BLX5-M - 120 Watts RMS x 4 + 600 Watts @ 2 Ohm Full Range Bluetooth 5-CH Marine Amplifier

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$ 499.95

Massive Audio NANO "BLX5-M" Amplifier with Bluetooth Audio Streaming comes dressed in a silver heat sink with stainless-steel end caps and a blue backlit logo. The BLX5-M Five Channel circuit board is treated with Dura-Coated 320°F Epoxy for water resistance.

Powerful and TINY only 4.25” W x 1.6” H x 12.17" L. It’s full range 5 channel digital platform design offers a built In OEM Line Converter that can take up to 9V in which activates the Auto Turn On (no turn on wire needed). The switched 12V out can activate additional system products if needed.

an onboard SATA1 input accommodates the optional UBT1 Bluetooth Dongle for audio streaming and there is a remote bass gain control input for use with the optional UR1The BLX5-M also has a "Docking Port" to plug in an optional Railcap Booster (RCLX).   

Accessories include MOLEX-to-RCA & MOLEX-to-High Level Leads depending on if you are using a source unit with or without RCA outputs. 



  • Extreme Power with Mini Compact Footprint
  • Full Range Digital Design 
  • Conformal Dura-Coated 320°F Epoxy PC Boards to resist Moisture, Dust and Extreme Heat
  • 4 Layer PCB design with SMD parts
  • Built-in Noise Reduction Circuitry
  • Full MOSFET High Grade Switching Devices
  • Bluetooth Audio Streaming with optional UBT1 Dongle
  • Built-in Auto Sensing Turn On/Off Function (Hi-Inputs)
  • 12V Remote Output for External Devices (Hi-Inputs)
  • -3 ~ + 12DB Variable Bass Boost 40 Hz - 200 Hz
  • Advanced 5 Way Protection Circuitry
  • RCLX ~ Railcap Booster (Optional)
  • World Wide Standards Compliant (RoHS, E-Mark, CTA-2006, CE)
  • UR1 Bass Remote Gain Control Input (optional)


    Peak Output Power @ 14.4V 480W x 2 + 1200W Max
    1 Ohm RMS n/a
    2 Ohm RMS 240W x 4 + 600W
    4 Ohm RMS 120W x 4 + 300W
    4 Ohm Bridged 480W x 2 + 300W
    Input Level 0.2~9.0v
    Freq. Response 10Hz~25KHz
    THD at 4 Ohm Load 30% Rated Power <0.03%
    S/N Ratio >90dB
    BassBoost -6~12dB (Woofer Channel)
    Minimum Load 2 Ohm Stereo
    Gain Remote UR1 Gain Remote (Optional)
    Dimension 1.6"H x 4.25"W x 12.17"L

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    • How do you wire 2 X 4ohm Subs in parallel? Use both sub speaker outputs? Or wire both subs to the first sub output?

      For Dual voice coil subwoofers it is best to connect the wires of each subwoofer together first before you connect them to the amplifier so that you are left with 1 Positive cable and 1 negative cable that you connect to the amplifier.