Wiring And Setting Up - Tannoy CMS 3.0 Series Quick Start Manual

20
CMS 3.0 Series
5. Go to the 'Wiring and Setting Up' chapter, then return to point 6 below.
6. Slide the speaker assembly through the hole. Turn the screws (denoted "Screw Fix") clockwise on the front of
the speaker to extend the mounting wings. Tighten the screws until a firm grip is achieved. (NOTE: Screws have
a PoziDriv head; use of a PoziDriv driver is recommended). If using a power driver, Tannoy recommends a torque
setting of 1.5 Nm. (Fig.8)
DO NOT OVERTIGHTEN!
7. Attach the nylon safety to the hooks on the front baffle before attaching the grille by presenting it to the speakers
and allowing the magnets to pull it into position. (Fig.9)

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
Fig.8
• 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.
Fig.9
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)
21
Quick Start Guide
Fig.1
Fig.2
Fig.3
Fig.4