Upper And Lower Base Unit Speaker Removal - Bowers & Wilkins 804 D3 Technical Manual

Bowers & Wilkins TECHNICAL SUPPORT
Figure: 35
Once the 5" MF Cabinet Tube has been replaced (in reverse order) and following the
instruction in section 13 refit the Mid – Range Speaker in reverse order.
16. Upper & Lower Bass Unit Speakers Removal
To gain access to the Bass Unit Speakers start by putting your fingers against the
Rubber Surround Inner and your thumb on the Outer Aluminium Rim as shown in
Figure: 36. Now apply a small amount of pressure and pull outwardly.
Figure: 36
The Outer Aluminium Rim will come away as shown in Figure: 36, place this in a safe
place in preparation for reassembly. With the Outer Aluminium Rim removed it is
possible to see how it is secured in place as shown in Figure: 37. There are 8 x
Magnets in the Outer Aluminium Rim and 8 x Magents in the Bass Unite Speaker.
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Page 31 of 51
Acoustic Foam
Gasket
Replace Ty-Rap
Outer Aluminium Rim
Bass Unit
Rubber Surround Inner
Note: Aline the Gasket
before refitting the MF
Cabinet Tube.
Make sure that the
Acoustic Foam is still in
place, if not push it back
in place.
Fit a new ty-rap to hold
the Tweeter Cable
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