Specification Sheet

ManualsBrandsJBL Professional ManualsCeiling & In-Wall Speakers6.5-Inch Ceiling Loudspeaker Transducer Assemblies, Sold as Pair

Control

26C/CT

Professional Series – Background/Foreground Ceiling Speaker

SPECSHEET

Architectural Speciﬁcations:

The loudspeaker shall be of in-ceiling design, consisting of a 165 mm (6.5 in) low frequency transducer, a coaxially-mounted 19 mm (¾ in) high frequency

transducer, and frequency dividing network installed in a ported enclosure. The low frequency voice coil shall be 25 mm (1 in) in diameter and the coil former

shall be of aluminum for maximum heat dissipation.

Performance speciﬁcations of a typical production unit shall be as follows: Measured sensitivity (SPL at 1m [3.3 ft] with 4V input, averaged from 100 Hz to 10

kHz) shall be at least 89 dB-SPL. Usable frequency response shall extend from 75 Hz to 20 kHz (10 dB below rated sensitivity in half-space) with no external

equalization. Rated power shall be at least 75 watts continuous pink noise power, deﬁned as conforming to international standard IEC268-5 (shaped pink noise

with peak-to-average ratio of 6 dB) for a period of 100 continuous hours.

The system shall be protected against damage from occasional overpowering via full range series lamps that limit the power to the network and transducers

(Control 26C, not Control 26CT). The high frequency transducer shall be horn-loaded to more evenly cover a minimum 110° polar conical coverage area.

The backcan shall be constructed of formed steel and the bafﬂe of UL94V-0 ﬁre rated medium impact polystyrene. An enclosed terminal box shall be included

proving strain relief for use with either plenum-rated wire, 1/2 in (13 mm inside diameter) conduit, or ﬂexible conduit up to 22 mm (7/8 in) outside diameter.

The external wiring shall be accomplished via a removable lockable wiring connector with screw-down terminals to provide both secure wire termination and

prewiring capability before loudspeaker installation. An attachment loop shall be provided on the back panel for cabling to building structure as a secondary

support point.

The system shall include a support backing plate to reinforce the ceiling material and tile support rails for use on either 2 x 4 ft or 600 x 1200 mm suspended

ceiling tiles and which can all be installed from beneath the ceiling tile.

Overall front face diameter shall not exceed 252 mm (9.9 in), overall depth from the bottom of the ceiling shall not exceed 190 mm (7.5 in), and shall weigh no

more than 3.4 kg (7.5 lb).

Control 26C: Nominal impedance shall be 16 ohms.

Control 26CT: The loudspeaker shall be equipped with transformer for use in either 70.7 or 100V distributed-line speaker systems, with taps selectable by rotary

switch located on the front panel so that the speaker does not have to be removed to adjust tap settings. Taps shall be nominally 60W @ 70V, 30W @ 70V (60W

@ 100V), 15W@ 70V (30W @ 100V), and 7.5W @70V (15W @ 100V).

The loudspeaker shall be the JBL Model Control 26C (Control 26CT).

Mounting Dimensions:

Dimensions in inches (mm)