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JBL 8 Inch Ceiling Speaker For Pre-Install Backcan

Product Code: JB8138
Manufacturer: JBL

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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.

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


Component 200 mm (8 in) Full-Range, Dual-cone

Frequency Range (-10 dB) 95 Hz – 18 kHz

Coverage (2 kHz) 90° conical

Sensitivity (2.83V@ 1m) 97 dB (1 kHz - 8 kHz)

Driver Power Capacity 40W (160W peak), 2 hrs

25W (100W peak), 100 hrs

70V/100V Transformer Taps 6W, 3W, 1.5W, (0.75W at 70V only)

Termination 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 and

MTC-81TB8 tile bridge. Four screw holes at industry standard 286 mm 

(11.25 in) mounting circle.


(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 Dimension 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

  • UK Based Company
  • Part of A.C. Entertainment Technologies - has its trading origins over 45 years ago
  • UK Stock Holding
  • UK Warranty
  • Free Delivery Over £150
  • Great Prices
  • Over 20 Years' Experience
  • Specialist Advice
  • Fast Delivery
  • Finance Options Available

With years of experience supplying Businesses, Government Organisations, Charities, Schools, Colleges and Universities, we invite you to take advantage of our knowledge to help you make an informed choice, ensuring you are purchasing the best music products for your needs. With specialists in PA Systems, Pro Audio & Live Sound equipment on hand to answer calls and emails, you're in the best possible hands.

Contact us now to discuss your requirements or to request a quotation. Additional discounts may apply for educational establishments or size and value of order.

Purchase orders can be sent directly to or apply for your cash or credit account here. Terms and conditions will apply.

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