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Skar Audio SK-M9005D Compact Full-Range Class D 5 Channel Car Amplifier, 900W

  • Based on 1,504 reviews
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Availability: In Stock.
Fulfilled by SKAR AUDIO

Arrives Friday, Jun 26
Order within 16 hours and 31 minutes
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Size: 900 Watt RMS Class D Five Channel


Features

  • Ultra Compact MOSFET 5-Channel Class D Car Amplifier
  • RMS Power @ 2 Ohm: 85 Watts x 4 + 450 Watts x 1 (14. 4v)
  • Frequency Response: 10Hz - 20kHz for CH 1-4 & 10Hz - 500Hz for CH 5
  • Crossover Control: HPF / Full-Range / LPF | Built In 4-Way Protection Circuitry
  • Remote Bass Knob/Cable and Speaker Output Adapter Harness Included

Description

The Scar Audio SK-M9005D full-range five channel amplifier offers high performance from an ultra-compact chassis. This Class D amplifier uses less power, takes up less space, and generates less heat than traditional amp designs, making it the perfect solution when space is at a premium and sound quality is the ultimate goal. Don't let its size fool you, the SK-M9005D boasts an impressive 900 Watts of RMS power output (continuous), providing the versatility to power multiple sets of speakers as well as a subwoofer in your system. The SK-M9005D provides you with the tone controls you need to tune your system so that your speakers and sub sound their best. Utilizing the high-pass filters, you can remove the extreme low bass from your full-range speakers, so they'll play more efficiently. You can adjust the subwoofer channel's low-pass filter and bass boost to get just the right bass tone. This five channel amplifier comes with a remote bass knob and cable, providing the ability to control the bass from the dash. In addition, the SK-M9005D utilizes an adapter harness for the speaker outputs allowing for an easier installation. Utilizes 8 Gauge Power and Ground Input Terminals. RMS Power @ 2 Ohms: 85 Watts x 4 + 450 Watts x 1 (14. 4v), Frequency Response: 10Hz - 20kHz for CH 1-4 & 10Hz - 500Hz for CH 5, Crossover Control: HPF / Full-Range / LPF. 4-Way Protection Circuitry Built-in (Thermal, Voltage, Speaker, DC), Remote Bass Knob and Cable Included. Amplifier's Physical Dimensions: 12. 4 in x 4. 6 in x 1. 7 in (L x W x H)

Item dimensions L x W x H: 17.25 x 5.5 x 2.5 inches


Voltage: 14.4 Volts


Manufacturer: Skar Audio


Maximum Supply Voltage: 14 Volts


Minimum Supply Voltage: 14.4 Volts


Voltage: 14.4 Volts


Maximum Supply Voltage: 14 Volts


Minimum Supply Voltage: 14.4 Volts


Mounting Type: Surface Mount


Number of Channels: 5


Output Power: 900 Watts


Package Type Name: Box


Maximum Output Power: 900 watts


Item Dimensions: 17.25 x 5.5 x 2.5 inches


Material Type: Metal


Specification Met: FCC


Manufacturer: Skar Audio


Model: SK-M9005D


Brand Name: Skar Audio


Warranty Description: 2 year limited warranty


UPC: 739189979172


Part Number: SK-M9005D


Item Type Name: Car Amplifier


Item Weight: 4.94 Pounds


Included Components: Allen Wrench, Instruction Manual, Remote Bass Knob & Wire, Skar Audio SK-M9005D Class D Full-Range 5-Channel Amplifier, Speaker Out Adapter Harness


Unit Count: 1.0 Count


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jun 26

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


  • Small and powerful 5 channel amp Small and powerful 5 channel amp
Size: 900 Watt RMS Class D Five Channel
Pleasantly surprised with this amp. This amp replaces my old 4 channel amp and mono sub amp. It is running my 6x9 front door speakers and 6.5 rear door speakers along with a 10” pioneer subwoofer. This amp is a bargain for what it’s capable of doing. The sound is nice and the build quality looks great. I would buy this amp again. ... show more
Reviewed in the United States on February 2, 2026 Reviewed in the United States on February 2, 2026 by John K

  • Small but packs a punch
Size: 900 Watt RMS Class D Five Channel
OK. Normally I will not write a review, even if the product is horrible. When I first opened the package, I checked several labels to make sure this is what I ordered. (It was much smaller than expected). I installed the amp hoping it could at least push the four 6.5 speakers that I installed in the doors of my rogue. It sounded horrible, but I was jumping to conclusion because of the size of the amp. I didn't even adjust the gain or high pass setting. After a few adjustments the mid/hi range speakers were very good.. the amp felt hot to the touch though. I figured that i would have to buy another amp for the 10 inch sub. I decided to connect the sub just for reference.. This small amp that carries 8 gauge power/ground and 14 gauge output speaker wire is very impressive. I have no need for another amp. (it did not over heat) Note I'm not in competition phase. I just wanted an inexpensive and simple 5 channel system, to improve the factory system this amp pushes four 6.5 midrange speakers and one 10 inch sealed box sub very well ... show more
Reviewed in the United States on May 12, 2023 by jamal f

  • Five Channel Budget King!
Size: 900 Watt RMS Class D Five Channel
The Skar SK-M9005 is one of the smallest five channel amps you'll find. Not only is the size small, but the price is as well, making this a compelling choice for those looking for a single system amp who only have limited space. This amp is rated to deliver: 55x4 plus 300x1 at 4 ohms or 85x4 plus 450x1 at 2 ohms or 170x2 (4 ohms bridged) plus 450x1 at 2 ohms I tested this amp on my SMD Amp Dyno and confirmed these ratings are accurate. I loaded ALL channels of the amp during my tests and used a 40Hz tone, which gave a worst case scenario. In most cases people will enable high pass filter on the front/rear channels and not pass low frequencies to all speakers. I tested the amp this way to see if it could still deliver rated power with all channels loaded down and it did! There are a few drawbacks I'll note. First, the amp needs inputs on all channels and doesn't offer a way to use only 2 or 4 inputs. This could be a problem in many systems. Also, the speaker harness is via plug and small gauge speaker wire. You'll need to be prepared to solder, butt connect, or use terminal blocks to manage the speaker connections. Finally, the bass knob (included) uses the 3.5mm connector, which can easily detach from the amp or remote. I prefer the RJ11/RJ45 style which fit with that extra click. I have not done long-term testing with the amp, so I cannot comment on the reliability. The amp does use an old style driver board which is prone to failure due to excessive heat. Overall this is a great all-in-one amp for those who need some extra power for their system, but don't want to invest a large amount. Just make sure you understand the limitations. Overall recommended. ... show more
Reviewed in the United States on April 22, 2020 by Dereck W.

  • Filter the reviews by amp model
Size: 900 Watt RMS Class D Five Channel
If you’re looking at the SK-M9005D, filter the reviews for five channel amp which sucks. Purchased the 5 channel amp based on high review rating but was fooled. If you filter for only the sk-m9005d, you will see most are experiencing the same thing that is happening to mine. It overheats and shuts off for a few seconds then back on. It repeats this over and over. When it was first installed it seemed to work fine but after two weeks it started and keeps getting worse. Unfortunately I’m past the return window or it would be going back. I usually don’t get fooled by Amazon, but in this case, I feel that I was. This model amp should have its own listing so consumers could see it for what it is, a piece of junk. Stay sway. I wish I would have purchased the Stinger Amp which has similar specs and much better reviews. ... show more
Reviewed in the United States on November 25, 2025 by _Me

  • I gotta admit this amp is a lot of bang for the buck.
Size: 900 Watt RMS Class D Five Channel
As someone who has been into car audio for several decades I was very skeptical that this amp would perform for this low of a price. I read reviews and watched YouTube vids of amp dynos and this amp is legit. It puts out more power and sound than my alpine amp I replaced with it and for a fraction of the cost. It’s definitely worth the money and it performs very well. I haven’t had any problems with it so far and it hasn’t shut down from heat or anything either. I’m pretty impressed and I think you will be too. I’m definitely recommending it and if you’re on the fence about it, go for it. ... show more
Reviewed in the United States on April 27, 2024 by Nitz5785

  • Good amp, but needed one more channel
Size: 900 Watt RMS Class D Five Channel
This was as described, and would no doubt work OK but I found after receiving it I really needed 6 channel s for my OEM sound setup to replace the factory amp. Return was handled properly.
Reviewed in the United States on February 12, 2026 by UJM81

  • Strong amp for a good price.
Size: 900 Watt RMS Class D Five Channel
Didn't want to deal with power distribution to multiple amps, and didnt want to run 0/1 guage for higher wattage amps that don't put out the power they say. Ha e this amp running 6x9 Alpine R components, 6.5 Alpine R, and a 10in solo L5 on 4 guage wiring. This thing pushes the entire system HARD! Sounds amazing! If youre a minimalist on a budget and looking for a single amp that will run an entire system, I dont think you'll find any better than this. ***NOTE*** One thing I DONT like..... all 5 channel connections are done through a single plastic 12 pin connector into the amp. I'm sure it's fine as the wire is heavy enough, but it means you will have to make wiring connections(butt connectors or solder). I don't plan on changing anything any time soon, so I'm fine with it I guess. ... show more
Reviewed in the United States on June 19, 2023 by Christopher S.

  • Compact, and powerful. Compact, and powerful.
Size: 900 Watt RMS Class D Five Channel
Edit: I bought this in January 2021 and it is now October 2022. Amp has stopped working. Power and inputs has all been verified with oscilloscope, all the speakers are still good. Amp just keeps power cycling. It was a great amp that gave me no problems. It just would not turn on one day, no other signs of issues before that point. If these were still in stock, I would probably buy another one, just because this amp matched my power needs exactly. I have a small car, so space was a was a major concern when I picked out my amplifier and speaker package. I chose this amp because it had the power I needed in a small size. After an hour or so at full volume it does get slightly warm, but as long as you have good power going to it, it should not get hot. I ran 4gauge all the way back, then dropped it down to 8 gauge for the last 14". 4gauge wire is not necessary, but it doesn't hurt anything either. I am using this to push 4x Hifonics ZS65C Zeus 6.5" 4ohm component speakers and a single 2ohm Kicker 10" CompRT (one powered subwoofer, one passive subwoofer in a compact box) Pros: - Very powerful for the size - Great sound with no distortion - Stays cool - So small it will fit almost anywhere - Price Cons: None of these are a deal breaker, I am putting these here for people so they know what to expect. - The remote bass control knob uses a headphone style jack instead of the usual RJ-45. I'm sure they did this due to available space. - All of the speaker outputs are on a small plug instead of screw terminals. This makes for a slightly more difficult time trying to make everything look decent on install. Again, they probably did this due to the small size of the amp. - The connection for the remote turn on wire is way bigger than it needs to be. It can fit around a 10 gauge wire. 14 gauge wire just looks odd in the connection. None of the cons would stop me from purchasing this amp again. I would highly recommend this amp to anyone looking to power their whole system. ... show more
Reviewed in the United States on January 11, 2021 Reviewed in the United States on January 11, 2021 by Brenna Campbell

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