SKU: 9376707829

B2 Audio MANI 600.4 - 4 Channel Amplifier

Sale price$152.55 Regular price$169.50
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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
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: 9376707829

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4.2 ★★★★★
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princeton von d
Fort Morgan, US
★★★★★ 3
Chicken Flavor Good, But 🔄 Rotation-Resistant✖; Best for Simpler Chewers
Size: X-Small, Color: Ring Bone, Size: X-Small, Color: Ring Bone
🐾 Hi, I’m PVD; plush sophisticate, chew critic, and active curator of rotational toy relevance. This ring bone and I never fully bonded. I sampled it maybe five times in my entire puppyhood before quietly returning it to the bin (with a single judgmental glance). Still, it does have value for the right pup. ⭐ Why I originally wanted to love it: ✔️ XS size works well for very young puppies ✔️ Chicken flavor lasts impressively long ✔️ Freezing offers temporary gum relief ✔️ Durable and safe; no odd odors or shredding 🌀 Why it’s now a respectful 3-star chew in my rotation: ✘ Never became a go-to toy (5 uses max in my life) ✘ Ring shape felt awkward, not natural or chic; hard to grip and maneuver ✘ Texture too tame vs. nubs or detailed chew surfaces ✘ When I was smaller, I much preferred the Nylabone Baby Blue Bone Chew Toy with nubs (my personal classic), and have since matured into nightly Nylabone “Nubz” edible bones This Ring Bone is Best For: • Very young puppies with minimal chew preferences • Dogs who like simple textures and circular shapes • Those just starting enrichment chew play • Freezer treat rotations (briefly) 🚫 Not ideal for: picky pups, advanced chewers, or dogs who analyze toy ergonomics (like myself). 📝 Final Re-Barks: A strong, well-made chew, but lacked the intrigue to make my permanent rotation. Works for basic chew enjoyment; not for pups with elevated taste or toy ambition. — PVD (Chew Strategist, Textural Analyst & Aspire-to-Vine Reviewer 🐶💼)
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Reviewed in the United States on September 17, 2025
K
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Kaitlynne Lynch
Omaha, US
★★★★★ 5
Puppy loves it!
Size: X-Large, Color: Teething Bone, Size: X-Large, Color: Teething Bone
My small puppy loves this bone! I originally purchased this for a larger dog, but my small 10 pound puppy loves it more. It’s good quality and a softer material for puppies!
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Reviewed in the United States on May 10, 2026
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Jesse Arner
Los Angeles, US
★★★★★ 4
A hit, but could be stronger
Size: Medium, Color: Ring Bone, Size: Medium, Color: Ring Bone
Gave this to my 11 week old pittie, and she did significant damage within 15 mins. She left a pile of chewed bits on the couch but thankfully didn't eat them. Definitely don't leave unsupervised. That said, she LOVED it and it seemed to help her teething gums so, I'm still giving it a 4/5 Puppy pics for tax
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Reviewed in the United States on June 3, 2026
A
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Amazon Customer
San Leandro, US
★★★★★ 5
FOR SHORT TIME USE
Size: X-Small, Color: Ring Bone
My puppies love this. After a couple of weeks, it is worn so I throw it out and buy another since it's reasonably priced. I don't want them to actually ingest a chunk of this.
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Reviewed in the United States on April 11, 2026
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Brandy B
Bozeman, US
★★★★★ 5
Great for our puppy
Size: X-Small, Color: Ring Bone
This chew toy has quickly become our puppy’s absolute favorite. She’s just starting to teethe, and keeping her busy and comfortable has definitely been a challenge, but this ring has been a lifesaver. She was interested in it right away and keeps coming back to it on her own, which is a huge win. The chicken flavor seems to really hold her attention, and it gives her something appropriate to chew instead of everything else. It’s the perfect size for a very young puppy and easy for her to hold and gnaw on without getting frustrated. It keeps her occupied, helps soothe her gums, and gives us a much-needed break during those teething moments. If you have a puppy just starting the teething phase and need something safe, durable, and engaging, this is an excellent choice and one I’d happily buy again.
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Reviewed in the United States on February 6, 2026

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