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ARC PORT
A loudspeaker’s internal standing wave resonance can impart a “thick” or “chesty”
character to the sound of voices. Polk Audio’s patented Acoustic Resonance Control
Port System is tuned to cancel this resonance for utterly clear, accurate and natural
midrange. See more about ARC Port at www .polkaudio.com/catalog/technology/.
polk
technology
WWW.POLKAUDIO.COM 5
CENTER LOUDSPEAKERS
1" silk/polymer composite dome tweeter for smoother
response and better detail. A neodymium magnet with
low-viscosity ferro-fluid cooling and a heat sink on the
back of the tweeter assembly, create better power
handling and reliability.
ARC (Acoustic Resonance Control) Port reduces
midrange “boom” for clear, natural midrange.
Magnetically shielded to allow safe placement next
to CRT televisions or video monitors.
Reversible design allows center channel to be “inverted”
to fire up at listening position.
Damped Asymmetric Hex Laminate Isolation (DAHLI)
Cabinet design for clean, accurate sound.
Finished in cherry or black oak real wood veneer.
Anti-diffraction grilles minimize grille diffraction
for spacious, 3 dimensional imaging.
CSiA6
The ultimate in RTi Center channel performance.
Dual PowerPorts reduce turbulence at the mouth of the port.
Dual 6.5" polymer composite Dynamic Balance mid/woofer
with rubber surround.
Cascade tapered array crossover minimizes interference
between the two mid/woofers in the upper midrange
to provide a wider sweet spot and greater accuracy.
Kickstand supports the rear part of the speaker on
the rear “slope” of projection TVs.
Dual 5-way binding posts allow bi-wiring and bi-amplification
and also accept a variety of wiring connectors.
Recommended amplifier power 20-200 Watts/channel.
OVERALLDIMENSIONS:
73/4" H X24" WX 14" D(19.68CM HX 60.96CMW X 35.56CMD)
OVERALLFREQUENCY RESPONSE: 45HZ- 27kHZ
SEESPECIFICATIONSFORMORE DETAILEDPRODUCTINFORMATION.
CHERRY BLACK OAK
CSiA4
Compact CSi center channel speaker.
Dual 5 1/4" polymer composite Dynamic Balance
mid/woofer with rubber surrounds.
Compact size fits in virtually any application.
5-way binding posts accept a variety of wiring
connectors and speaker cable up to 10 AWG.
Recommended amplifier power 20-180 watts/channel.
OVERALLDIMENSIONS:
67/8" H X20" WX 8 3/4"D (17.46CMH X50.80CM W X22.23CM D)
OVERALLFREQUENCY RESPONSE: 55Hz- 27kHz.
SEESPECIFICATIONSFORMORE DETAILEDPRODUCTINFORMATION.
CHERRY BLACK OAK
CS iA6
CS iA4