Customer Ratings & Reviews

NVX MAN IOWA

I bought this kit for a customer who has 2- Hifonics Amps, a BRX2000.1 & a BRX640.4, the wires were flexible & a ease to run in a 04' Monte Carlo! I was alittle concerned cause of the price but let me tell you, this price is a SUPER STEAL! We are running about 2328watts of actual power & wire is holding up great... Definitely will buy again when I need a big power wire kit! For Sure... I'm a huge NVX fan wires & all, this is great too!! NVX MAN is out!!!

ok

Not as thick as I though but it's good for my 1000 Watt amp. Have bought one for my truck 2 years ago and it seen like that one was big then this one but the same name and guage.

Works great!

Would definitely order again for someone who needs this. Easy to install works great.

By Kenneth on January 19, 2020 Verified purchase

good wire

This wire is worth the money. I can't say what guage it is for sure, gut it's a full 1/2 inch or more thick and it is copper. The fuse and rca jacks are really nice also. The only thing wrong is the zip ties are so old they are brittle. Other than that, well worth it.

Excellent priduct for the price

Shopped around, Good quality heavy cable, did what i needed it to do, EXCELLENT PRICE & FAST SHIPPING!!!!! THANKS

By Anonymous on September 16, 2019 Verified purchase

Love it

i definately recomend this product for anyone doing a small daily driver install

Nice amp kit

The Belva 0 gauge kit is a very good buy for the money. It came with a well made fuse holder and good RCA cables.

By Fred on February 26, 2017 Verified purchase

More power

I added a second amp to my system which meant I needed an upgrade. This kit had everything I needed and good quality. Budget friendly.

By ClNShvN on January 16, 2020 Verified purchase

All good except rca

Wire is easy to run nice and flexible but rca cables are cheap af handle with care

By Chance on August 16, 2017 Verified purchase

awesome

I have this amp hooked up to 4 kicker comps and it pushes them hard and loud and it has never over heated on me I really recommend this amp it has a lot of power and a good price.

Durable Amp

this amp keeps up with my subs no matter what I hook up. And yes it does work at 1 Ohm.

bangin' BOSS

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.

Great deal

The Boss amp works great. It arrived on time no delays. All reps where very helpful, I would always use Sonic Electronix for all of my electronic needs.

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.

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

just luv this company. been around 4 awhile. never let me dwn. sincerely goldegal59.

Haven't installed system yet. For my wife & I. Thank u.

mr.850

man i got these on 3 15" phantom boss subs and im ready for any body out there and by the way 8 6/2 speakers in the doors and 12 6x9 so bring it on and outside p a speakers.

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!

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!

Overall great starter amp.

Great amp for anyone who is just starting up. Wattage and RSM is over rated no way near to what it says maybe it 25% of what the manufacturer states.

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.

Got what I expected

This amp is listed at 4000 watts and is not but for the price I got a great amp that adds plenty of thump to my system. Definitely recommend.

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.

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

By Skyler on February 4, 2016 Verified purchase

Decent power

Had this amp hooked up to 2 nko 12s and people was surprised at what amp I actually had for something to get you banging well worth it

By Clarence on March 21, 2025 Verified purchase

Excellent

No problem great product for the price... would recommend to any one looking for bass at cheap price didn't expect to perform the way it did...

By Dominique on June 5, 2020 Verified purchase

Boss AR4000D

The amp works well but I have had a few overheating issues

Great vakue

I recommend this product has 5 star quality. Boss AR 4000D the best.

love this amp

highly recommend this box had it for about 2 months now doesn't get hotI'm going to buy 2 more

This amp is amazing for what I payed for it I owned boss amplifiers in the past never has failed me

For the price, it delivers a sound you will be looking for. I had an existing amplifier that was rated 1100 watts peak and RMS 330. I could tell the difference real quick. I truly believe you will like this product once you give it a try. I am very happy with my purchase. Thank you Sonic

Great value

The price was incredible. And it pushes the 2 mofo 12s nicely. However I can only run amp half the power. If I turn bass knob past half way amp cuts out.

By Robert on January 11, 2018 Verified purchase

Nice amp!

I have one of these powering a Planet Audio Big Bang 1200watt DVC 4ohm sub. Because this is a one channel amp and using a DVC sub I have them running at 2ohms. So that's supposed to be 3000watts Max power. No specified rms at 2ohms. But it has plenty of power for my 600watt rms 1200watt max sub. This amp does not over power my sub and subwoofer sounds great! **note to buyers this amp used in a sub application uses Alot of power so I'd also recommend a power capacitor at least 3 farads.

Very good amp for the price!

I bought this amp to push 4xNVX VSW124v2 in my 2019 Charger. This amp pushes all 4 subs with ease. It looks good, it performs good. I've had this amp for a couple of months and it's yet to overheat (I do have good ventilation for the amp). This particular model from BOSS is really well made. I'd recommend it to anyone looking to add an amp without going broke in the process.

By Christopher on September 22, 2021 Verified purchase

Size/measurements are misleading

Purchased the amp primarily for the small size. Product says it is 5”. Pulled the amp from the box to start fitting it behind my Jack cover and the TRUE Measurement is 6 1/2”. Very misleading.

By Gabe on August 18, 2021 Verified purchase

Great value for the price

Greats pricing and I recommend for being a beginner stage system good amp doesn’t get hot

By Brandon on March 27, 2020 Verified purchase

Great amp

Good amp for price got it on to 10in p3,d4's punches....I kill to good amps on these speakers........this AMP doesn't overheat at all good quality for the price...... buying another one right now going put it on two p3 12in d2s punches...

Thumps my 4 kicker 12s

I have this amp on 4 kicker comp c 12s in a santa fe wired to 1ohm and this amp delivers more than enough power. Feels like a kid kickin the back of my seat.

Price was great

I'm pleased for what a I buy and highly recommend anyone to buy it sounds great thank you.

Sorry amps

I have bought 2 boss armor amps and I will not ever buy another one it is a sorry amps so don't waist your money

Awesome

Love this amp I always get boss amps great amps for great price

Bumpin

Amp pushes my 15vm audios real good. Got 4 15s with 4 boos 4000 amps to each sub & it hits nice & hard

Boss ar4000d

I listen to this daily and love every bit of what I hear.

Great amp kit

It has all items needed to wire up an amp

By dusty on March 21, 2026 Verified purchase

Meh

Was cheap so expectations were low, it is extremely low quality. I would personally not recommend to anyone.

By Zach on April 9, 2025 Verified purchase

Boss AR4000D

Great price for quality product. Expectations are meet however, I'm satisfied. I would recommend it to those on my level. I will spend more money with sonic electronics.

Almost 1500 RMS @ 1ohm!!

It's been tested guys with a SMD Dyno on BdWiz channel it did almost 1500 rms @ 1 ohm..wow!! and this price you can't beat that!!
also Boss Audio shall name this amp (AR-1500.1D) not "AR4000"
Warning: don't try to put it @ 0.5 or 0.8 ohms don't like it this amp it goes..PROTECT!!

the product i need when i need it .

it runs 8 speakers for me anddo a very good job.

By tharon on December 31, 2016 Verified purchase

boss ftw!

Running this amp on 2 bb12's in a 4cu. Ft. Aero ported box and it is a trooper!!! I slam to and back from work which is 100 miles round trip and has never overheated or gave me any problems! Wouldn't say it's pushing the power it's rated at but is close! Recommend this budget amp any day!

BOSS AR4000d

The BOSS AR 4000d is well under rated!! I've hooked it up to my 15"L7 @ 2ohms and was literally blown away!! I know stereo equipment better than a lot of car stereo dealers, I've been hookin up my own systems since I was 15 yrs old and I'm 36 yrs old today!! And still doing it but the Boss AR 4000d and the price shoulda been around in my younger days LOL!!! This Amp in my opinion is well recommended 🌟🌟🌟🌟🌟 thanks to SONIC ELECTRONICS for the hook up!! 👍🏼👍🏼👍🏼👍🏼👍🏼

Boss AR4000D

Good amp for the price if your on a budget

By Dewan on January 18, 2017 Verified purchase

Great Amp

I performed a lot of research (reading customer reviews) and comparing power/value. I am extremely happy with it. I am driving two 12" subs and it has been powering them without any issues for two months.