KEF Ci115QCT Architectural Speaker Instructions
- June 9, 2024
- KEF
Table of Contents
Ci115QCT
Architectural Speaker
Instructions
Product Overview
The KEF Ci115QCT is a high performance commercial speaker designed for in- ceiling and flush mount installations. It’s a coincident point source design featuring KEF’s proprietary Uni-Q® technology with a driver array that includes a 19mm high frequency tweeter mounted in the acoustic centre of the 115mm low frequency woofer. The Ci115QCT features a fire rated metal rear enclosure, is UL2043 and UL1480-5 approved, and is compatible with both 70 and 100 volt applications. The ABS assembly, bezel and grille, are finished in a proprietary moisture resistant coating and are UV protected to withstand continued operation in high moisture environments. Supplied with accessories for suspended ceiling application, the KEF Ci115QCT is specifically engineered for versatility in commercial applications requiring high quality acoustic playback and dialogue intelligibility making it the ideal choice for premium event spaces such as retail shops, meeting rooms, and restaurants.
Key Features
KEF Uni-Q® Technology – This proprietary driver array places the tweeter in
the acoustic centre of the woofer delivering wide dispersion with consistent
sound characteristics throughout the space. Because the high and low
frequencies originate from the same point, acoustic lobing problems common to
other speaker designs are virtually eliminated allowing fewer speakers to
deliver smooth coverage across a wide listening area.
Selectable Front Baffle Switch – The 70/100 volt switch allows the integrator
to tune each speaker’s output post-installation (70V – 4W, 8W, 15W, 30W) (100V
– 8W, 15W, 30W) creating a distributed line system with the versatility to
match various operating requirements.
Fire-Rated Metal Rear Enclosure – The enclosure guarantees consistent acoustic
performance in various in-ceiling installations while meeting the necessary
UL1480-5 fire protection and signalling requirements.
Versatile Mounting Hardware – Hardware required for mounting in both suspended
and hard ceilings, plus a mandatory safety wire, is included with each speaker
ensuring the installation can be completed without added costs or delays.
Paintable Grille and Bezel – The metal grille and ABS bezel are finished in a
UV protective coating that can be painted to match any décor.
Architect and Engineer Specifications
The speaker shall be designed for in-ceiling and flush mount installations in
suspended and hard ceilings and include a fire rated metal rear enclosure. The
driver array will utilise a coincident point source design with the high
frequency tweeter mounted in the acoustic centre of the low frequency woofer.
The speaker shall consist of a 115mm low frequency woofer and a 19mm aluminium
dome tweeter mounted in a UV protected ABS baffle with a paintable bezel and
grille. The baffle shall include a front mounted switch allowing for the
selection of 8 ohm or 70/100 volt operation with settings for 70V (4W, 8W,
15W, 30W) and 100V (8W, 15W, 30W). The speaker will include all necessary
hardware for hard and suspended in-ceiling installations along with a safety
wire. The speaker shall be no more than 220mm in diameter and 160mm in depth
and deliver a frequency response of 70Hz – 20kHz +/- 6dB.
The nominal impedance of the speaker shall be 8 ohm and it must achieve a
minimum pressure sensitivity of 86dB SPL at 1 meter on-axis with an input of
2.83 volts. The crossover frequency between the woofer and tweeter shall be
2.3kHz.
The speaker shall be UL2043 & UL1480-5 approved and meet numerous safety and
performance standards listed by regulatory bodies around the world.
The speaker shall be the KEF Ci115QCT.
Specifications
| Model | Ci115QCT** |
|---|---|
| Series | Q Series |
| Nominal impedance | 8Ω |
| Sensitivity (2.83V/1m) | 86dB |
| Frequency response (±6dB) with back can / rear enclosure | 70Hz – 20kHz |
| Frequency range (-10dB) | 81Hz – 30kHz |
| Nominal coverage (degrees) | 160° |
| Max SPL (dB) | 95dB |
| Crossover frequency | 2.3kHz |
| Drive units | LF HF |
19mm (0.75in)
Recommended amplifier power| 15 – 80W
Recommended high-pass filter (Hz)| 85Hz
Transformer taps| 70V: 4W, 8W, 15W, 30W 100V: 8W, 15W, 30W
Product external dimensions| Diameter Ø
Depth| 220mm (8.66in.)
160mm (6.03in)
Cut-out dimensions| Diameter Ø| 196mm (7.71in.)
Net weight| 2.7kg (5.941bs)
Mounting depth from surface with back can| 157mm (6.18in.)
Optional rough in frame| RIF16OR
Ideal rear volume (L)| 6L
Minimum rear volume (L)| 1.5L
Certification| UL2043 UL1480-5
**UL2043 and UL1480-5 approved
Polar Responses
Mechanical Diagrams
Dimensions in mm (inches)
KEF reserves the right, in line with continuing research and development, to
amend or change specifications. E&OE.
Visit KEF.COM for more about KEF and its products.
KEF reserves the right, in line with continuing research and development, to
amend or change specifications. E&OE.
The Ci speakers that utilise THX in the model name have undergone and passed
certified THX approval.