The QRI-108 S is a compact, passive 8-inch bass reflex subwoofer from the powerful QRI loudspeaker series, developed for professional sound reinforcement in medium to large events and demanding fixed installations. Whether used in sports halls, themed venues, theaters, or multipurpose rooms, this subwoofer delivers powerful and precise low-frequency support for compact loudspeaker systems.

Thanks to its ultra-compact wedge design, the QRI-108 S can be installed discreetly—on walls, ceilings, or in corners. Its omnidirectional dispersion ensures even low-frequency distribution throughout the space. In addition to the low-impedance version, a 100 V model is also available for PA and emergency sound systems. Custom finishes in any RAL color are available upon request.

Technical Specifications:

• Model: QRI-108 S
• Speaker Type: Passive bass reflex subwoofer
• Power Handling:
• Rated Power: 200 W RMS
• Program Power: 400 W
• Driver Configuration: 1× 8˝ Neodymium bass driver
• High-Frequency Horn: –
• Frequency Range (±3 dB): 48 – 20,000 Hz
• Sound Pressure Level:
• 1W/1m: 95 dB SPL
• Max SPL: 121 dB SPL
• Impedance: 8 Ohms (nominal)
• Dispersion Pattern: Omnidirectional
• Connections:
• 2× Speakon
• 2× Phoenix (In/Out)
• Enclosure: Wedge design for flexible installation
• Pole Mount: No
• Protection Class: IP 44
• Color: Black (custom RAL colors available on request)
• Dimensions (H×W×D): 340 × 400 × 340 mm
• Weight: 8 kg

Scope of Delivery:

• 1× QRI-108 S subwoofer
• User manual

Key Features:

• Ideal low-frequency extension for compact speaker systems
• Ultra-compact design for wall, ceiling, or corner mounting
• Natural, transparent sound character
• Suitable for horizontal and vertical installation
• Rugged IP 44-rated enclosure
• Optional: 100 V version for PA/EVAC systems
• Custom paint finish available in any RAL color