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Orion Cobalt CBA4500.1D Monoblock 1-Channel Class D Amplifier for Car Subwoofer, 4500W Max, 1200W RMS, 1/2/4 Ohm Stable, Adjustable Low Pass with Bass Boost, MOSFET Power Supply, Bass Knob Included

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Availability: In Stock.
Fulfilled by Amazon

Arrives Wednesday, Jun 24
Order within 18 hours and 17 minutes
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Size: 1-Channel


Style: 1-Channel - 4500 Watts


Features

  • This Class D Monoblock Amplifier exhibits quality frequency response rates and crossover network which places this amp at a prominent place. Durable design and highly efficient performance makes this mono sub amp stand out amongst the others.
  • This cobalt subwoofer amplifier for car speakers is able to power loads of 1 Ohm on a continuous basis without facing any difficulties like overheating, making extra sounds. This Class D amplifier is designed to power subwoofers that have a constant demand of high power in order to operate effectively.
  • The monoblock subwoofer amplifier for car stereo speakers with mosfet power supply comes with low-level inputs. A low level (RCA) input is measured in voltages. Essentially carry signal from your receiver to your amplifier to your speakers.
  • The monoblock bass boost amplifier has features like - Frequency Response: 10~250HZ, Low Pass Filter, Bass Boost, Subsonic Control, Remote Bass Knob, MOSFET Power Supply, Thermal Protection, Phase Shift.
  • This Class D 4500 watt Amplifier has a power rating distribution as follows: 12000W RMS @ 1 OHMS | 650W RMS @ 2 OHMS | 400W RMS @ 4 OHMS. The monoblock amplifier for car speakers also provides a 2-way protection circuitry as a part of its design.

Item dimensions L x W x H: 15 x 7 x 3 inches


Voltage: 12 Volts


Manufacturer: Orion


Maximum Supply Voltage: 16 Volts


Mounting Type: Panel Mount or Bracket Mount


Voltage: 12 Volts


Maximum Supply Voltage: 16 Volts


Mounting Type: Panel Mount or Bracket Mount


Number of Channels: 1


Output Power: 4500 Watts


Maximum Output Power: 4500 watts


Item Dimensions: 15 x 7 x 3 inches


Manufacturer: Orion


Model: CBA4500.1D


Brand Name: ORION


Warranty Description: 1 YR Manufacture


UPC: 818550017085


Part Number: CBT4500.1D


Item Type Name: Amplifier


Included Components: Amplifier^Hardware^Manual


Unit Count: 1.0 Count


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Jun 24

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


  • Orion still good after all these years. just unfortunately over rating their amps now
Size: 1-Channel Style: 1-Channel - 4500 Watts
In the 90s when I was a teenager I ran Orion equipment and it was some of the best stuff and they UNDER rated their amps wattage. Unfortunately now days they over rate their amps :( This amp dyno tests to only a about 350 watts...which is still enough to push two shallow mount 12s,,,but not even close to the rating Orion says it is, lol. That being said, I chose to purchase Orion equipment for daughters 2023 Trailblazer. I built some nice boxes that sit behind each front seat (in rear seating foot area), facing backwards, snug in the entire area each box being aprox 2.4 cubic feet, sealed, and allowing for her to have a completely flat rear area with rear seats down and full open cargo area for her heeler dogs. Her rear cargo mat goes from rear of car to back of front seats sitting ontop of the two boxes perfectly. The bass is good...NOT awesome and intense like Orion once was...but these ARE shallow mount 12s in small enclosures (although this is the size they are called for), and again this amp only puts out about 350watts max.... and she is VERY happy with the bass. Myself having had 90s Orion 12s and amps that would crack my windshield..Im a bit disappointed. So have your expectations be reasonable :) Orion does make and sell higher end 12s, and amps, so again for what this equipment is, Id still give it a sold A+ There is no distortion at all, and nothing being pushed beyond its limits, so this should last her for the next 4 or 5 years till she changes vehicles :) ... show more
Reviewed in the United States on December 3, 2025 by chad

  • They deliver power!
Size: 1-Channel Style: 1-Channel - 4500 Watts
I have 3 of these, delivers the power I need for my system!
Reviewed in the United States on February 13, 2026 by Matt hendryx

  • LEANIN TOWER OF POWER
Size: 1-Channel Style: 1-Channel - 4500 Watts
bought this to power the skar evl 18 i just got and man does it deliver, thought i was gunna have to return and buy the taramps/ sundown counterpart but man this thung just hits and it has very little distortion when cranking it too, a heavy hitter for under $150
Reviewed in the United States on October 18, 2025 by Nicholas Baab

  • Not sure about this product!
Size: 1-Channel Style: 1-Channel - 4500 Watts
This amp was returned because it didn’t work no power something was wrong with this product.
Reviewed in the United States on December 31, 2025 by David Ross

  • Decent amplifier for the price.
Size: 1-Channel Style: 1-Channel - 4500 Watts
Decent amp for the money. At this price point I would give 5 stars. However the only reason I am not giving 5 stars is because it is listed as a 4500 watt amplifier. Look at the fuses and do the math. So while they are quite optimistic about thier output power rating... it is still absolutely plenty for making you deaf. Or better yet, not overdriving it and running a conservative 1200ish watts rms with plenty of headroom and very solid performance. Just run 2 gauge wire so you don't choke it for power, and adequately upgrade your ground and power distribution as you would with any decent install then it will be great. I've had high dollar stuff in my cars in the past. This amplifier is on par with something you'd pay a grand for in 2001. Not top shelf but of very good quality for the price. Not unlike the peak output power claims, the ranges on the filters are not labeled precisely accurate although they do work well. Just tune by ear and pay no attention to the numbers. It will work out better than anything else you will get for less than $200. Overall very good product for the money if you install it correctly and tune it well. I would recommend to anyone looking for a decent quality budget amplifier. ... show more
Reviewed in the United States on April 30, 2025 by Mad Scientist FPV

  • Orion
Size: 1-Channel Style: 1-Channel - 4500 Watts
Great amp for the price
Reviewed in the United States on June 21, 2025 by Amazon Customer

  • Straight dud
Size: 1-Channel Style: 1-Channel - 4500 Watts
Turned on for 20 minutes went into protection mode 📳 never came back on very disappointed
Reviewed in the United States on February 14, 2026 by Stacy Mariney

  • False advertising…….Not 4500 watts not even close
Size: 1-Channel Style: 1-Channel - 4500 Watts
I’m getting 860 watts rms before the amp clips and shuts off. Where is my other 3640 watts? I’m wired to 1 ohm at the amp. I’m an A.S.E master mechanic that has been installing car audio for over 20 years…….. this amp is fine for pushing those $100 Walmart kickers but not for real speakers……. If your planning on pairing this with a d1 destroyer you will be extremely disappointed. ... show more
Reviewed in the United States on May 18, 2023 by Bruce harned

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