Inter M – CU-21FO

CU-21FO

Overview

CU-20 series models are column speakers achieving the reasonable price while maintaining the performance for announcement and emergency broadcasting. They are speakers with solid designs using simple and clean aluminum bodies. They also provide indoor and outdoor types in order to use them at various places such as shopping mall, school, parking lot, hotel, convention center, station, and airport.

Feature

● Use 4” full range of unit having excellent sound quality/articulation/durability

● Outdoor type, 100 V line of high impedance model

● Use solid aluminum body and fl ame retarding grill

● Use titanium color which does not damage the landscape of outdoor facility and prevents the discoloration even for long time use with clean & simple design

● Excellent waterproof, moistureproof, and dustproof (IP34)

● Have 3 types of models which you can select the optimal power among

10W/20W/40W depending on the use

● Show the maximum feature of exclusive speaker unit with the use of high-performance matching transformer produced by Inter-M

● Easy input power selection through wiring

● Provide exclusive knuckle bracket which enables the angle adjustment 30 degree downward and each 90 degree toward right and left

● KS certificate

Specification

Model		CU-21FO	CU-22FO	CU-24FO
Type		Single 4" Full-range Column Speaker	Dual 4" Full-range Column Speaker	Quad 4" Full-range Column Speaker
Unit		4"	4"	4"
Power Handling (AES)		10W	20W	40W
Input Power	100V	10/7.5/5/2.5W	20/15/10/5W	40/30/20/10W
Input Power	70V	10/7.5/5/2.5W	20/15/10/5W	40/30/20/10W
Impedance	100V	1k/1.3k/2k/4kΩ	500/660/1k/2kΩ	250/330/500/1kΩ
	70V	500/660/1k/2kΩ	250/330/500/1kΩ	125/160/250/500Ω
	LOW	-	-	-
Power Selection		By Wiring	By Wiring	By Wiring
Frequency Range(-20%)		112Hz~20kHz	100Hz~20kHz	97Hz~20kHz
Sensitivity (1W/1m, 1kHz)		92dB	95dB	98dB
Maximum SPL[Cont]		102dB	108dB	114dB
Input Power Maximum SPL		102dB/99dB	108dB/105dB	114dB/111dB
Nominal Dispersion(H)	1kHz	218°	217°	208°
Nominal Dispersion(H)	4kHz	158°	157°	76°
Input Connector		Bi-Wired INPUT Line Direct Connection
Enclosure Material		Body : AL/Top, Bottom : Composite PP(GP-3152F), INSERT NUT
Enclosure Color		Body : Light Brown/Top, Bottom : Black
Grill Material		EGI 0.8T	EGI 0.8T	EGI 0.8T
Grill Color		Titanium	Titanium	Titanium
Weight (Net)		1.8kg	3.0kg	4.6kg
Dimensions (Net, WxHxD, mm)		135 x 280 x 109	135 x 390 x 109	135 x 610 x 109
Weather Resistant		IP34	IP34	IP34
Flame Resistant		O	O	O
Certification		-	-	-
Included Accessories		U Bracket	U Bracket	U Bracket

17-09-26