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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:
- 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]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 27 reviews
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Product Reviews
★★★★★ 3
Not as good as I expected
When it first came, the box fell apart as I was taking it out, and a lot of some kind of dirt or sand kept falling out all over my table and floor. I had the take the entire thing apart and thoroughly wash it.
After drying age reassembling it, I tried it on my portafilter that came with my Breville Barista Express, but, somehow, it doesn't always make the tamping level. You would think with the ridge that rests on the side of the portafilter that it would force it to remain level, but, somehow, it doesn't, at least not consistently. It also has varying lengths (heights, or depths), and a single spring tension, so you may still over tamping or under-tamp. I was expecting it would have a censor that would just detect once it reached 30 lbs of force and cut off after that, similar to a torque screwdriver, but that's not what this is.
I'll still give it 3 stars because, despite the problems mentioned above, it at least produces some amount of consistency, even if that isn't measurable; but, I can't give it 5 stars because of those issues mentioned above.
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Reviewed in the United States on January 7, 2025
★★★★★ 5
This is the one.
Size: 58.3mm, Color: Black
As an el Supremo Coffee Geek, I've wasted money on lots of different tampers. Save your money and buy this one or it's equivalent. This thing is heavy duty, solid, well-made, self-leveling, tamps at 30 pounds and is fool-proof even for fools. Also, it's a palm tamper meaning more fun and more satisfying to use as you prep the puck for your morning buzz. Buy it. You will thank me.
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Reviewed in the United States on March 30, 2024
★★★★★ 5
Super easy to use and takes the guess-work out of getting even pressure on the grounds
Size: 58.3mm, Color: Black, Size: 58.3mm, Color: Black
I have been using a hand tamper for many years and have a good idea of the pressure I am applying to the grounds in the portafilter. I honestly considered spring tampers to be a bit silly. But this tamper really does take the guess-work out of pressing the coffee grounds. The shroud helps guide the press so that pressure is applied even and flat across the surface. With the manual tamper, there will be some play when pressing, or some unevenness in pressure. This is especially true when cranking out many espressos during a breakfast party with friends. Having the spring tamper makes quick work of turning out a lot of coffees with consistency.
There are no instructions for taking this tamper apart to clean inside, and you may not really need to do that very often. After each use, just pull back the shroud (the black piece that moves up and down) and wipe off the tamper (the shiny steel part). This will help prevent grounds from working their way inside. If you do want to take it apart, it’s easy. Pull back the shroud and unscrew the tamper. It will come apart into three pieces. Wipe the pieces off and reassemble. Super quick and easy.
This tamper is very heavy. My scale shows 656 g (about a pound and a half). It fits the portafilter exactly, with no slop. Just place on top of grounds and press!. Don’t even worry about pressure, just push down all the way. Overall I had fun using this tamper versus my manual one. And since I make myself a cappuccino very early in the morning, I don’t have to be very awake to get a good pack on the grounds and get my coffee fast!
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Reviewed in the United States on January 10, 2024
★★★★★ 5
It is heavy
Size: 58.3mm, Color: Black
Item was as described and shipped promptly. It is heavy and works well with my portafilter. I haven't had it long enough to really evaluate how helpful it is.
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Reviewed in the United States on October 31, 2025
★★★★★ 5
Muy bueno
Muy bueno
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Reviewed in the United States on November 18, 2025
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