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  • Boss Audio R1004 4-Channel Mosfet Power Amplifier
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Boss Audio R1004 4-Channel Mosfet Power Amplifier

by BOSS
| 7 answered questions

List Price: $84.00
Price: $36.35 & FREE Shipping. Details
You Save: $47.65 (57%)
Only 19 left in stock (more on the way).
Ships from and sold by Amazon.com. Gift-wrap available.
400-watt
  • 100 Watt, 4-Channel
  • Remote Subwoofer Level Control
  • 4-Channel
  • This Item is NON Returnable.
See more product details
21 new from $31.88 1 used from $34.95

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Style: 400-watt
  • Buy Used and Save: Buy a Used "Boss Audio R1004 4-Channel Mosfet Power Amplifier" and save 58% off the $84.00 list price. Buy with confidence as the condition of this item and its timely delivery are guaranteed under the "Amazon A-to-z Guarantee". See all Used offers.

Frequently Bought Together

Boss Audio R1004 4-Channel Mosfet Power Amplifier + BOSS Audio KIT2 8 Gauge Amplifier Installation Kit + BOSS Audio R1100M Riot 1100-watts Monoblock Class A/B 1 Channel 2-8 Ohm Stable Amplifier with Remote Subwoofer Level Control
Price for all three: $102.76

Buy the selected items together

Product Information

Style: 400-watt
Technical Details
Item Weight3.5 pounds
Product Dimensions11 x 9.6 x 3.4 inches
Item model numberR1004
Wireless RemoteYes
ExpansioniPod cable optional
Weight3.7 Pounds
  
Additional Information
ASINB004S50ZDA
Best Sellers Rank #4,415 in Electronics (See top 100)
Shipping Weight3.6 pounds (View shipping rates and policies)
ShippingCurrently, item can be shipped only within the U.S.
Date First AvailableMarch 15, 2011
  
Warranty & Support
Warranty, Parts: Parts
Feedback
 


Technical Details

Style: 400-watt
  • Brand Name: BOSS
  • Model: R1004

Product Description

Style: 400-watt

Line Level And Speaker Level Inputs

There are two different ways that you can get a signal into the R1004: high and low level input. Low level input is measured in voltages and comes in the form of RCA outputs from the back of your receiver, going to the RCA inputs on your amplifier. High level input is measure in wattages, and comes in the form of one positive and one negative wire from the back of your receiver, going to the input terminal of your amplifier in the same wire form. Low-level (RCA) input wiring is preferred for best audio performance. Always use a high-quality RCA cable for the best audio performance. NOTE: Do not connect both the high and low level inputs from your receiver to your amplifier at the same time.

Variable Gain Control

Properly setting the gain on your amplifier is key to getting great sound in your car. The gain control is not for adjusting volume - it simply adjusts the amount of signal that is coming from your receiver and going to your amplifier. If you set it too high, you are introducing distortion into the sound, but if you set it too low, you are choking back on what the amplifier is there to do in the first place. A technique that works on most amplifiers involves first turning the amplifier’s gain all the way down. Turn on some music and turn up the stereo's volume until you hear distortion. Then turn it down until the distortion goes away. Go to your amplifier and turn the gain up until the distortion comes back, and once more back off until the distortion goes away.

General Features
  • 2 Ohm stable stereo operation with output power increase
  • Thermal, overload, and speaker short protection
  • Soft turn-on circuit
  • Remote turn on / off circuit
  • Nickel plated RCA low level and high level inputs
  • LED power and protection indicators
  • black anodized heatsink
What Comes In The Box?
  • Remote subwoofer level control
  • High input cable with connector
  • Instruction manual
  • Mounting screws

Customer Questions & Answers

Customer Reviews

I honestly don't see much difference.
Mr. KIKIN
This thing puts out so much alternator whirring noise, that you can't even hear the music!
Harley Canine
I know Boss is a very know and good brand in our Country.
Guillermo

Most Helpful Customer Reviews

23 of 24 people found the following review helpful By James O'Connell on July 10, 2011
Style Name: 400-watt Verified Purchase
Exactly what it says. You get what you pay for. I knew I was buying a cheap amp when I bought it. Don't go into it expecting $500 sound. It puts out it's rated power...sort of.

They DO tell you the true RMS @ _ Ohm ratings of it in the manual and fine print but the packaging and box does the usual flea market audio trick...you know, the whole overrating the power output. Throwing 15000 Watts at you for $30...Yeah, that thing.

I would NEVER use this with a woofer of any kind. It does a noticeably better job than my Alpine headunit for powering the front and rear speakers but that's about all I would recommend doing with it. The amp performs well under a seat and I haven't noticed it getting unusually hot or any cut outs. It's quite small which is nice for tight fits. It's comparable in size to a typical factory amp.

I did notice that Amazon claims it has a remote subwoofer level control... Well, I didn't notice anything like that in the box. Not a big loss.

At the end of the day, it's a $30 amp. It'll do a better job powering your mids than your headunit or factory amp but that's all it's good for. Good little amp for the money. Nothing more. Nothing less.
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14 of 15 people found the following review helpful By casinoreverend on December 13, 2011
Style Name: 400-watt Verified Purchase
I bought this little amp that could on an impulse due primarily to the low, low price of $40.00! I should have trusted my first instinct that no amp is ever sold for 40.00 bucks, what you get is a nicely marketed, fairly good looking paper-weight. This amp has one good review, maybe I was unlucky and received an amp that was defective but that's not likely. What I received was an amp that once installed, sounded WORSE than the cheap Pioneer head unit I am running in my truck. I tried everything, switching speaker wires, triple-checked all my connections and so forth. I plugged the same speakers into my 600W Sony Explode Amp and they sound fine, switch the speakers back to this BOSS amp and what I hear is a horribly under-powered, muffled tone. Thank goodness Amazon has a nice return policy and I quickly requested full refund.
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The manufacturer commented on this review(What's this?)
December 16, 2011
Thank you for your purchase of Boss Audio Product. Im sorry to hear that you are having a problem with you Boss Audio Amplifier. Please contact our Technical Support Line (805) 751.4853 so that we may further assist you. We appreciate your business as a valued Boss Audio Customer.
6 of 6 people found the following review helpful By ADRIAN on August 7, 2013
Style Name: 400-watt Verified Purchase
I USE THIS AMP TO DRIVE 8 SPEAKERS, 2 6X9 AND 6 6.5 ROUND. EACH SPEAKER IS RATED AT 50 - 80 WATTS RMS. ITS USED AS MY VOCALS AND TYMPANI DRIVER. FOR THIS WHEN COMBINED WITH 1X8" AND 2X12" AT 1000 WATTS FROM SUB AMP. I HAVE RUMBLE BUMP THUMP AND I CAN STILL CLEARLY UNDERSTAND THE LYRICS. THE DECIBLE RANGE MAKES IT A PERFECT MATCH FOR MY SUBS.
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2 of 2 people found the following review helpful By Cee on August 18, 2013
Style Name: 400-watt Verified Purchase
Not all the channels work on the amp loud humming sound from the amp so not happy with this product
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2 of 2 people found the following review helpful By GatorMan on September 15, 2011
Style Name: 1000-watt Verified Purchase
Good Sound and Good Power - Excellent price - helps fill a vehicle whose factory radio does not fill the bill. But do not expect this to rattle windows. Not a bad deal.
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1 of 1 people found the following review helpful By eric on February 22, 2014
Style Name: 400-watt
Bought mainly for price and i didnt need anything to powerful for one older 12 rated at 550 max hooked to factory stereo in 99 jeep works great no issues fully cranked and has been for awhile id recomend to anyone on a budget that just wants more bass in there car i think it was worth it but its not my old school orion ifyou want big bass this isnt the amp for you
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1 of 1 people found the following review helpful By jon on February 1, 2014
Style Name: 400-watt
Worst amp ever horrible feedback noise tried everything to get rid of noise it's just terrible buzz do yourself a favor don't buy it
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1 of 1 people found the following review helpful By UncleBobbyBee on February 5, 2013
Style Name: 400-watt Verified Purchase
I got this amp about a week ago. It's get a ton of radio interference. I've tried everything to get rid of it with the exception of replacing it. It's not terrible for the price though. Can't really complain.
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