Owner's Manual
Table Of Contents
- Installation Manual
- Table of Contents
- 1 Safety
- 2 Welcome
- 3 System overview
- 4 Installation and Wiring
- 4.1 Step 1 — Cut the Hole
- 4.2 Step 2 — Install C-Ring and/or Tile Rails
- 4.3 Step 3 — Attach Wiring to the Terminal Connector
- 4.4 Step 4 — Secure the Cable to the Speaker
- 4.5 Step 5 — Mount the Speaker into the Ceiling
- 4.6 Step 6 — Connect an Auxiliary Support Line
- 4.7 Step 7 — Adjust Tap Selector
- 4.8 Step 8 — Attach the Grille
- 5 Troubleshooting
- 6 Technical data
- 7 Appendices
- Product Info
- Warranty
- Safety Notes
26 en | Appendices EVID Ceiling Speaker Systems
2018.09 | 11 | F.01U.177.705 Installation manual Electro-Voice
Ceiling
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Figure7.3: Size vs coverage
Of course, the C4.2 is somewhat less sensitive than the 8-inch C8.2. The difference is - 5 dB.
The C4.2 will also have slightly reduced low-frequency capabilities below 65 Hz. However,
neither of these factors is a significant problem in many distributed systems. The C4.2 is
conservatively rated to handle 80 watts of continuous power equal to or greater than most
other brands of 8-inch units, so its continuous SPL output will be more than adequate.
Moreover, its low-frequency output can easily be augmented with the addition of the C10.1
subwoofer. For these reasons, the C4.2 represents a great way for you to provide good audio
coverage while maintaining a competitive edge in price quotes in installations that do not
need the extended performance of the larger models.
Reverberant Rooms and High Ceilings
Situations arise, however, in which controlled coverage is more desirable than broad
dispersion. Very large live spaces such as gymnasiums, convention centers, shopping mall
atriums, and the like all benefit from more controlled sound projection. In such installations,
the EVID C8.2HC is the best choice. Its 75-degree coverage pattern above 1 kHz provides more
intelligibility in large, acoustically live spaces. It also has a high 93 dB sensitivity rating for
optimum efficiency.
SPL Requirements: How Loud?
The EVID C8.2 is a great speaker to use when higher SPL is required. The fidelity and
bandwidth of the unit is substantial and is ideal for applications requiring high quality
foreground music reproduction. The C8.2 has substantial low frequency energy down below
60 Hz. This is more than sufficient for most applications.
Layout: How Many?
The Coverage Diameter by Ceiling Height chart shows the effective coverage diameter of the
EVID models assuming a 4-foot listening plane height. Using these figures you can lay out a
coverage pattern for the job after deciding the overlap criteria.
Model 8' 12' 20' 24'
C4.2 17' 34' 68' 85'
C4.2LP 17' 34' 68' 85'
C6.2 14.25' 28.5' 56.5' 71'