Master
Master™ C
System range
Size, mm
600x600
Concealed •
Direct •
Glued •
Thickness 40
M57 M111 M95
System and product description
Suitable for schools, open plan offices or other premises where strict demands are made on good acoustics and speech intelligibility. Ecophon Master C is installed in a suspended grid system or directly to the soffit, creating a ceiling with a smooth appearance. The bevelled edges create a narrow groove between each tile. The tiles are not demountable.

The systems consist of Ecophon Master C tiles and Ecophon Connect grid systems, with an approximate weight of 5,5 kg/m². The tiles are manufactured from high density glass wool. The visible surface is available with three different surface coatings to meet different sound absorption needs: alpha, beta and gamma. The back of the tile is covered with glass tissue. The edges are painted. The grid is manufactured from galvanized steel.
Acoustics
Acoustic:
product Master C/alpha Master C/beta Master C/gamma
o.d.s mm 40 200 40 200 40 200
absorption class A A C C E E
Sound Absorption: Test results according to EN ISO 354.
Classification according to EN ISO 11654, and the single value ratings for NRC and SAA according to ASTM C 423.
Sound Insulation: Dn,c,w=31 dB according to ISO 140-9 and evaluation according to EN ISO 717-1. CAC=33 dB according to ASTM E 1414 and evaluation according to ASTM E 413
Sound Privacy: AC(1.5)=200 /alpha according to ASTM E 1111 and E 1110. /beta and /gamma are not suitable.
αp Practical sound absorption coefficient
Master_C_abs1 Frequency Hz
— Ecophon Master C/alpha 200 mm o.d.s.
···· Ecophon Master C/beta 200 mm o.d.s.
--- Ecophon Master C/gamma 200 mm o.d.s.
o.d.s = overall depth of system
αp Practical sound absorption coefficient
Master_C_abs2 Frequency Hz
— Ecophon Master C/alpha 40 mm o.d.s.
···· Ecophon Master C/beta 40 mm o.d.s.
--- Ecophon Master C/gamma 40 mm o.d.s.
o.d.s = overall depth of system
Technical info
Accessibility: The tiles are not demountable.
Cleanability: Daily dusting and vacuum cleaning. Weekly wet wiping.
Visual appearance: White Frost, nearest NCS colour sample S 0500-N, 85% light reflectance (of which more than 99% is diffuse reflection). Retro reflection coefficient 63 mcd*m-2lx-1. Gloss < 1.
Influence of climate: The tiles withstand a permanent ambient RH up to 95% at 30°C without sagging, warping or delaminating (ISO 4611).
Indoor Climate: Certified by the Indoor Climate Labelling, recommended by the Swedish Asthma and Allergy Association, and can be used in rooms classified as ISO class 6/M3.5.
Environmental influence: Granted the Nordic Swan eco-label. Fully recyclable.
Fire safety: The glass wool core of the tiles is tested and classified as non-combustible according to EN ISO 1182. The systems are classified as fire protective covering according to NT FIRE 003 when installed according to M57 or M111. See Technical properties, Fire safety.
Country Class Standard
Europe EN 13501-1 A2-s1,d0
Mechanical properties: For information regarding live load and requirements for load bearing capacity, see installation diagrams. Conditions: See Functional demands, Mechanical properties.
Installation: Installed according to system range.
For Acousticians
"Acoustical evaluation of rooms requires several room acoustic descriptors. Reverberation time alone is not enough!" Erling Nilsson / Acoustics Specialist Ecophon
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