Douk Audio G2 PRO Hi-Fi 300W Subwoofer Amplifier Mono Channel Power Amp Home Audio Gain Control For Home Theater Speaker

Features
Flexible FLAT/SUB mode switch: G2 PRO is a mono channel amplifier with 2 working modes, can serve as both a full-frequency or subwoofer amp for both active and passive subwoofers. Two units can independently power the left and right channels to build 2.0 channel system, perfect for custom HiFi setups.
Exclusive Gain Control: Design with switchable 2-level of output gain(32/36 dB) and SUB frequency adjustment(40-300Hz), it easily matches input levels for seamless, flawless sound. Fine-tune your audio precisely and experience richer, clearer tones of the audio source.
Efficient 300W Output Performance: Using TPA3255D2 chip, G2 PRO delivers up to 300W. Perfect for driving most home passive speakers or subwoofers in various environments like bookshelf, desktop, or floor-standing systems. Enjoy powerful, distortion-free sound that fills any space.
Sub Out Expands Audio System: Designed with a SUB OUT to connect active subwoofers, the G2 PRO pairs with a 2.0 amp for a powerful 2.1 system or adds an active subwoofer to upgrade to 2.2 channels for deeper bass. Compatible with Douk Audio BS-1 bass shakers, it delivers tactile feedback for immersive gaming, movies, and VR steups.
Mini size with exquisite appearance: a mono integrated Class D amplifier featuring a compact design that seamlessly fits any setup from desktops to home theaters. Built with a durable CNC-machined aluminum chassis and gold-plated terminals, it combines fashion and function, making it ideal for HiFi enthusiasts.
Q: What power adapter is included, and can it be upgraded for higher output?
A: Default comes with 32V/5A power adapter enough for common use, if you want higher power output to drive your subwoofer/speaker better, please click LINK to buy DC 48V/5A power adapter.
Q: Can the SUB signal and the main amplifier output at the same time?
A: Yes, they can output together.
Q: What knobs control the speaker output and the SUB output on the G2 PRO?
A: The volume knob controls the volume of speaker ouput and SUB OUT in both FLAT and SUB modes; the SUB FREQ knob controls the subwoofer frequency range of speaker output and it only works in SUB mode.
Q: Why does the G2 PRO stop outputting sound when the volume is turned above 75%?
A: Please check your power adapter. If the power output is not enough, the G2 PRO may enter protection mode when the volume exceeds 75%.
Q: How to build a build a 2.0 channel setup via G2 PRO?
A: Use 2PCS G2 PRO units to independently drive the left and right channels.
Q: How to use G2 PRO to build a 2.1 channel setup?
A: ① Connect a 2.0 amp to passive speakers and a G2 PRO to a passive subwoofer for 2.1.
② Use two G2 PROs for full-range speakers and an active subwoofer via SUB output for 2.1.
③ Use three G2 PROs for full-range speakers and passive subwoofer, requiring a 3-way input splitter.
Parameters
Brand: Nobsound
Model: G2PRO
Audio input: Stereo RCA
Audio output: Banana Speaker Jacks/Subwoofer out
Max output power: 300W
Matched impedance: 2-8Ω
Input sensitivity: 0.775V
Bass cutoff frequency range: 40-300Hz
Slope of bass attenuation: -12dB Slope
Full frequency response:20Hz-20kHz(±3dB)
THD: 0.03%
SNR: ≥106dB
Voltage range: DC24-48V(5.5*2.5mm)
Dimensions(W*D*H): 117*128*34mm / 4.61*5.04*1.34in
Package dimensions(W*D*H): 257*215*56mm / 10.12*8.46*2.20in
Net weight:498g/1.10lb
Package weight:1.20kg/2.65lb
Packing List
1* G2 PRO Amplifier
1* 32V/5A Power Supply(optional)
1* User Manual