8138

8" (200 mm) Full-Range In-Ceiling Loudspeaker for use with Pre-Install Backcans

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8" (200 mm) Full-Range In-Ceiling Loudspeaker for use with
Pre-Install Backcans

The 8138 is an 8" ceiling speaker designed for use with a pre-install inceiling backcan, resulting in highfidelity performance at a costeffective 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
 

Downloads

  Version Language Size Uploaded
Specifications
8138 Spec Sheet
updated: Apr 29, 2019
    363 KB Apr 29, 2019
Manuals
Ceiling Speaker Accessory Guide
updated: Oct 18, 2019
    127 KB Oct 18, 2019
Brochures
Commercial Sound Full Line 2015 Catalog
updated: Oct 21, 2019
    2.02 MB Oct 21, 2019
Full Line 2015 Catalog
updated: Jan 11, 2020
    11.7 MB Jan 11, 2020
Compliances
8138 Declaration of Conformity
updated: Oct 18, 2019
    88 KB Oct 18, 2019
Software
Distributed System Design (DSD) v3.6.2
version 3.6.2, updated: Jan 14, 2020
3.6.2     805 KB Jan 14, 2020
Faqs
8138 Frequently Asked Questions
updated: Apr 29, 2019
    31.5 KB Apr 29, 2019
Images
8138 Hi Res Image
updated: Apr 29, 2019
    12.1 MB Apr 29, 2019
Speaker Tunings
Commercial, CBT, and AWC Tunings 181030
updated: Feb 24, 2020
    557 KB Feb 24, 2020

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Specifications

Drivers 200 mm (8 in) Full-Range, Dual-cone
Frequency Response (-10dB) 95 Hz – 18 kHz
Coverage Angle 90° conical
Sensitivity (1W, 1m) 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

Accessories

MTC-81BB8 | Pre-Install In-Ceiling Backcan
MTC-81BB8 Main photo
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Pre-Install In-Ceiling Backcan

The MTC-81BB8 is designed for use in applications requiring preinstalled backcans and is compatible with ceiling speakers having a 286 mm (11.25 in) mounting circle diameter, such as the JBL 8138 ceiling loudspeaker, and the JBL MTC-81TB8 tile bridge for suspended ceilings.

  • Fits 8138 speaker and MTC-81TB8 Tile Bridge
  • Extra-large 7.4 liter (0.26 cu ft) volume allows for extra bass
  • Industry standard 286 mm (11.25 in) mounting circle
  • Five conduit knockouts
  • Nesting during storage minimizes storage space requirements

Documentation
MTC-81TB8 | Pre-Install In-Ceiling Tile Bridge for Pre-Install Backbox
MTC-81TB8  Main photo
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Pre-Install In-Ceiling Tile Bridge for Pre-Install Backbox

The MTC-81TB8 tile bridge is designed for use in applications requiring pre-installed backcans in suspended ceiling applications and is compatible with ceiling speakers having a 286 mm (11.25 in) mounting circle diameter, such as the JBL 8138 ceiling loudspeaker, and the JBL MTC-81BB8 pre-install backbox.

  • Fits 8138 speaker and MTC-81BB8 backbox
  • Load-bearing bridge eliminates ceiling tile sag by distributing weight to the ceiling’s support system
  • Rust-resistant 19-Gauge (1 mm thick) steel construction and e-coated finish ensures long service life.
  • Fits 610 mm (24 in) and 600 mm (23.6 in) tile grids

Documentation

Support/FAQs

8138

8" (200 mm) Full-Range In-Ceiling Loudspeaker for use with Pre-Install Backcans