S-299 Digital Power Amplifier 4.1 Channel Bluetooth5.0 USB/SD/3.5mm AUX Receiver — Bass & Treble Control for Home/Car

Overview: The S-299 is a compact digital power amplifier offering flexible 4.1 channel output and independent zone control. Its unique output architecture lets you split the 4.1 channels into two separate 2.0 channel groups, each with its own volume adjustment, plus a dedicated low-frequency output for connecting an active subwoofer. This makes configuring 2.0/2.1/4.0/4.1 systems simple and convenient. Power and load: Rated 40W × 4 output power. Designed to drive speakers with 4-8 ohm impedance, it can easily power most home, car and boat speaker setups for clearer, stronger audio performance. Inputs and compatibility: Multiple input options include Bluetooth5.0, stereo RCA and 3.5mm AUX, making the amp compatible with cellphone, MP3 player, CD player, dataplay, computer, decoder and similar sources. It also supports USB(U-disk), SD Card and MM Card playback so you can enjoy high-quality lossless music from removable media. Controls and display: The unit provides a tactile volume knob plus dedicated bass and treble controls to fine-tune the sound. A front LED display shows operating status in real time, and a supplied remote control adds convenience for both indoor and outdoor use. Power requirements and applications: Operates from DC 12V-14V, suitable for home desktop setups as well as mobile installations including car, boat, RV and golf cart systems where low distortion and accurate reproduction are required. Parameters / Inputs: USB(U-disk) / stereo RCA / 3.5mm AUX / SD & Card.