JBLC31B - JBL Control 31 10inch 2 Way Monitor Loudspeaker 250W 100V Black Image 1

JBLC31B - JBL Control 31 10inch 2 Way Monitor Loudspeaker 250W 100V Black Image 2

JBLC31B - JBL Control 31 10inch 2 Way Monitor Loudspeaker 250W 100V Black Image 3

The Control 31 utilizes high-power components, computer optimized horn, and a complex network to achieve smooth, powerful high-fidelity performance, extended bandwidth, and well-controlled defined coverage from a compact loudspeaker.

The 250 mm (10 inch) low-frequency driver features a woven fiberglass cone for a high degree of weather capability and pure butyl rubber surround for clean sound quality, a high-temperature fiberglass voice coil former for high sensitivity, high output capability and stable performance under long-term high power working conditions. The optimized cone geometry provides for smooth frequency response and good off-axis performance. A linear suspension spider provides low distortion, while FEA-optimized motor construction produces minimum harmonic distortion. An aluminum coupler ring outside the pole post further reduces distortion and further increases the sensitivity.

Product Features

Components:
- 250 mm (10 in) woven fiberglass cone LF driver with 52 mm (2 in) voicecoil.
- High-output 2414H-C compression driver with 25 mm (1 in) exit, unique (patented) design and high-temperature polymer diaphragm.
250 Watt capability (in 8Ω thru setting), plus 150 Watt transformer for 70V or 100V distributed lines, with 8Ω thru bypass.
Extended bandwidth, extremely smooth frequency response
Highly outdoor-capable design with included WeatherMax™ multi-layer grille and optional marine-kit grille for salt-air environments.
110° x 110° symmetrical coverage.
Includes InvisiBall® mounting hardware plus ten 6 mm attachment points for suspension and optional U-bracket.
Included sealed input panel cover and screw-down input terminals for secure connection.

Product Specifications

General

Frequency Range (-10 dB): 33Hz – 19kHz
Frequency Response (±3 dB): 42Hz – 14kHz
Power Ratings:
- 250 W (1000 W peak), 2 hrs.
- 200 W (800 W peak), 100 hrs.
Maximum SPL @ 1m: 116 dB continuous (123 dB peak)
Nominal Sensitivity: 92 dB
Coverage Angle: 110° x 110°
Directivity Factor (Q): 5.7, averaged 500 Hz to 10 kHz
Directivity Index (DI): 7.3 dB, averaged 500 Hz to 10 kHz
Nominal Impedance: 8 ohms
Crossover Type: 2nd order low-pass, 2nd order high-pass, plus conjugate shaping circuitry.
Transformer Taps:
- 70V: 150W, 75W, 38W, 19W
- 100V: 150W, 75W, 38W
- Insertion Loss: <0.65 dB at any tap setting
- Thru Setting: 8Ω nominal
Recommended High-Pass: Protective 40 Hz high-pass (24 dB/oct) for any transformer tap and for 8Ω operation
Low Frequency: 250 mm (10 in) woven-fiberglass cone with pure butyl rubber surround, 52 mm (2 in) voice coil on high-temperature fiberglass voice coil former, optimized cone geometry, linear suspension spider, FEA-optimized motor construction, aluminum ring on pole piece.
High Frequency: JBL 2414H-C compression driver with 25 mm (1 in) diaphragm and voice coil diameter, high temperature polymer diaphragm, JBL-patented design, fluid-cooled.
Enclosure Material: High impact Polystyrene (HIPS) with 10% glass fill plus patent-pending internal 5 mm foamed polyurethane secondary mold for additional cabinet density.
Grille: Zinc-plated and thermoset-composite coated steel, WeatherMax™ multi-layer foam with tight-weave mesh vapor barrier.
Installation: InvisiBall wall-mounting system included. Ten 6 mm attachment points on cabinet for suspending or for optional U-bracket. One 6 mm secondary safety attachment point (for forged shoulder steel eyebolt, not included) on back panel.
Environmental: IP-55 per IEC529. Exceeds MilSpec 810 for humidity, salt-spray, temperature & UV. Passes MilStd-202F for salt spray. Optional MTC-30MK marine-kit grille increases longevity in highly corrosive environments.
Termination: Screw-down terminal strip, zinc-plated copper based, nickel-plated metal screws and washers. Accepts up to 9 mm outside 4 mm inside open lugs (#6, #8, or #10 lug), plus bare wire (up to 12 AWG / 2.5 mm2).
Agency Rating: Transformer is listed per UL1876
Colors: Black (RAL9004) or white (-WH, RAL9003)