The Tannoy CMS601 DC is a full bandwidth; high power and high sensitivity ceiling monitor
system. The 165mm (6.50″) Tannoy Dual ConcentricTM is a point source drive unit design
comprising a multi fibre paper pulp mid bass cone and a 25mm (1.00″) ferrofluid cooled, titanium
dome HF unit with neodymium magnet system. The driver and passive frequency dividing
network are mounted in a vented, injection moulded, paintable front baffle manufactured from
UV/weather resistant UL94V-0 ABS material.
The mid-bass and tweeter sections of the Tannoy Dual ConcentricTM constant directivity driver
are coincidentally aligned to a true point source; ensuring a wide and controlled dispersion for
optimum coverage; this while avoiding the massive loss of energy in the vertical plane, at the
crossover frequency, inherent in two-way discreet designs. This high power and high sensitivity
design, with extended frequency response and very low distortion, is equipped with dynamic high
frequency protection.
This compact unit is specifically designed for applications requiring the combination of premium
sonic quality for music and speech reinforcement and exceptional reliability and intelligibility.
The CMS601 DC BM is equipped with a low insertion loss 60W line transformer easily
configurable to the following settings via front baffle mounted rotary tapping switch:
70V systems: 60W / 30W / 15W / 7.5W / OFF & low Impedance operation
100V systems: 60W / 30W / 15W / OFF & low Impedance operation
The CMS601 DC PI is supplied without a transformer. The 60W line transformer is available as
an optional accessory pack (7600 1658) for easy connection to the control switch circuit if the
product is to be used without a back can.
The recommended option for optimum performance and compliance with safety ratings is to use
the CMS601 PI Back Can (8001 4520) in which the transformer is pre-fitted.
Two CMS601 DC model versions and a separate back can are available to satisfy the vast
majority of installation application requirements:
CMS601 DC BM (Blind Mount) – supplied with an integral back can.
CMS601 DC PI (Pre-Install) – supplied without a back can.
CMS601 PI Back Can (Pre-wire back can) – use with the CMS601 DC PI.
The zinc plated steel back cans have an integrated, recessed termination box. The removable
locking connector has screw terminals for secure wire termination and “loop through” facility.
Strain relief is provided by a clamping mechanism for use with plenum rated cable or conduit.
Spring loaded self-aligning clamps make for quick and easy installation, while all models are also
supplied with two tile support rails and one C-ring included in the package.
A plaster (mud) ring is available as an optional accessory

Tannoy CMS601DC