Inter-M - DPX-300D
DPX-300D
Product Description
The Inter-M DPX-300D is a professional 2-channel Class-D power amplifier engineered for performance, efficiency, and reliability in commercial audio environments. Housed in a compact 1U rackmount design, it delivers 2 × 300W of power at 70V or 100V, making it ideal for distributed PA and emergency voice evacuation systems.
One of its standout features is support for DC 24V emergency power input, ensuring continuous operation during power outages without requiring a separate UPS system. In emergency broadcast situations, the amplifier automatically switches to PRIORITY mode to ensure critical announcements are delivered first.
The unit offers extensive protection circuitry covering overheating, short circuits, over-input, reverse voltage, earth faults, power loss, and DC offset errors. The front panel features status LEDs for fault detection, power source indicators (AC/DC/STBY), clip, protect, and input signal monitoring for easy diagnostics.
With remote power control, audio link connectors, and configurable buzzer alerts, the DPX-300D offers a full suite of features for integrators and AV professionals.
Specification Sheet
- Click to download: DPX SERIES_BR_E_2301_V2.pdf
Manual
- Click to download: DPX-300S_D_600S_MANUAL_E.pdf
- 2 × 300W Class-D amplifier in a compact 1U chassis
- PRIORITY override function for emergency signals
- Full set of protection circuits: thermal, short, reverse voltage, earth fault, DC offset, and power failure
- Front panel indicators: signal level, clip, protection, fault, STBY, AC/DC source
| Description | DPX-300D |
|---|---|
| Rated Output Power | 300W × 2CH |
| 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 | -10℃ ~ +40℃ |
| Operating Power | AC 220~240V, 50/60 Hz / DC 24V |
| Power Consumption (1/8 Power) | 150W |
| Weight (SET) | 7.5kg |
| Dimensions (SET) | 482(W) × 44(H) × 420(D) mm |
| Weight (Net) | 7.50kg |
| Weight (Gross) | 8.50kg |
