American Bass Usa PH4000 MD 4000 Watt Mono Block Amplifier

Bought this amp to power 4 12" Alpine Type R subs in my e39 wagon. I had it wired to a 2ohm load, and it sounded great. Until it made one of the subs pop a tinsel lead. Oh well, I thought, time to buy some new subs anyway. I picked up two American Bass XFL 1244s. Holy. Crap. These two subs, a ported box built to AB SPL 2-12 spec, and this amp at a 1ohm load... gets down. I have a shuriken bt20 in addition to my factory agm battery, 1/0 and 4g wiring, appropriately sized fuses. It doesn't present a big strain to my stock alternator, i see no light dimming. It's gained up a little over half way and the bass boost is also about halfway. I have an audiocontrol matrix line driver with an adjustable voltage knob. Having the knob at 3/4 makes my roof flap, rear hatch panels want to come off, and my doors shake violently. It's beautiful.I hate when people review and it sounds like this is the first item they've ever owned and they just love it with no other comparisons. Well, I've owned somewhere in the neighborhood of 50-60 sub amps in the last 10 years. I've had many different brands (alpine, mtx, RF, kenwood, excelon, etc). This is without a doubt one of the best 'bang for the buck' amps I've ever owned. Just make sure you can run it at 1 ohm, that's where it's happiest.

Have this pushing an L7 15 and 12. Smaller than my JL JX360 amp, and after slamming it stays cooler. Best amp for the money hands down, does its rated power. Only upgrade to electrical system is 2/0 gauge wire for the big 3, could use an extra battery but surprisingly headlight dimming isn't that bad.Update: Still extremely satisfied, this is in a little Integra with a 90 amp alternator and last night I had it slamming all the way on top of my JL JX360 and it was difficult to notice any headlight dimming with all my lights on... Just be sure to run huge wires for this to reduce your resistance and use proper terminals. I don't recommend ring terminals because they're cheap and suck, you want all copper lugs. One last note, I am actually using just part of my 2/0 gauge welding cable in the amp as it doesn't fit, so I will have even less resistance when my wire reducers come. BEST AMP FOR THE MONEY, nuff said.

Don't listen to negative reviews. This amp is powerful and sounds good. 1700 RMS is great for the price. Everyone that's complaining in the reviews don't understandable the difference between RMS and Max power.

Good budget amp realistically does about 1,700 RMS... But works great... For the people reviewing saying it sucks and it doesn't work, I have a suggestion. One have a experience installer install it.... 2 have the electric to run it... It will go into protect if dropped into the 11s which is a good thing to protect its guts.... For this price I'll get a few more!!

Not a better amp out there for only 225$ I have a 2017 lincoln continental. Only running 2 vfl 8 inch. This amp at a 1/3 of power makes my ears ring. Also bench tested about 1650 watts at 1 ohm. But is really a 1 ohm stable amp.

Over all a good amp have it on 1 sundown x12d2 @1ohm. This amp is POWER HUNGERY!!! I have stock electrical and at certain frequency's (particularly highs) is tends to pop in and out of protect mode. make sure you have the electrical to back it up.

Pros: Tiny and i mean very tinyCons: Shuts off when underpowered and gets hot on two xfl12s @1ohm ( put fans on it ... hook them to the vehicles 12v switched power or put a relay on the remote wire )

Awesome product, running 2 American bass xfl 12s in a potted box setting on my back seat of a Ram 1500, ugraded alternator, big 3 and an extra cell. AMERICAN BASS knocks like no other in its price range. Make em wet and bang the block 24 hours a day!UPDATE, so I had the amp tested and at 14.4 volts at 1ohm it was not even putting out 1700rms, and under 800 at 2ohm. Kind of a let down American bass, don’t get me wrong subs are serious business. But come one why would you lie about the warts on your amps. Won’t be buying another amp!