Quick Start Guide

12 CMS 1201DC T/1201DC Quick Start Guide 13
Wiring and Setting Up
The CMS 1201 is available in both a standard low-impedance variant (CMS 1201DC) and a low insertion loss 60 W line transformer-equipped version (CMS 1201DCt) for
use on 70 V or 100 V distributed lines. The following tappings are congurable on the transformer befoe screwing driver assembly into the back can:
70 V systems: 60 W / 30 W / 15 W / 7.5 W / OFF
100 V systems: 60 W / 30 W / 15 W / OFF
If later adjustment to the level is required the bae can be hung fom the can via a hinged edge, leaving both hands free to make the required adjustment.
Tannoy’s focus on maintaining the highest standards of continuous product performance and reliability, through uncompromising quality control of components and
manufacturing processes, means you can specify and install CMS 1201DC with condence
Dimensions
100.0
[3.94"]
588.2
[23.16"]
302.6
[11.91"]
315.0
[12.40"]
24.6
[0.97"]
100.0
[3.94"]
457.0
[17.99"]
725.0
[28.54"]
516.0
[20.31"]
15.3
[0.60"]
60.0
[2.36"]
432.0
[17.01"]
432.0
[17.01"]
Technical Specications
Performance
Frequency response (-3 dB) 60 Hz - 20 kHz
Frequency range (-10 dB) 45 Hz - 30 kHz
System Sensitivity (1W @ 1m) 97 dB (1 W = 2.83 V for 8 Ohms)
Nominal Coverage Angle 90 Degrees Conical
Coverage Angle (1 kHz to 16 kHz) 90 Degrees Conical
Crossover 1.6 kHz - 2nd order LF, 2nd order HF
Directivity Factor (Q) 8.9
Directivity Index (DI) 9.5
Rated maximum SPL
Average 120 dB
Peak 126 dB
With THP 60 - Average 115 dB
Power Handling
Average 200 W
Programme 400 W
Peak 800 W
Recommended Amplier Power 400 W @ 8 Ohms
Nominal Impedance 8 Ohms
Transformer Taps (CMS 1201DCt only)
70 V 60 W / 30 W / 15 W / 7.5 W / OFF
100 V 60 W / 30 W / 15 W / OFF
Transducers
Low Frequency 1 x 300 mm (12.00") Dual Concentric™ constant directivity driver with treated cone
High Frequency 34 mm (1.34") aluminium done with neodymium magnet system
Physical
Enclosure
Backcan 1.6 mm black powder coated steel, damped with 11 mm OSB board
Bae 1.2 mm black powder coated steel
Grille 1.0 mm white powder coated perforated steel
Connectors Terminal barrier strip inside the can, with loop thru capability
Safety Features Safety ring located at the rear of enclosure for load bearing safety bond
Cable Entry Options 20 mm and 28 mm on knockouts
Conduit Knockouts 4 sides + top
Dimensions (H x W x D) 331 x 725 x 516 mm (13.0 x 28.5 x 20.3")
Net Weight
Backcan 21.4 kg (47.1 lbs)
Bae
1201DC 6.8 kg (15.0 lbs)
1201DCt 7.9 kg (17.4 lbs)
Grille 1.0 kg (2.2 lbs)
Notes:
1. Average over stated bandwidth. Measured in an IEC baffle in an Anechoic Chamber
2. Unweighted pink noise input, measured at 1 metre on axis
3. Long term power handling capacity as defined in EIA - 426B test
A full range of measurements, performance data, CLF and Ease™ Data for CMS 1201DC can be downloaded from tannoypro.com.