Take your outdoor audio system to the next level with the Diamond Audio 4-Channel Full Range Class D Waterproof Amplifier, engineered for marine, motorcycle, ATV, UTV, and off-road applications. Built to perform in the harshest environments, this IPX67-rated waterproof amplifier delivers powerful, clean sound with exceptional durability and reliability.

Designed with advanced full-range Class D digital technology, the Diamond Audio 4-channel marine amplifier provides impressive output with 125W x 4 at 4 ohms, 200W x 4 at 2 ohms, and 400W x 2 bridged at 4 ohms. This makes it ideal for powering full-range speakers or bridging channels for higher output applications, delivering clear highs, detailed mids, and dynamic performance across the entire frequency range.

Engineered for rugged use, the IPX67 waterproof amplifier features conformal-coated multi-layer circuit boards, protecting internal components from water, dust, and environmental exposure. Whether installed in a boat, motorcycle, or off-road vehicle, this marine-grade amplifier ensures long-lasting performance in extreme conditions.

The Diamond Audio 4-channel waterproof amplifier also includes balanced differential inputs for noise-free signal transmission and a wide frequency response (10Hz–33kHz) for accurate sound reproduction. With variable crossovers (40Hz–400Hz) and selectable LPF / FULL / HPF modes, this amplifier allows precise system tuning to match your audio setup.

Installation is simple with selectable 2-channel and 4-channel input modes, along with REM, VOX, and DC turn-on options, ensuring compatibility with factory and aftermarket head units. Additional features such as power and protection LED indicators and built-in short circuit, thermal, and voltage protection provide reliable operation and system monitoring.

Key Features:

• 4-channel full range Class D waterproof amplifier
  
• IPX67-rated for marine and outdoor applications
  
• 125W x 4 @ 4Ω / 200W x 4 @ 2Ω / 400W x 2 bridged @ 4Ω
  
• Balanced differential inputs for clean signal
  
• Selectable LPF / FULL / HPF crossover modes
  
• 2CH / 4CH input flexibility
  
• Short circuit, thermal, and voltage protection
  
• Compact, durable design for easy installation
  
• LED power and protection indicators

The Diamond Audio 4-Channel Waterproof Amplifier delivers powerful, reliable, and crystal-clear sound, making it the perfect solution for marine and powersports audio systems that demand performance and durability.

Specifications:

• Power @ 2Ω: 200W RMS x 4
  
• Power @ 4Ω: 125W RMS x 4
  
• Power @ 4Ω Bridged: 400W RMS x 2CH
  
• Total Harmonic Distortion: <0.3%
  
• S/N Ratio (1W@4Ω): >-102dB
  
• Gain Range: 0.2v-10v
  
• Crossover Range: 40Hz-400Hz
  
• Frequency Range: 10Hz-33KHz
  
• Current Draw Full Power (Music): 93A (9.3A) AVG
  
• Fuse Rating: 45A
  
• Dimensions: 11.8”x4.3”x1.7” (298.6mm x 110mm x 44.0mm)
  
• Power & Protection Led Light Status Indicator
  
• Short Circuit, Thermal and Voltage Protection
  
• Selectable X-Over: LPF/FULL/HPF
  
• Selectable Input Modes: 2CH/4CH
  
• IPX67 Rated

Shipping Policy

DBs Car Audio is proud to offer fast & free shipping on all items listed in our store!!

Shipping Methods and Transit Times

DBs Car Audio ships orders from our Kissimmee, Florida location. On occasion, orders will be fulfilled directly by the manufacturer or distributor in order to reduce the shipping time..

Order Tracking

Once an order has been shipped, we send our customers an email with the tracking number for the order. Click on the tracking link in the email to follow the location of the package on the carrier's website. If you did not receive a tracking number by email or need to confirm the tracking information, please contact call us at 1-800-927-9390

Signature Required

Due to the valuable contents of some shipments, DBs Car Audio will only require a signature upon delivery if the order is over $500. Such guidelines will not be overruled upon the customer's request. Please understand that this is a security measure taken by our Company to ensure the safe delivery of each package and guarantee excellent service. Many of our third-party shipping carriers and payment companies require signatures upon delivery to protect against fraud and theft. Customers may request a signature upon delivery by emailing us at dbscaraudiofl@gmail.com.

Shipping Policy Disclaimer

Delivery estimates do not apply to items shipped directly from the manufacturer, nor out-of-stock items. Some items that ship from the manufacturer can only be delivered to addresses within the 48 continental states.

Standard delivery time for domestic customers will average from 2-4 business days, but can take longer in some cases. Saturday, Sunday and national holidays are not considered business days for delivery purposes.

Our Shipping Guarantee applies only to shipments delayed due to our service failure. We will not guarantee shipments that are delayed due to an act of god (ex: weather), a catastrophic event, or failure by our delivery partners. Our guarantee is also voided if incorrect billing or shipping information is given and results in your order being delayed to its destination. Our guarantee is also void if no one is available to sign for shipment when delivery attempt is made if a signature is required.