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D 7LCR / D 7SUR / D 7SUB description

D 7LCR

D 7LCR is a 3-way speaker with two 5½"woofers, two
2½" midrange drivers and one 1"
tweeter, see more details about the driver units below.
The compact drivers improves the dynamics: As they
weigh less they can move faster. Of course under the
precondition that they are equipped with very
powerful motors (magnet/voice coil) as is the case here.
The two midrange drivers are placed vertically over /
under the tweeter and the woofers are placed on each
side of the midrange/tweeter array.
The crossover frequencies are 400 Hz and 2k Hz.
There are several advantages of these low crossover
frequencies when you, as in this case, have the drivers
to match them.
Every diaphragm has a break up point and it is
important that the driver is used in a range where
break ups are controllable or do not appear.
Of course the further away from the break up point the
better. In D 7LCR the crossover frequency for the
woofers is 400Hz and the diaphragm's break up point
occurs above 2k Hz. Therefore using a 2'nd order
crossover is fully applicable and phase errors that often
occur with higher order crossovers are avoided.
The two woofers in the D 7LCR are mounted horizontal
beside each other which at higher frequencies (over 2k
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Este manual también es adecuado para:

D 7lcrD 7surD 7sub