Here’s a detailed description of the DSPPA DSP308 Outdoor Waterproof Column Speaker based on the official specs:

 Product Description

The DSP308 is an outdoor/weatherproof column-

speaker designed for versatile use in commercial and industrial sound applications.

Its elegant column design makes it ideal for mounting along walls in locations such as hotels, schools, offices,

restaurants, factories,

or public areas where background music and paging / announcements are needed.

Key Features & Functionality

• Waterproof/Weatherproof Build: Constructed with an aluminum enclosure to resist corrosion,

• exposure to moisture, and outdoor conditions.

• Built-in Transformer (70V / 100V): Allows long-distance wiring with reduced loss.

• Makes it easier to connect multiple units in parallel without significant drop in volume or signal integrity.

• Two-Way Drivers: Includes three 4-inch drivers and one 2.5-inch driver (4”x3 + 2.5”x1) to cover mid and high frequency bands.

• Frequency Response: Approximately 140 Hz to 14 kHz –

• offers sufficient clarity for speech and mid-to-high frequency content, though not optimized for deep bass.

 Performance

• Rated Power: 30 W RMS.

• Maximum SPL: About 106 dB at 1 meter — loud enough for moderately noisy environments.

• Sensitivity: ~91 dB (1W / 1m). Good efficiency, meaning less power is needed for decent sound output.

 Physical & Mounting Details

• Mounting Hook / Bracket:

• Comes with mounting hardware (hook or bracket) for secure wall installation.

• rd rather than into ceilings or floors.