Pioneer Elite S-IC691A Brochure & Specs page 6

cst: coherent source transducer.
the concentric solution.
The CST Uses Technology Developed From the TAD Reference One and EX Series Speakers.
T he CS T empl o y s a t w eeter, con -
c e n t r i c a l l y m o u n t e d a t t h e a p e x
o f t h e b a s s / mid r a n g e d r i v e r c o n e
t o m a i n t a i n s o n i c c o h e r e n c e a n d
seamless linearity. This configuration
ensures that sound propagates as if
coplanar
Coplanar: Separate Woofer and Tweeter
Acceptable sound is only achieved over a relatively small
area due to mismatched directivities and driver interference.
from a single point source, maximizing
i m a g e s t a b i l i t y a n d d r a m a t i c a l l y
reducing interference.
Directivit y is precisely control l ed
a t al l f r e quencie s, and dir e c t and
reflected sound arrives at the listener
pioneer cst technology
coaxial
Coaxial Driver: Concentric, Not Coherent
Improves upon coplanar designs, with a larger but still
limited listening area by eliminating driver interference.
w i t h m a t c h e d t i m b r e — e s p e c i a l l y
impor tant with in - ceil ing speakers,
where unwanted refl ections compro-
mise cl arit y and impact.
Listeners enjoy a wider sweet spot
t h a n w i t h p i v o t i n g c o p l a n a r a n d
coaxial
CS T: Cohe r e n t Sour ce Tr a nsd uce r
Matched directivit y and el imination of driver interfer-
ence results in sound as realistic off-axis as on-center.
co a x ial de sign s, w hil e t he C S T 's
c o n t r o l l e d d i s p e r s i o n i n c r e a s e s
f l e x ibilit y and instal l ation options.
Uniform delivery of sound means that
even off-axis positions can promise
the excitement of a front- row seat.
pioneer cst technology