JBL 8138 | 8in Full-range In-ceiling Loudspeaker for Pre-install Backcans (4 speakers)

The JBL 8138 is a premium 8-inch ceiling speaker that boasts impeccable sound quality, making it ideal for a wide array of commercial applications ranging from restaurants and retail stores to professional offices and reception areas. Designed for use with pre-install in-ceiling backcans, this full-range loudspeaker provides high-fidelity performance at a highly cost-effective price point. Its stylish and contemporary appearance seamlessly enhances any decor, ensuring it not only sounds great but looks great too.

What sets the JBL 8138 apart is its 8-inch dual-cone full-range driver, delivering clear and robust audio. Its extraordinary sensitivity of 97 dB ensures maximum sound levels while utilizing minimal amplifier power. The 8138 also includes a 6W transformer, making it suitable for use on 70V/100V distributed speaker lines.

Whether you’re setting up a new commercial sound system or upgrading an existing one, the JBL 8138 guarantees a user-friendly installation thanks to its four-point mounting design that fits an industry-standard 286 mm (11.25-inch) diameter mounting circle. When paired with the MTC-81BB8 backcan and MTC-81TB8 tile bridge, this ceiling speaker becomes a top-tier choice for any sound setup.

Key Features

• Stylish, contemporary appearance enhances any decor
• Clear sound from an 8-inch dual-cone full-range driver
• Very high sensitivity of 97 dB for maximum sound levels using minimal amplifier power
• 6W transformer for use on 70V/100V distributed speaker lines
• Easy installation with in-ceiling backboxes having four mounting points on an 11.25-inch diameter mounting circle
• Compatible with MTC-81BB8 backcan and MTC-81TB8 tile bridge

Specifications

• 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
• Dimensions (Diameter x Depth): 327 mm (12.9 in) diameter baffle x 84 mm (3.3 in) depth from back of baffle. Overall depth, 99 mm (3.9 in)
• Mounting Points: 4 points on 286 mm (11.25 in) diameter mounting circle
• Ceiling Cutout Dimension: 300 mm (11.75 in) with tile bridge and backbox. 228 mm (9.0 in) 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

Package Contents

• 4 x JBL 8138 8-inch Full-range In-ceiling Loudspeakers
• 4 x Integral grilles
• 16 x M4 x 40 mm tapping screws