RP-4500.1D

Hits hard ,drives two 1600 watt subs,1 ohm load , I've ran this amp hard every day for over six months . Nothing bad to say about it .

So far so good. A truly 1 ohm stable amp. Great customer service. Thru a previous experience not on Amazon. But with the company direct. And it wasn’t their fault. That’s on fed-ex. Quality amp at a great price. From someone who has been into car audio for 36+ years.

Well knock the panties off of none it pushes so hard it sounds great the volume can crank up pretty high it's durability is tough to heat resistance is great

Very good and loud bass for setup I’m running.

Originally I bought this amplifier in January, I did not put it in my car until middle of February. I hooked it up to one DDX 10" 2ohm speaker and had it running with all the setting turned down. It played fine. I had the settings down in order to not blow my speaker that is rated at 1k watts. About two week later I bought 2 DDX 10 inch woofers for the amp. I ran them at 1ohm on one channel, and they sounded incredible. After breaking in my new speakers I slowly started turning the amp up. A couple days go by and I crank it maybe 80% up and after 10 min of playing the amp goes into protection. The amp was warm but not hot. I figured maybe it overheated. It never turned back on so I contacted Skar. They told me to send the amp back so they could test it for a defect, so I did. They tested my amp and deemed it a factory defect. They said they would send me a new one in 3-5 days. So a couple days go by and I call them back to find out what to update was on my replacement. I was informed that they're out of stock and they're shipment of new amps isn't coming in for 10-15 days. Another 14 days go by and I call them up to see if they received the new amps yet, they told me that they did and they would ship mine out the next day. So finally on day 15 they send out my "new" amp and I get it in the mail shortly after. Today I opened up my "new" replacement amp to find what looks like a refurbished used amp (not even my old one) This amp is dinged up with scratches and just normal wear and tear. I hooked it up and it's working fine as of right now but I have only played it for about 5 minutes as it's late at night. I guess we'll see if this one at least works for the time being but I'm not super happy with this service. Not to mention I was denied a refund for $15 for shipping the amp back to them that they told me was a factory defect. This is the first time I've bought a Skar amp and I'm not too pleased, I loved their speakers and have had many of them but I think now it's time for me to find a new brand to avoid this hassle in the future *update* I've beat the hell out of the refurbished amp and its still holding up. It does go into protection at 100% gain but that might be because I need some tuning. For now it works very well at about 90% gain. It does get very hot when running for a long time so maybe I'll install a electric fan somewhere. Would rate 3.5 stars if I could just because of the pain it was to get.

Lot of bass works great for the price

I recently upgraded my car audio setup with the Skar Audio RP-1200.1D Monoblock Class D MOSFET Amplifier, and let me tell you—this amp is a game changer. I paired it with two Sony Xplod 1200W subwoofers that have been in my family for years, and somehow, in 2025, they’re still hitting like they just came out of the box. This amp truly unlocked their full potential, delivering clean, hard-hitting bass that shakes the trunk in the best way possible. The RP-1200.1D doesn’t just claim power—it delivers it. From deep, rumbling lows to tight, punchy kicks, the output is consistently powerful and distortion-free, even when pushed hard. And for the price? It’s an absolute steal. You’re getting serious wattage and reliability without breaking the bank. Beyond just bass, I also have two JBL Concert Series speakers in my front doors, and the clarity is breathtaking. Whether it's crisp highs, smooth mids, or deep lows, my system now has a perfect balance between power and precision. The combination of Skar’s raw power and JBL’s crystal-clear detail has completely transformed my listening experience. If you’re looking for an amp that delivers serious power without draining your wallet, the Skar Audio RP-1200.1D is an easy recommendation. It’s proof that you don’t need to spend a fortune to get rich, room-filling sound that makes every drive an experience.

Works good for 12s