DS18 GFX-8K1 PRO Full-Range Class D 1-Channel Monoblock Amplifier 8000 Watts Rms 1-Ohm

The DS18 GFX-8K1 is a 1-channel Full-Range Class D monoblock amplifier delivering 8000W RMS into 1 Ohm, built for high-demand subwoofer applications in a compact chassis. Its full-bridge design, robust cooling, and high-current capability are aimed at serious car audio enthusiasts who demand both power and precision.

• RMS Power @ 1 Ohm (14.4V): 8000W — provides sustained, high-current output into a 1-Ohm load for demanding subwoofers, enabling deep, muscular bass.
• Class D, 1-Channel Monoblock: single-channel design optimized for subwoofer drive with efficient power delivery in a compact form factor.
• Power at 4/2/1 Ohms: 3500W @ 4 Ohm, 14.4V; 5000W @ 2 Ohm, 14.4V; 8000W @ 1 Ohm, 14.4V — shows the escalating current capability as impedance decreases, useful for tough bass demands.
• Speaker Impedance Range: 1–4 Ohm — supports a range of subwoofers and configurations within a single amplifier.
• Frequency Response: 15 Hz – 20 kHz — covers deep bass down to high frequencies for a full-range feel when used with appropriate drivers.
• Low/High Pass Filters: Low Pass 50 Hz – 20 kHz; High Pass 15 Hz – 2 kHz — lets you tailor the tonal balance and crossover behavior to your install.
• Bass Boost: 0 – 12 dB; Bass Frequency 35 Hz – 70 Hz — enables tightening or expanding bass presence to suit enclosure tuning and listening preference.
• Signal Input: Low-level Input 0.5V – 8V; High-Level Input: Not present — requires RCA-level signals from a head unit or processor.
• Protection: Clipping, Thermal, Overload, Impedance, Short-Circuit, and Voltage Failures protection — designed to guard against common fault modes in mobile environments.
• Voltage/Power Specs: Operation Voltage 9 – 15V; Fuse Rating 800A — supports typical vehicle electrical systems with a robust protection scheme.
• Connectors: Power Input Size 1/0 GA; Speaker Output Size 8 GA — geared toward high-current, heavy-duty installations.
• Dimensions: 15.35" x 9.29" x 2.83" — compact footprint suitable for under-seat, trunk, or custom enclosures.
• Subsonic: Subsonic Frequency N/A — no dedicated subsonic filter present in this model.
• Build features: Heavy-duty heatsink and intelligent cooling system — helps maintain performance under demanding bass sessions.
• Level Control: Included level control knob for on-the-go adjustments — makes fine-tuning easier without needing additional remote hardware.

Benefits: The GFX-8K1 shines in high-power subwoofer rigs where a single, rugged 1-Ohm channel is needed to drive substantial bass with stability. The built-in HPF/LPF options, adjustable bass boost, and level knob let you dial in a clean crossover and bass presence to integrate with your other speakers. Its protective features and heavy heatsinking support reliable, long-duration performance in demanding road conditions, while the 1/0 GA power input and 800A fuse ensure the amplifier can draw the current required by large subs without sagging.