Pioneer TAD-R1 - Manual (Page 6)

6
TAD Reference One Owner’s Manual
Bass Drivers
The foundation of the TAD Reference One
loudspeaker is the bass drivers, as shown in Figure 3.
The driver cones are constructed from a tri-laminate of
front and rear-woven aramid fibers that sandwich a
foamed acrylic core. This provides enormous strength
to the cone in order to resist any flexing due to the
high forces exerted during loud bass passages.
To achieve high drive linearity, the motor structure
employs short coil and long gap geometry, Faraday
shorting rings, and a novel flux path for even lower
distortion. Combined with advanced spider and
multi-roll surround design, the bass driver has over 30
mm (1.25 in.) of linear drive capability, as shown in
Figure 4.
Figure 3. The TAD Reference One’s Bass Drivers.
16
14
12
10
8
6
4
2
0
0 10 20 30 40 50
BL
E xcursion (mm)
Figure 4. BL versus excursion for the TAD Reference One’s bass driver.
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