• The G4000.5D balances power and finesse, enhancing any custom setup while ensuring equipment safety with advanced protective features
• Customize your audio experience with adjustable filters and a Remote Level Control Knob
• This amplifier provides professional-grade sound quality through rigorous testing with AP Instruments
• The G4000.5D elevates your audio system to new heights with meticulous craftsmanship
• Flexible Input Configuration Built-in input selector lets you switch between 2, 4, or 5-channel setups for easy system integration.

This Listing Includes:

• (1) DS18 G4000.5D 5-Channel Full-Range Class D Amplifier


• (1) Remote Bass Control / Crossover Knob

Product Overview:

Take full control of your car audio system with the DS18 G4000.5D, a powerful and compact 5-channel amplifier engineered for high-performance builds. Delivering a total of 4000 watts peak and up to 900 watts RMS on the subwoofer channel, this amp offers unmatched flexibility, clarity, and control. Whether you're running a full speaker system with a dedicated sub or planning a hybrid configuration, the G4000.5D gives you professional-grade power in one efficient, Class D package.

Designed with adjustable high-pass and low-pass filters, bass boost, and remote level control, this amp makes it easy to dial in your ideal sound. Featuring protection, clip, and power LED indicators, you'll stay informed at a glance. Built with surface-mount components and a sleek matte black finish, it’s ready to integrate seamlessly into any custom install.

Power Output:

• 4 x 130W @ 4 Ohm + 1 x 300W @ 4 Ohm Sub


• 4 x 220W @ 2 Ohm + 1 x 600W @ 2 Ohm Sub


• 2 x 420W @ 4 Ohm Bridged


• 1 x 900W @ 1 Ohm Sub

Key Features:

• Class D 5-Channel Full-Range Amplifier


• Frequency Response: 20Hz–20kHz


• Bass Boost: 0–12 dB fixed @ 45Hz


• HPF/LPF Filters (HPF: 10–250Hz | LPF: 50–250Hz)


• Infrasonic Filter: 10–50Hz


• Signal-to-Noise Ratio: >90 dB


• Total Harmonic Distortion (THD): 0.01%


• Input Selector: 2 / 4 / 5 Channel

Built-In Protection Systems:

• Short Circuit, Overload, Thermal, DC Output, and Voltage Protection


• LED Indicators for Power, Clip, and Protection Status

Design & Build:

• Sleek matte black finish


• Surface-mount component technology


• Remote bass knob included


• 4 AWG Power Terminals | External 160A Fuse Recommended

Dimensions & Weight:

• Length: 12.8"


• Width: 4.72"


• Height: 1.96"


• Weight: 2.2 kg (Approx. 4.85 lbs)