DoukAudio 600W 2/4 Channel Amp: 3-IN-2-OUT Speaker Selector | Digital Amplifier for DMP-A6 with Dual TPA3255 | Balanced XLR RCA Inputs | Tone Bypass | VU Meters | Remote for Home Theater Speakers (G7)

Powerful, flexible, and visually stunning. The G7 features dual TPA3255 chips, 2 sets of speaker output, balanced input, volume & tone bypass and large VU meters. Paired with a 12V trigger, remote control, and instant mute, it is ultimate choice for all audiophiles crafting their dream audio system. The G7 was engineered to meet audiophiles' need for flexible speaker output, building a simplified yet powerful audio system. Paired with Post-Filter Feedback (PFFB) technology, eliminates load dependency, enhancing performance and sound quality significantly Switch or run both speaker pairs at once, ideal for A/B testing or dual zones. Supports dual RCA and XLR+TRS combo inputs for seamless switching and pristine, noise-free audio. Delivers up to 300Wx2/150Wx4 power with excellent clarity and dynamics. ±0.1dB channel matching and 120dB crosstalk rejection for mastering-grade signal integrity Sustains 480W continuous clean power, achieving about 95% efficiency and low ripple performance. Vintage analog meters with AGC and gain indicators deliver stylish signal monitoring in real time. Automatically powers on/off connected devices for hassle-free, synchronized operation. Fine-tune your ideal sound with separate bass and treble knobs. Easily disable volume and tone circuits to enjoy the original, uncolored audio. Easily manage all settings from afar—adjust inputs/outputs, tone, volume, and mute without moving. Instantly silence audio for privacy or interruptions without altering volume settings. Deliver sustained large power even during long time use, unleash full potential of the whole system. ELNA/WIMA/Rubycon caps, large gold-plated terminals etc. to deliver clear sound with low distortion. Is volume control available in Bypass Mode? No, in Bypass Mode, both volume and tone control are unavailable. The amplifier's volume is set to maximum by default. Please lower the source volume before switching to this mode to prevent hearing damage and speaker damage. What should I use the 12V trigger input for? The 12V trigger input is for preamps or DACs with a trigger output to sync power on/off. Please do not use it as an audio input or connect to a power supply. Are there any specific requirements for the speakers connected to the A and B channels? It is recommended to use speakers of 4-8Ω with matching impedance for each channel. For example, use two 4Ω speakers for channel A output and two 8Ω speakers for channel B output. What op-amp model is used in the G7, and can it be replaced? The G7 uses three OPA1612 surface-mount op-amps, which are soldered directly onto the board and cannot be replaced or swapped out. Can the brightness and color of the VU meter be adjusted? No, the brightness and color of the VU meter are fixed and cannot be adjusted. Douk Audio G7 Douk Audio VU3 PRO Ampapa D1 Douk Audio A5 PRO Douk Audio A5 Douk Audio NS-13G MAX Douk Audio ST-01 PRO Make Hi-Fi Affordable Estabilshed in 2013, Douk Audio & Nobsound is created by a group of enthusiastic music fans and professional audio experts. We design and make various audio equipments including amplifier, phono preamp, headphone amp, DAC, audio switch and so on. Our aim is "Make Hi-Fi Affordable" ! Ampapa Q1 DAC | Bluetooth Headphone Amp Douk Audio G7 Flagship Amplifier Ampapa D1 Bluetooth Amplifier Douk Audio P7 Phono Preamplifier Douk Audio U2 PRO DDC