K3.3

K3.3 type loudspeakers are the latest achievement of the Rduch company. They were specially constructed for the sound systems of churches and various public buildings. These are full-range loudspeakers with exceptionally high efficiency. The K3.3 series of loudspeakers has been designed to provide significantly increased directivity of sound emission.

K3.3 loudspeakers provide:

aesthetic appearance
homogeneous transmission of natural sound throughout the room
high efficiency
up-down handle
version: 100V (power regulation)
housing made of aluminum
covered with weather-resistant paint
colors available according to the RAL palette

Technical data		K3,3-30		K3,3-45		K3,3-70		K3,3-90		K3,3-120		K3,3-140
1/1 power	Impedance	30W	333Ω	45W	222Ω	70W	142Ω	90W	111Ω	120W	83Ω	140W	71Ω
1/2 power	Impedance	15W	666Ω	22,5W	444Ω	35W	285Ω	45W	222Ω	60W	166Ω	70W	142Ω
1/4 power	Impedance	7,5W	1,33kΩ	11,25W	888Ω	17,5W	571Ω	22,5W	444Ω	30W	333Ω	35W	285Ω
1/8 power	Impedance	3,75W	2,66kΩ	5,625W	1,77kΩ	8,75W	1,14kΩ	11,25W	888Ω	15W	666Ω	17,5W	571Ω
Number of full range ferrite speakers (3,3″)		3 pcs.		4 pcs.		6 pcs.		9 pcs.		12 pcs.		12 pcs.
Number of neodymium tweeters (1″)		–		1 pcs.		2 pcs.		3 pcs.		4 pcs.		4 pcs.
SPL (1W/1m)		91 dB		93 dB		95 dB		96 dB		99 dB		99 dB
SPL max		108 dB		110 dB		114 dB		119 dB		120 dB		120,5 dB
Beam range		4 m		7 m		10 m		13 m		15 m		16 m
Frequency response (+/-3dB)		135 ÷ 18000 Hz		130 ÷ 18000 Hz		125 ÷ 18000 Hz		110 ÷ 18000 Hz		105 ÷ 18000 Hz		105 ÷ 18000 Hz
Input voltage		100 V		100 V		100 V		100 V		100 V		100 V
The height of the suspension of the colum		1,7 m		1,6 – 1,8 m		1,5 – 1,9 m		1,4 m		1,4 m		1,4 m
Column slope		7 cm		7 cm		7 cm		7 cm		7 cm		7 cm
Dimensions height/width/depth [mm]		400/90/95		550/90/95		800/90/95		1100/90/95		1450/90/95		1450/90/95
Weight [kg]		3,2		4,2		5,9		9,5		11,4		11,4