice-coils probably are of 4-ohm impedance, but so many have dual voice coils that can be wired for 2 ohms so it's a tough call. Also, most all amps are stable down to 2 ohms where you will produce the most power typically.
Thread Starter
On The Tree
Joined: Apr 2007
Posts: 187
Likes: 0
From: Fruit City, TX
RF amp
125 W x 2 @ 4 Ohms RMS
250 W x 2 @ 2 Ohms RMS
500 W x 1 @ 4 Ohms Bridged RMS
I think this amp would be best for powering 1 sub, since u can run 1 sub at 125 w @ 4 ohm or 1 sub at 250 wat @ 2 ohms
You can adjust the wattage though right? I dont want the full channels power going into the sub, im trying to make them last awhile
125 W x 2 @ 4 Ohms RMS
250 W x 2 @ 2 Ohms RMS
500 W x 1 @ 4 Ohms Bridged RMS
I think this amp would be best for powering 1 sub, since u can run 1 sub at 125 w @ 4 ohm or 1 sub at 250 wat @ 2 ohms
You can adjust the wattage though right? I dont want the full channels power going into the sub, im trying to make them last awhile
On The Tree
Joined: Apr 2007
Posts: 145
Likes: 0
From: Boise, ID
Originally Posted by woswill
You can adjust the wattage though right? I dont want the full channels power going into the sub, im trying to make them last awhile
I also agree with what some of the other posters have said: Get a Class D mono amp.