***UPDATE 8/4/18***
I went mudding a week ago and accidentally sank my jeep in a pond 🙃 Completely flooded the floor of my interior and soaked the amp, luckily it was off. A couple days later I ripped the entire interior out and washed it out really good, like literally washed the inside of my jeep with a hose. I figured the amp had already been soaked what more harm could I do. Got everything back together after drying out, fired up the jeep, turned the stereo on and BAM! Perfect sound quality. If it can get soaked twice and still work I think that says something.
*end of update*
Did you know, that running your power lead in close proximity to your audio cables can cause loss of sound clarity, distortion, and you guessed it, alternator whine?! I’ve had to fix plenty of botched installs due to this. I did a little test and ran my audio cables directly next to my 4g power lead going to both my amps. Heavy whine and almost no signal clarity. Re routed my cables to run on the opposite side of my power lead and wow! Signal was clear, bassy, and no alternator whine.
This amp is phenomenal and woke up the old Bose speakers I pulled out of a 2001 Pontiac GTP (2ohms at 50 watts RMS, give or take). I drive a Jeep Wrangler TJ and space is precious, so I can’t have big amps and fancy subs. This fit under my driver seat perfectly and cranks some serious audio to my speakers, even with the top down. Great price for a quality low budget system and I get lots of compliments from friends. GREAT AMP!!!
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From the manufacturer
Get clear sound on the trails with the BOSS Audio Systems R1004 4 Channel Class A/B Amplifier.
With 400 Watts Max Power and MOSFET power supply, this 2-Ohm Amplifier gives your music a boost.
Amplifiers in the Riot Series are perfect for first time car audio buyers looking for enhanced sound and performance for their system.
- Class A/B, MOSFET power supply
- Full range, Fuse quantity (1) 15-amp ATO blade
- 100 watts @2-ohms x 4 max, 50 watts @4-ohms x 4 max
- High and low level inputs, soft turn on circuit
- Thermal overload speaker and short protection
- Power and protection LEDs, variable input gain control
- Speaker impedance 2–8 ohms, THD @ RMS output ˂0.01%
- Channel separation 60 dB, S/N Ratio 90 dB, frequency 12 Hz–22 kHz
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MOSFET Power SupplyMetal Oxide Semiconductor Field-Effect Transistors quickly switch from full to non-conduction for high efficiency output. |
Class A/BOur Class-A/B amplifiers feature specific linear circuitry that increases sound quality and power output while reducing distortion and improving efficiency. |
2 Ohm Stable2-Ohm stable comfortably powers speakers or subwoofers when in use at 2-Ohms, resulting in more power and volume. |
Variable Gain ControlThe Variable Input Control allows the amplifier input to match the output signal from the head unit to achieve optimum performance when adjusted properly. |
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| R4004 | R3004 | R2504 | R1004 | |
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| Customer Reviews |
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| Price | — | — | — | $60.89 |
| Channels | 4 | 4 | 4 | 4 |
| Bridgeable | Yes | Yes | Yes | No |
| Max Power | 1600W | 1200W | 1000W | 400W |
| Low Pass Filter | Variable | Variable | Variable | No |
| High Pass Filter | Fixed | Fixed | Fixed | No |
| Bass Boost | Yes | Yes | Yes | No |
| Remote Subwoofer Control | Yes | Yes | Yes | No |
| Inputs | High and Low Level | High and Low Level | High and Low Level | High and Low Level |
| Dimensions | L15.44" x W10.44" x H2.25" | L12.28" x W10.44" x H2.25" | L10.72" x W10.44" x H2.25" | L7.75" x W9" x H2" |
Compare with similar items
This Item  BOSS Audio Systems R1004 Riot Series Car Amplifier - 400 High Output, 4 Channel, 2/8 Ohm, High/Low Level Inputs, Full Range, Hook Up to Stereo and Subwoofer, Class A/B, IC (Integrated Circuit) |  |  |  |  |  | |
| Price | -37% $53.57 List: $84.95 | $59.99 | $69.95 | $68.99 | $24.95 | $79.00 |
| Delivery | Get it as soon as Monday, May 13 | Get it as soon as Tuesday, May 14 | Get it May 10 - 14 | Get it as soon as Wednesday, May 15 | — | Get it as soon as Tuesday, May 14 |
| Customer Ratings | ||||||
| Easy to install | ||||||
| Value for money | ||||||
| Sound quality | ||||||
| Volume control | ||||||
| Remote Control | ||||||
| Sold By | Speece, Inc. | SHOPPING MUNDI USA LLC | Big Jeff Online Inc | Audio Watt Store | DS18 | PSB Retail |
| number of channels | 4 | 4 | — | 4 | 2 | 4 |
| voltage | 16 volts | — | 12 volts | — | — | 16 volts |
| mounting type | Car Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
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BOSS Audio Systems R1004 Riot Series Car Amplifier
Speece, Inc.
Reviews with images
Don't expect the best amp you'll ever buy. But, for the price, it's a fantastic option...
This unit is clearly not intended to push anything more than a few door speakers. So many people having issues with the amp, and it appears that many of them are using it incorrectly. This is not meant to be bridged and used to power a subwoofer. It is intended to be used to give your door speakers a little boost over the stock amp in your head unit.I also read a lot of reviews about there being a lot of engine noise. I had this issue as well. A couple of things usually cause this issue:1) A bad ground, causing the head unit to send a bad signal to the amp (tested this by hooking up my phone directly to the amp, and getting no interference) - can also occur if the head unit is cheap, a.k.a "Dual".2) Gain set too highI fixed these issues by setting my gain just low enough that I couldn't hear any more engine whine, and by installing an in-line ground loop isolator. After that, it was all about setting up my head unit to put out as much sound as I could get it to.Once I got everything set up, and replaced my cheapo Dual head unit with a Pioneer, I was able to tune the sound to get the amp to push my door speakers as loud as it could. To avoid distortion, I used the crossover setting in my head unit to take out all the bass from the door speakers. I have two 12s in the back that easily fill this lack of bass in, giving me a really good and loud sounding setup. I couldn't be happier, so long as the amp lasts.Don't expect this thing to be the best amp you'll ever buy. It isn't. But, for the price, it's a fantastic option to get more out of your aftermarket door speakers.
Top reviews from the United States
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Reviewed in the United States on July 2, 2018
Style: 400W 4 ChannelVerified Purchase
***UPDATE 8/4/18***
I went mudding a week ago and accidentally sank my jeep in a pond 🙃 Completely flooded the floor of my interior and soaked the amp, luckily it was off. A couple days later I ripped the entire interior out and washed it out really good, like literally washed the inside of my jeep with a hose. I figured the amp had already been soaked what more harm could I do. Got everything back together after drying out, fired up the jeep, turned the stereo on and BAM! Perfect sound quality. If it can get soaked twice and still work I think that says something.
*end of update*
Did you know, that running your power lead in close proximity to your audio cables can cause loss of sound clarity, distortion, and you guessed it, alternator whine?! I’ve had to fix plenty of botched installs due to this. I did a little test and ran my audio cables directly next to my 4g power lead going to both my amps. Heavy whine and almost no signal clarity. Re routed my cables to run on the opposite side of my power lead and wow! Signal was clear, bassy, and no alternator whine.
This amp is phenomenal and woke up the old Bose speakers I pulled out of a 2001 Pontiac GTP (2ohms at 50 watts RMS, give or take). I drive a Jeep Wrangler TJ and space is precious, so I can’t have big amps and fancy subs. This fit under my driver seat perfectly and cranks some serious audio to my speakers, even with the top down. Great price for a quality low budget system and I get lots of compliments from friends. GREAT AMP!!!
I went mudding a week ago and accidentally sank my jeep in a pond 🙃 Completely flooded the floor of my interior and soaked the amp, luckily it was off. A couple days later I ripped the entire interior out and washed it out really good, like literally washed the inside of my jeep with a hose. I figured the amp had already been soaked what more harm could I do. Got everything back together after drying out, fired up the jeep, turned the stereo on and BAM! Perfect sound quality. If it can get soaked twice and still work I think that says something.
*end of update*
Did you know, that running your power lead in close proximity to your audio cables can cause loss of sound clarity, distortion, and you guessed it, alternator whine?! I’ve had to fix plenty of botched installs due to this. I did a little test and ran my audio cables directly next to my 4g power lead going to both my amps. Heavy whine and almost no signal clarity. Re routed my cables to run on the opposite side of my power lead and wow! Signal was clear, bassy, and no alternator whine.
This amp is phenomenal and woke up the old Bose speakers I pulled out of a 2001 Pontiac GTP (2ohms at 50 watts RMS, give or take). I drive a Jeep Wrangler TJ and space is precious, so I can’t have big amps and fancy subs. This fit under my driver seat perfectly and cranks some serious audio to my speakers, even with the top down. Great price for a quality low budget system and I get lots of compliments from friends. GREAT AMP!!!
Images in this review
Reviewed in the United States on March 25, 2023
Style: 400W 4 ChannelVerified Purchase
Perfect for hearing music over big twin Harley
Reviewed in the United States on March 25, 2023
Purchased this amp to push two saddlebag lid 6x9's and 2 boss audio handlebar speakers. Already had BOSS Audio Systems MC900B 500 watt Bluetooth 4 channel handle bar with lighted Remote it just didn't have enough to push the 6x9's . Cut 1/4 inch black plexiglass and mounted both amps then wired it all into deutsch plugs so it can all be easily removed .used longer screws and nuts on the saddlebag latches to mount the plexiglass . It sounds amazing it is obnoxiously Loud at standstill when riding at 70 you can clearly hear the music. Only have gain quarter way on handlebar speakers and almost half on 6x9's. would not play music unless engine is running probably drain battery pretty quickly. 100% would recommend.
Reviewed in the United States on March 25, 2023
Images in this review
Top reviews from other countries
Roberto Isa Cantillo
Potencia
Reviewed in Mexico on October 2, 2023Style: 800W 2 ChannelVerified Purchase
Bob Hamilton
Works as advertised!
Reviewed in Canada on September 14, 2023Style: 400W 4 ChannelVerified Purchase
The Meat
Awesome amp, sound great, loud enough without making you a heat score
Reviewed in Canada on October 29, 2020