JBL Control HST

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Overview

ELIMINATION OF WALL REFLECTION

The patent-pending design includes a wall-facing woofer, two horizontally splayed tweeters, a wall bracket that spaces the speaker the required distance from the wall, and a tapered cabinet that provides proper loading and dispersion of the sound. With most on-wall (surface-mount) speakers, the baffle of the speaker is some distance from the wall. It is the nature of low and low-mid frequency sound waves to wrap around the speaker, where they reflect back out from the wall, recombining with the original sound. When this occurs, some frequencies add coherently to the original sound and other frequencies cancel, causing peaks and dips in the resulting frequency response and inconsistencies from location to location within the listening space. By substantially reducing this occurrence, Control HST is able to provide a flatter resulting frequency response along with a more consistent sound character throughout the room.

SPLAYED TWEETERS

The dual tweeters feature aluminium diaphragms with a CMMD treat, polyurethane surround, a neodymium magnet, and fluid-cooling for high output, low distortion and humidity resistance.

WALL FACING WOOFER

The well-damped woofer incorporates a CMMD ceramic metal matrix diaphragm for a very high stiffness-to-weight ratio, high output, resistance to humidity and long-term durability.

CONTROLLED SOUND

Engineered noise cancelling allows Control HST to provide a flatter resulting frequency response along with a more consistent sound character throughout the room.

Specifications

Frequency Range (-10 dB)	50 Hz – 20 kHz
Frequency Response (±3 dB)	68 Hz – 18 kHz
Coverage Pattern	180° H x 160° V (1 kHz – 2 kHz, nominal), 160° H x 150° V (ave, 1 kHz – 16 kHz)
Directivity Factor (Q)	5.4 (1 k – 16 kHz)
Directivity Index (DI)	7.2 dB (1 k – 16 kHz)
System Power Rating (IEC)	100 W (400 W peak), 2 hrs, 75 W (300 W peak), 100 hrs.
Sensitivity (2.83V @ 1m)	88 dB (Ave. 80 Hz – 20 kHz)
Maximum SPL	Direct 8Ω: 108 dB (peaks of 114 dB), 60 W Tap: 97 dB @ 60W
Crossover Network	1.6 kHz, 3rd order (18 dB/oct) high-pass to HF, 2nd order low-pass to LF
Nominal Impedance	8 ohms
Transformer Taps	70V: 60W, 30W, 15W, 7.5W, 100V: 60W, 30W, 15W
Low Frequency Driver	CMMD™ ceramic metal matrix diaphragm cone, 25 mm (1 in) voice coil.
High Frequency Drivers	Two splayed tweeters with CMMD-treated aluminium diaphragms, polyurethane surround, polyimide bobbin, neodymium magnet, and fluid-cooling.
Enclosure	Fiberglass-reinforced ABS
Attachment	Four M6 points for included U-bracket. Additional M6 insert point provided for adding secondary safety attachment cable. U-bracket must be utilized. Must be mounted on wall surface. Do not mount on pole.
Grille	Aluminium grille, painted to match cabinet colour.
Input Connection	Removable locking euro-block 4-pin connector with screw-down terminals for bare wire. Two pins for input and two pins for parallel loop-thru. Max. wire 12 AWG (2.5 mm2).
Environmental	IP54 per IEC529. Exceeds Mil Spec 810 for humidity, salt spray, temperature & UV, and ASTM G85 for salt spray.
Dimensions	362 x 256 x 184 mm (14.25 x 10.1 x 7.2 in), cabinet 208 mm (8.2 in) depth with included bracket.
Colours	Available in black (RAL9004) and white (-WH, RAL9016)
Net Weight	3.6 kgs (8.0 lb), 4.3 kgs (9.5 lb) with U-bracket
Included Accessories	U-bracket, matches loudspeaker colour (black or white), zinc-rich extra-thick powder coated steel.