DOUK AUDIO G7 Integrated Amplifier PFFB Audio Selector Switch 2xTPA3255 2x300W/4x150W 4 ohms

The Douk Audio G7 is a high-power Class D integrated amplifier combining HiFi amplification, audio selector, and speaker switch functionality in a compact and modern format. Based on an architecture using two TPA3255 amplification chips, it can operate in both stereo 2.0 mode and 4.0 channel mode, delivering up to 2x300W at 4Ω or 4x150W at 4Ω + 4Ω depending on the selected configuration. It integrates an internal 48V / 10A GaN power supply, three OPA1612 operational amplifiers, as well as an NJW1194 volume and tone controller, ensuring powerful, detailed, and controlled sound reproduction with extremely low distortion of only 0.002% and a signal-to-noise ratio greater than 112dB.

The G7 also benefits from PFFB (Post Filter Feedback) technology, allowing it to eliminate the load dependency typical of traditional Class D amplifiers and improve stability as well as sound quality with different speakers. Compatible with speakers from 4Ω to 8Ω, it features two groups of RCA inputs as well as a balanced TRS + XLR combo input, ensuring excellent compatibility with DACs, streamers, and professional audio sources.

On the output side, the G7 offers two groups of speaker terminals, usable either switchably or simultaneously to perform A/B tests, power two listening zones, or create a 4-channel configuration. It also integrates bass/treble tone adjustment over a ±10dB range, a bypass mode completely disabling the tone and volume circuits for pure power amplifier operation, as well as an instant mute function. The package is completed by large retro-style blue backlit analog VU meters with AGC, a 12V trigger input, a full-featured remote control, and a robust aluminum chassis. Powered by AC 100-240V, the G7 measures 275 x 190 x 78 mm and weighs 3.34kg, offering a powerful and versatile solution for both home HiFi and desktop setups.