SKU: 21878128967

B2 Audio RAGE MI 1000.4 - 4 Channel Amplifier

Sale price$186.30 Regular price$207.00
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Description

B2 Audio RAGE MI 1000.4 - 4 Channel AmplifierRAGE MI Imagine the RAGE amps, with their features, performance and versatility. Their footprint is small for their performance, but can it be wrapped up in a slight different package? The RAGE MI, where the MI equals Mini does exactly that. Power, Performance, Perception & even smaller! It sounds too good to be true, but with a few redesigns weve made it possible. Offering the exact same power as the RAGE 1200s wouldnt make any sence, so we dialled

RAGE MI

Imagine the RAGE amps, with their features, performance and versatility. Their footprint is small for their performance, but can it be wrapped up in a slight different package? The RAGE MI, where the MI equals Mini does exactly that. Power, Performance, Perception & even smaller! It sounds too good to be true, but with a few redesigns we’ve made it possible.

Offering the exact same power as the RAGE 1200’s wouldn’t make any sence, so we dialled it back a bit. Not much though, the RAGE MI 1000.4 still offers an impressive true 4 x 175 W RMS @ 4 Ω. In dyno testing we were less than 6 % shy of that at 8 Ω! That goes to say these amps are beyond expectation.
The other RAGE MI offering is a 850 W mono and stable at 1 Ω. The same efficiency is clear here, 2 Ω dyno performace boasts more than 600 W. The near identical footprint of these 2 amps makes them perfect for sleek installs.
Any Level

The MI mono took notice of its RAGE 1200 siblings high level feature. The high & low level inputs offers greater flexibility, especially in vehicles where no RCA outputs are present. Given the modest dimensions, the amp can be hid away nearly everywhere (9.5 x 4.9 x 2.2″ / 24 x 12.5 x 5.7 cm). There’s no excuses for having insufficent bass response anymore. Even with a small amount of space for an enclosure, our shallow mount woofer RIOT FL10 solves that.
The RAGE MI 850 has a fully featured 12 dB / octave crossover section with 10 Hz ~50 Hz adjustable subsonic, 35 Hz ~250 Hz lowpass & a fixed 0 ~12 dB boost level @ 45 Hz. We even managed to squeeze in an external bass level remote port.
Packing the panel

The 4 channels of the RAGE 1000.4 MI takes up the entire panel. We didnt narrow it down with fixed crossover points & only 1 crossover type per stereo channel. The amp has fully configurable high & low pass crossovers on all channels. With the 50 Hz ~5 KHz adjustable frequency range the amp is ideal for anything , midwoofers, midranges, even bullet tweeters! Seeking more? The bridged configuration has more than 500 W available per channel, equalling over 1000 W RMS in total! With lowpass crossovers set accordingly, this tiny amp can used as a pure sub amp, or even as a tri-mode, with loudspeakers on the unbridged channels (front) and a woofer on the bridged channel (rear).

SPECIFICATION 14.4V
Power @ 4 Ω: 4 x 175 w
Power @ 2 Ω: 4 x 250 w
Power @ 4 Ω bridge 14.4v < 1% THD: 2 x 500 w

SPECIFICATION

Frequency Response: 20 Hz ~ 35 KHz (+/- 2 dB)
Signal to Noise Ratio: > 90 dB
Input Sensitivity: 6 ~ 0.2 V
Crossover: 12 dB / Oct
High Pass Crossover: 50 Hz ~ 5 KHz
Low Pass Crossover: 50 KHz ~ 1 KHz
Damping Factor: >200
Power Terminal Gauge: 4 GA x1
Fuse Rating: 100 A
Operational voltage: 9 V ~ 17.5 V
Dimensions: 10.2″ x 5.9″ x 2.2″
260 x 125 x 57 MM
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • 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
SKU: 21878128967

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4.9 ★★★★★
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George
Birmingham, US
★★★★★ 3
Check components for imperfections
Color: Black, Color: Black
Just finished putting the chair together, and while there were some nice touches (gloves to wear while assembling) and manual very easy to understand, there are more steps than are customary for a basic chair. However, two main gripes are (1) bought Saturday for $129.99, today it is listed for $89.99 (2) out of the box, the mesh back of the chair has a small tear in it. Unsure if it will end up being a long-term issue, but irritating all the same.
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Reviewed in the United States on February 24, 2026
M
Verified Purchase
Melanie
Natrona Heights, US
★★★★★ 5
Amazing chair
Color: Black
Going from a regular office chair to this majestic heavenly office chair, my body hasn't felt better. As a person who is rather on the large side (6'2, 175 pounds), so this chair good butt cushioning, adjustable armrest, the adjustable headrest made this purchase an very good one. I move constantly on chairs so when i found out tthis chair can adapt to my position with a few tweaks i instantly fell in love. Considering that I have jumped and stood on the chair quite the number of times and it still is holding its form just speaks to its sturdiness. I dont believe in buying extremely expensive chairs as a high quality one like this has everything you could wish for.
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Reviewed in the United States on May 4, 2026
J
Verified Purchase
Jessica
Boise, US
★★★★★ 5
Wow Great Deal!
Color: Black
I have been using this chair for a month now and I am honestly impressed for the price I paid. I work from home so am using this chair 24/7. I had no issues with assembling it myself as a 35 year old female. Instructions were simple to follow and took me maybe 30 minutes to put together. Its sturdy and comfortable. I appreciate the padded arms and the seat bottom is also a nice thick cushion. Added bonus for the head rest and that it is adjustable. Definitely recommend.
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Reviewed in the United States on March 27, 2026
E
Verified Purchase
eHackster
Omaha, US
★★★★★ 5
Very comfortable office chair
Color: Black
This ergonomic office chair is very comfortable and has good lumbar support and a nice headrest. It includes all the necessary tools and takes about 20 minutes to fully assemble. The height adjust and recline features of the chair work smoothly and quietly. The seat cushion is nice and comfortable. The height-adjustable armrest is also a nice features of the chair. Overall, this ergonomic office chair provides relaxing comfort during long hours sitting with support for your bottom, back, head and arms. It's a good value for the price.
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Reviewed in the United States on February 21, 2026
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Tyler montano
Houston, US
★★★★★ 4
Good quality and arrived quickly
Color: Black
I was very pleased with how easy this chair was to set up. Affordable, arrived quickly. The only reason it isn’t 5/5 is because on of the arms had a small dent, possibly due to not enough bubble wrap during shipping. Other than that, the quality is great.
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Reviewed in the United States on February 6, 2026

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