Bowers & Wilkins CT 800 User manual

Technical Information
R
Date: September 30, 2005
Model: CT 800
Subject: Tweeter and Midrange Replacement Procedures
These instructions are intended to guide the technician in the replacement of the
tweeter or midrange drivers in the CT 800 series models.
•Gently lay the speaker down on its back so the midrange head assembly is
facing upwards.
•Remove the 4 allen screws from the front baffle of the speaker.
B&W LOUDSPEAKERS 54 CONCORD STREET NORTH READING,MA01864 PHONE:[phone] FAX:[phone]

9/30/2005 - Page 2
•Once all 4 allen screws have been removed from the front baffle, gently remove
the baffle from the speaker.
•With the baffle removed, the midrange/tweeter head assembly can be lifted
partially out of the cabinet and rotated to access the rear of the head assembly.

9/30/2005 - Page 3
•To replace the midrange driver, using a large flathead screwdriver or the
Midrange Torque Driver tool from the 800D series toolkit remove the large silver
screw from the rear of the head assembly. Be careful when removing this to
ensure the midrange driver does not fall out of the head assembly as this screw
attaches directly to the rear of the midrange driver basket. When the midrange
driver has been removed, the new drive unit can be installed and reassembled
following these directions in reverse. Polarity for the midrange driver
connections is Brown positive, Blue negative.
•To replace the tweeter assembly, remove the large silver midrange screw as
noted in the previous step, and also remove the 4 allen screws located on the
back of the midrange head assembly.
•Once all 4 allen screws and the silver midrange screw have been removed, the
midrange head assembly can be gently pulled apart.

9/30/2005 - Page 4
•From the back of the tweeter assembly, disconnect the molex connector from
the tweeter assembly, and remove the 2 wing nuts on either side of the tweeter
cover.

9/30/2005 - Page 5
•Remove the tweeter assembly cover, and disconnect the leads to the tweeter
assembly and remove. Replace with the new tweeter, and follow the
instructions in reverse to reassemble the speaker.
If you have any questions, please contact technical support.
B & W Loudspeakers
54 Concord Street
North Reading, MA 01864-2699
[phone]