DD 2280 Two Channel Digital Power Amplifier

Descrizione

Key Features

Protection functions: Auto-limiting output, short circuit, overload, over-temperature, and power-on delay

Delay start system to prevent speaker damage from power surges

Dual-channel balanced input on the rear panel

SPEAKON output connectors for secure connection

Standard 483mm rack-mount (1U) design, lightweight for easy transport and installation

Independent cooling systems for amplifier and switching power supply

Stepless fan speed control for optimized cooling efficiency

Technical Specifications

Output Power (8Ω, 1kHz): 2×350W

Output Power (4Ω, 1kHz): 2×650W

Frequency Response: 20Hz~20kHz (±3dB)

Total Harmonic Distortion (THD): ≤1% (8Ω, 350W)

Input Sensitivity: +4dB (1.23V)

Input Impedance: 10kΩ (Balanced)

Signal-to-Noise Ratio (S/N): ≥80dB

Connectors & Indicators

Input (CH1-2): XLR balanced input

Output (CH1-2): SPEAKON output

Power Supply: AC power input

Indicator Lights:

Power Indicator ×1 (Green)

Input Signal Indicator ×2 (Yellow)

Peak Indicator ×2 (Red)

Protection Circuit Indicator ×1 (Red)

Power & Environmental Requirements

Power Supply Voltage:

AC 110~120V, 50/60Hz

AC 220~240V, 50/60Hz (switchable via internal jumper)

1/8 Rated Power Consumption: 50W / 80W / 110W

Operating Temperature Range: 0~50℃

Operating Humidity Range: ≤90% RH (Non-condensing)