Fusion SG-DA12250 Marine Monoblock Amplifier Signature Series 2250 W

Fusion SG-DA12250 – Signature Series 2250 W RMS Marine Monoblock Amplifier

The Fusion SG-DA12250 is a Class D marine monoblock amplifier designed specifically to power subwoofers in advanced onboard sound systems. It belongs to the prestigious Signature Series, which offers high power, exceptional sound quality, and full resistance to the marine environment. Thanks to its Class D operation, it provides high energy efficiency and effective cooling with minimal power loss.

Technical specifications

Type: monoblock amplifier (1-channel)

Class: D

RMS Power:

1300 W RMS at 4 Ohm

2250 W RMS at 2 Ohm

Frequency response: 20 Hz – 250 Hz

Total harmonic distortion (THD): <1%

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

Output impedance: 2–4 Ohm

Filter modes:

Low-pass filter (LPF): 40–250 Hz

Subsonic: 20–50 Hz

Bass Boost: up to +12 dB at 45 Hz

Compatibility and integration

Designed to work with Fusion Signature Series and Apollo subwoofers

Compatible with Fusion control units with DSP and Fusion-Link

Adapted for 12 V DC power systems

Ideal for single- or multi-zone configurations with independent low-frequency channel

Environmental resistance

Housing: anodized corrosion-resistant aluminum

PCB coating: moisture and salt fog protection

Environmental standards:

ASTM B117 (salt fog)

ASTM D4329 (UV radiation)

Certification: True-Marine

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

Power supply and protections

Power supply voltage range: 10.8 – 16 V DC

Recommended protection: 2 × 80 A fuses (external)

Maximum current draw: up to 90 A

Protections:

Overload

Short circuit

Thermal

Under-voltage

Connections and controls

Signal input: RCA (1 pair)

Output: 1 × mono

Remote turn-on (REM): yes

Adjustments: input level (gain), LPF, subsonic filter, bass boost

Dimensions and mounting

Length: 360 mm

Width: 210 mm

Height: 60 mm

Weight: approximately 3.6 kg

Cooling system: passive (heatsink)

Mounting: horizontal, internal, ventilated location (e.g., technical room)

Applications

Professional audio systems on yachts, motorboats, catamarans

Dedicated low-frequency channel to power one or more subwoofers

Single- and multi-zone configurations with independent bass management

Complement to multi-channel Signature and Apollo amplifiers

Package contents

Fusion SG-DA12250 amplifier

Mounting hardware

Installation manual

Warranty: 3 years (True-Marine program)