DPX-300Q
Inter-M DPX-300Q
Product Description
The Inter-M DPX-300Q is a 4-channel, 300W per channel Class-D digital power amplifier developed for flexible, high-performance audio distribution in public address and emergency broadcast systems.
Housed in a durable 2U rack-mount chassis, the DPX-300Q delivers 1200W of total output power (4 × 300W) across 70V or 100V lines, making it ideal for multi-zone paging, background music, and critical alert systems.
The amplifier supports dual power operation with both AC 220–240V and DC 24V emergency input, ensuring uninterrupted functionality during power outages without the need for an external UPS. A dedicated PRIORITY input ensures emergency announcements override all other inputs instantly and reliably.
A full suite of fault and protection circuits guards against overheating, short circuits, reverse voltage, DC output, earth faults, and more. The intuitive front panel LED indicators display input levels, clip, protection, fault status, and power source, offering clear visual feedback for diagnostics and system health.
Additional features include remote power control via contact closure, audio link connectors, and a configurable internal buzzer for audible alerts.
Manual
- Click to download: DPX-300Q_600D_900S_1200S_MANUAL_E - copy.pdf
- 4 × 300W (70V / 100V line) Class-D amplifier in a 2U rackmount chassis
- AC/DC dual power input with 24V emergency backup operation
- Emergency PRIORITY input override for public safety broadcasting
- Status LED indicators: signal level, clip, protection, fault, standby, AC/DC
- Comprehensive protection: overheat, short, reverse voltage, earth fault, over input
- Audio link connectors and contact-based remote power control
- Configurable buzzer for alert indication
| Description | DPX-300Q |
|---|---|
| Rated Output Power | 300W × 4CH |
| Frequency Response (1W, ±3dB) | 50Hz ~ 20kHz |
| THD (Rated Power) | Less than 1% |
| S/N (20kHz LPF, A-weighted) | More than 95dB |
| Input Sensitivity / Impedance | 0dBV / 20kΩ |
| Output Level / Impedance | 100V / 33.3Ω / 70V / 16.3Ω |
| Operating Temperature | -10C ~ +40C |
| Operating Power | |
| Power Consumption (1/8 Power) | 300W |
| Weight (SET) | 9.7kg / 21.4lb |
| Dimensions (SET) | 482(W) × 88(H) × 424(D)mm / 19(W) × 3.5(H) × 16.7(D)in |
| Weight (Net) | 9.70kg |
| Weight (Gross) | 10.50kg |
