Description

The ISP Technologies HDL 3112™ speakers are a 3-way line array box of the highest performance and fidelity.  The HDL 3112 is an 8 degree vertical box for long throw applications and is also available in a 15 degree near-field downfill cabinet.  ISP Technologies HSL 3112 is a high performance small format line array cabinet with a true 3-way design where most other small format line array cabinets only offer 2-way performance.

A 2-way line array box is compromised in terms of its mid-range performance due to the fact that the low frequency woofer must deliver mid-range performance up to the crossover frequency of the HF driver typically between 1.2K and 2.0K hertz.  The result is that most small format line arrays suffer from lack of mid-range clarity and headroom.

By using a larger woofer and a taller box than typical 2 x 8 boxes, a longer line is formed from an equal number of boxes, resulting in better LF and low mid pattern control.  The ISP Technologies HDL 3112 crosses over at 700 Hz from the woofer cones to a special 3 inch mid-range compression driver.  The result is more consistent mid-range over wider angles, better pattern control, better projection, and far greater clarity on the voice and instruments.

The HDL 3112 line array also uses 3 high performance 1.75 inch high frequency poly diaphragm compression drivers crossed over at 1.8KHz hertz to deliver sweet, smooth high frequency performance, without the fatique associated with metallic diaphragm drivers.  In addition, the boxes are carefully designed with the aid of our proprietary LINESIM™ simulation program to achieve smooth response at all frequencies and listening positions.

Specs

Configuration: 3-way
LF Drivers: 1 x 12 inch, very high sensitivity, neo magnet, reflex loaded
MF Driver: 1 x 3 inch compression, very low moving mass, neo magnet, horn loaded
HF Drivers: 3 x 1.75 inch compression, neo magnets, poly diaphragms 
Coverage: 8 V x 110 H, 15 V x 110 H 
Frequency Resp: 68 Hz (4 boxes) to 17 KHz
Construction: Baltic Birch Plywood
Dimensions: 30” W x 14.1” H x 20.6” D
Weight: 85lbs.
Amplifier: 800 W RMS, 3 channels, high current DCAT, fan cooled
Power Required: 5 Amps x 120 VAC
Crossover: Outboard digital processor required which is capable of 3-way crossover.
Rigging: 16 Boxes @ 7:1 safety factor, Aluminum alloy

System Capabilities

The system was modeled using our proprietary LINESIM™ program to predict the performance. This program performs extensive calculations based on the position and output of each driver to predict the sound level at multiple frequency bands from the first row to the last row. The system exhibits outstanding balance in all frequency bands. Below are the continuous output capabilities of four 8-degree boxes of the system in each frequency band, normalized to 1 meter distance:

LF: 135 dB @ 1M
MF: 142 dB @ 1M
HF: 142 dB @ 1M

(1 degree splay between boxes, listening position at 10 meters)

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