4‑Ch Low‑Power Digital Amplifier
Model:PD-404 Guangzhou Jodie Audio Equipment Co., Ltd.
This 1U rack‑mount 4‑channel Class‑D digital amplifier features compact metal chassis for cabinet installation. It offers multiple power output modes with low distortion and high SNR for pure sound. Two‑level adjustable sensitivity and rich interfaces with link output are provided. Dual variable‑speed fans and multi‑LED indicators are equipped. Built‑in multi‑protections against over‑temperature, short‑circuit and RF ensure stable performance for KTV, conference rooms and small‑medium sound reinforcement.
Technical Specifications
Rated Output Power: 400W ×4 stereo @8Ω
Rated Output Power: 575W ×4 stereo @4Ω
Rated Bridged Output Power: 900W ×2 bridged @8Ω
Power Requirement: AC220V‑240V
Construction: 1U metal chassis design
Number of Channels: 4CH
THD+N (1kHz,‑10dB,4Ω): ＜0.1%
Frequency Response: 20Hz‑20kHz, ±0.1dB (1W/8Ω)
Input Impedance: 20KΩ balanced, 10KΩ unbalanced
Sensitivity: 0.775V / 1.4V, two‑level adjustable
Signal‑to‑Noise Ratio: ≥103dB
Damping Factor: 350:1 @1kHz, 8Ω
Slew Rate: 28V/µs
Output Stage: Class‑D
LED Indicators: 1×Power indicator, 2×Signal indicators, 2×Distortion indicators, 2×Clip indicators
Input Connectors: Balanced XLR input; EDGRH male‑female plug for unbalanced input & LINK unbalanced output
Output Connectors: Speakon
Cooling System: Dual variable‑speed fans, airflow from left to right
Protection Functions: Over‑temperature protection, DC output protection, load protection, short‑circuit protection, open‑circuit protection, RF protection
Dimensions: 482 × 335 × 44 mm
* Page content update time:2026-08-15 15:33:42,The relevant information on the website is for reference only. All products are subject to physical inspection and are subject to change without prior notice.
