PSG Audio AM-G18 - 750W 4-Ohm Subwoofer Amp Module (Replacement for Goliath 18)

This is a high-quality subwoofer amplifier board featuring a high-efficiency half-bridge power supply with 115V and 230V selector switches, making it suitable for worldwide use. It provides a large power margin, and its ripple is significantly lower than that of traditional transformer power supplies. The amplifier output uses high-grade components, delivering a true 750W RMS at 1% distortion with outstanding control.

The preamp stage incorporates advanced technology used in modern subwoofer design, including a dynamic frequency selector for high speed, strong drive capability, and excellent control. A built-in low-cut filter removes frequencies below 40Hz and concentrates energy in the 40Hz–160Hz range, resulting in deep, powerful, and energetic bass.

Additionally, the amplifier board includes both phase-inverted and sealed-subwoofer modes, ensuring optimal performance with different subwoofer configurations. Built with solid materials and an aluminum backplate, it operates with virtually no noise. This is a premium subwoofer amplifier board ideal for home theater systems.