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Boss NXD4500

4500W Max Onyx Series Class D Monoblock Power Amplifier with Remote Level Control

  • 4.3

(7 reviews)

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$309.99

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$136.99

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Find the right amplifier for your subwoofers
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Customer Testimonial

So far so good... Willing to go a little extra to get the job done !

- Nnf000 from Boston

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  • Onyx Series Monoblock Class D Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 2100 watts x 1 chan.
  • Max Power Rating:
    • 2 ohms: 3500 watts x 1 chan.
    • 1 ohm: 4500 watts x 1 chan.
  • MOSFET PWM Power supply
  • Remote subwoofer level control
  • LED power and protection indicators
  • Variable 0 to +18dB Bass boost
  • Thermal, overload and speaker short protection
  • Soft turn-on circuit
  • Remote turn-on/turn-off circuit
  • Variable gain controls
  • Line and speaker level inputs
  • Input voltage sensitivity selector
  • 0/180-degree Phase shift selector
  • Heavy duty black anodized heatsink
  • Nickel-plated RCA level inputs
  • Nickel-plated terminals
  • Variable subsonic filter (15-45 Hz, 12 dB/octave)
  • Variable low-pass filter (45-90 Hz, 12 dB/octave)
  • Dimensions: 15-1/4"L x 10"W x 2-3/16"H
  • 4-gauge power and ground wiring is required for installation. Contact us for information regarding a discount on select amplifier kits when purchased together with this amplifier.
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty
Power Specifications - Subwoofer Channel
RMS Power @ 4 ohms 2100 watts x 1 channels
RMS Power @ 2 ohms Not Specified
RMS Power @ 1 ohm Not Stable
Peak Power Output 4500 watts x 1 channels
Amplifier Specifications
Amplifier Class D
Number of Channels 1 - Mono
Total Peak Power Output 4500 watts
Maximum Input Gauge Size 4 AWG
Minimum Impedance Unbridged 4 ohms
Minimum Impedance Bridged Not Bridgeable
THD at Rated RMS Power .01%
Speaker Level Inputs Yes
Built-in Crossover Low-pass (LP)
Low-Pass Crossover Frequency 45 - 90 Hz
Subsonic Filter 15 - 45 Hz
Signal-to-Noise Ratio 105 dB
Bass Boost 0 - 18 dB
Bass/Gain Remote Yes
Fan Cooled No
Fuse Rating 30A x 4 
CEA-2006 Compliant No
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration 1 year
Labor Warranty Duration 1 year
Warranty Provider Manufacturer
Customer Review Summary for Boss NXD4500
Average Customer Rating is 4.3 out of 5 stars:
  • 4.3
based on 7 Reviews
Share your thoughts with others:
Rating Distribution:
5 star:
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.
57%
4 star:
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14%
3 star:
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29%
2 star:
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0%
1 star:
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0%
what's this?
Average Attributes Rating:
Durability
  • 4.6
4.6
Value
  • 4.4
4.4
Features
  • 4.3
4.3
Design
  • 4.0
4.0
Usability
  • 4.1
4.1
what's this?
Quick Comparison:
Most Helpful Customer Reviews:
June 30, 2012 Good Deal
2 of 2 people found the following review helpful:
Review by
sticcs1 from riverside, ca
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 5.0
Design
  • 5.0
Usability
  • 5.0
At first after i heard that BOSS was a low end brand, i was a little skeptic when purchasing this amp. However, even though they are a little over rated, this amp is an excelent add on to my sound system. i have 3 rockford fosgate P3D412's hooked up to it at 2 ohms and they sound perfect. I was used to having a hifonics amplifier hooked up to 2 12" rockford fosgate HE subs, but this however is 100 times louder and rattles my frame. Boss may not be a top quality brand, but don't let peoples bad reviews fool you. When it comes to the ONYX series, you will be happy.
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November 30, 2012 Boss NXD4500
Review by
sound-maker from killeen, texas
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 3.0
Design
  • 4.0
Usability
  • 4.0
This amp is amazing. Just make sure that when you ground it to your vehicle that the ground is solid. Have no other problems. Keeps the bass going and no shorting.
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October 11, 2012 Boss 4500w Amp
Review by
ADrake from Wayland, MI
Overall
  • 4.0
Durability
  • 4.0
Value
  • 5.0
Features
  • 5.0
Design
  • 5.0
Usability
  • 3.0
It was a little difficult to learn to use, being as I'm a novice. But it hit harder than any amp I've ever owned. The only real drawback I found was that after about a month, it stopped working. I don't know what's wrong with it, but if I can fix it, I'm putting it in my truck. I mean, who needs their hearing?
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July 24, 2011 A little thump in your trunk
Review by
Big Bone from 1904, CA
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 5.0
Design
  • 4.0
Usability
  • 5.0
In the last few years I've owned about 4 different Boss amps and have NEVER had any problems with them Including this one. Whether or not Boss overrates their products remains to be seen. People who say they do, most likely have heard that from someone else who heard it from someone else who heard it from one of those people we like to call "know it all's". Not once have I read about someone actually putting it to the test themselves. Anyways, I bought this amp about a month ago and over all, I'm pretty happy with it. I currently have it pushing two 12" pioneer premier's (ts-w2000spl). I've had it running at 4 ohms and it was doing just fine and pushing my subs pretty hard; verified by multiple complaints from my wonderful neighbors. Yesterday, I wired my subs down to one ohm just because I wanted to see how much power I could squeeze out of this amp. I'm not sure yet if I'm going to leave it that way but we'll see. Needless to say, I almost blew my subs. It did get a little warm so I've decided to get a fan or two for it just to play it safe. All in all I WOULD definitely recommend this amp to anyone! The one and only complaint I have is that the level, the subsonic filter, bass boost etc.. are located at the bottom of the amp instead of on the sides, which in my case with the way I have it mounted, makes it hard to adjust any settings if need be. I did a lot of research and probably looked at just about every other high power amp out there for this price and I'm pretty confident that this amp is going to be the biggest bang you'll get for the money. If you're on a budget and are looking for something with a good balance between being cheap & reliable, go for it but by all means if you got the chetta get something betta!
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July 17, 2011 Alright but the usual issue.
Review by
Bryan from Olympia, WA
Overall
  • 3.0
Durability
  • 4.0
Value
  • 3.0
Features
  • 3.0
Design
  • 3.0
Usability
  • 3.0
This amp has a great price but I have noticed in the 6 months that I have had this as usual BOSS once again overrated this amp. 2100 RMS you say? It hits less hard than a 900 RMS kicker. It's decent but you can get better. Doesn't over heat and lasts.

I wouldn't recomend it since it is overrated. Spend the bit extra and get a quality amp.
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View All 7 Reviews for Boss NXD4500
Speaker Wire
Improve the sound quality by delivering more power when replacing your factory wiring. High quality speaker will maximize your amplifier investment and system performance.
  Product Price Add?
NVX XWS1625 Speaker Wire NVX XWS1625 Speaker Wire
25 ft. of True 16 Gauge 100% Copper EnvyFlex Speaker Cable/Wire
$16.99
Kicker XW1220 Speaker Wire Kicker XW1220 Speaker Wire
12 Gauge Wire - 20 ft. of Dual Twist Speaker Cable with Sleeves for a Clean Install
$39.95
StreetWires SCP1215BL - 12 AWG Speaker Wire StreetWires SCP1215BL - 12 AWG Speaker Wire
12 Gauge Wire - 15 ft. of Speaker Cable with Twisted Construction
$24.99
RCA Interconnects
You will need a good set of RCA interconnect cables to connect your amplifier to your head unit. Using high quality cables ensure the best sound possible by reducing unwanted noise interference, providing tight contacts, and utilizing the latest in cable technology.
  Product Price Add?
NVX XIV25 V-Series 2-Channel RCA Cable NVX XIV25 V-Series 2-Channel RCA Cable
16.4 ft of V-Series 2-Channel RCA Audio Premium Interconnect Cable with Dual Twisted Pair Hyper-Flex Technology
$13.99
Kicker Z-Series RCA Interconnect Cables Kicker Z-Series RCA Interconnect Cables
16.5 ft. of 2-Channel Kicker Interconnects with twisted pair conductors, gold plated contacts, and hyper-flex technology for easy installation!
$22.95
Installation, Tools & Accessories
With our professional install card, you can have your amp installed by a pro near you, or you can purchase tools and do the install yourself.
  Product Price Add?
StreetWires FB8 StreetWires FB8
8 Gauge Firewall Bushing
$4.99
Kicker DB1448 (09DB1448) - Top of the Line! Kicker DB1448 (09DB1448) - Top of the Line!
Distribution Block with Two 1/0 or 4 AWG Inputs and Four 4 or 8 AWG Outputs
$29.95
Professional Installation for your Car Power Amplifier Professional Installation for your Car Power Amplifier
Covers labor charges through our professional installer network.
$89.99
Testing and Performance
Optimize your system's performance with testing tools such as SPL meters, bass test discs and more!
  Product Price Add?
Scosche SPL Meter SPL1000F Scosche SPL Meter SPL1000F
Handheld boomSTICK measures your SPL range from 60 to 135 dB
$24.99
AutoSound 2000 CD-104 AutoSound 2000 CD-104
The ultimate amplifier level setting disc used for evaluation of audio components
$12.99
AutoSound 2000 CD-102 AutoSound 2000 CD-102
High Frequency Test CD specifically designed for the set-up and evaluation of sound system imaging and placement.
$12.99
AutoSound 2000 CD-103 AutoSound 2000 CD-103
Audiophile reference series test disc for evaluation of all audio components.
$12.99
Main Product
  Product Price Add?
Boss NXD4500 Boss NXD4500 $136.99

Product Summary

Manufacturer: Boss
Model number: NXD4500
UPC: 791489113717
Weight: 12.00 lbs
Internal SKU: nxd4500
Internal product ID: 23377