EAW NL8, AP6, KF850z User Manual
Instructions/Installing the KF850z
NL8 and AP6 Upgrade Kits
The KF850z AP6 Upgrade Kit P/N 0006241 and the KF850z NL8 Upgrade Kit P/N 0006242 are available for the
KF850e loudspeaker. These two kits are the same but for the Electrical Assemblies.
Warning: Installation should only be done by an experienced technician. Improper installation may result
in damage to the equipment, injury or death.
1. Inventory the kit against the following bill of materials insuring the kit is complete.
EAW P/N Qty Description
804116 1 Driver-Cone (LC-1536)
102021 4 Screw 1/4-20 X 1-1/2 LG SHCS Blk
0005848 1 Horn/URE/H4532
0008726 1 Driver/Compression [DN20/3004-8]
102165 4 Screw/M6 X 14mm LG HHCS
105005 4 Washer/Flat 1/4
105004 8 Washer/Lock 1/4
0006004 2 Bracket/Horn [KF850z Upgrade Kit]
102016 6 Screw 1/4-20 X 1 LG PH PHMS Blk
105007 10 Washer/Flat 1/4 Blk
105008 10 Washer/Lock 1/4 Blk
102017 4 Screw 1/4-20 X1 SHCS Blk
804097 1 Driver-Cone [LC-1075]
0006008 1 Assembly/Phase Plug/Housing
0006005 1 Ring/Aperture/Wood/10” Mid [KF850z]
0006007 4 Screw 1/4-20 X 4-1/2 LG SHCS Blk
105033 4 Washer/Flat/M6
0006011 1 Instruction/Kit/KF850z/Upgrade
102087 4 Screw #8 X 1 LG PH PHSMS
102048 8 Screw #10 X 16 X 3/4 PH PHSMS
102102 23 Screw #8 X 5/8 PH PHSMS Blk
0006239 1 Electrical Assembly KF850z [NL8]
or
0006240 1 Electrical Assembly KF850z [AP6]
2. Overview
KF850z Kit installation requires the technician to remove and replace all transducer components. The HF
horn assembly is accessed from the front and the 15” woofer, 10” mid range, and electrical assembly from
the back.
To do this the enclosure will first be rested on its back, the grille
removed, and the HF horn assembly disconnected, removed, and disassembled. Its rear bracket will be re-installed into the new KF850z
HF horn assembly, which will then be installed into the enclosure.
After this is complete the enclosure should be repositioned onto its
front, and the 2 access lids, polyfill, input and crossover removed, the
new crossover installed, and its leads routed to the appropriate chambers. Then the new 15” woofer and the new mid assembly will be
installed. The old polyfill should be restapled into both chambers and
the new electrical assembly installed.
Finally the enclosure will be stood upright, HF leads connected, tested for continuity, and access lids and grille reinstalled.
3. Instructions: Tip the enclosure on its back and remove the 23
Phillips head screws that mount the grille to the enclosure.
S
REMOVE AND DISCARD
23 #8 X 5/8 LG PHILLIPS
HEAD SHEET METAL SCREW
10X GRILL
FOAM RETAINERS
(DO NOT REMOVE)
T
Y
6
)
)
5. Removing the High Frequency Assembly
a. Disconnect the two leads.
b. Remove and discard the 2 Phillips head screws, lock
and flat washers that hold the back bracket to the enclosure.
c. Remove and discard the 4 socket head cap screws, lock
and flat washers that attach the front metal bracket to
the enclosure.
d. Lift the HF assembly from the enclosure.
4. Removing the Pillow and Wave Guide
The pillow is beneath the HF horn assembly and held to
the side walls of the enclosure by hook-and-loop tape.
Tug the sides of the pillow free and lift it out.
The waveguide/grille is attached by 4 Phillips head screws.
Remove the screws and remove the waveguide.
The pillow and waveguide will not be reused.
6. Dissassembling the High Frequency Assembly
a. Remove the 4 M6 nuts, lock and flat washers.
b. Separate the driver from the horn and remove the rear bracket. DO NOT
remove the 2 Phillips head screws that hold the two halves of the rear
bracket together.
c. The HF assembly may be discarded except for the rear bracket.
7. Building up the new the High Frequency Assembly
a. Assemble the driver and rear bracket to the round horn
flange using the 4 M6 bolts, lock and flat washers.
b. Attach the 2 brackets to the front horn flange as shown
using 4 black 1/4-20 x 1 lg Phillips head screws, 4 black
lock washers and 4 black flat washers.
8. Attaching the new the High Frequency Assembly to the Enclosure
a. Place the new HF assembly into the enclosure aligning the 4 slots in the front bracket and the 2 slots in the rear
bracket with the threaded holes in the HF chamber. Attach the front bracket to the enclosure with 4 black 1/4-20
x 1 lg socket head cap screws, lock and flat washers. Use 2 black 1/4-20 x 1 lg Phillips head screws, lock and flat
washers to attach the rear bracket to the enclosure. The 2 elecrical leads are attached in Step 12b.
4X PHILLIPS HEAD SCREWS
(REMOVE AND DISCARD)
PILLOW (REMOVE AND DISCARD
HIGH FREQUENCY
HORN ASSEMBLY
4X SOCKET HEAD CAP SCREWS
LOCK AND FLAT WASHERS
(REMOVE & DISCARD)
2X PHILLIPS HEAD
SCREWS LOCK
AND FLAT WASHERS
(REMOVE AND
DISCARD)
DISCONNECT
HIGH FREQUENCY
HORN ASSEMBLY
RED AND BLACK
WIRE ELECTRICAL LEADS
4X NEW 1/4-20
X 1" LG BLACK
SOCKET HEAD
CAP SCREWS,
LOCK AND
FLAT WASHERS
2X NEW HORN BRACKET
P/N 0006004
REUSED REAR BRACKE
NEW H4532
HORN P/N 0005848
NEW HIGH FREQUENC
DRIVER P/N 000872
4X NEW 6mm HEX HEAD
SCREWS, LOCKWASHER & FLAT
WASHER (USING 10mm WRENCH
WAVE GUIDE (REMOVE AND DISCARD)
REAR BRACKET
REMOVE NUTS, LOCK
WASHER & FLAT WASHER
USING 10mm WRENCH
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