CS 3T – Full-Range Open Back Ceiling Speakers with 70/100 V Transformer
Key Features
- Open back, infinite baffle design
- 3″ (76 mm) full-range driver
- 165° conical dispersion provides wide coverage and allows for flexible speaker placement
- 8 ohm direct or 70/100 volt operation on a 6 position, behind-the-grille selector
- 16 watts continuous pink noise
- 32 watts continuous program
- Internal driver overload protection
| CS 123T system — CS 120P and CS 3T | |||
|---|---|---|---|
| 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, NFPA 70, NFPA 90A UL listed for use in plenum air spaces: Meets UL 2043 for heat and smoke release (only when CS 3T is used with CS 120P). Meets UL 1480 for commercial and professional audio systems. | ||
| Environmental | Complies with the appropriate requirements of RoHS and WEEE. | ||
| Product warranty | 5 years parts and labor | ||
| 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 (2.72 kg) | ||
| CS 3T Speaker Cartridge | |||
| Audio/acoustic and electrical | |||
| Speaker type | 1-way full range in-ceiling speaker | ||
| Frequency range | 118 Hz to 20 kHz, -10 dB, half space (per IEC 60268-5) | ||
| Power capacity | 16 W (rms) continuous pink noise (per IEC 60268-5) 32 W (rms) continuous program | ||
| Nominal sensitivity | 83 dB SPL, 1 W, 1 m, 8 ohms direct, half space (per IEC 60268-5) | ||
| Nominal impedance | 8 ohms per speaker | ||
| Nominal coverage angle | 165° conical coverage (1 kHz to 4 kHz, weighted 2 kHz – 4 kHz) | ||
| Rotary switch taps | |||
| 70 V input | 16 W, 8 W, 4 W, 2 W, 1 W, 8 ohms direct | ||
| 100 V input | 16 W, 8 W, 4 W, 2 W, 8 ohms direct | ||
| Driver | (1) 3″ (76.2 mm) paper cone | ||
| Overload protection | Full range power limiter | ||
| 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 | ||
| Enclosure type | |||
| Enclosure materials | High-impact, fire-resistant (UL94V-0) plastic | ||
| Enclosure design | Plastic, open back, infinite baffle | ||
| Grille material | Steel | ||
| Enclosure outer dimensions | 3.0″ H x 10.3″ diameter (7.6 cm H x 26.2 cm diameter) Height is from front (bottom) of ceiling tile to top of withdrawn locking arms. | ||
| Cutout dimensions | |||
| Without fiberglass tile adapter | 9.07″ (230.5 mm) diameter | ||
| With fiberglass tile adapter | 9.21″ (234 mm) diameter | ||
| Product weight | 3.4 lbs (1.6 kg) | ||
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The Extron CS 3T is a full-range ceiling speaker featuring an open back and transformer for use in non-plenum airspace environments. It features a 3" (76 mm) full-range driver and can be used in 70/100 volt or 8 ohm operation. The CS 3T provides an extremely wide 165° conical dispersion for flexibility in speaker spacing. It is designed for applications where high intelligibility and maximum coverage is desired in voice reinforcement applications and low ceiling installations. The CS 3T features a power rating of 16 watts continuous pink noise and 32 watts continuous program capacity.
The CS 3T offers both direct 8 ohm or 70/100 volt operation with a behind-the-grille, six position power selector switch. For room balancing with 70/100 volt systems, the behind-the-grille power selector switch allows for 16, 8, 4, 2, and 1 watt settings in 70 volt operation, and 16, 8, 4, and 2 watt settings for 100 volt operation.
CS 3T speakers are sold in pairs and include a 5 year parts and labor warranty.
The CS 3T 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 3T into a ceiling tile, the optional Ceiling Mount Kit is recommended to prevent deforming or breaking the ceiling tile.
Features
- Open back, infinite baffle design
- 3" (76 mm) full-range driver
- 165° conical dispersion provides wide coverage and allows for flexible speaker placement
- 8 ohm direct or 70/100 volt operation on a 6 position, behind-the-grille selector —
- 8 ohm direct
- 70 volt: 16, 8, 4, 2, and 1 watt selectable
- 100 volt: 16, 8, 4, and 2 watt selectable
- 16 watts continuous pink noise
32 watts continuous program - 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 1.24" (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



