Read JBL DD66000 Service Manual online
5.5 Ohms @ 85Hz
3.5 Ohms @ 40kHz
32Hz – 50kHz (–10dB)
700Hz (LF2 24dB/Octave)
20kHz (UHF 24dB/Octave)
proper system headroom to allow for occasional peaks. We do not
recommend sustained operation at these maximum power levels.
Discontinued Date XXXX
Remove the front grille; Grille removal is described in the owner’s manual.
All controls, and replacement of the 9 volt batteries, are under the
cover at the center bottom of the front baffle.
(see exploded view) but none are physically attached or accessed
through the terminal cup at the rear. Woofer removal is necessary.
machine screws all have at nut on the end, inside the cabinet, so at
least one woofer removal is necessary to hold the nuts and prevent
each screw from spinning.
pushing the UHF housing (port) #25 up vertically with your thumbs, as
it’s held in place with a pin/cup arrangement. All UHF driver compo-
nents will then be exposed.
woofer opening, following these steps.
pull upwards, lifting the woofer from the counterbore. Then while
one person supports the woofer, another can remove both con-
necting wires from the terminals. Set the woofer(s) aside; do not
set it on the front baffle as it may damage the leather cover.
and can be removed by loosening, not removing the (2) wing nuts
#37 (knobs) and dislodging the slotted plate & driver from its posi-
tion. Then the HF driver can be unbolted from the plate and the
after woofer removal the front baffle can be extracted by the removal
of (8) hex bolts at the rear of the baffle; these are not shown in the
exploded view. Work the front baffle out of the cabinet. The leather
cover is glued and stapled to the front baffle. The leather cover is not
available from JBL as a separate part, and a suitable upholstery shop
will need to remove and re-cover the front baffle with a material of
your choice. The leather is described as 0.050” Waterproof Leather
Hide, color Black for all finishes except the white version of the
DD66000, and that leather color is Cashmere.
is replaced only into its proper hole (#39 in exploded view)