Boss Audio BX25

Boss Audio BX25

2-Way Pre-Amp Electronic Crossover w/ Remote Subwoofer Level Control

  • 2 Way Crossover
  • and Variable High pass Filter
  • Subwoofer Phase and Base Boost Control
  • Front Input
  • Front & Sub Outputs
  • Remote Subwoofer Control

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United States (lower 48 states)

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Standard Warranty

1 Year Warranty Period

Extended Warranty

Additional Years

Phase Control

The phase control feature allows you to adjust the speakers phase to ensure all audio signals are playing together rather than against each other. When bass notes are noticeably absent, a quick and easy adjustment to the phase control could provide the perfect remedy.

Subsonic Filter

A subsonic filter is designed for use on subwoofers. Since not all subwoofers can reproduce the same low frequencies, the subsonic filter can be set for optimum bass response in order to keep the driver playing efficiently.

Subwoofer Level Control

The ability to boost or attenuate the sub level when an amp and subwoofer are connected to the subwoofer pre-amp output.

Variable Bass Boost

Variable Bass Boost allows you to adjust the low bass within the boost range to just the way you like it.

Variable High Pass Filter

Variable high-pass filter gives you control over the frequencies that pass through to the full range speakers.

Wireless Remote Control

A wireless remote control gives you commanding access to the key functions of your unit from the palm of your hand.


Front & Sub
Crossover Type
2 Way
High-Pass Filter
Variable 50Hz to 1.5 kHz
Crossover Slope
12/ dB/Oct
Bass Boost Level
Variable to 12 dB
Subwoofer Phase
Switchable or 180 °
S/N Ratio > (A-Weighted)
110 dB
Channel Separation
80 dB
T.H.D. (Total Harmonic Distortion)
0.01 %
Remote Subwoofer Control
Subwoofer Level Control



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