


SP-SH403 120 W Column Speaker
A 120 W column speaker with four 3-inch full-range drivers and a 123 dB maximum SPL. Its IPX4-rated housing and 120° × 20° dispersion suit large halls, gymnasia and covered outdoor spaces.
- Four 3-inch full-range drivers in a slim column.
- 120 W rated / 400 W peak power at 8 Ω.
- 98 dB sensitivity and 123 dB maximum SPL.
Overview
Key features
- Four 3-inch full-range drivers in a slim column.
- 120 W rated / 400 W peak power at 8 Ω.
- 98 dB sensitivity and 123 dB maximum SPL.
- 120° horizontal × 20° vertical dispersion.
- IPX4 waterproof housing with aluminium mesh cover.
- 530 × 100 × 150 mm, 3.8 kg.
The speaker is part of a common passive range, allowing rooms of different sizes to use the same amplifier and mounting approach.
Pair with Seekika infrared amplifiers and receivers for a complete classroom audio system. Contact Seekika Audio for room coverage and mounting advice.
What’s in the box
- SP-SH403 column speaker
- Mounting bracket
- User guide
Specifications
Audio & wireless
| Frequency response | 120 Hz–16 kHz (-6 dB); 75 Hz–20 kHz(10 dB) |
|---|---|
| Speaker units | 3"full band × 4 |
| Sensitivity | 98 dB |
| Maximum SPL | 123 dB |
Power & charging
| Rated impedance | 8Ω |
|---|---|
| Power (rated / peak) | Rated 120 W, Peak 400 W |
Coverage & installation
| Coverage (H × V) | Horizontal 120°, Vertical 20° |
|---|
Physical
| Dimension (W×H×D)mm | 530 × 100 × 150 mm |
|---|---|
| Weight | 3.80 kg |
| Housing material | UV waterproof coating, aluminum mesh cover, anti-rust housing, IPx4 waterproof |
Applications
Planning a classroom or campus project?
Share your floor plan and room schedule — we will recommend microphone coverage, speaker placement and kit configuration.
Frequently Asked Questions
Which rooms is the SP-SH403 designed for?
The SP-SH403 is typically installed in auditorium, lecture hall, gymnasium, campus. Room size, ceiling height and speaker layout determine the final configuration — send us a floor plan and our team will recommend a layout.
What certifications and warranty are available for the SP-SH403?
Seekika Audio supplies CE, RoHS and FCC compliance documentation for its classroom audio products. Classroom audio products carry a standard 2-year warranty against manufacturing defects, with extended coverage available on project orders.
- OEM / ODM customization
- CE, RoHS & FCC documentation
- System layout and commissioning support
- Reply within one business day









