--- product_id: 730707606 title: "Skar Audio RP-4500.1D Monoblock Class D MOSFET Amplifier with Remote Subwoofer Level Control, 4500W" brand: "skar audio" price: "¥451630" currency: JPY in_stock: true reviews_count: 5 category: "Skar Audio" url: https://www.desertcart.jp/products/730707606-skar-audio-rp-4500-1d-monoblock-class-d-mosfet-amplifier store_origin: JP region: Japan --- # 4500W RMS Power @ 1Ω 7,000W Peak Power Output Remote Subwoofer Level Control Skar Audio RP-4500.1D Monoblock Class D MOSFET Amplifier with Remote Subwoofer Level Control, 4500W **Brand:** skar audio **Price:** ¥451630 **Availability:** ✅ In Stock ## Summary > 🎵 Power your bass kingdom with Skar Audio’s RP-4500.1D — where serious sound meets serious control. ## Quick Answers - **What is this?** Skar Audio RP-4500.1D Monoblock Class D MOSFET Amplifier with Remote Subwoofer Level Control, 4500W by skar audio - **How much does it cost?** ¥451630 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/730707606-skar-audio-rp-4500-1d-monoblock-class-d-mosfet-amplifier) ## Best For - skar audio enthusiasts ## Why This Product - Trusted skar audio brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision Bass Control:** Fine-tune your low-end with an included remote subwoofer level knob and onboard bass boost up to 9dB for that perfect thump anywhere, anytime. - • **Rock-Solid Reliability:** 4-way protection circuitry guards against overheating, short circuits, and low voltage, ensuring your investment stays safe and sound. - • **Unmatched Power Output:** Dominate your soundscape with 4500W RMS and 7000W peak power—competition-grade performance that leaves others in the dust. - • **Efficient 1Ω Stability:** Stable at 1 ohm with high-speed MOSFET power supply and oversized 1/0 AWG terminals for maximum current flow and ultra-efficient power delivery. - • **Pro-Level Connectivity & Flexibility:** Strappable design with RCA input/output for daisy chaining and master/slave switching—build your ultimate multi-amp setup effortlessly. ## Overview The Skar Audio RP-4500.1D is a competition-grade Class D MOSFET monoblock amplifier delivering a staggering 4500 watts RMS at 1 ohm and peak power up to 7000 watts. Engineered for audiophiles demanding extreme power and reliability, it features advanced 4-way protection circuitry, remote subwoofer level control, and precision bass tuning. Its robust 1/0 AWG terminals and efficient design ensure maximum current flow and stable operation, making it a top-tier choice for professional-grade car audio setups. ## 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. Review: 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. Review: Yes - Great power need another ## 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 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0788B8YP9 | | Best Sellers Rank | #1,398,636 in Electronics ( See Top 100 in Electronics ) #138 in Car Multichannel Amplifiers | | Brand | Skar Audio | | Brand Name | Skar Audio | | Customer Reviews | 4.5 out of 5 stars 134 Reviews | | 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 | | Item dimensions L x W x H | 56 x 21 x 6.2 Centimeters | | Manufacturer | Skar Audio | | Material Type | Semiconductor | | Maximum Output Power | 7000 watts | | Model Number | RP-4500.1D | | Mounting Type | Surface Mount | | Number of Channels | 1 | | Output Power | 4500 Watts | | Package Type Name | Box | | Part Number | 43217-166536 | | Specification Met | [Inferred: Fcc, Possibly Others] | | UPC | 011922308457 | | Unit Count | 1 Count | ## Product Details - **Brand:** Skar Audio - **Item dimensions L x W x H:** 56 x 21 x 6.2 Centimeters - **Manufacturer:** Skar Audio - **Mounting Type:** Surface Mount - **Number of Channels:** 1 ## Images ![Skar Audio RP-4500.1D Monoblock Class D MOSFET Amplifier with Remote Subwoofer Level Control, 4500W - Image 1](https://m.media-amazon.com/images/I/61m2cGZD1CL.jpg) ![Skar Audio RP-4500.1D Monoblock Class D MOSFET Amplifier with Remote Subwoofer Level Control, 4500W - Image 2](https://m.media-amazon.com/images/I/7178GXcTJvL.jpg) ![Skar Audio RP-4500.1D Monoblock Class D MOSFET Amplifier with Remote Subwoofer Level Control, 4500W - Image 3](https://m.media-amazon.com/images/I/71G92Phva1L.jpg) ![Skar Audio RP-4500.1D Monoblock Class D MOSFET Amplifier with Remote Subwoofer Level Control, 4500W - Image 4](https://m.media-amazon.com/images/I/71YN5X4WTWL.jpg) ![Skar Audio RP-4500.1D Monoblock Class D MOSFET Amplifier with Remote Subwoofer Level Control, 4500W - Image 5](https://m.media-amazon.com/images/I/61LQBfibINL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: I have 4 12"s will i have to install a second battery for it to push like i expect it too?** A: Always upgrade the big three first bigger wire,alternator, and battery before adding anything like one guy said capacitors are garbage they mistakenly make you think they do what you want them to do but they do not at all. **Q: Is or will it handle 0.5 half ohm running daily?** A: Highly not recommended. Can it? Yes For how long?! Heat and component build will decide that **Q: will this amp work with 2 evl skar 15's 2ohm subs..l** A: Yes no problem **Q: i have 2 evl-15 d2 with 3 yellow top batteries and 2 alternators set up. which amp would i need to push my 15's seeing that i have plenty of power???** A: I’m selling one of these amps. Brand new. On eBay ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great underrated Amplifier *by T***R on 10 June 2023* 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. ### ⭐⭐⭐⭐⭐ Yes *by R***T on 17 June 2026* Great power need another ### ⭐⭐⭐⭐⭐ Insanity! *by J***N on 27 July 2023* I like how loud and perfect this setup is, or any of my Skar setups for that matter. Just a beautiful thing. Bravo, Skar… Bravo Edit: 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. ## Frequently Bought Together - Skar Audio RP-4500.1D Monoblock Class D MOSFET Amplifier with Remote Subwoofer Level Control, 4500W - Skar Audio Dual 12" 5000W Loaded EVL Series Vented Subwoofer Enclosure | EVL-2X12D4 - Skar Audio 1/0 Gauge OFC Complete Amplifier Installation Wiring Kit, SKAR0ANL-OFC --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/730707606-skar-audio-rp-4500-1d-monoblock-class-d-mosfet-amplifier](https://www.desertcart.jp/products/730707606-skar-audio-rp-4500-1d-monoblock-class-d-mosfet-amplifier) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-07-11*