JBL 8138

8" In-Ceiling Speaker (for use with Pre-Installed Backcans, Pack of 4)

OUR PART #: 8138 Write the First Review.

  • Clear sound from an 8" 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.
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Our Price: $49.88

This product must be purchased in multiples of 4

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JBL's 8138 is an 8" ceiling speaker designed for use with a pre-installed in-ceiling backcan, resulting in high-fidelity performance. The 8138 is ideal for a wide variety of commercial sound applications from restaurant and retail to professional offices and reception areas.

The built-in 6 Watt transformer allows use on 70V or 100V distributed speaker lines. High sensitivity of 97 dB delivers maximum sound levels using minimal amplifier power, allowing the use of smaller power amplifiers compared to when using lower sensitivity drivers.

The driver features a 25 mm (1") voicecoil with Kapton coil former for reliability. The treated cloth surround provides deeper bass response compared with typical paper-roll surrounds, for fuller sound quality.

The 8138 fits the MTC-81BB8 backcan and MTC-81TB8 tile bridge, or can be used with most in-ceiling backcan/tile bridge systems designed with four mounting points on a 286 mm (11.25") diameter mounting circle.

Features:

  • Clear sound from an 8" 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:

  • Component: 200 mm (8") 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)
  • Color Codes:
    • Black = Common
    • Orange = 6W at 70V
    • Brown = 3W at 70V; 6W at 100V
    • Blue = 1.5W at 70V; 3W at 100V
    • White = 0.75W at 70V; 1.5W at 100V
  • Termination: Bare Wire
  • Magnet: 10 oz. (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") mounting circle.
  • Dimensions: 12.9" dia. baffle x 3.3" D from back of baffle (327 x 84 mm). Overall depth, 3.9" (99 mm).
  • Mounting Points: 4 points on 286 mm (11.25") dia. mounting circle
  • Ceiling Cutout Dimension:
    • 300 mm (11.75") with tile bridge and backbox.
    • 228 mm (9.0") diameter as stand alone.
  • Net Weight: 3 lbs. (1.4 kg)
  • Included Accessories: Integral grille, 4 pcs M4 x 40 mm tapping screws

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