If I have 2 4ohm subs rated at 300wrms ea. and I connect them in parallel for 2ohm load, how many watts will I need to drive them both at rated wattage? I'm guessing 600? I'm also wondering if I have all of my amplifier options correct.
1- 600w@2ohm mono amp
2- 300w@4ohm mono amps (can be 2ch amps bridged)
1- 300w@4ohm x 2 2 ch. amp
1- 300w@4ohm x 2 4 ch. amps (bridged)
Replies (3)
swez on 04/28/2005 08:35:50
A 300-600 Wrms Mono amp is plenty for these pair of subs. Don't go with a 2 channel as you will not get the efficiency using a 2 channel for subs. I am assuming you mean 4 ohm, SVC's ?
Comsider Alpine, Kenwood, MTX, Kicker, JBL, Infinity or other similar quality brands. The main thing.... manage your current draw. There is only a +3dB difference between 300 & 600 watt amps, but with a 600 watt amp, you pull close to 2x the current.
Obviouly, E-bay will have the lowest prices, but usually no warrantee plan.
Swez
PS Just remember, the higher the wattage, the more current the amp will consume.
gearhead on 04/28/2005 09:23:50
Current draw isn't too much of a concern, I have 120A available. On the subject of current draw, if a 600wrms amp is ony used at 1/2 "throttle", will it only draw 1/2 of it's rated amperage (give or take a few amps)? Since I'm more of a mechanic than an electrician, I'm thinking along the lines of having a 500c.i. engine. If you only operate the engine at 1/2 of it's potential, it'll last a long time and never be stressed.
swez on 04/28/2005 19:13:33
That analogy will hunt ducks. Amps are like engines... you can have lots of CID and HP... but only when you hit the throttle, does all hell break loose. Same with Bass Engines. The more you hit the volume, the more juice they consume.
A good Class D, 600 Wrms @ 2 ohms will be plenty of reserve power when you want it. The rest of the time, it's just cruising along with minimal effort. Good strategy.
Swez
1- 600w@2ohm mono amp
2- 300w@4ohm mono amps (can be 2ch amps bridged)
1- 300w@4ohm x 2 2 ch. amp
1- 300w@4ohm x 2 4 ch. amps (bridged)
Replies (3)
swez on 04/28/2005 08:35:50
A 300-600 Wrms Mono amp is plenty for these pair of subs. Don't go with a 2 channel as you will not get the efficiency using a 2 channel for subs. I am assuming you mean 4 ohm, SVC's ?
Comsider Alpine, Kenwood, MTX, Kicker, JBL, Infinity or other similar quality brands. The main thing.... manage your current draw. There is only a +3dB difference between 300 & 600 watt amps, but with a 600 watt amp, you pull close to 2x the current.
Obviouly, E-bay will have the lowest prices, but usually no warrantee plan.
Swez
PS Just remember, the higher the wattage, the more current the amp will consume.
gearhead on 04/28/2005 09:23:50
Current draw isn't too much of a concern, I have 120A available. On the subject of current draw, if a 600wrms amp is ony used at 1/2 "throttle", will it only draw 1/2 of it's rated amperage (give or take a few amps)? Since I'm more of a mechanic than an electrician, I'm thinking along the lines of having a 500c.i. engine. If you only operate the engine at 1/2 of it's potential, it'll last a long time and never be stressed.
swez on 04/28/2005 19:13:33
That analogy will hunt ducks. Amps are like engines... you can have lots of CID and HP... but only when you hit the throttle, does all hell break loose. Same with Bass Engines. The more you hit the volume, the more juice they consume.
A good Class D, 600 Wrms @ 2 ohms will be plenty of reserve power when you want it. The rest of the time, it's just cruising along with minimal effort. Good strategy.
Swez
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