| SF 8CT SUB |
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| Audio/acoustic and electrical |
| Speaker type | In-ceiling subwoofer |
| Frequency range | 45 Hz to 300 Hz, -10 dB, half space (per IEC 60268-5) |
| Power capacity | 100 W (rms) continuous pink noise (per IEC 60268-5)
200 W (rms) continuous program |
| Rated maximum input voltage (MIV) | 25.1 V (78.9 W at 8 ohms) (per AES2-2012) |
| Maximum SPL | 108 dB, 1 m (based on maximum input voltage), full space
119 dB, 1 m (linear), full space |
| Nominal sensitivity | 90 dB SPL, 1 W/1 m, corner loading |
| Nominal impedance | 8 ohms |
| Low-pass filter | 120 Hz, 6 dB/octave rolloff, (switch-selectable, enabled by default) |
| Nominal coverage angle | 180˚ conical coverage |
| Driver | (1) 8" (203 mm) polypropylene cone, with moisture-resistant coating |
| Rotary switch taps | 70V: 64 W, 32 W, 16 W, 8 W, 8 ohms direct
100V: null, 64 W, 32 W, 16 W, 8 ohms direct |
| Overload protection | Full range power limiter with the 8 ohm direct input only, protecting the woofer and crossover |
| Input connector | (1) 5 mm captive screw connector, 4-pole for one input and 1 loop-through |
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| General |
| Package | 1 speaker |
| Included accessories | Cutout template/paint shield, setup guide, mounting screws, 2 V-rails, 1 C-ring, 1 round grille, 1 cable clamp, 1 captive screw connector |
| 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 |
| Enclosure type | Plenum rated, fire-resistant (UL94V-0) baffle / steel back can / magnetically
attached powder-coated steel grille with plastic bezel |
| Enclosure outer dimensions | 14.46” H x 12.74” diameter (367 mm H x 324 mm diameter)
14.39” H (366 mm H) from front of ceiling tile to back of rear enclosure |
| Cutout dimensions | 12.59" (320 mm) |
| Product weight | 15.8 lbs (7.2 kg) |
| Regulatory compliance | CE, RoHS, UL 1480A, UL 2043, WEEE |
| Safety | CE, UL 2043, CAN/ULC-S142:16, UL 1480A, NFPA 90A, NFPA 70
UL Listed for use in plenum airspaces:
UL 2043 and CAN/ULC-S142:16 listed for heat and smoke release
UL 1480A listed for commercial and professional audio systems
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| Environmental | RoHS, WEEE |
| Product warranty | 5 years parts and labor |
| NOTE | All nominal levels are at ±10%. |
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| NOTE | Specifications are subject to change without notice. |
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| NOTE | Shipping weights and dimensions are available at www.extron.com. |
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| (5574-D2) |