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Skar Audio

Skar Audio RP-4500.1D Monoblock Class D MOSFET Amplifier with Remote Subwoofer Level Control, 4500W

    • Based on 1,118 reviews
Condition: Used - Acceptable
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This item's return window has been extended for the holiday season: Returnable until Jan 31, 2025

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Availability: In Stock.
Fulfilled by SKAR AUDIO
Arrives Nov 25 – Nov 29
Order within 3 hours and 25 minutes
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Size: 4500 Watt Class D Monoblock


Features

  • Competition Grade Class D MOSFET Monoblock Power Amplifier
  • Peak Power at 1 Ohm: 7, 000 Watts | RMS Power at 1 Ohm: 4, 500 Watts
  • Stable at 1 ohm | Remote Subwoofer Level Control Included
  • Frequency Response: 20Hz - 250Hz, On-board Bass Boost Control 0-9dB
  • Featuring 4-Way Protection Circuitry and 1/0 AWG Power & Ground Input Terminals for Maximum Current Flow

Description

Skar Audio engineered the RP-4500.1D Class D monoblock subwoofer amplifier to be dominant in both power and reliability compared to anything else on the market in its' class. Designing the most efficient, well built, high quality amplifiers is where we start here at Skar Audio, and that is exactly what is delivered in the RP-4500.1D. This amplifier is competition grade and for the most serious audiophiles seeking extreme levels of power output. The RP-4500.1D is 1-ohm stable and utilizes a wide array premium internal components that make it extremely powerful and reliable - such as its high speed MOSFET power supply and advanced PCB board layout. Conservatively rated at 4,500 watts RMS power at a 1-ohm load, with the capabilities of reaching beyond 7,000 watts at max power output. This amplifier is by far one of the most affordable and powerful competition grade monoblocks on the market when priced per watt, and will exceed your expectations when you hear it bring your subwoofers alive. Furthermore, the oversized 1/0-gauge power and ground terminals found on the amplifier allow for maximum current flow and therefore higher power output and more efficient operation. You'll have full reign over your amplifier with the built-in user control panel, featuring variable adjustment tunings for gain level, bass EQ (0-9 dB), subsonic filter (10-50 Hz), low-pass filter (35-250 Hz), and phase filter (0-180 Degrees). In addition to all the above features, this model also features 4-way protection circuitry, which will give the user the peace of mind knowing they are protected against damage to the amplifier for various reasons - including electrical shortage, overheating, low voltage, and more. This amplifier comes with a remote subwoofer level control (bass knob) allowing the user to have full control over their bass from the front of the vehicle. Present on the RP-4500.1D as well are both input and output RCA connections, allowing the source signal to be daisy chained between multiple amplifiers. The RP-4500.1D is also strappable, featuring an output master/slave input switch.

Item dimensions L x W x H: 22.05 x 8.27 x 2.44 inches


Manufacturer: Skar Audio


Mounting Type: Surface Mount


Brand: Skar Audio


Number of Channels: 2


Item dimensions L x W x H: 22.05 x 8.27 x 2.44 inches


Manufacturer: Skar Audio


Mounting Type: Surface Mount


Brand: Skar Audio


Number of Channels: 2


Output Power: 4.5E+3 Watts


Specification Met: [Inferred Fcc, Possibly Others]


Material: Metal


Global Trade Identification Number: 57


UPC: 011922308457


Product Dimensions: 22.05 x 8.27 x 2.44 inches


Item Weight: 20.2 pounds


Item model number: RP-4500.1D


Is Discontinued By Manufacturer: No


Date First Available: December 13, 2017


Country of Origin: China


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Nov 25 – Nov 29

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Great little amp
Size: 350 Watt Class D Monoblock
This thing is a great value. I paired it with a skar svd8 inch subwoofer and it sounds awesome. It performs very well for a small amp and has plenty of power to push the little 8 inch sub. I haven't noticed it getting hot or anything and haven't had any issues with any distortion or it going into protect mode so overall I am super happy with it. It's small and compact and doesn't weigh much at all so that's a plus too. ... show more
Reviewed in the United States on June 14, 2024 by MrDiY614
    • If sound changes check filters
Size: 1000 Watt Class A/B Four Channel
It worked great until one morning the sound was massively distorted and there was a huge amount of bass coming over the speakers. Finally figured out the hi pass filters had failed. Turned filters off and sound was great again. Unfortunately without the filters active the sound is wrong for door speakers. ... show more
Reviewed in the United States on October 21, 2024 by Ron Moore
    • Awesome amp!!!
Size: 350 Watt Class D Monoblock
Product fit exactly where I needed it to!
Reviewed in the United States on November 7, 2024 by The amp is absolutely wonderful. It works perfect on a 2016 Street Glide special under the fairing.!
    • Great underrated Amplifier
Size: 4500 Watt Class D Monoblock
Review Image by Tyler Tyler
After using only Sundown products for the last 7 years, it came a time when I wanted to build a budget build and Sundown was not in it. For years i've seen the massive amount of what I will now call 'propaganda' against this company which said it's products were terrible. Not only is that untrue, my experience is 100% the opposite in my limited time with it. The RP-4500 is as powerful as you would expect a 4500w rms amplifier to be, it has lots of power. For an amplifier that does not include an internal fan to keep cool, the beefy heatsink does a wonderful job even in hot sun of keeping the amp within temp on near clipping load for over an hour. Sound quality wise it is no different than the most expensive sundown amplifiers or the least expensive down4sound amplifiers, in my experience. Budget wise it provides one of the best price per watt ratios in the amp market right now. Very happy with this purchase. What I think could make this board better would be to include a clip indicator knob and maybe a cooling fan. A foam gasket around the back panel of the amplifier would be great to reduce vibration induced noise/rattle. Sundown audio amplifiers for example include this gasketing. ... show more
Reviewed in the United States on June 10, 2023 by Tyler Tyler
    • Not a bad little amp
Size: 350 Watt Class D Monoblock
Needed a small amp to go with a Pioneer 12" for my wife's car. It's the same sub I have in my car, both in sealed boxes, but I have a Kicker 300.1 amp in mine. This amp is small compared to the Kicker. About 1/3 the size. The bigger terminals don't like smaller wire, so I had to fold the ends over and solder them even on the remote turn-on wire. Don't get me wrong, it puts out plenty of thump, especially for the money. But it's not quite as crisp and doesn't hit as hard as the Kicker. I mean, I was able to rattle the windows in the house with some DJ Magic Mike. Everyone came out of the house when it was cranked. Just those lows are missing some life. At the same time, playing some death metal hits hard but like I said, it's missing that crispness. When tuned, there's no distortion muddling the sound. If you just want to add some bass that you can feel and sounds decent, it's a great little amp. But it's also not a high quality audiophile amp if that's what you want. I'll give it four stars only because it's not a five star amp. Outside of that, nothing would stop me from recommending it to someone. ... show more
Reviewed in the United States on May 11, 2024 by sudsycloud454
    • Quality
Size: 4500 Watt Class D Monoblock
I recently acquired this amplifier, and I am impressed by its high-quality construction. The sound output and power delivery are exceptional.
Reviewed in the United States on October 24, 2024 by Christopher Wallace
    • Looks pretty but that's about it
Size: 350 Watt Class D Monoblock
Wired it up via skars Instructions to a new12" 400 watt rms skar tube and got nothing but a blue light, made sure I had good connections and tried different inputs but got nothing, tried out a spare amp and sub on the same wiring and worked perfectly, will be sending this amp back for a new one of the same model and will update if it ends up just being something wrong with this particular amp. Update: the issue was the amp itself, they sent me a new one and it worked fine with the same setup and I'd say it's well worth the money. ... show more
Reviewed in the United States on April 15, 2024 by Brayden greene
    • POS do not waste your time or money
Size: 4500 Watt Class D Monoblock
If I could give zero stars I would this is the biggest waste of money I have ever spent I bought this hoping I could get more watts to my 2 12’s and door speakers in my truck I already have a working planet audio it’s just underpowered so I got the 4500 watt and I plugged everything into the skar and wouldn’t even power on not even protection mode nothing nothing at all so I thought I had messed something up so I plugged back into my planet audio and everything works just fine ... show more
Reviewed in the United States on August 11, 2024 by Bryar

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