DSPPA DSP403II – 40W Indoor Column Speaker, 70V/100V High-Power 2-Way Commercial Public Address & Premium Large-Area Indoor Voice Projection Speaker
The DSPPA DSP403II is a high-power premium indoor column speaker designed for large commercial and institutional environments requiring stronger directional voice projection, broader indoor coverage, and refined decorative architectural integration. Featuring a 2-way speaker structure with four 4-inch woofers, one 2-inch tweeter, premium fiberboard cabinet with birch cold-pressed leather finish, and 70V/100V compatibility, the DSP403II is ideal for hotels, schools, halls, conference centers, religious venues, offices, and large indoor spaces where higher SPL and extended projection are essential.
Technical Specifications:
Speaker System:
- Type: High-Power Indoor Column Speaker
- Model: DSP403II
- Speaker Units:
- 4" Woofer × 4
- 2" Tweeter × 1
- Rated Power (RMS): 40W
Voltage:
- Input Voltage: 70V / 100V
Supports distributed public broadcasting systems with long-distance transmission capability.
Audio Performance:
- Frequency Range: 140Hz – 12kHz
- Sensitivity (1W/1m): 94dB ±2dB
- Maximum SPL (1m): 109dB ±2dB
- Distortion: THD <5%
- Sound Profile: Strong, clear, bright, and thorough large-area indoor projection with higher output and extended directional performance
Build & Materials:
- Cabinet Material: High-quality fiberboard
- Exterior Finish: Birch cold-pressed leather finish
- Front Surface: Elegant integrated surface network design
- Acoustic Advantage: Reduced resonance cabinet for cleaner large-space sound
- Construction: Nylon high-fiber crystal permeability structure
- Installation: Vertical wall-mounted column design with installation kit
Dimensions & Installation:
- Product Dimensions (L × W × H): 138 × 115 × 682 mm
- Net Weight (One Pair): 10.4 kg
- Gross Weight (One Pair): 11.3 kg
- Installation Method: Vertical wall-mounted nail installation
- Mounting Advantage: Large-area directional indoor projection with slim premium column architecture
Key Features:
- 40W RMS high-power indoor column speaker
- 2-way speaker architecture
- Four 4" woofers + one 2" tweeter
- 70V / 100V compatibility
- High 94dB sensitivity
- 109dB maximum SPL
- Premium fiberboard cabinet
- Birch leather finish
- Slim architectural design
- Ideal for large indoor public address and premium voice projection
Applications:
- Hotels
- Schools
- Conference halls
- Religious venues
- Reception halls
- Large offices
- Auditoriums
- Commercial indoor spaces
- Public address systems
- Background music systems
Connect Gates Professional Opinion:
From Connect Gates’ perspective, the DSP403II is the premium large-area upgrade over the DSP203II, specifically built for projects where stronger projection distance, larger indoor coverage, and higher SPL are required. Its 40W power and four-driver architecture make it highly effective for conference halls, religious spaces, educational institutions, and premium commercial interiors where standard wall speakers or smaller columns may struggle. For clients needing elegant architectural design combined with serious indoor projection capability, the DSP403II is an excellent commercial-grade solution.
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