Qi18S
18" Installation SubwooferThe Quest Qi18S subwoofer delivers deep, controlled bass and high-output performance for demanding music playback and sound reinforcement in fixed installations. Its high-power, ultra-long-excursion 18-inch driver provides exceptional low-frequency extension with clarity and authority. The robust, low-profile hardwood enclosure offers flexible installation with Speakon and Euroblock connectivity for broad system compatibility. Optimised for seamless integration with Qi Series loudspeakers and QXD amplifiers, the Qi18S features dedicated DSP presets and advanced control for consistent, high-performance audio across diverse applications.
Key Specifications:
- Impedance: 8 Ω
- Transducers: 18″ LF
- Power: 1200W RMS
SPECIFICATIONS
COLOURS / MODELS
BLACK (RAL 9004)
Qi18S
FREQUENCY RESPONSE (-6 dB)
35Hz to 140Hz
SENSITIVITY - 1 W @ 1 m
100.6dB
MAXIMUM SPL @ 1 m
137.4dB
POWER HANDLING (RMS/PEAK)
1200W / 2400W
NOMINAL IMPEDANCE
8Ω
TRANSDUCERS
LF: 457mm (18") Woofer
DISPERSION (H° x V°)
Omnidirectional
CONNECTIONS
CONNECTIONS
Euroblock/Phoenix Connector - 5.08mm Pitch (In/Thru)
RIGGING POINTS
Yes - See Specification Document
DIMENSIONS (H x W x D)
510 x 790 x 600mm (20 x 31.1 x 23.6")
WEIGHT
46.7kg (103lb)
SHIPPING WEIGHT
48kg (105.9lb)
SHIPPING DIMENSIONS (H x W x D)
585 x 860 x 670 mm (23 x 33.9 x 26.4")
CABINET MATERIAL & FINISH
Marine Plywood with Polyurea Coating
GRILLE MATERIAL & FINISH
Aluminium with Acoustic Fabric Cover
RECOMMENDED POWER AMPLIFIER
Quest QX or QXD Amplifiers
ACCESSORIES (INCLUDED)
Euroblock/Phoenix Connector, Cover Plate
ACCESSORIES (AVAILABLE SEPARATELY)
None
| COLOURS / MODELS |
|
||
| FREQUENCY RESPONSE (-6 dB) | 35Hz to 140Hz | ||
| SENSITIVITY - 1 W @ 1 m | 100.6dB | ||
| MAXIMUM SPL @ 1 m | 137.4dB | ||
| POWER HANDLING (RMS/PEAK) | 1200W / 2400W | ||
| NOMINAL IMPEDANCE | 8Ω | ||
| TRANSDUCERS | LF: 457mm (18") Woofer | ||
| DISPERSION (H° x V°) | Omnidirectional | ||
| CONNECTIONS | |||
| CONNECTIONS | Euroblock/Phoenix Connector - 5.08mm Pitch (In/Thru) | ||
| RIGGING POINTS | Yes - See Specification Document | ||
| DIMENSIONS (H x W x D) | 510 x 790 x 600mm (20 x 31.1 x 23.6") | ||
| WEIGHT | 46.7kg (103lb) | ||
| SHIPPING WEIGHT | 48kg (105.9lb) | ||
| SHIPPING DIMENSIONS (H x W x D) | 585 x 860 x 670 mm (23 x 33.9 x 26.4") | ||
| CABINET MATERIAL & FINISH | Marine Plywood with Polyurea Coating | ||
| GRILLE MATERIAL & FINISH | Aluminium with Acoustic Fabric Cover | ||
| RECOMMENDED POWER AMPLIFIER | Quest QX or QXD Amplifiers | ||
| ACCESSORIES (INCLUDED) | Euroblock/Phoenix Connector, Cover Plate | ||
| ACCESSORIES (AVAILABLE SEPARATELY) | None |
