What is class AB?

[IKnowImLost224]

I am trying to help a friend get a decent amp that will put out around 2200-2400 rms @ 1 ohm for around $200 and was looking into the DB Drive A4 2400. It says its class AB technology but I have no idea what that means and wanted to know what people think of it or if you have other suggestions or an amp for sale.. It's $170 brand new on eBay.

[BobbyG2]

That amp is only fused for 90 amps, only 900-1200watts.

If you want an amplifier that does 22-2400 look for something with 200+ amps in fuses.

Here's the cheapest options I would feel comfortable recommending to a friend:

BRZ2100.1: $300

http://www.wooferset...-amplifier.aspx

Crescendo BC2000D: $380

http://store.soundso...-amplifier.html

BRZ2400.1: $400

http://www.wooferset...-amplifier.aspx

AQ 2200D: $430

http://www.audioque....ifier_p_31.html

Or browse the FS section.

[Raptorman]

That 2100 is $260 on Sonic

http://www.sonicelec...BRZ2100.1D.html

Also the 2400 is $275

http://www.sonicelectronix.com/item_23550_Hifonics-Brutus-BRZ2400.1D.html

[Wicks]

Class AB is the classification of the amplifier architecture.

Larger mono-block amps lately are generally Class D due to the increased efficiency they provide.

If you feel like some "light" reading:

http://en.wikipedia....ronic_amplifier

As stated above, go by the fused rating. Many "cheaper" amps will boost their ratings to make you think they produce more power then they actually do.

You want 2kW then divide by the general efficiency of 70% (if class D) to get a power requirement of ~2860W.

2860W/13.8V = ~207A

So as stated, you want an amp with a 200A fuse and yes it is going to cost you more than $200.

Back when I started in car audio, it was $1 per watt so these prices are CHEAP.

As with almost everything, you get what you pay for.

[Watch the bass]

http://www.ebay.com/itm/290778323734?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649

http://www.ebay.com/itm/NEW-HIFONICS-ZRX20001D-2000W-CLASS-D-MONO-CAR-AUDIO-AMPLIFIER-AMP-ZRX-2000-1D-/280988079186?pt=Car_Amplifiers&hash=item416c31d452

[IKnowImLost224]

Thanks for all of the help and suggestions fellas! I forwarded him the info on the hifonics that was $209 on eBay. I have been keeping a eye open on Craigslist but will check the FS posts as well