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Boss Audio Systems R1004 400W 4-Channel Car Amplifier

4.23151 product ratings

SpeeceInc (10062)
98.5% positive feedback

Price:

$51.99

Free shipping

Estimated delivery Thu, May 16 - Sat, May 18

Returns:

30 days returns. Seller pays for return shipping.

Condition:

New

Get clear sound on the trails with the BOSS Audio Systems R1004 4 Channel Class A/B Amplifier. 2 Ohm Stable. Our Class-A/B amplifiers feature specific linear circuitry that increases sound quality and power output while reducing distortion and improving efficiency.

About this product

Product Identifiers

Brand
BOSS Audio
MPN
R1004
UPC
0791489115254
Model
R1004
eBay Product ID (ePID)
112062167

Product Key Features

RMS Power
400W
Channels
4

Additional Product Features

Amplifier Type
Multi Channels
Bridgeable
Not Bridgable
3 Way Ready
No
Brand Site
Http:/Www.BOSS AUDIO SYSTEMS.Com/Auto/R1004/
Frequency Response
12Hz-0.022Hz
MOSFET Circuitry
Yes

All listings for this product

item 1 BOSS Audio Systems R1004 400 W 4 Ch Car Amplifier - 2-8 Ohm, Integrated Circuit
$51.99
Free shipping
item 2 Boss Audio Systems R1004 Power Amplifier, 4 Channel , 400 Watts, Full Range A/B
$39.99
+$14.99 shipping
item 3 BOSS Audio R1004 Riot 400W 4-Channel Class A/B Car Audio High Power Amplifier
$60.99
Free shipping
item 4 New BOSS AUDIO Riot R1004 Mosfet 400 Watt RMS 4 Channel Car Power Amplifier Amp
$66.99
Almost goneFree shipping
item 5 4 Channel Power Supply And Speaker System w/ 5-High Performance Amplifier Lines
$83.98
Free shipping
item 6 BOSS Audio Systems R1004 Riot Series Car 400 watt 4 channel class A/B, Black
$84.68
Free shipping
item 7 BOSS Audio Systems R1004 Riot Series Car Amplifier - 400 High Output, 4 Black
$99.83
Free shipping

See all 11

4.2

4.2 out of 5 stars based on 151 product ratings

151 product ratings

94 users rated this 5 out of 5 stars
31 users rated this 4 out of 5 stars
7 users rated this 3 out of 5 stars
4 users rated this 2 out of 5 stars
15 users rated this 1 out of 5 stars

Good sound quality

Good value

Small form factor

Most relevant reviews

See all 111 reviews

4 out of 5 stars
by xrilanderApr 13, 2021
Top favorable review
Works just fine with 2v preouts.
Like others have described, engine whine is an issue with this unit. I added 2-20 amp RCA ground loop isolators to fix the issue (an additional $20). I`m using all 4 channels (no sub) to power 4 Blaupunkt 4 way 6x8`s (4ohm) in my 2005 Taurus. New 14 gauge speaker wire throughout, with 10 gauge power/ground wires. Amp is mounted under the passenger side seat, runs cool at any volume. Head unit is a 2010 Pioneer DEH 5300HD with 2v pre out voltage. Gain is set to 3/4, and there is no distortion, even with the 2v pre outs. Strong bass, crisp highs. Terrific bargain unit!
Verified purchase: Yes | Condition: New
2 out of 5 stars
by 2wheelsrenufAug 27, 2017
Top critical review
Sounds great, if your car is not running...
I got this all installed and it sounded great. Easy to install even using the high level inputs. However the trouble began as soon as I started the car. I could hear (loudly) everything the car was doing electrically. Radiator fan, alternator, ignition, power windows, turn signals, everything. I went through all of the usual grounding checks and even went so far as to ground the amp, head unit, and antenna to the battery. Nothing helped. I'll be looking for a new amp. Anyone want to buy a Boss R1004 with less than an hour of run time on it!?!?
Verified purchase: Yes | Condition: New
5 out of 5 stars
by savedbygrace168...Dec 29, 2017
Excellent
This may be a cheap amp with zero crossovers but it is an excellent entry level amp if you understand frequency responses and such. I measured this amp on a dyno and at 13.9v and 4v into the low level preouts I am getting 41 watts by 4 at 4ohms with the gain at 3/4. THD is 0.01 at 3/4 gain and S/N Ratio is a true 96db at 1 watt. That is fantastic specs for such a cheap amplifier. Highly recommend if you're looking for a little extra power on a small system. I'm using this amp to run 6 1/2. two ways and 6x9 3 ways. Very loud and clean. Just don't expect clean signal much passed 3/4 gain. That's the distortion threshold. If your headunit only has 2v preouts, don't bother getting this amp because without clean audio voltage it will distort at less than half gain. Hope this helps. I'm a sound engineer and own my own stereo shop so I understand the specs.Read full review
Verified purchase: Yes | Condition: New
4 out of 5 stars
by czfIKQNNTl-@Del...Aug 10, 2016
Great amplifier love it (not for high powered speakers)
This is a great amplifier if you are looking for some little things.....like i powered my bullet tweeters and front 6s.. Although had problems with engine noises but got rid of it, really happy how my car audio sound more great than before love it
Verified purchase: Yes | Condition: New
1 out of 5 stars
by tw5tdfeatr5Nov 12, 2018
4 channel Boss Riot 400 watt amp
I bought it on ebay. It's not the sellers fault it was a brand new Boss 4 Channel Amp that cost $35 I wasn't expecting window shattering music. I was however expecting to be able to listen to music louder than my pioneer stereo puts out. I hooked up the amp with the truck off it sounded great I was very shortly excited. As soon as I started the truck with no music playing the horrible noise this amp doesn't filter out is unbelievable for an amp made in 2018. I have been installing systems for years and knew I was buying literally the cheapest not from walmart amp I could. I regret not spending a few extra $$ and buying a good 4 channel amp. I immediately took it out of the truck and I am in search of a good cea compliant amp. You get what you pay for.
Verified purchase: Yes | Condition: New

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Picture 1 of 6

Boss Audio Systems R1004 400W 4-Channel Car Amplifier

About this product

Product Identifiers

Product Key Features

Additional Product Features

All listings for this product

Ratings and Reviews

Most relevant reviews

Works just fine with 2v preouts.

Sounds great, if your car is not running...

Excellent

Great amplifier love it (not for high powered speakers)

4 channel Boss Riot 400 watt amp

Best Selling in Car Amplifiers

Save on Car Amplifiers

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