



KASPER PS-15S8
MRP - Rs. 76,990
KASPER PS-15S8 passive subwoofer: 15 inch, 800 W RMS, 130 dB max SPL, 40 Hz - 160 Hz. Available in India from Shivansh Electronics, Kolkata, West Bengal, India.
VISUAL GUIDE — See Every Photo, Spec & Setup Step (PDF)
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Technical data
| Speaker type | Single 15" subwoofer, passive |
Acoustical data
| Frequency response | 40 Hz - 160 Hz |
| Impedance | 8 Ω |
| Power | 800 W RMS / 1200 W peak |
| Maximum SPL | 130 dB |
| LF | 15" x 1 |
| Voice coil | 4" |
Connectivity
| Input | 2 x 4‑pole locking loudspeaker connector |
Mechanics
| Housing | Marine ply, polyurea painted |
| Length | 620 mm |
| Width | 460 mm |
| Height | 510 mm |
| Net weight | 26 kg |
Product overview
The KASPER PS-15S8 Passive Subwoofer is a powerful low-frequency solution designed to deliver deep, impactful bass for professional audio systems. Built with a rugged enclosure and engineered for high output, it ensures reliable performance in demanding environments.
Passive subwoofers available in indoor and outdoor (all weather) formats, with a custom paint option to match interiors. It is ideal for auditoriums, live events, clubs and DJ set-ups, and houses of worship.
| Subwoofer | 15 inch |
| RMS power | 800 W |
| Maximum SPL | 130 dB |
| Net weight | 26 kg |
Key features
- Passive subwoofer design
- High SPL performance
- All-weather ready build
- Rugged cabinet construction
- Wide sound coverage
- Designed for powerful bass reinforcement
Deep, impactful bass
One 15 inch low-frequency driver with 4 inch voice coil, 40 Hz - 160 Hz at 8 Ω, 800 W RMS / 1200 W peak and up to 130 dB maximum SPL.
Rugged cabinet
Marine ply enclosure with a polyurea painted finish (length 620 mm; width 460 mm; height 510 mm; 26 kg net) and two 4-pole locking loudspeaker connectors.
Indoor and outdoor formats
KASPER passive subwoofers are available in indoor and outdoor (all weather) formats, with a custom paint option to match interiors.
In the box
- KASPER PS-15S8 passive subwoofer
KASPER PS-15S8: frequently asked questions
Is it powered?
No. The PS-15S8 is a passive subwoofer (8 Ω).
How low does it go?
Frequency response 40 Hz - 160 Hz.
Can it be used outdoors?
KASPER offers its passive subwoofers in indoor and outdoor (all weather) formats.
Where can I buy the KASPER PS-15S8 in India?
The KASPER PS-15S8 is available from Shivansh Electronics, Kolkata, West Bengal, India, with delivery across India.
Workflow 1: Bass for an install system
Low-frequency reinforcement in auditoriums and halls.
Connections
| Connect | To |
|---|---|
| Amplifier channel | Input (4‑pole locking connector) |
Setup
- Connect the amplifier outputs with 4-pole locking loudspeaker cables.
- Check the impedance and power ratings against the amplifier.
- Set levels for the room.
Tip: 8 Ω passive subwoofer.
Workflow 2: With Inkline line arrays
Add bass beneath KASPER line arrays.
Connections
| Connect | To |
|---|---|
| Amplifier (subs) | Subwoofer input |
| Amplifier (tops) | Line array |
Setup
- Connect the amplifier outputs with 4-pole locking loudspeaker cables.
- Check the impedance and power ratings against the amplifier.
- Set levels for the room.
Tip: KASPER pairs the Inkline series with KUA subwoofers.
Workflow 3: Club and DJ set-up
Powerful bass reinforcement for clubs.
Connections
| Connect | To |
|---|---|
| Amplifier | Subwoofer input |
Setup
- Connect the amplifier outputs with 4-pole locking loudspeaker cables.
- Check the impedance and power ratings against the amplifier.
- Set levels for the room.
Tip: Maximum SPL 130 dB.
Workflow 4: With KLout point source speakers
Full-range tops over KASPER subwoofers.
Connections
| Connect | To |
|---|---|
| Amplifier (subs) | Subwoofer |
| Amplifier (tops) | KLout speakers |
Setup
- Connect the amplifier outputs with 4-pole locking loudspeaker cables.
- Check the impedance and power ratings against the amplifier.
- Set levels for the room.
Tip: Frequency response 40 Hz - 160 Hz.
Workflow 5: Live events
Rugged bass for touring and events.
Connections
| Connect | To |
|---|---|
| Amplifier | Subwoofer input |
Setup
- Connect the amplifier outputs with 4-pole locking loudspeaker cables.
- Check the impedance and power ratings against the amplifier.
- Set levels for the room.
Tip: Marine ply, polyurea painted cabinet.
Workflow 6: Outdoor installation
All-weather format for outdoor venues.
Connections
| Connect | To |
|---|---|
| Amplifier | Subwoofer input |
Setup
- Connect the amplifier outputs with 4-pole locking loudspeaker cables.
- Check the impedance and power ratings against the amplifier.
- Set levels for the room.
Tip: KASPER offers indoor and outdoor (all weather) formats.








