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Wet Sounds 2 Channel Amplifier - SINISTER-SDX2

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Abt Model: SINISTERSDX2 UPC: 814820024616
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Regular Price: $1,479.99
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Wet Sounds 2 Channel Amplifier - SINISTER-SDX2

The Sinister amplifiers use superior performance circuitry by utilizing Wet Sounds exclusive Class D Power Supplies combined with Wet Sounds MAXED™ Power supply. The MAXED power supply is a Patented technology designed to provide high efficiency levels never thought to be achievable in a mobile audio amplifier. What this means to you. Less current draw, less strain on the electrical system, less generated heat. All this results in more play time! The Sinister amplifiers share one size full cast aluminum chassis for all models making installation a breeze and the ability to have a clean install.

All Sinister amplifiers feature a fully conformal coated 4 layers pcb board, single side power, speaker and input section, and top mounted controls with removable cover. Sinister amplifiers have a back lit Wet Sounds shield logo with selectable illumination for red, white or blue that can be mounted horizontally or vertically for flexible amplifier placement. Other features include high pass/low pass/full range crossovers, flexible inputs source selection for single or multiple RCA channel input, RCA pass through on 4ch and 2ch, and removable speaker plugs that accept large gauge wire. The sinister amplifiers are not only extremely powerful but also intelligent with a built in microprocessor controller for over voltage protection, under voltage protection, DC offset and speaker short protection, as well as thermal rollback to ensure consistent play in the harsh marine environment.


  • Maxed Power Supply
    Wet Sounds Sinister amplifiers use a unique patent pending transformer design we call MAXED that is the first of its kind in the mobile/marine audio market. Making the Sinister amplifiers one of the most efficient amplifiers ever built. Wet Sounds took it a step farther by through bolting the transformer to the heat sink and not just the pcb, resulting in a heat sink that dissipates heat from the output side as well as the transformer. This advanced construction method also results in a more robust build method for the rugged marine market.
  • Thermal Rollback Technology
    Wet Sounds thermal rollback circuit monitors the SinisterTM amplifiers temperature and adjusts the amplifiers output. The Sinister amplifiers are extremely efficient. However, marine use is the most demanding application of a 12 volt amplifier. There are times when extended listening combined with high ambient temperatures and a tight mounting can make even the most efficient amplifier work overtime. We designed the thermal rollback circuit to be automatic and seamless. The amplifier will roll its peak power output so it can lower its operating temperature. What this means for you is more play time and not having your amplifier go into thermal protection right when they party is going great.
  • Advanced Intelligent Microprocessor Control
    Think of it as a tiny supercomputer constantly monitoring everything and protecting itself from harm. The Microprocessor will put the amplifier into protection if it senses an over voltage situation or a under voltage situation or DC offset. If you damage a speaker or have a shorted wire. The amplifier will also put itself into protection. And if you go past the thermal rollback circuit, the amplifier has a second level of protection from heat and will shut itself down.
  • Top mounted crossover controls
    Wet Sounds designed the Sinister amplifier from the ground up as a true marine amplifier. Marine amplifiers are mounted to amp panels in a boat. Making it harder to access the controls. The sinister amplifiers have all the controls on the top for easy access and adjustments once the amplifier is mounted.
  • Four Layer PCB
    Massive Four layer PCB. The Sinister amplifier uses a four layer PCB to make a solid mounting platform and robust design for the power they can produce and the rugged environment
  • Remote Level Control
    Remote Level control gives you the ability to control Channels 1-2 on each amplifier. (SD2, SD4 and SD6) With a pcb mounted switch, the level control will control all channels (1-6 on the SD6 and 1-4 on the SD4) Please contact Wet Sounds for information on how to access this switch. This is useful if using a single amplifier to power multiple tower speakers or multiple subwoofers.
  • Top mount back lit 3 way LED Badge Light: Red/White/Blue. Horizontal or Vertical Placement
    The Wet Sounds shield logo badge not only looks great but provides the amplifier status through its acrylic spacer. Two screws hold the badge onto the cover plate. With the option for horizontal or vertical placement. This is perfect for those installations where you are not having to re wire or change the wiring to get the amplifiers logo straight.
  • Fully Balanced Inputs
    Fully Balanced inputs for better sound quality with less noise.
  • RCA Pass Through (SD2 and SD4)
    The SD2 and SD4 provide an RCA pass through to link to another amplifier. This means less wire and no RCA y Adapters.
  • Removable Speaker Plugs
    Sinister use Wet Sounds exclusive marine compliant removable speaker plugs designed for high power and larger GA wire. Making it easier to pre wire the terminal and plug them into the amplifier after amplifier mounting. Power and Ground are a solid connection as the Sinister amplifiers are extremely high powered amplifiers so a non removable connection is used.
  • High Level Speaker Input (requires adapter)
    Please contact Wet Sounds for information.
  • Auto Turn On Sense Capability
    In auto sense mode when the deck turns on the amp’s microprocessor will detect the deck’s output and automatically turn on the amp. Most systems will utilize a blue remote turn on lead. However if you need information on how to activate this feature, please contact Wet Sounds.
  • Marine Complaint
    Rubber gasket covering crossover controls designed to keep moisture away. Conformal coated pcb for protection against moisture. Completely sealed design for no water intrusion.
  • Built In Raised Feet
    The sinister amplifiers were designed with integrated raised side feet. This gives easy access to pull wire under the amplifier. This also raises the amplifier off the boats panel or carpet allowing air to circulate.


  • Full Range Class D Amplifier
  • Output Power (RMS) @ 1% 1000Hz 14.4V CEA 2006
  • Stereo @ 4 Ohms: 2 x 400 Watts @ 58A
  • Stereo @ 2 Ohms: 2 x 620 Watts @ 107A
  • Mono @ 4 Ohms: 1 x 1250 Watts @ 108A
  • Frequency Response: 3dB - 8 Hz - 50 kHz
  • Crossover Range High and Low Pass: 30Hz - 300Hz 12dB/Octave
  • Bass Boost: 0-12.5dB @ 27Hz - 110Hz
  • S/N Ratio (A wtg): >83dB >110dB
  • Input Sensitivity: Low Level 0.2V - 4.1V
  • Remote Level Range: 0 db to -61 db
  • 15.6V Overvolt Protection

Approximate Dimensions:

  • Width: 13.50"
  • Height: 2.70"
  • Depth: 9.82"

Approximate Weight:

  • Shipping: 13.45 lbs 

Warranty Information: 

  • Manufacturer Warranty (authorized online retailer): Limited 2-Year Parts & Labor Warranty


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