CS 26T Plus – Two-Way Open Back Ceiling Speakers with 70/100 V Transformer
Key Features
- Open back, infinite baffle design
- 6.5″ (165 mm) long-throw woofer
- 3/4″ (19 mm) ferrofluid-cooled dome tweeter mounted on an innovative honeycomb tweeter bridge
- 8 ohm direct or 70/100 volt operation on a six-position, behind-the-grille selector
- Frequency range: 42 Hz to 20 kHz, -10 dB, half space
- 60 watts continuous pink noise
- 120 watts continuous program
| CS 1226T Plus system — CS 120P and CS 26T Plus | |||
|---|---|---|---|
| General | |||
| Ambient temperature/humidity | Storage: -40 to +158 °F (-40 to +70 °C) / 10% to 90%, noncondensing Operating: +32 to +122 °F (0 to +50 °C) / 10% to 90%, noncondensing | ||
| Mounting | Ceiling mountable with included hardware | ||
| Regulatory compliance | |||
| Safety | CE, UL 2043, UL 1480, NFPA 90A, NFPA 70 UL listed for use in plenum air spaces: UL 2043 listed for heat and smoke release (only when CS 26T Plus is used with CS 120P). UL 1480 listed for commercial and professional audio systems. | ||
| EMI/EMC | CE | ||
| Product warranty | 5 years parts and labor | ||
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| CS 120P Plenum Enclosure | |||
| General | |||
| Package | 2 plenum rear enclosures (1 pair) | ||
| Enclosure type | |||
| Enclosure materials | Aluminized fiberglass, plastic, MDF, steel | ||
| Enclosure design | 1′ x 2′ (30.5 cm x 61 cm) tapered cube | ||
| Insulation | Glass polyfill | ||
| Enclosure outer dimensions | 23.7″ L x 11.7″ W x 4.9″ D (60.1 cm L x 29.7 cm W x 12.4 cm D) | ||
| Cutout dimensions | |||
| Without fiberglass tile adapter | 9.07″ (230.5 mm) diameter | ||
| With fiberglass tile adapter | 9.21″ (234 mm) diameter | ||
| Product weight | 6.0 lbs (2.7 kg) | ||
| CS 26T Plus Speaker Cartridge | |||
| Audio/acoustic and electrical | |||
| Speaker type | 2-way ceiling speaker | ||
| Frequency range | 42 Hz to 20 kHz, -10 dB, half space (per IEC 60268-5) | ||
| Frequency response | 58 Hz to 16 kHz, +/- 3 dB, half space | ||
| Power capacity | 60 W (rms) continuous pink noise (per IEC 60268-5) 120 W (rms) continuous program | ||
| Nominal sensitivity | 86 dB SPL, 1 W @ 1 m, half space | ||
| Nominal impedance | 8 ohms per speaker | ||
| Crossover frequency | 2.5 kHz | ||
| Nominal coverage angle | 112° conical coverage | ||
| Rotary switch taps | |||
| 70 V input | 32 W, 16 W, 8 W, 4 W, 2 W, 8 ohms direct | ||
| 100 V input | 32 W, 16 W, 8 W, 4 W, 8 ohms direct | ||
| Woofer | (1) 6.5″ (165 mm) polypropylene cone with moisture resistant coating | ||
| Tweeter | (1) 0.75″ (19.1 mm) PEI dome | ||
| Overload protection | Full range power limiter, protecting the tweeter, woofer, and crossover | ||
| Input/output connectors | (1) 5 mm captive screw connector, 4 pole with loop out | ||
| General | |||
| Package | 2 speakers (1 pair) | ||
| Mounting | Ceiling mountable with CS 120P enclosure or optional ceiling mounting kit | ||
| Enclosure type | |||
| Enclosure materials | High-impact, fire-resistant (UL94V-0) plastic | ||
| Enclosure design | Plastic, open back, infinite baffle | ||
| Grille material | Steel | ||
| Enclosure outer dimensions | 3.97″ H x 10.3″ diameter (10.1 cm H x 26.2 cm diameter) 3.63″ (9.2 cm) from front (bottom) of ceiling tile to top of connected captive screw connector | ||
| Cutout dimensions | |||
| Without fiberglass tile adapter | 9.07″ (230.5 mm) diameter | ||
| With fiberglass tile adapter | 9.21″ (234 mm) diameter | ||
| Product weight | 5.7 lbs (2.6 kg) | ||
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The Extron CS 26T Plus is a two‑way ceiling speaker featuring an open back, coaxial design with transformer for use in non‑plenum airspace environments. It delivers accurate voice and high performance, full-range audio reproduction with a 6.5" (165 mm) long-throw woofer and 3/4" (19 mm) ferrofluid-cooled dome tweeter. An innovative tweeter bridge provides smooth off-axis response and offers wide 112° conical coverage for flexibility in speaker spacing. With a frequency range of 42 Hz to 20 kHz, the CS 26T Plus is optimized for a wide range of paging and audio presentation applications for music, program, and voice. Music reproduction is also enhanced with the exceptional low-frequency response of the woofer. It features a power rating of 60 watts continuous pink noise and 120 watts continuous program capacity.
The 112° conical dispersion of the CS 26T Plus allows for greater flexibility in speaker spacing and placement. The CS 26T Plus is designed with wide, uniform coverage to eliminate hot spots. It offers both direct 8 ohm or 70/100 volt operation with a behind-the-grille, six-position selector switch. For room balancing with 70/100 volt systems, the selector switch allows for 32, 16, 8, 4, and 2 watt settings in 70 volt operation, and 32, 16, 8, and 4 watt settings for 100 volt operation.
The CS 26T Plus features a thin-edged bezel for a refined appearance on the ceiling. The grille attaches magnetically to the baffle and quickly snaps into place. The white grille and bezel can be painted to match the architectural elements of the environment. If installing the CS 26T Plus into a ceiling tile, the optional Ceiling Mount Kit is recommended to prevent deforming or breaking the ceiling tile.
CS 26T Plus speakers are sold in pairs and include a 5 year parts and labor warranty.
Features
- Open back, infinite baffle design
- 6.5" (165 mm) long-throw woofer
- 3/4" (19 mm) ferrofluid-cooled dome tweeter mounted on an innovative honeycomb tweeter bridge
- 8 ohm direct or 70/100 volt operation on a six-position, behind-the-grille selector —
- 8 ohm direct
- 70 volt: 32, 16, 8, 4, and 2 watt selectable
- 100 volt: 32, 16, 8, and 4 watt selectable
- Frequency range: 42 Hz to 20 kHz, -10 dB, half space
- Frequency response: 58 Hz to 16 kHz, ±3 dB, half space
- 60 watts continuous pink noise
120 watts continuous program - 112° conical dispersion provides wide coverage and allows for flexible speaker placement
- Internal driver overload protection
- Thin bezel and magnetically attached grille
- Spring-loaded locking arms for quick installation — Supports ceilings from 0.28" (7 mm) to 1.27" (32 mm) thick
- Optional Ceiling Mount Kit available for use with ceiling tiles, part #70‑996‑01 – includes C-rings & V-rails
- Grille and bezel are available in white only and may be painted to match environment
- UL 1480 listed for safety
- 5 year parts and labor warranty



