Perfect for trucks or cars or anything with limited space the Massive Audio BOOM 88 Powered Hideaway Subwoofer displays a fine balance between high performance, accurate sound reproduction and reliability! This easy to install active subwoofer will provide the perfect amount of clean yet powerful bass to your system. Massive Audio is known worldwide for their 8″ subwoofer design and these will not disappoint!

Additional features like ATO (automatic turn on) lets you tap into the speaker leads with the optional UW-1 (High level RCA adapter) or HI-LOW (high low converter) instead of using the headunits RCA’s and will automatically turn on the unit when the radio is on. Add a 180 degree phase shift and bass boost; what else can you ask for in an active subwoofer. GAIN REMOTE INCLUDED!

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  • 4 Ohm 400 Watts Max Power / 200 Watts RMS
  • Class-D Design 
  • Built-In OEM Hi Level Inputs (optional UW-1 required) 
  • Heavy Duty Aluminum Heatsink
  • Hi-Fi Capactior Filters for Cleaner Sound Reproduction
  • Variable Low Pass Crossover: 50Hz ~ 150Hz @ -3dB
  • Ground Loop Isolator
  • Up to 9 Volt Input via RCA or High Level Speaker Leads
  • Bass Boost 0dB ~ 12dB @ 45Hz
  • Built-in Noise Reduction Circuitry
  • Full MOSFET with High Grade Switching Devices
  • Built-In, DC Offset, Auto Sensing Turn On Function (Hi-Level Inputs)
  • 12V Remote Output for External Devices (Hi-Level Inputs)
  • Variable Low Pass Crossover Frequencies from 50Hz ~ 750Hz
  • Ground Loop Isolator
  • Next Generation Advanced 5 Way Protection Circuitry
  • High Output Power Supply & Dual Output Voltage
  • Mil Spec PCB with SMD parts
  • World Wide Standards Compliant (RoHS, E-Mark, CTA-2006, CE)


Peak Output Power @ 14.4V 400W x 1
1 Ohm RMS n/a
2 Ohm RMS n/a
4 Ohm RMS 200W x 1
4 Ohm Bridged n/a
Input Level 0.2~9.0v
Freq. Response 50Hz~150Hz @ -3dB
THD at 4 Ohm Load 30% Rated Power <0.1%
S/N Ratio >90dB
Bass Boost 0~6dB/12dB (45Hz)
Minimum Load 4 Ohm Mono
Gain Remote UR1 (Included)
Dimension 2.8″H x 9.8″W x 13.4″L


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