Fusion SG-DA41400 4-Channel Marine Class D Amplifier, 1400 W RMS

Fusion SG-DA41400 – 4-channel Signature Series marine amplifier, 1400 W RMS

Fusion SG-DA41400 is a powerful 4-channel Class D amplifier designed for professional audio installations in marine environments. The amplifier belongs to the renowned Signature Series and is engineered to power full-range speakers or subwoofers, offering high output power, low distortion, and a durable construction resistant to marine conditions.

Key technical specifications:

Type: Class D amplifier

Number of channels: 4

RMS power:

4 × 150 W RMS @ 4 Ohm

4 × 230 W RMS @ 2 Ohm

2 × 460 W RMS @ 4 Ohm (bridged)

Total RMS output power: up to 1400 W

Frequency response: 20 Hz – 20 kHz

Total harmonic distortion (THD): <1%

Signal-to-noise ratio (SNR): >95 dB

Output impedance: 2–4 Ohm

Operating modes: 4 / 3 / 2 channels

Functionality and integration:

Compatible with Signature, XS, and Apollo speakers

Channel bridging capability for subwoofer power

Compatible with Fusion-Link and MFD systems (Simrad, B&G, Lowrance)

Adjustable filters:

High-Pass (HPF)

Low-Pass (LPF)

Bass Boost (up to +12 dB)

Environmental resistance:

True-Marine™ certification – designed for marine environments

Housing: anodized corrosion-resistant aluminum

PCB board: protected with epoxy coating

Environmental standards:

ASTM B117 – salt fog resistance

ASTM D4329 – UV resistance

Protection rating: IPX2 (for installation in dry, ventilated locations)

Power supply and protections:

Power supply: 10.8 – 16 V DC

Recommended external fuse: 2 × 40 A

Maximum current draw: up to 60 A

Protections:

Thermal

Short circuit

Overload

Under-voltage

Connections and controls:

Signal inputs: 2 pairs RCA (low-level)

Outputs: 4 speaker channels (bridging capable)

Remote turn-on (REM): yes

Adjustments:

Input sensitivity (gain)

HPF/LPF filters

Bass Boost

Dimensions and mounting:

Length: 356 mm

Width: 210 mm

Height: 50 mm

Weight: approx. 3.3 kg

Mounting: horizontal – in a ventilated location (e.g., technical compartment)

Cooling: passive (heatsink)

Applications:

Main and zone audio systems in motorboats, yachts, and RIBs

Powering 4 full-range speakers or 2 × subwoofers in bridged mode

Advanced configurations with other Fusion Signature and Apollo amplifiers

Use with Fusion units supporting DSP and multi-zone configuration

Package contents:

Fusion SG-DA41400 amplifier

Mounting kit

Installation and safety manual

Manufacturer's warranty: 3 years (True-Marine program)