Input: Up to 2 sets of amplifiers Output: Up to 2 pairs of passive speakers Supported Amplifier Types: BTL, Class A, Class AB, Class B, Class D digital amplifiers, tube amplifiers, etc. Maximum Power Support: 250W @ 4Ω (per channel) VU Meter Size: 85 x 45mm VU Meter Brightness Adjustment: 5 levels (100%, 75%, 50%, 25%, Off) No-Load Amplifier Protection: Built-in 390Ω resistor protection Supply Voltage: DC-5V
