For sale is a set of two Fosi Audio V3 Mono 240W monaural power amplifiers. For those who purchase this year, we will include a used Anker Soundcore Motion+ speaker as a bonus. About this product: Compact Monoblock Amplifier: The V3 Mono, designed for HiFi audio enthusiasts, can drive one passive speaker with one amplifier, reaching a rated power of 240W at 4Ω. It offers flexibility to easily build a home audio 2/3/4/5 channel system. The V3 Mono can function as a power amplifier for a multi-channel AVR, complementing the output power to easily drive high-power speakers in a home theater system. Innovative Cutting-Edge Technology: Through its own research and development, Fosi Audio has achieved a technological breakthrough by applying PFFB (Post Filter Feedback) technology to the V3 Mono for the first time. This effectively overcomes the common load dependency issues of Class D amplifiers, improving distortion, enhancing frequency response, and significantly improving sound quality and performance. [Package Contents: Amplifier x 2, 48V/5A power adapter, Japanese manual] [Note] This version has gain settings of 25dB and 30dB.