"Preliminary Information"

The IS twelve two (122) series of loudspeakers are specifically designed for providing reinforcement in fixed installations where high sonic performance and flexibility in precise pattern control are critical. Precision designed with Mathematically Modelled Dispersion ™ the twelve three series provide exceptionally linear pattern control through crossover making the series perfect for critical applications. Self powered versions used in conjunction with Klein+Hummel K8 products provide a factory tuned and easily-managed reinforcement system for night clubs, auditoria, houses of worship, performance halls, arenas and stadiums.

Driver Sizes and Types	12" woofer with 4" voicecoil + 1" Horn
Frequency Response (+/- 3 dB)	90 Hz to 19 kHz
Frequency Response (-10 dB)	58 Hz to 22 kHz
Sensitivity of loudspeaker system with passive crossover (fullspace)	97 dB/1W/1m
Sensitivity of individual drivers	97dB/1W/1m woofer, 110dB/1W/1m MF/HF
Coverage Pattern, nominal	80° x 50°
Directivity Factor (Q)	tba
Directivity Index (DI)	tba
Passive Crossover point, slope and type	LF/HF: 2500 Hz - 2.order
Impedance of individual drivers	4 ohms woofer + 16 ohms HF
Impedance of passive crossover	4 ohms nominal - 3,2 ohms minimal
Max. SPL: average and peak, measured (fullspace)	3% THD: 117 dB SPL, 10% THD: 124 dB SPL, Peak: 131 dB SPL
Max. SPL: average and peak, calculated (fullspace)	129dB SPL, Peak: 132 dB SPL
Power handling: RMS, program and peak (10ms)	800 watts rms, 1600 watts program, 3200 watts peak (10ms)
Cabinet material	18mm birch plywood
Cabinet finish	Black acrylic enamel
Grille	Painted steel Grille, 64% open, foam backing
Weight, with direct drive biamp module	37kg (82 lbs)
Weight, with passive crossover	37kg (82 lbs)
Dimensions	H: 594 mm, W(front): 377 mm, W(rear): 182 mm, D: 416 mm
Rigging points	(12) M10 threaded points
Side angle	20° each side
Connectors	2 Speakon® NL4, 1+/1-