Nobsound&reg; Tpa3116 Hifi 2.0 Channel Stereo Digital Amplifier Treble&bass Mini Amp This is our Douk audio own brand Nobsound, Low price but high performance, Mini but High-Power, Simple but have HiFi good sound, special designed for love HiFi friends, you deserve to have. Nobsound NS-06G is an 2.0 channel integrated amplifier with TREBLE&BASS adjustment, High-frequency and Low-frequency more richer, very suitable for bookshelf speakers. Using the new USA TI company TPA3116D2 high-performance power amplifier chip as the core, single-supply DC 8-25V wide working voltage, maximum 50W+50W output power, efficiency up to 90%. Size: 90*110*36 mm / 3.54*4.33*1.42 in; Net weight: 0.34 Kg / 0.75 lb (0.85 Kg / 1.87 lb with package)