SKU: 4878828662

B2 Audio ZERO "Osprey" 9K Watts 1-Ohm Monoblock Class-D Half Bridge Amplifier

Sale price$899.98 Regular price$999.98
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Description

B2 Audio ZERO "Osprey" 9K Watts 1-Ohm Monoblock Class-D Half Bridge Amplifier9000W 1 Ohm Monoblock Car Amplifier Deliver raw power and clean output with the B2 Audio ZERO Osprey 9K, a high performance amp built for serious bass and SPL performance. Korean Class D Half Bridge Design Crafted with precision Korean engineering for maximum efficiency, stability, and performance across a wide voltage range. RMS Rated Power from 2200W to 9000W Consistently powerful across 12V to 16V operation, pushing your subs with clean,

  • 9000W 1-Ohm Monoblock Car Amplifier – Deliver raw power and clean output with the B2 Audio ZERO Osprey 9K, a high-performance amp built for serious bass and SPL performance.
  • Korean Class-D Half Bridge Design – Crafted with precision Korean engineering for maximum efficiency, stability, and performance across a wide voltage range.
  • RMS Rated Power from 2200W to 9000W – Consistently powerful across 12V to 16V operation, pushing your subs with clean, undistorted bass every time.
  • Advanced Crossover Tuning Options – Fine-tune your setup with 24dB/oct slope, low pass (35–250Hz), subsonic (10–50Hz), and input sensitivity from 5V–0.2V for total control.
  • Built for Demanding Audio Setups – Heavy-duty 0 GA power/ground terminals, 800A fuse rating, and over 95dB S/N ratio make this amplifier a powerhouse for any competition or daily system.


B2 Audio ZERO "Osprey" 9K Watts 1-Ohm Monoblock Class-D Half Bridge Amplifier


This Listing Includes:


(1) 9000W 1 ohm Class D Half bridge Amplifier


Item Description


Upgrade your car audio system with the B2 Audio OSPREY 9K Monoblock Amplifier, delivering an astounding 9000 watts of power at 1 ohm impedance. This Class D Half Bridge amplifier is engineered to provide exceptional performance while maintaining efficiency and reliability. With RMS power ratings ranging from 2200 to 9000 watts, it's capable of driving even the most demanding subwoofers with ease. Featuring adjustable low pass and subsonic crossovers, as well as precise input sensitivity control, it allows for fine-tuning to achieve the perfect sound. Crafted with Korean precision and quality, this amplifier is built to last and excel in any audio setup.


Features



  • RMS Power @ 1 Ohm (14.4V): 8500 Watts

  • RMS Power @ 1 Ohm (16V): 9000 Watts

  • RMS Power @ 4 Ohm: Up to 3500W depending on voltage

  • Class-D Half Bridge Korean Board Design

  • Frequency Response: 10Hz – 300Hz

  • Signal-to-Noise Ratio: >95 dB

  • Input Sensitivity: 0.2V – 5V

  • Low Pass Filter: 35Hz – 250Hz

  • Subsonic Filter: 10Hz – 50Hz

  • Damping Factor: >400

  • 0 Gauge Power/Ground Terminals

  • 4 Gauge Speaker Terminals

  • Fuse Rating: 800A

  • Dimensions: 24.5" x 9.25" x 2.67" (622mm x 235mm x 68mm)


Specifications:



  • Total Watts:  9000 Watts


12V <1% THD



  • RMS Power @ 4 ohm: 2200

  • RMS Power @ 2 ohm: 3800

  • RMS Power @ 1 ohm: 6000


13.8V <1% THD



  • RMS Power @ 4 ohm: 3000

  • RMS Power @ 2 ohm: 5500

  • RMS Power @ 1 ohm: 8000


14.4V <1% THD



  • RMS Power @ 4 ohm: 3400

  • RMS Power @ 2 ohm: 5900

  • RMS Power @ 1 ohm: 8500


16V <1% THD



  • RMS Power @ 4 ohm: 3500

  • RMS Power @ 2 ohm: 6000

  • RMS Power @ 1 ohm: 9000

  • Circuit Configuration: Class D Half Bridge

  • Frequency response: 10 Hz ~ 300 Hz

  • Signal to noise Ratio: >95 dB

  • Input Sensitivity: 5V ~0.2V

  • Crossover Circuit: 24 dB / OCT

  • Low Pass Crossover: 35 Hz ~ 250 Hz

  • Subsonic Crossover: 10Hz ~ 50 Hz

  • Damping factor: >400

  • Power/Ground Terminal Gauge:  0 Ga

  • Speaker Terminal Gauge: 4 Ga

  • Fuse Rating: 800A


Measurements:



  • Length: 24.5" / 622mm

  • Width: 9.25" / 235mm

  • height: 2.67" / 68mm

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 4878828662

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Richard Gopen
Pawtucket, US
★★★★★ 5
Good, inexpensive replacement filter
I've used these filters for a couple years (four replacements) on my Subaru Crosstrek, and they seem to do the job well, probably as well as the original. I generally remove and clean them every three months, and replace them every six.
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Reviewed in the United States on May 7, 2026
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Jim Wallace
Port Orchard, US
★★★★★ 5
Save some money by doing your own cabin filter change! (You won't notice a difference).
So, one day I was getting an oil change at the dealership, and the associate told me that cabin filter was pretty dirty, which I believed because of the places I take the car, and she said that they could change it while they were finishing up the rest of their inspection, since they already had it apart. I asked her "How much?", and then we both had a laugh when she said "$90." I told her I'd take care of it. It took two days for Amazon to get a replacement filter to me, twenty minutes to watch a You Tube video showing how to replace the cabin filter on my car (I watched it twice), and then about twenty-five minutes to replace the filter itself--I keep a messy glove compartment, so a good portion of the time was loading and unloading that nightmare. In the end, under $15 for the filter, maybe 45 minutes to watch and replace, and the cabin filter hasn't been this good since I first bought the car. This replacement version was as good as the OE filter, fit exactly the same, there's no difference in airflow that I can tell, and so far (6 months later), it seems to be holding up pretty well. We'll see what it is like after a year. I did get the oil changed about a week ago, and the technician didn't raise any alarms about the filter, so everything seems to be working. $90 for a new filter? You can do it yourself cheaper.
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Reviewed in the United States on April 6, 2026
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chad martin
Waukegan, US
★★★★★ 4
Fresh Air Upgrade for My 2024 Impreza
Installed this in my 2024 Subaru Impreza, and it fit perfectly—no issues. The air smells noticeably cleaner now, and it took less than 10 minutes to swap out. The carbon and HEPA filtration does a great job clearing out odors, dust, and pollen—definitely an upgrade over the factory filter. The build feels sturdier than the OEM version, though it does have slightly fewer pleats. Might mean it needs replacing a bit sooner, but for the price and performance, I’m fine with that tradeoff. If you’re looking for a quick, affordable way to improve your cabin air, this one’s a solid pick. 
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Reviewed in the United States on June 26, 2025
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Gram21
Massapequa, US
★★★★★ 5
Well built, good fit.
I like it so well, I just bought two more to keep on the shelf for when the price doubles. Seems better built than oem, but I don't know how you can judge the filtration; seems good though.
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Reviewed in the United States on May 6, 2026
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LJ
Lake Worth, US
★★★★★ 5
Great product
Perfect fit for 21 Cross Trek
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Reviewed in the United States on February 12, 2026

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