Stereo + Subwoofer Output 2.1 HiFi Preamplifier Board Front-stage Amplifier Module 15W AC Dual 12-18V

Description:
- 2.1 Front stage board with left and right stereo sound, plus a subwoofer speaker (subwoofer speaker), equivalent to 3 independent amplifiers, 2 left and right channels, and 1 subwoofer. The subwoofer is used to compensate for the subwoofer part of the stereo sound, usually with frequencies below 100HZ. This 2.1 front stage board needs to be paired with a 3-channel rear stage amplifier board. It is recommended to use one board with 3-channel amplification circuits, or a 2-channel rear stage board with a single channel rear stage board. The speaker needs a stereo speaker and paired with a subwoofer, this combination is what we call the 2.1 sound system.

Package Included:
- 1 x Preamplifier Board