Description/Features: This 3-Channel DC Linear Positive/Negative Regulated Power Supply Board is essential for HiFi DIY enthusiasts, offering two distinct versions: LT1963A and OP+MOS (Op-Amp + MOSFET). Each version provides three completely channels with separate inputs and outputs, tailored for high-performance audio applications. The LT1963A version excels with its low-noise, high-speed regulation, while the OP+MOS version boasts a robust Op-Amp and MOSFET architecture for stable, low-ripple power delivery. Specifications: LT1963A Version: Output Configurations: 3x Positive or 1x Positive + 1x Positive/Negative Output Voltage Range: 1.21V to 20V adjustable; Default +5V 15V Max Output Current: 1.5A per channel Input: 6-20V DC or 6~14V AC per channel PCB Size: 10cm x 7cm Low Dropout: 1V above output voltage OP+MOS Version: Output Configurations: Positive/Negative: 5V to 15V; Positive: +5V to +15V Max Output Current: 3A per channel Input: 6~18V AC per channel PCB Size: 10cm x 8cm Dropout: Approximately 3V above output voltage Color: As shown Material: PCB Package Contents: 1* Low-noise Power Supply Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.