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400W RMS 4-Channel Class A/B BMF Series Car Amplifier
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
Connect your factory antenna to a new aftermarket radio for select 1973-2025 vehicles from Audi, Mercedes-Benz, Volkswagen
$7.99
List price $11.99
6.5" to 6.75" Speaker Mounting Adapters for select 2004-2023 vehicles from Audi, Volkswagen
$19.99
List price $33.99
Install New Speakers in select 1994-2024 vehicles from Audi, Mercedes-Benz, Chevrolet
$10.99
List price $14.99
Universal 6.5" Waterproof Silicone Rubber Speaker Baffle Ring Kit (Pack of 2)
$21.99
List price $34.99
7" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay, Android Auto
$269.99
Universal 5.25" Waterproof Silicone Rubber Speaker Baffle Ring Kit (Pack of 2)
$16.99
List price $19.99
360W Peak (120W RMS) 6.5" GTO Series 2-Way Full Range Coaxial 3-ohm Car Speakers
$117.99
List price $180.00
800W Peak (100W RMS) 6.5" Stage1 Series 2 Way Coaxial 4-ohm Speakers
$49.95
List price $89.95
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
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.
6.75" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto with Backup Camera
$329.99
600W Peak (200W RMS) 6.5” CS Series 2 Way Coaxial 4-ohm Speakers
$79.96
List price $119.99
6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto, and SiriusXM Ready
$349.99
List price $420.00
7" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay and Android Auto (SiriusXM Ready)
$329.95
List price $349.95
150W Peak (50W RMS) 3.5" Club Series 2 Way Coaxial 3-ohm Speakers
$79.95
List price $109.95
6.8" Double DIN Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay, and Android Auto (SiriusXM Ready)
$599.99
List price $750.00
480W Peak (120W RMS) 6.5” DS Series 2-way 4-ohm Coaxial Car Speakers (DSC6504)
$84.99
List price $94.99
600W Peak (200W RMS) 6.5" DB+ Series 2 Way Coaxial 4-ohm Car, Marine and Powersports Speakers
$109.00
List price $119.99
360W Peak (120W RMS) 6.5" Club Series 2-way Coaxial 3-ohm Speakers
$99.95
List price $139.95
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Manufacturer:
Model Number:
BMF400.4
Weight:
8.50lbs
Internal SKU:
bmf4004
Internal Product ID:
36203
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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.
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
6 found this helpful
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500 Amp Relay Isolator (BIR500)
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Belva Nine Function Digital Multimeter
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Universal Positive/Negative 1/0 or 4 Gauge Battery Terminal
Make installation a breeze with the XBTU
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World's Smallest AFS / Mini ANL Fuse Holder
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(23)
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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:
Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.
