JBL CONTROL-31 Datasheet
CONTROL 31
Two-Way High-Output Indoor-Outdoor Monitor Speaker
Features:
Components:
• 250 mm (10 in) woven berglass 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 8 thru setting), plus 150 Watt
transformer for 70V or 100V distributed lines, with 8
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.
Applications:
e Control 31 utilizes high-power components, computer optimized
horn, and a complex network to achieve smooth, powerful high-delity
performance, extended bandwidth, and well-controlled dened coverage
from a compact loudspeaker.
e 250 mm (10 inch) low-frequency driver features a woven berglass cone
for a high degree of weather capability and pure butyl rubber surround for
clean sound quality, a high-temperature berglass voice coil former for high
sensitivity, high output capability and stable performance under long-term
high power working conditions. e optimized cone geometry provides
for smooth frequency response and good o-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.
e high-output high frequency compression driver features a unique
patented design, high temperature polymer diaphragm, and uid-cooling
for high output levels with low distortion.
e high-frequency waveguide was designed using JBL’s advanced
ImageControl™ process for accurate, low-distortion control, with smooth
frequency response and excellent sound character throughout the frequency
band, over the entire listening area. It’s 110° x 110° symmetrical coverage,
provides the same coverage regardless whether the cabinet is installed in
vertical or horizontal orientation.
e eld-proven top-quality line distribution transformer, designed for
minimal insertion loss and reduced saturation, allows for use on either 70V
or 100V distributed speaker lines. In the ru setting, the 8 ohm impedance
allows for the use of up to two speakers on a 4-ohm capable amplier
channel.
e included InvisiBall mounting method is simple to install, aims easily
and provides a high degree of the deterrence. InvisiBall allows horizontal
rotation of up to 41° o-axis and vertical rotation of up to 36° (horn end
inward) or 23° (woofer end inward). Attachment points for the optional
MTC-30UB (& “-WH” for white) U-bracket allows for compact
installation and is particularly useful for low-prole applications.
Weather resistance has been maximized. e low-frequency driver features
a woven berglass cone, a pure butyl rubber surround, and the basket
is rear loaded into the bae to minimize exposure. e high-frequency
compression driver has a highly weather capable polymer diaphragm. e
grille is thermoset composite coated and stands up well to UV as well as
humidity. e grille is backed with our WeatherMax™ multi-layer foam
and tight-weave screening to help prevent incursion of water. Nickel/zinc
rust-resistant terminals ensure a secure input connection. An MTC-PC2
sealed-entrance cover is included to further protect the speaker’s terminals.
e white-version cabinets are painted with a UV-resistant nish to resist
yellowing due to UV exposure.
Available in black or white (-WH), the cabinet will accept a variety of paints
to match any décor.
CONTROL 31
Specications:
Two-Way High-Output Indoor-Outdoor Monitor Speaker
Transducers:
Physical:
Frequency Range¹ (-10 dB):
Frequency Response¹ (±3 dB):
Power Ratings ²:
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 Typ e: 2nd order low-pass, 2nd order high-pass, plus conjugate shaping circuitry.
Transformer Taps: 70V: 150W, 75W, 38W, 19W
Recommended High-Pass: Protective 40 Hz high-pass (24 dB/oct) for any transformer tap and for 8 operation.
Low Frequency: 250 mm (10 in) woven-berglass cone with pure butyl rubber surround, 52 mm (2 in) voice coil on high-
High Frequency: JBL 2414H-C compression driver with 25 mm (1 in) diaphragm and voice coil diameter, high temperature
Enclosure Material: High impact Polystyrene (HIPS) with 10% glass ll plus patent-pending internal 5 mm foamed polyurethane
Installation: InvisiBall wall-mounting system included. Ten 6 mm attachment points on cabinet for suspending or for
Environmental: IP-55 per IEC529. Exceeds MilSpec 810 for humidity, salt-spray, temperature & UV. Passes MilStd-202F for
Termination: Screw-down terminal strip, zinc-plated copper based, nickel-plated metal screws and washers. Accepts up to 9
Agency Rating : Transformer is listed per UL1876
Dimensions: 593 x 372 x 345 mm (23.3 x 14.6 x 13.5 in)
Weight (ea): 18.8 kg (41.5lb)
Shipping Weight (ea): 22.0 kg (48.5 lb)
Included Accessories: 1 pc MTC-PC2 input panel cover, InvisiBall wall-mounting system, 6 mm x 305 mm InvisiBall hex wrench.
Optional Accessories: MTC-30MK Marine-Kit Grille in black or white (-WH), consisting of grille and protective covers for bae
33Hz – 19kHz
42Hz – 14kHz
250 W (1000 W peak), 2 hrs.
200 W (800 W peak), 100 hrs.
100V: 150W, 75W, 38W
Insertion Loss: <0.65 dB at any tap setting
ru Setting: 8 nominal
temperature berglass voice coil former, optimized cone geometry, linear suspension spider, FEA-optimized
motor construction, aluminum ring on pole piece.
polymer diaphragm, JBL-patented design, uid-cooled.
secondary mold for additional cabinet density.
Grille: Zinc-plated and thermoset-composite coated steel, WeatherMax™ multi-layer foam with tight-weave mesh
vapor barrier.
optional U-bracket. One 6 mm secondary safety attachment point (for forged shoulder steel eyebolt, not
included) on back panel.
salt spray. Optional MTC-30MK marine-kit grille increases longevity in highly corrosive environments.
mm outside 4 mm inside open lugs (#6, #8, or #10 lug), plus bare wire (up to 12 AWG / 2.5 mm2).
Colors: Black (RAL9004) or white (-WH, RAL9003)
screws.
MTC-30CM (&-WH) Ceiling-Mount Adapter for installing speaker down from the ceiling.
MTC-30UB (&-WH) U-Bracket
¹ In half-space (on-wall, 2π).
² At 8Ω setting. Continuous Pink Noise rating is IEC-shaped pink noise with a 6 dB crest factor. Continuous Program Power is defined as 3 dB above the Continuous Pink Noise Rating and
is a conservative expression of the system’s ability to handle normal speech and music program material.
Calculated from sensitivity and power handling, exclusive of power compression.
Half-space (on-wall) averaged 100 Hz – 10 kHz, 2.83V.
Coverage angles typical within 600 Hz – 4 kHz range and average between 300 Hz and 16 kHz.
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