BMF CLASS D AMPLIFIERSRS
FEATURESSPECIFICATIONS
Class "D" Technology
Fully 1 Ohm Stable Operation
Military Spec Audiophile Grade Components
High Efficiency PWM Power Supply
MOSFET Input and Output Transistors
Oversized Capacitor Banks
Discrete Mount Power and Speaker Terminals
Variable Lowpass Electronic Crossover
Variable Subsonic Filter
RCA Preamp Output
Built in Bridging Module
5 Way Protection Circuitry
Soft Remote On/Off Circuitry
Digital Subwoofer Level Control
Two Year Limited Warranty
MODEL: | BMF1000D | BMF600D |
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RMS Power / 4 ohms @ 0.08% T.H.D. | 250W x 1 | 150W x 1 | |
2 ohms @ 0.4% T.H.D. | 500W x 1 | 300W x 1 | |
1 ohm @ 1 % T.H.D. | 1000W x 1 | 600W x 1 | |
Efficiency / Typical | 86% | 86% |
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Worst Case | 72% | 72% |
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Bandwidth + 3dB | 10Hz – 250Hz | 10Hz – 250Hz | |
Signal To Noise | >90dB | >90dB | |
Damping Factor | 200 | 200 |
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Input Sensitivity | 240 mV – 6V | 240mV – 6V | |
Input Impedance | 20K ohms | 20k ohms | |
Circuit Breaker / fuse | 120 Amp | 60 Am p | |
Dimensions | 9.3”W x 2.1”H x 13”L | 9.3”W x 2.1”H x 10.5”L | |
CROSSOVER |
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Low Pass | Variable 50 – 250Hz |
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12dB |
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Variable Subsonic Filter | Variable 20 - 50Hz @ 12dB |
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Preamp Crossover | Variable 50 – 250Hz |
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Preamp output |
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All specifications are with 12.5 volts DC. Typical output with 14.4 volts DC is 20% higher.
IMPORTANT
Please read all instructions before installation!
The quality of installation may affect the performance and reliability of your Crossfire product. If you have any doubts or questions regarding installation, you may wish to contact your authorized Crossfire dealer. Remember to follow all wire and fuse requirements suggested in this manual. Warranty may void if proper installation technique is not used.
OPERATION
Both the Crossfire BMF1000D and BMF600D are single channel, dedicated subwoofer amplifiers. Unlike other Crossfire BMF amplifiers, both these amplifiers operate as a single channel, therefore one amplifier cannot be bridged by itself. Do not be fooled by the two sets of speaker outputs. Two outputs are provided strictly for convenience and are paralleled internally on the circuit board of the amplifier. This means that if both outputs are used with one driver each, the amplifier sees the same load as if the same two drivers are connected to only one output terminal.
In both diagrams, the
amplifier sees a 2 ohm load
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| PWR |
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| PWR |
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| PRT |
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| PRT |
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- | + | - | + | +12 | REM | GND | - | + | - | + | +12 | REM | GND |
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| SPEAKER |
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| POWER |
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| SPEAKER |
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| POWER |
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- | - | - | - |
+ | + | + | + |
4 ohm subwoofer | 4 ohm subwoofer | 4 ohm subwoofer | 4 ohm subwoofer BMF D AMPS |
