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5 Wiring and Setting Up
1. Open the wiring cover (if applicable) and locate
the Euro-type connector plug and socket at the
back of the speaker. (Fig.1)
2. For connection to an amplifier, use Pins 1 and 2
• Pin 1 is positive
• Pin 2 is negative
For connection to
additional speakers
in a distributed line,
Pins 3 and 4 are in
parallel where:
• Pin 3 is negative
• Pin 4 is positive
3. Close the wiring cover and tighten both screws
on the cable clamp (if applicable).
4. Use the rotary switch on the front of the
unit to select low impedance (LoZ) mode
or high impedance (70 V or 100 V) for
distributed applications.
The speaker is supplied in low impedance
mode. Never connect the speaker to a
70 / 100 Volt amplifier while it is set for
low impedance.
Tannoy operates a policy of continuous research and development. The introduction of new materials or
manufacturing methods will always equal or exceed the published specifications. All specifications are
subject to change without notice. Copyright (c) 2015 Music Group Innovation SC Ltd. All rights reserved.
CMS 503ICT models (all variants) use a 30 W
transformer. In distributed line applications, the
transformer can be tapped at 30 W, 15 W and
7.5 W, with an additional 3.75 W tap for 70 V
line systems.
CMS 603ICT models (all variants) use a 60 W
transformer. In distributed Line applications, the
transformer can be tapped at 60 W, 30 W and
15 W with an additional 7.5 W tap for 70 V
line systems.
6 CMS Series PI Dimensions
Please refer to the full CMS Series Operation
Fig.1
Manual for dimensional drawings.
CMS 503ICT PI
Hole cut-out: 190 mm
Diameter
Height
: 131.7 mm (5.19 ")
2
CMS 503 PI BACKCAN
Diameter: 288.0 mm (11.34")
Height: 153.5 mm (6.04")
CMS 603ICT PI
Hole cut-out: 253 mm
Diameter
Height
: 100 mm (3.94")
2
Fig.2
CMS 603 PI BACKCAN
Diameter: 351 mm (13.82")
Height: 168.5 mm (6.63")
Maximum, including bezel ring
1
Maximum to top of connector, from lower
2
ceiling surface
tannoypro.com
: 205.9 mm (8.11")
1
:274 mm (10.79")
1
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