
TECHNOLOGY
C I - 6 . 0  V I I I    C I - 6 . 1  V I I I    C I - 6 . 2 s  V I I I    C I - 7.
Install instructions for CI round flush mounts models:
CI-6.0 VIII  CI-6.1 VIII  CI-6.2s VIII  CI-
2 VIII  CI-
3 VIII 
Thank you for purchasing Phase Technology CI custom 
installation speakers. This eighth generation of high performance ceiling mounted speakers features the same superb 
sonic performance as our acclaimed PC-Series cabinet 
speakers in addition to great flexibility and easy installation. 
The most striking change to the series VIII is a new look with 
the off-axis tweeter design. This feature maximizes the 
speaker’s clarity and imaging by creating an asymmetrical 
loading or diffraction pattern, reducing the amount of 
diffraction normally caused by a flange-to-ceiling junction. 
Universal flange & Grille
assembly (CI-FGR)
(purchase separatly)
Speaker/baffle 
assembly 
The net result is the best sonic realism you can buy in an 
in-ceiling speaker. All CI-Series speakers include self-resetting 
solid-state PTC protection circuits. This unique system is able to 
detect when the speaker is being over-driven and lowers the 
speaker volume until the problem is corrected. The PTC device 
then resets itself for normal operation. Other features include 
liquid-cooled tweeters for greater power handling, moistureresistant materials in all of the critical speaker components, 
galvanized steel speaker grilles and stainless steel hardware for 
improved corrosion resistance.
Flange clamp 
Screw (4x)
V- shaped index marks (4x) 
Tweeter adjustment
Grille
*The RB-17 rough-in bracket is available for installations in new construction.
Flange clamp (4x)
The CI-FGR will clamp 
material up to 1 
V- shaped index marks (4x) 
Baffle screw opening (4x)
1
/2” thick.
218-1224
6400 Youngerman Circle | Jacksonville, FL 32244  | (888)phase tk  | www.phasetech.com 

C I - 6 . 0  V I I I    C I - 6 . 1  V I I I    C I - 6 . 2 s  V I I I    C I - 7.
Install instructions for CI round flush mounts models:
CI-6.0 VIII  CI-6.1 VIII  CI-6.2s VIII  CI-
TECHNOLOGY
Flange Installation:
1. 
Choose the appropriate mounting 
location for each speaker.
NOTE – 
the following:
• Be certain your speaker wires can be run to or 
• Make certain the wall or ceiling material is 
• It is recommended that our pre-construction 
• Be certain the area behind the speaker is free 
• Each speaker should be positioned properly, 
• Audio performance and room-to-room isolation 
When deciding upon a location, consider 
are accessible from these locations.
sturdy enough to support the weight and 
vibration of the speakers.
rough in brackets (part number *RB-17) be used 
whenever possible in new construction.
of obstacles such as wall studs, electrical 
wiring, pipes, etc.
relative to the listening area for good coverage. 
will be improved if there is some fiberglass 
insulation placed loosely behind the speaker.
2 VIII  CI-
2. Using the supplied cutout template, 
carefully mark the area to be cut out. Using 
a drywall knife or saw, cut a hole in the 
drywall and prepare the speaker wires for 
connection to the speaker terminals.
3 VIII 
3. 
Remove the grille from the mounting 
flange by pressing it from behind. Insert the 
mounting flange into the hole. Loosen the 
flange clamping screws one turn (counter 
clockwise) to release the clamp. Next, 
tighten all four flange clamp screws evenly 
to secure the flange to the wall. It is best to 
tighten each screw with the same amount of 
force (torque).
 CAUTION: Do not over-tighten.
Speaker Installation:
4. Connect the speaker wires to the 
spring-loaded input terminals on the rear of 
the speaker, making sure no loose strands 
are exposed. If connecting the CI 6.2s 
see wiring options below.
+
     Red/positive    Black/negative
–
Carefully place the 
flange 
making certain that the four V-shaped 
index marks on the outer radius of the baffle 
and the inside radius of the flange line up. 
Attach the 
speaker/baffle
the four pre-installed 1” mounting screws on 
the baffle. 
CAUTION Do not over-tighten.
speaker/baffle 
 to the flange with 
5. 
Wiring options for the CI 6.2s 
Stereo 
FIG.1 – 8 ohms: Use this 
configuration to drive one channel 
(left or right) of a stereo pair. Set  
jumper plugs in the stereo position. 
Connect the right or left signal wire to 
the right set of terminals on the rear of 
the speaker.
FIG.1 FIG.2 FIG.3
Jumper Plugs
stereo position
Stereo Point Source FIG.2 – 8 ohms: 
Use this configuration to combine left 
and right channels for full fidelity sound 
from a single loud-speaker stereo source. 
Set jumper plugs in the stereo position. 
Connect right and left signal wires to the  
spring-loaded terminals on the rear of 
the speaker. 
Jumper Plugs
stereo position
Mono/Stereo 
this configuration to drive one channel 
(left or right) of a stereo pair with a 4 
ohm speaker load. Set jumper plugs in 
the mono position. Connect the right or 
left signal wire to the left set of posts 
on the rear of the speaker. Acoustic 
output of the speaker is increased by 
3 dB in the configuration.
in the 
6. Using some familiar source material, 
listen to the tweeter’s balance with the level 
control in each of its three positions to find 
your favorite.
7. 
the gap between the flange and the baffle. 
Enjoy your new Phase Technology speakers!
FIG.3 – 4 ohms: Use 
Jumper Plugs
mono position (Bi-pole/di-pole)
Carefully replace grille by pressing it into 
Bi-pole/Di-pole 
configuration for home theater surround 
applications. For bi-pole mode, connect  
as in the Mono/Stereo 
one speaker to each surround channel. 
For di-pole mode, connect speaker 
inputs the same as Mono/Stereo 
instructions 
connections of the marked tweeter wires 
to put one of the tweeters out of phase.
FIG.4
FIG.4 – 4 ohms: Use this 
 instructions (FIG.3): 
(FIG.3), but reverse the + and – 
Left Channel
6400 Youngerman Circle | Jacksonville, FL 32244  | (888)phase tk  | www.phasetech.com
Right ChannelRight Channel
Left Channel