12
3 NEW LINES OF INNOVATIVE DRIVERS
THE BASS WOOFER (continued)
The 4-layer voice coil provides a linear displacement of ± 7mm.
The LHSTM 2 system, the same that is used in the midrange,
is also used on the T21GM order to increase heat handling
capacity. This system consists of a heat sink ring in contact
with the back of the yoke – the heat conduction ring. This ring
collects heat dissipated from the core and the yoke and brings
it to a finned cover.
We estimate the resulting increase in power handling capacity
to exceed 200 W RMS per subwoofer.
Without an effective heat dissipation system, there is a serious risk of thermal runaway and such an unwanted
rise in temperature could considerably affect the driver parameters ( see Graph A below)
THE BASKET
Research and the development of T21GM basket were undertaken to vastly
improve mechanical qualities in terms of both rigidity and damping. The basket’s
unique design allows for a maximum clearance of the radiating rear surface of the
diaphragm. Its side vents improve the damping of the voice coil. The T16GM F100
and T21GM models are also equipped with specific connector blocks that were
designed in order to ensure that the cables coming from the filter are uniformly
clamped.
THE CONNECTOR BLOCK
The connector blocks unique to theT16GM F100 and T21GM models underwent
a thorough re-design process in order to ensure that the cables coming from the
filter are uniformly clamped and have excellent mechanical contact.
LHS 2
The measurements below are for a 21-cm loudspeaker designed and manufactured
by TRIANGLE industries. The temperature of the driver motor is measured first
without the LHSTM2 system, and a second measurement is taken with the LHSTM
2. We recorded a difference of 20° on average over 120 minutes, with a pink noise
registered at 100 watts and filtered with high pass at 80Hz.
Time in minutes
0
30
60
120
Temperature without LHS 2
20
45
50
54
Temperature with LHS 2
20
25
30
34
Temperature Difference in °C
0
20
20
30
GENERAL DESCRIPTION
Summary of Contents for MAGELLAN CELLO
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