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In cases of very high levels of high frequency information (such as feedback
from facing the cabinet with your instrument turned up), the bulb can glow
brightly enough to illuminate the interior of the cabinet and shine through
the speaker surrounds. While this is a rather dramatic display of the
protection circuit, it should not be done intentionally. It’s much better to find
another way to impress your drummer!
Excessive amounts of current will cause the bulb to act like a fuse and fail,
requiring replacement before the tweeter will function. Replacement bulbs
are available from our factory. In an emergency, an automobile dome light
bulb can be used to restore the system. To replace the bulb, simply remove
the screws that secure the connection plate to the back of the cabinet. Gently
pull the plate out and replace the bulb in its connection clips.
BREAK-IN PERIOD
We recommend that you use your D Series cabinet at low to moderate
volume levels for approximately ten hours before using it in a high volume
situation. This will allow the suspension components to “seat” themselves
and the speaker to break in. This is very similar in concept to breaking in the
engine of a new car. It will actually take about 24 to 50 hours of total
playing time to fully break in your speaker system. If desired, you can plug a
CD player into your amplifier and play a CD through your enclosure to
accomplish this break-in.
CONNECTIONS WITH ADDITIONAL CABINETS
It is important to keep two issues in mind when connecting your David
Series cabinet with other cabinets: phase relationships and impedance.
Proper parallel connections require the positive and negative speaker
terminals to maintain their relationships throughout the system. This means
that the positive connection (tip on _ in. plugs; the red binding post) on one
cabinet must connect to the positive connection on additional cabinets. The
negative connections should be made in a similar manner. Unless you have
defective cables, _ in. connections make incorrect connections highly
unlikely. If you are using NL4 plugs to connect there should also be not
problem with phase relationships. If you wish to connect multiple cabinets in
SERIES, you will need to use special single wire cables with individual
banana plugs, attaching them to the cabinets as shown below. (You can
purchase _-banana adapters for this purpose, if necessary.)
