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🎵 Power your bass like a pro — feel the difference, own the streets!
The Skar Audio RP-4500.1D is a competition-grade Class D MOSFET monoblock amplifier delivering a massive 4500W RMS at 1 ohm and peak power up to 7000W. Engineered for serious audiophiles, it features advanced 4-way protection, oversized power terminals for maximum current flow, and a remote subwoofer level control for on-the-fly bass adjustments. With customizable EQ and filter settings, this amplifier offers precision tuning and unmatched reliability in a compact, surface-mount design.









| Asin | B0788B8YP9 |
| Best Sellers Rank | #1,453,892 in Electronics (See Top 100 in Electronics) #130 in Car Multichannel Amplifiers |
| Brand Name | Skar Audio |
| Customer Reviews | 4.5 4.5 out of 5 stars (141) 4.5 out of 5 stars |
| Global Trade Identification Number | 00011922308457 |
| Included Components | Bass Remote Knob and Wire Included, Skar Audio RP-4500.1D Monoblock Amplifier, User Manual |
| Item Dimensions | 56 x 21 x 6.2 Centimeters |
| Item Type Name | Car Amplifier |
| Item Weight | 9.19 kg |
| Manufacturer | Skar Audio |
| Material Type | Semiconductor |
| Maximum Output Power | 7000 watts |
| Model Number | RP-4500.1D |
| Mounting Type | Surface Mount |
| Number Of Channels | 1 |
| Number Of Items | 1 |
| Number Of Packs | 1 |
| Output Power | 4500 Watts |
| Package Type Name | Box |
| Part Number | 43217-166536 |
| Specification Met | [Inferred: Fcc, Possibly Others] |
| Unit Count | 1 Count |
| Upc | 011922308457 |
User
Great underrated Amplifier
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.
User
Very helpful
Good quality
User
Yes
Great power need another
User
Hits really hard
This amp is a beast
User
Insanity!
I like how loud and perfect this setup is, or any of my Skar setups for that matter. Just a beautiful thing. Bravo, Skar… BravoEdit: My 4500.1 is NOT mounted to the enclosure. I fabricated a bracket and it just floats there and stays cool. The 4 EVL 12’s must be getting broken in or something because it is getting even louder! I never even found the limit when I was tuning it. I just stopped when it started to hurt my ears and threw iced coffee on my dash because it was shaking so much in the cup holder. I haven’t even ported the enclosure yet! Good grief man. Peoples reactions when they get in and hear/feel it for the first time… priceless.
Trustpilot
5 days ago
2 weeks ago