Polk CSi A4 Centre Speaker

R5,250.00

Prices are applicable to stock on hand only. Please confirm stock availability and prices before ordering.


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Description

The High Performance Heart of Home Theatre

The CSiA4 is a high performance centre channel speaker for smaller rooms and challenging placement situations. It features two 5 1/4-inch Dynamic Balance® drivers, one 1-inch Dynamic Balance dome tweeter for spot-on imaging, seamless soundstage and natural sounding voices. With the asymmetric cabinet design, you gain the flexibility to placing the CSiA4 above or below the TV and aim it at your position.

Key Features

  • The proprietary curved enclosure design creates the optimal shear damping for a more rigid, acoustically inert enclosure and minimal cabinet resonances. CSiA4 cabinets are designed for clean, accurate sound.
  • Klippel motor optimization uses laser measurement technology to ensure a smooth excursion path at either end of the volume spectrum for uniform performance at both low and high volumes.
  • Polk’s proprietary, patented Dynamic Balance technology allows our engineers to design out distortion-causing driver and system resonances, so you only hear the good sounds.
  • Durable, computer-modelled, injection-moulded butyl rubber surrounds suppress unwanted cone resonances for a lifetime of reliable sound.
  • The RTiA Cascade Tapered Crossover eliminates the comb filtering and beaming, common to multi-driver speakers, which degrades the quality of the audio and collapses the soundstage.
  • Patented Acoustic Resonance Control® (ARC) technology suppresses cabinet resonance that causes distortion to ensure clear and natural sound.
  • Beautiful curved furniture-grade hardwood veneer cabinet finishes, with sleek trim accents in black or cherry.
  • Computer-modelled anti-diffraction grilles enhance the good looks whilst minimising sonic interference.
  • All Polk loudspeakers are timbre-matched within their series, designed with the same components throughout, to achieve seamless speaker-to-speaker blending effects in multi-channel systems.
  • Gold-plated, professional-style 5-way binding posts, for the most secure connection options.

CENTRE CHANNEL
Orientation: Horizontal
Height: 6.875″ (17.46 cm)
Width: 20″ (50.8 cm)
Depth: 8.75″ (22.23 cm)
Weight: 15.5 lbs (7.03 kg)
Front Array Driver Complement:
(2) 5.25″ (13.34 cm) d (Round) Dynamic Balance drivers with polymer composite cones and rubber surrounds – Midrange
(1) 1″ (2.54 cm) d (Round) Dynamic Balance silk polymer dome – Tweeter

AUDIO QUALITY
Total Frequency Response: 55 Hz → 27,000 Hz
Nominal Impedance: 8 ohms
Sensitivity (1 watt @ 1 metre): 89 dB
Lower and Upper -3dB Limits: 65 Hz → 26,000 Hz

EXTERNAL AMPLIFIER
Recommended Amplifier Power Per Channel: 20 watts → 180 watts

INPUTS
Speaker Inputs: (1) Pair of 5-way Binding Posts – Gold-Plated

WARRANTY
Cabinet Warranty: 5 years
Drivers Warranty: 5 years
Original Purchaser Only: Yes

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