• RMS: 1600W x 1 @ 4 ohms
• Peak: 3000W x 1 @ 2 ohms, 4000W x 1 @ 1 ohm
• Strappable Peak: 6000W x 1 @ 2 ohms
• Bass Boost 0-12 dB
• Heavy Duty Aluminum Alloy Heatsink
• Dimensions: 14-1/3"W x 5"D x 2-8/10"H
You will need an installation kit to install your amp, and the Belva BAK42 is the perfect kit for this amp. Simply click "Add Both to Cart" and receive 15% off the amp kit. This offer cannot be combined with any other coupons or offers.
While supplies last, get an additional 25% off the Belva 1.0 Farad Capacitor with 4 Gauge Amplifier Wiring Kit. This is a 2000 Watt Max Handling Amp Kit that provides the needed juice, flow and wiring for your new amplifier.
Priced separately $232 98
Bundle Savings of $13 75
Total bundle price:
Overall rating distribution
By feature average rating
July 13, 2014
Great amp, got two jl15's and they slam. I have its little brother the AR2500 powering two jl12's that pump hard. BOSS knows how to make quality budget products, looks good too. Total confidence in this brand and anything from Sonic Electronics is a safe bet. I plan on doubling what i have, strapping the AR.4000 to get the 8000watts and get another 2 15's then just getting another AR2500 for 2 more 12's. and maybe some 8's or 10's depending what deals sonic electronics has on ;)
PS Every amp gets hot, just make sure it gets good air flow and you have a really good ground, and you wont have problems because of it over heating.
December 4, 2013
Great amp but doesn't put out rated power
Sounds great, remote gain control works great, has a good HPF and subsonic filter, and the gain was easy to set to match the output from my bass processor. I'm getting about 700 watts rms output at 2 ohms and about 1050 watts rms at 1 ohm (measured with true RMS meters and factoring in group delay, impedence rise, etc.). This is with true 4 AWG pure copper power/ground cable and big 3 upgrade running on the stock alternator and battery (in 8th Gen Honda Accord). It appears to be 1 ohm stable although it's specified only down to 2 ohms. I ran it at 2 ohms for several months and am current running it at 1 ohm for past couple months. It went into protect mode (overheated) once early on before I upgraded the subwoofer speaker wire from 14 to 10 gauge and performed the big 3 upgrade.
March 23, 2013
Best Amp I've Had
I just bought one of these today and it makes my 2 alpine type e 10" subs bang hard without even breaking a sweat. You will need wiring bigger than 8 gauge cuz that's what I currently have in there and it's starving for power at points but it wouldn't be once I put my 2 gauge in very happy
February 24, 2015
Boss Is Hitting Low Notes!
Man I hear individuals hate on and bash Boss Audio but I'm here to tell u they either don't know how to install or hook up sound system equipment are just trying to get you to get jipped like they buddy or relative or even themselves by buying Upper class High end Name Brands. Iv'e had a couple of Boss class D amps and my uncle use to work in Audio shops fsince the mid 90's so he's 4-5 star experienced in hooking everythang up properly he tuned my amp set my radio spl settings and let me tell you Hard hitting Bass remote button is only on bout 4 to 5 it goes to 18, amp gain almost halfway everythang on my head unit is -negative man it is Rumble in The Trunk! I would say easy 725 watts @ 4 OHMS. Great for under $120 buks. As long as you don't have Competition woofers that require major wattage like 1000 watts eachRMS each speaker Boss will push reasonable DVC woofers that don't require monster watts. Install properly, Tune amp thoroughly, Set Head unit, WARNING The Amps Remote Control is not to be used as a volume button. Follow these steps thru and thru and you should be kosher. BASS=BOSS #I'm a Fan!
March 19, 2015
WHAT?!!? So confused
First I gotta say...I'm running 0 gauge ofc wire for power and ground, optima yellow top, 120amp alternator, 2 x Alpine 5th gen type R 12" at 1 ohm.
Was running a soundstream tx1.2000d amplifier that I bought new for $450. BLEW it within 50 minutes of run time playing Drake - Over.
Hooked this BOSS AR4000D...and let me tell you that I have had it for just over a month running exact same gear, and I cannot get it into protection mode haha!
Can't believe how good this amp is! And only paid $110!
Will definitely get another own and strap them together, it literally surprises me everyday how it handles!
GET THEM! stop listening to people that say these amps are the worst around...because it's definitely showing up my soundstream amp!
May 22, 2015
boss armor 4000d
Very pleased with this amp, i have it running 4-12'' rockford fosgate subs and it pounds. i personally think that with this amp, boss is finally making a name for themselves. i will be buying 1 more amp to push 8-12'' subs easily.
July 24, 2015
Fact Not Fiction
The Boss AR4000-D Amp Let me be 100% Truthful I read alot of reviews about Boss amps mostly bad reviews, But I know the reason why they leave bad reviews,They come from people who are not knowledgable about audio equipment and what factors need to be considered when purchasing amps, wiring kits,and head units etc.. Class d Boss amps will push any subwoofers that can handle 600 watts RMS as a pair meaning 300 RMS each sub, so if you got woofers that equal 2000 watts as a pair meaning 1000 RMS each sub and you put a Boss 3000 or 4000 class D 1 amp on them what do you expect read the specs in the amp guide info it tells the performance. And make sure you have the right size box set your head unit right and tune your amp according to your sub frequency and use true to size gauge amp wiring kits and use the remote gain control that comes with your Boss amp & hook up your equipment the right way and I promise you Boss won't dissappoint. Boss amps do overate their numbers in wattage though i'll admit that but its simple this amp puts out nowhere near 4000 watts but i scoped it and i can assure you it puts out 1600 @1ohm,1200 @2ohms,& 800@4ohms. If you ask me cheap price for this amount of wattage. And i have always been the type of person that test an item before i go off of other people's opinion all reviews aren't facts just other people's opinions most of the time. With all this said when i tweaked my settings on my head unit tweaked the amp settings to match my sub's frequency and adjusted my Remote control gain for the amp and by the way my amp is about at 2:00 pm that's like 12 -13 decibels it goes to 18 decibels thats all the way up so i have it turned up 2-3 notches past half way and my remote control gain isn't even half way and my whole car vibrates no flex zone.My head unit goes to 42 and on just 19-21 it's way to loud and make sure the head unit volts are 5 and up that's a important factor also. So when you follow these simple rules i promise you nothing but excellent results. Boss AR4000D is a great amp i will buy another one with no Problem. Another great Boss amp to buy to would be The Boss 3400D Riot Amp I owned it also had it for 8 months and great performance no cons at all sold it to my co-worker still going strong and hard til this day. I rock wit Boss they have great tweeters also i have owned like 5 sets and they all are still kicking loud and clear.
February 4, 2016
Wow small like a tablet bass like a monster
Using it to push an Orion HCCA 12.2 at 1 ohm stable. The installers were like no way this little thing. Well powered on and boom monster 2 days so far and hitting so effin hard I'm scared myself to death. After an he did go into protect then after 5 mins cooling down worked perfectly... Boss is a boss price is amazing for the real watts you get here
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• RMS: 300W x 1 @ 4 ohms, 500W x 1 @ 2 ohms
• Total Peak Power: 1000W
• CEA-2006 Compliant Amplifier
• 4-Channel Speaker-Level Inputs
• Heavy Duty Aluminum Alloy Heat-Sink
• Dimensions: 7-7/8"W x 7-7/8"L x 2-3/16"H
• RMS Power: 2000W x 1 @ 4 ohms, 4400W x 1 @ 2 ohms, 7500W x 1 @ 1 ohm
• Strappable for Up to 15,000W of Power
• Variable Low Pass Filter
• 550 Watts Peak x 1 @ 4 ohms
• 1100 Watts Peak x 1 @ 2 ohms
• 825 Watts RMS x 1 @ 2 ohms
• Remote Subwoofer Level Control Included
• Pulse Width Modulated MOSFET power supply
• Speaker-level (high-level) inputs
• Signal to Noise Ration: 102 dB
• Frequency Response: 9 - 50,000 Hz
• 563 Watts RMS x 1 @ 4 ohms
• 750 Watts RMS x 1 @ 2 ohms
• Total Peak Power: 1500 Watts
• Speaker-level (high-level) inputs
• Frequency Response: 9Hz - 50kHz
• Variable low-pass filter: 35 Hz to 160 Hz
• Class A/B Monoblock Amplifier
• Adjustable Gain Controls
• Low-Pass Filter: 40-300Hz
• Bass Boost: +0-12DB
• One pair of preamp outputs
• Remote bass knob included
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