
DSPPA 20W Sound Projector (Volt) | DSP207II
The DSPPA DSP207II is a unidirectional sound projector for 70 V / 100 V PA systems. It uses a 5" + 0.75" coaxial unit in a compact ABS housing (ø138 x 218 mm) and aims sound in one direction, which suits long spaces such as tunnels, corridors and shopping galleries.
Key Features
Directional sound: As a unidirectional speaker, the DSP207II projects sound along one direction with a long transmission distance. You can point it down a corridor or gallery instead of spreading sound in all directions.

Coaxial driver: The 5" woofer and 0.75" tweeter are combined in one coaxial unit with a moisture-proof edge and a PP cone. It covers 90 Hz to 20 kHz with a sensitivity of 86 ±2 dB and a maximum SPL of 98 ±2 dB at 1 m.
Fire-rated ABS, wall or ceiling: The housing is high-strength ABS that complies with UL 94V-0. The speaker is installed on its hanger, on a wall or under a ceiling, and weighs 1.44 kg.


Who it's for / Works with
DSPPA lists tunnels, corridors and shopping galleries, for public address and background music. It works with a 70 V / 100 V PA amplifier.
Good to know
- DSPPA describes it for indoor spaces and states no outdoor or IP rating.
- The amplifier is not part of this product: the speaker must be wired with speaker cable to a suitable PA amplifier.
Technical Specifications
| Model | DSP207II |
| Speaker Unit | 5" x 1 + 0.75" x 1 coaxial |
| Working Voltage | 70 V / 100 V |
| Sensitivity (1 m, 1 W) | 86 ±2 dB |
| Max. SPL (1 m) | 98 ±2 dB |
| Frequency Response | 90 Hz - 20 kHz |
| Housing | ABS, UL 94V-0 |
| Size (H x W x D) | ø138 x 218 mm |
| Weight | 1.44 kg |
📄 Datasheet: Download the official DSPPA DSP207II datasheet (PDF)
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