I have a pair 12" in pararel, running on 2 ohm. Each sub have 250 watt RMS.
What type of amps should I use?
I'm assuming that you're referring to the JBL's in your other post? If they are 4ohm SVC's subs wired in parallel for the 2ohm total load, then I'd suggest a Class D Mono amp rated at 500 x 1 @ 2ohms. Without the model number of the subs, I can't tell your Peak value (but it's usually around twice the RMS rating). So you should be able to safely throw 300 watts to each for a little more power. A JBL BP600.1 should work nicely.
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Squirrel
"No more Cpt. Kirk chit chat"
If its too loud, then you're too old
Donate to the12volt.comIf you buy a mono amp thats all you can use it for. I`d go with a amp that you can use for other things should you want to change the system. I say this because of the huge amount of used mono amps for sale because the owners changed the system. Also ,these amps are not selling for anything even close to what they cost. Alot of amps now will run1 channel- 2ohms stable as well as two,three and four channel. Class D sub only amp kinda limits you don`t it? Unless your going for that competition digital bass hammer.
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I think I see Light!
A little more on the amps...
Class D Mono amps were designed specifically to run subwoofers/drivers only. While Class A/B multi-channel amps were designed originally for mids/highs with Stereo
or Mono applications, but can also be used for subwoofers/drivers (as noted in the above post). Stereo (left/right) is wasted however on subwoofers/drivers though since bass is a mono signal.
Class A/B amps generally produce higher sound quality, but most are only 2ohm Stereo stable and 4ohm Mono stable. For most applications this is still acceptible, but not for others. Class D amps are usually at least 2ohm Mono stable, allowing more wiring configurations and subwoofer choices.
Compare the THD percentage (distortion ratio) for multiple amplifiers. Class A/B amps will generally produce a lower ratio of distortion then Class D's. But the Class D's will normally produce more wattage, are usually stable at lower mono ohm loads, for a cheaper price (at the cost of a minimal amount of distortion that is usually more geaRED / tuned for SQ applications).
In short, it is usually recommended to use Class A/B multi-channel amps for mids/highs, and Class D Mono amps for subwoofers/drivers. Although you can safely use a Class A/B multi-channel for most subwoofer/driver applications (and maintaining the proper minimum mono ohm load), you can usually get a more powerful Class D mono amp that has lower minimum mono ohm stability and costs less money.
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Squirrel
"No more Cpt. Kirk chit chat"
If its too loud, then you're too old
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