The JBL 8138 is a cost-effective 8” ceiling speaker for commercial applications like restaurants and retail spaces, designed to use with a pre-install backcan.
From the Manufacturer
The 8138 is an 8″ ceiling speaker designed for use with a pre-install in-ceiling backcan, resulting in high fidelity performance at a cost effective price point. The 8138 is ideal for a wide variety of commercial sound applications from restaurant and retail to professional offices and reception areas.
Features
Stylish, contemporary appearance enhances any decor.
Clear sound from an 8 inch dualcone full-range driver.
Very high sensitivity of 97 dB for maximum sound levels using minimum amplifier power.
6W transformer for use on 70V/100V distributed speaker lines
Installs to in-ceiling backboxes having 4 mounting points on an 11.25″ (286 mm) diameter mounting circle.
For use with MTC-81BB8 backcan and MTC-81TB8 tile bridge
Specifications
Drivers: 200 mm (8 in) Full-Range, Dual-cone
Frequency Range (-10dB): 95 Hz – 18 kHz
Coverage Angle: 90° conical
Sensitivity: 97 dB (2k – 8k Hz)
Driver Power Capacity: 40W (160W peak), 2 hrs25W (100W peak), 100 hrs
Transformer Taps: 6W, 3W, 1.5W, (0.75W at 70V only)
Input Connectors: Bare Wire
Magnet: 10 ounces (283 g)
Safety Agency: Transformer is UL registered per UL1876
Installation: Full assembly consists of 8138 speaker plus MTC-81BB8 backbox andMTC-81TB8 tile bridge. Four screw holes at industry standard 286 mm (11.25 in) mounting circle.
Dimensions (Diameter x Depth): 327 mm (12.9″) diameter baffle x 84 mm (3.3″) depth from back of baffle. Overall depth, 99 mm (3.9″)
Mounting points: 4 points on 286 mm (11.25 in) diameter mounting circle
Ceiling Cutout Size: 300 mm (11.75″) with tile bridge and backbox.228 mm (9.0″) diameter as stand alone.
Net Weight: 1.4 kg (3.0 lb)
Included Accessories: Integral grille, 4 pcs M4 x 40 mm tapping screws
Optional Accessories: MTC-81BB8 backcan, MTC-81TB8 tile bridge
Power Rating: See transformer taps
Maximum SPL (1m): 105 dB (top 70V/100V tap)
Color: White
Backcan: formed steel (accessory)
Baffle/Rim: Plastic
Plenum Usage: Yes, with accessory backcan
