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7 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
(Fig.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 403ICT models and 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.
8 CMS Series BM Dimensions
Fig.1
Please refer to the full CMS Series Operation
Manual for dimensional drawings.
CMS 403ICTe
Hole cut-out: 187 mm
Diameter
Height
CMS 503ICT BM
Hole cut-out: 190 mm
Diameter
Height
CMS 603ICT BM
Fig.2
Hole cut-out: 253 mm
Diameter
Height
Maximum, including bezel ring
1
Maximum to top of connector, from lower
2
ceiling surface
tannoypro.com
: 205 mm (8.07")
1
: 147.6 mm (5.81")
2
: 205.9 mm (8.11")
1
: 205.8 mm (8.10")
2
: 274 mm (10.79")
1
: 273.8 mm (10.78")
2
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