SKU: 9376707829

B2 Audio MANI 600.4 - 4 Channel Amplifier

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Description

B2 Audio MANI 600.4 - 4 Channel AmplifierMANI 600 Stealth, sleek, smooth & surprising. The Mani amplifiers ushers in an entirely new statement. Call it nano, mini or micro amplifiers, we call them Mani 600s. This new platform introduces several user & installer friendly features. Auto detect remote, signal detection & high level speaker inputs brings these small amplifiers into a category of their own! Stealth The Mani deviates from the traditional end panel design, with power, speaker &

MANI 600

Stealth, sleek, smooth & surprising. The Mani amplifiers ushers in an entirely new statement.
Call it nano, mini or micro amplifiers, we call them Mani 600’s. This new platform introduces several user & installer friendly features. Auto detect remote, signal detection & high level speaker inputs brings these small amplifiers into a category of their own!
Stealth

The Mani deviates from the traditional end panel design, with power, speaker & adjustments on each side of the amplifier.
Inspired by the Ref Four SQ amp, Mani’s also have a single front panel layout for all connections. But with a slight twist, as the adjustments has been top mounted for easier access. All controls are well hidden behind a smoked panel, giving the amplifier a sleek and stealthy look.
Controls

So what’s hidden underneath this panel? Given the compact size, you might not expect much? The 600.4 has a fully featured adjustment section, even surpassing some of our previous full range amplifiers. Upper left you have the Turn on selection with 3 different modes for amplifier start up. Switched remote, speaker offset or RCA signal detection.

Frequency 10 x multipliers offers more exact adjustment for your crossovers. Combine it with the crossover selection switch and you can configure Low Pass, High Pass or even Band Pass across all 4 channels! Talk about channels, should you want to configure the Mani 600.4 in 4 ch, 3 ch or 2 ch, the channel switch makes it simple! Enabling it, you can send RCA signal to all channels using only a single L+R signal.

The Mani 600 monoblock doesn’t have the same features due to the circuit configuration of a mono amplifier. That being said, it still offers, the same turn on features with auto detection. In addition it has an adjustable Subsonic crossover from 5 Hz ~ 40 Hz and an adjustable Low Pass from 50 Hz ~ 500 Hz. Phase issues from your subwoofer are taken care of by the built in adjustable 0 ~ 180 ° phase.
Octaves & Levels

In search of accuracy? With a 24 dB slope per octave, the Mani amplifiers offers steep attenuation from your cut off point of your crossover. Simplified, the signal output at 25 Hz will be 72 dB less than a selected 200 Hz cut off (3 octaves 200/100/50). Crossover spanning from 20 Hz all the way up to 5000 Hz, gives you the total control of your sound preference.

Both Mani amplifiers shares the same compact dimensions. Only 10.6″ x 6.45″ x 2.28″ / 26.9 cm x 16.4 cm x 5.8 cm, makes them fit everywhere. Oem installs in bikes, cars or other vehicles, might have original head units as an integrated part of the system making it hard to change. The high level feature on both Mani amplifiers handles that. The auto power on detection makes it even simpler installing these amps in oem systems. It removes the need for a 12 V remote signal.
600’s

The 600 name relates to the total power output derived from all channels. The 600.4 has a power reserve of 4 x 100 W at 4 Ω, 4 x 150 W at 2 Ω. The bridged 4 ch configuration boasts a massive 2 x 300 W at 4 Ω while still having a damping factor of over 400. Most monoblocks are stable into 1 Ω, but the Mani 600 is NOT a 1 Ω amplifier.

Which is not a drawback, as much as it is an advantage to the Mani 600. The circuit configuration is optimized for maximum power at both 4 and 2 Ω. Instead of a very common 1 Ω design, where power would be 200 W, 400 W and 600 W at 4/2/1 Ω. The Mani 600 monoblock uses a partially regulated design. Thus, the output at 4 Ω is an impressive 450 W and 600 W at 2 Ω! Making it a perfect match for all the RAGE/RAMPAGE 6.5 & 8″ woofers, even sufficient for the RIOT series of subwoofers.

SPECIFICATION 14.4V
Power @ 4 Ω: 4 x 105 w
Power @ 2 Ω: 4 x 150 w
Power @ 4 Ω bridge 14.4v < 1% THD: 2 x 300 w

SPECIFICATION

Frequency Response: 10 Hz ~ 35 KHz (+/- 2 dB)
Signal to Noise Ratio: > 90 dB
Input Sensitivity: 5 ~ 0.2 V
Crossover: 24 dB / Oct
High Pass Crossover: 50 Hz ~ 4 KHz
Low Pass Crossover: 50 KHz ~ 1 KHz
Damping Factor: >400
Power Terminal Gauge: 6 GA x1
Fuse Rating: 70 A
Operational voltage: 9 V ~ 17.5 V
Dimensions: 10.6″ x 6.45″ x 2.28″
269 x 164 x 58 MM
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SKU: 9376707829

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Agamemnon
Bozeman, US
★★★★★ 5
Excellent Essay
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Wolff is a one of the best people I know of to deliver a quick handbook to Marx. He delivers a master class on this complicated subject and I have long respected his views on economics and politics.
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Reviewed in the United States on December 15, 2025
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West Palm Beach, US
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Awesome Introduction. A quick, easy read.
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Very good overview and a quick little read! I was able to read this in a day, despite having ADHD. That, in my opinion, is a testament to the engaging, straight-forward writing style. I now feel well-versed enough in thd basics to read more in-depth texts. Highly recommended.
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M.Jones
Cuba, US
★★★★★ 4
Brief and informative
I recommend this book to anyone that is curious about what exactly Marxism or socialism is but does not care to read volumes of material from Karl Marx himself. It's a quick yet poignant look at the major points and positions of the philosopher Karl Marx and gives you reason to go further study of you desire. This book will leave the average person with enough knowledge to hold an intelligent conversation about what Marxism is. Can be read on a commute to and from work or a 2hr plane ride.
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Reviewed in the United States on September 26, 2020
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Brian Mulvey
Lake Worth, US
★★★★★ 5
The only system to replace capitalism m
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Professor Wolff has written Marxism in an easy to understand, simplified pamphlet. I have listened to many of his podcasts and he speaks very clearly and deliberately so his audience can easily understand. Highly recommended reading for all Americans.
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Kristofer Carlson
Phoenix, US
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An excellent introduction
Dr. Richard Wolff has a gift for simplifying complex material, distilling it down to its essence, and delivering it in a winsome manner. His gifts are on display here, for Karl Marx is a hard read. And yet, after reading this introduction, it is possible to catch a glimpse of hitherto unseen trains of Kark Marx's thought. After reading this introduction, it is clear that Marxism is not the same thing as Communism, or Socialism, or Fascism. Marxism is nothing more than an analysis and critique of Capitalism. That analysis and critique is used by many for their own purposes, purposes that have only a tenuous relationship to the source material.
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Reviewed in the United States on October 24, 2020

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