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Crossfire BMF400.4

400W RMS 4-Channel Class A/B BMF Series Car Amplifier

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BMF Series 4-Channel Class A/B Car Amplifier • 50W RMS x 4 Chan. @ 4 Ohm • 100W RMS x 4 Chan. @ 2 Ohm • 200W x 2 Chan. @ 4 Ohm Bridged • MOSFET Power Supply • Variable High and Low-Pass Crossovers • Variable Bass Boost

Learn more about the bmf4004

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Product Highlights


BMF Series 4-Channel Class A/B Car Amplifier • 50W RMS x 4 Chan. @ 4 Ohm • 100W RMS x 4 Chan. @ 2 Ohm • 200W x 2 Chan. @ 4 Ohm Bridged • MOSFET Power Supply • Variable High and Low-Pass Crossovers • Variable Bass Boost

Description


Accurate Power with Crossfire

Sonic Electronix is excited to be carrying Crossfire's BMF Series Amplifiers. Available from 2-Channel to Monoblock configurations, making them perfect for any application and situation. Rated at 12.5V, instead of the industry standard of 14.4V, gives these amplifiers accurate and reliable power ratings. No need to worry about voltage drop or over-stated power ratings with BMF Series amplifiers. Variable low pass and high pass electronic crossovers allow for complete control for fine tuning of your car audio system. BMF amplifiers feature Military spec. audiophile grade components, increasing the efficiency, reliability and performance. The 5-way protection circuity and soft start features protect both the amplifier and devices being amplified from any electrical surge, overload, or thermal overheating. With this feature you can rest assure that your system and vehicle will always be safe. If you are looking for an accurate, reliable, clean and efficient amplifier, Crossfire's BMF series amplifiers are the way to go.

  • BMF Series 4-Channel Class A/B Car Amplifier
  • RMS Power Rating: (12.5V)
    • 4 ohm: 50 watts x 4 chan.
    • 2 ohm: 100 watts x 4 chan.
    • Bridged, 4 ohm: 200 watts x 2 chan.
  • Total power output: 400 watts RMS.
  • High efficiency MOSFET power supply
  • LED power (green) indicator
  • Variable Bass Boost (0 to +12 dB at 45Hz)
  • Soft Start, on/off circuitry
  • Simultaneous Mono/Stereo operation capability
  • Military spec. audiophile grade components
  • Multi-stranded power toroid
  • High-efficiency Bipolar output transistors
  • Wire free PC Board layouts
  • Over-sized capacitor bank
  • Variable high-pass and low-pass electronics crossovers
  • 4/3/2 channel operation
  • Preamp RCA outputs to daisy chain multiple amps
  • 5-Way System Protection circuitry
  • Heavy duty aluminum alloy heatsink for extreme heat dissipation
  • Nickel-plated RCA level inputs
  • Nickel-plated screw terminals
  • Input sensitivity:
    • Low level: 0.15V-6V
  • Full-range crossover filter
  • Variable high-pass filter (50-250 Hz)
  • Variable low-pass filter (50-250 Hz)
  • Dimensions: 12-3/16"L x 8"W x 2-3/8"H
  • 4 gauge power and ground wiring is required for installation. Contact us for information regarding a discount on select amplifier kits when purchased together with this amplifier.
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

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Specifications & Details


Power Specifications - Full Range Channels
RMS Power @ 4 ohms
50 watts x 4 channel
RMS Power @ 2 ohms
100 watts x 4 channel
RMS Power @ 1 ohm
Not Stable
Bridged RMS Power
200 watts x 2 channel
Amplifier Specifications
Amplifier Class
A/B
Number of Channels
4-Channel
Total RMS Power Output
400 watts
Maximum Input Gauge Size
4 AWG
Minimum Impedance Unbridged
2 ohm
Minimum Impedance Bridged
4 ohms
Speaker Level Inputs
No
Preamp Outputs
1 pair
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
Full (AP)
High-Pass Crossover Frequency
50 - 250 Hz
Low-Pass Crossover Frequency
50 - 250 Hz
Bass Boost
0 - 12 dB
Remote bass/level controller
No
Fuse Rating
30A x 2 
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

BMF400.4

Weight:

8.50lbs

Internal SKU:

bmf4004

Internal Product ID:

36203

Product and How-to Videos


Customer Ratings & Reviews


Crossfire BMF400.4 thumbnail image

5 star
100%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
5
Value
4.5
Features
4
Design
5
Usability
5

Customer Reviews

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Great Amp

One of the best amps out right now I believe they do rated at 12.5 and at 14.4 you'll see a significant increase in power on the mono series and multi channel ones. My mid's and high sound crisp clear and loud off of this amp will definitely continue to use crossfire.

By Dj on June 17, 2011

7 found this helpful


Very STRONG amp

This is a clean sounding, very strong 4 channel amp. Just look at the 90 amp fuse rating compared to the others

No bridge switch, so bridging the amp is as easy as putting the wires in the proper terminals

Amp is rated at 12.5, which is a big plus

Just one thing to be aware of is that the built in crossovers don't have an x10 multiplier, so you can't run active without an external crossover

By Chris on March 16, 2013

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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.