2399 Karaoke Delay Reverb Preamplifier Microphone Preamp Tuning Motherboard *af

YXY-CYA6 Trolley Speaker Sound Card DAC Board w/ Reverb Multiple Sound Effects -

L1 Class A Preamp Tuner Preamplifier DAC Decoder Support 3-CH Wired Input ot25 *

ETK3699 Digital Kara OK Surround Reverb Delay Microphone Amplifier Preamp Board

BRZHIFI-L1B Class A Preamp Tuner Preamplifier DAC Support 2-Channel Wired Input

2X PT2399 Reverb Plate No Preamplifier Function Reverberation Microphone Board *

FX8 Preamplifier Multiple Audio Transmission Karaoke Reverb Effect Controller *l

Trolley Audio Sound Card BT5.0 DAC Board with Reverb Multiple Sound Effects ot25