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SI20R/SZI30R
SZI 30 RA
Polar pattern of the SI 20-R/SZI 20
Coverage area of the SI 20-R / SZI 20
Four SZI 20, mounted at an angle of 60° to one
another. For comparison purposes, the coverage
of a single SZI 30 is shown at 30°.
Supplied Accessories
1 power cord for 110V AC outlet
1 SZI 30 RA remote adapter and (2) pre H connectors for SZI 30
Required Components
Mounting clamp
(one required for each SI30 and SZI30)
Coax cable with twisted pair (Belden 8734)
to connect SI20-R to SZI30-R, 6"
Optional Accessories
Mounting hardware for clusters
of 2 to 4 SI30 and SZI30
Wall/ceiling mount, 5/8" thread
Adapter, 5/8" to 3/8", for mounting
a single SI30 or SZI30
Omni-directional ball joint wall mount & flange
Floor stand
Compatible Accessories
Single channel stethophone receiver, 95kHz
Single channel stethophone receiver, 250kHz
Two channel stethophone receiver
Two channel stethophone receiver with squelch HDI92-P
Charger and power supply for 10 batteries
Charger and power supply for 20 batteries
Charger and carrying case for 20 batteries
Spare rechargeable batteries
Latex replacement ear cushions
Foam replacement ear cushions
Architect's Specifications
The unit shall be a 2-Channel IR modulator & remote filter with 12 diodes. The carrier
frequencies shall be 95 and 250 kHz. The frequencies must be switchable. The coverage area
shall be 750 sq. ft. in mono mode, and 375 sq. ft. in stereo mode. The input sensitivity shall be
40 mV with automatic gain control. The power requirements shall be 110 V AC. The input
connectors shall be 1/4" unbalanced line level connectors.The output connectors shall be
5-pin and lockable. The dimensions shall be 9 x 1.75 x 8 inches and weigh approx 5.5 lbs. The
unit shall be a Sennheiser SI 20-R/SZI 20R.
Sennheiser Electronic Corporation, 1 Enterprise Drive, Old Lyme, CT 06371
Telephone: 860-434-9190 • Fax: 860-434-1759 • Web: http://www.sennheiserusa.com
Sennheiser Mexico: Av. Xola 613, PH6, Col. Del Valle 03100, Mexico, DF. Telephone: (525) 639-0956. Fax: (525) 639-9482
Sennheiser Canada: 221 Labrosse Ave, Pte-Claire, PQ H9R 1A3. Telephone: 514-426-3013. Fax: 514-426-3953
Manufacturing Plant: Am Labor 1, 30900 Wedemark, Germany
IZK20
ICC 20-R
IZM 20
WM1
MZA216
GZG1029 & GZP10
SEMS3000
RI100-A/RI100-J
HDI91-P2
H200
L92-10 and NT92-120
L92-20 and NT92-120
HC101
BA90 NiMH
EP405L
EP405F
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