(2) Belva BMS12RW with Belva BXD3K

12" Marine Subwoofer With Multicolor RGB Lights + Class-D Monoblock Amplifier with Bass Remote

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• Peak Power: 1000 W
• RMS Power: 400 W
• RGB Lights with Remote
• Waterproof Polypropolene Cone
• Class D 1 ohms Stable Monoblock

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Amplifier Details:

  • BX Series Class D 1 ohms Stable Monoblock Amplifier
  • Power Rating:
    • 4 ohms: 750 watts x 1 channel
    • 2 ohms: 1500 watts x 1 channel
    • 1 ohms: 3000 watts x 1 channel
    • We recommend wiring the two woofers in series/parallel
  • Total Peak power output: 3000 watts
  • Pulse Width Modulated MOSFET power supply
  • LED Power/Protect Light
  • Wired remote bass level control included
  • Soft start turn-on
  • 3-way protection circuitry (thermal, overload, and speaker short protection)
  • Input sensitivity:
    • Low level: 200mV - 8 volts
  • Frequency Response: 10 - 250 Hz
  • Total Harmonic Distortion (THD): 0.05%
  • Signal to Noise Ratio: 96 dB
  • Variable low-pass filter: 50 - 250 Hz
  • Variable Bass Boost: 0 - 18 dB
  • Fuse Rating: 120A
  • 4 AWG gauge power and ground wiring is recommended for installation.
  • Dimensions: 7.48" W x 11.02" L x 2.00" H
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Subwoofers Details:

  • 12" Dual 4-Ohm Marine Subwoofers
  • Power Handling:
    • Peak: 1000 watts
    • RMS: 400 watts
  • Multi-color RGB lights with wireless remote
  • Polypropolene Cone
  • Butly Rubber Surround
  • Frequency Response: 20 - 200 Hz
  • Sensitivity: 93 dB
  • Subwoofer Grilles Included
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty
  • Priced Individually

Specifications & Details

Amplifier Power Specifications
RMS Power @ 4 ohms
750 watts x 1 channel
RMS Power @ 2 ohms
1500 watts x 1 channel
RMS Power @ 1 ohm
3000 watts x 1 channel
Peak Power Output
3000 watts x 1 channel
Amplifier Specifications
Amplifier Class
Number of Channels
1 - Mono
Total Peak Power Output
3000 watts
Maximum Input Gauge Size
Minimum Impedance Unbridged
1 ohms
Minimum Impedance Bridged
Not Bridgeable
THD at Rated RMS Power
Speaker Level Inputs
Preamp Outputs
Built-in Crossover
Low-Pass (LP)
Low-Pass Crossover Frequency
50 - 250 Hz
Signal-to-Noise Ratio
96 dB
Bass Boost
0 - 18 dB
Remote bass/level controller
Fan Cooled
Fuse Rating
40A x 3 
CEA-2031 Compliant
Subwoofer Specifications
BX Series
Number of Subwoofers
Subwoofer Size
Voice Coil(s)
Impedance (Per Voice Coil)
4 ohms
RMS Power Handling
400 watts
Peak Power Handling
1000 watts
Woofer Surround
Butyl Rubber
Woofer Composition
93 dB
Frequency Response
10 - 250 Hz
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Item Details


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Customer Ratings & Reviews

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Customer Reviews

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The following review is for BXD3K, which is a part of the bundle you are viewing.

At just over 100 bucks you're getting an honest 1300watts rms into 1ohm. I wish amp makers would just say that these days. They're giving away at least 10 watts per dollar these days vs the olden days when 1watt costed around $1.35 and were no where as efficient or compact.

Beware: there's no subsonic filter.

By Gary on March 10, 2022


found this helpful.

Great product for the price. Definitely recommend..

The following review is for BXD3K, which is a part of the bundle you are viewing.

I was shocked how well it's works. For the price u will definitely be amazed.. I got it hooked up to a 12 inch Memphis mojo in my 96 Yukon. It's sounds really good. People think I have 2 12s instead of 1.

By Reginald on July 28, 2023 checkmarkIcon Verified purchase


found this helpful.

Impressive handling and response from a Budget Sub

The following review is for BMS12RW, which is a part of the bundle you are viewing.

Right out of the delivery box and into a prefabricated 1.7cuft slotted enclosure with a 120Watts this budget friendly marine rated sub hit some pretty impressive and authoritative lows. Listening to a bass heavy track, 120 watts in 2 Ohm configuration was enough power to rattle the windows of my living room; with a bit of concern (for the windows of course).
I like the clean white woofer with thick quality feeling black rubber surround. the cone has almost a matte/flat finish. to hook up the LED to a 12v source drill a small hole in the terminal plate of the enclosure to run 12v line into the enclosure. drill another hole in the lip of the baffle that aligns with the opening on the woofers mounting lip. epoxy the holes after the +- wires have been routed.

my only gripe is with the placement of a rectangular hole in the rim of the basket for the LED grill power. There is about 1/8th" for contact between the edge of the hole and the seating rim of the sub against the enclosure. a weak spot for sure when generating significant air pressure in a box. though perhaps some removable sealing compound could work to make up for this design quirk.
Note: terminals won't accept 8g wire ferrules.
Overall though, this clean simple sub is one that I feel will last years.
Happy Bassn'!

By Dylan on October 13, 2022 checkmarkIcon Verified purchase


found this helpful.


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