Wiring And Setting Up; Cms Series Model Dimensions - Tannoy CMS 3.0 Series Quick Start Manual

16 CMS 3.0 Series

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 amplifi er, 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.
CMS 403DCe/ICTe and CMS 503DC/ICT 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. (Fig.3)
CMS 603DC/ICT and CMS 803DC 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. (Fig.4)

CMS Series Model Dimensions

CMS 803DC BM
Hole Cut-out Size: 295 mm
310.5
[12.22"]
Fig.1
5.2
[0.20"]
319.0
[12.56"]
Fig.2
CMS 803DC PI
Hole Cut-out Size: 295 mm
5.2
[0.20"]
Fig.3
319.0
[12.56"]
Fig.4
327.7
[12.90"]
286.4
[11.27"]
125.6
[4.94"]
286.4
[11.27"]
Quick Start Guide 17