POLK AUDIO LSiM704 C CENTER ΗΧΕΙΟ BOOKSHELF 2 ΔΡΟΜΩΝ -EBONY-

Tweeter 1¨Dynamic Balance Ring Radiator x1
Mid/Woofer 5 ¼ ¨ Dynamic Balance x2
Frequency Response 40Hz - 27kHz
Nominal Impedance 4 Ohms
Rec. Amplifier Power 20-200 W/Channel
Sensitivity 88dB
Dimensions (cm) 17.78x 55.24 x 22.86

Optimum surround sound home theater reproduction places heavy demands on the center channel speaker, which in many respects is the main speaker in the system and often handles 50% or more of the program material. Itʼs no place to compromise and settle for second best. All Definitive CS series center channel models are designed with the same rigid standards and high performance goals as main left and right front speakers and feature wide frequency response and extended dynamic range with extraordinary detail and articulation.

Bass Radiator Technology Makes a Dramatic Audible Difference
Most audio experts agree that the ideal surround speaker system would have 5 identical truly full range speakers at every position. But most rooms and setups canʼt accommodate 5 identical large speakers. So we engineered the next best thing – a center speaker with robust bass response that fits on a shelf.

The CS-8040HDʼs bass radiator gives you full, rich center channel sound
The CS-8040HD features two patented high-definition Balanced Double Surround System (BDSS) 4-1/2 inch drivers that are pressure-coupled to a 5 x 10 inch racetrack-shaped planar Low-Bass Radiator. The result is bass extension unheard of in a center speaker of this size and price. With the CS-8040HD you will fully realize the performance potential of the center channel program material as the movie director intended it to be heard.

Its upward-firing bass radiator requires only 1" (25mm) of clearance, so it works perfectly whether you mount it in free-air or put it in a cabinet.

Dimensions :5-3/4" H x 21-1/8" W x 12" D | 14.5cm H x 53.7cm W x 30.4cm D
Driver complement :2 each 4-1/2" BDSS bass/midrange driverscoupled to 1 each 5" x 10" bass radiator, 1 each 1" aluminum dome tweeter
Frequency response :40Hz - 30kHz
Sensitivity :92 dB
Nominal Impedance :8 Ohms
Recommended amplifier power :20 - 200 Watts
AV receiver crossover setting :Small, 80Hz
Inputs :1 pair 5-way binding posts
Product weight :20 lbs. | 9kg
 

Frequency Response:    45Hz- 100kHz
Sensitivity (1W@1M):    89 dB
Nominal Impedance:
4 Ohms
Maximum S.P.L
(Per pair in room):    112.8 dBA
Power Handling (RMS):    200 W
Recommended Amplifier Requirements (RMS):    60 - 200 W
Bass Alignment:    Rear Ported HiVe II Technology
Mid / H.F Crossover Frequency:    1800 Hz
Bass Low Pass Crossover Frequency:    250 Hz
Drive Unit Complement:    2 x 6 1/2" RDT bass/mid-range driver
1 x C-CAM high frequency ribbon transducer
External Dimensions -
Excluding Stand:    Width: 583mm (22 15/16 inches)
Height: 225mm (8 7/8 inches)
Depth: 291.2mm (11 7/16 inches)
Stand Dimensions:    Width: 610mm (24 inches)
Height: 335mm (13 13/16 inches)
Depth 463mm (18 1/4 inches)
Weight:    19 Kg (41.8lbs)

 User's Manual

ΔΙΑΤΙΘΕΤΑΙ ΣΤΑ ΠΑΡΑΚΑΤΩ ΧΡΩΜΑΤΑ

Frequency Response:    32 Hz - 100 KHz
Sensitivity (1W@1M):    90 dB
Nominal Impedance:
4 Ohms
Maximum S.P.L
(Per pair in room):    117.8 dBA
Power Handling (RMS):    250 W
Recommended Amplifier Requirements (RMS):    100 - 250 W
Bass Alignment:    Twin Ported HiVe II Technology
     Sealed Mid-range TLE
Mid / H.F Crossover Frequency:    4000 Hz
Bass Low Pass Crossover Frequency:    550
Drive Unit Complement:    2 x 8 long-throw RDT bass drivers
1 x 4" RDT Mid-range driver
1 x C-CAM high frequency ribbon transducer
External Dimensions -
Excluding Stand (H x W x D):    288 x 800 x 368 mm
(11 5/16 x 31 1/2 x 14 1/2 inch)
Stand External Dimensions -
Including Plinth Feet
(H x W x D):    335 x 610 x 463 mm
(13 13/16 x 24 x 18 1/4 inch)
Weight:    33.5 Kg (73.8lbs)

 User's Manual

ΔΙΑΤΙΘΕΤΑΙ ΣΤΑ ΠΑΡΑΚΑΤΩ ΧΡΩΜΑΤΑ

System Format:    2 Way
Frequency Response:    55 Hz - 60 kHz
Sensitivity (1W@1M):    89 dB
Nominal Impedance:    8 ohms
Maximum S.P.L
(Per pair in room):    111.5 dBA
Power Handling (RMS):    150 W
Recommended Amplifier Requirements (RMS):    100 - 150 W
Bass Alignment:    Sealed Cabinet
Crossover Frequency:    2.8 kHz
Drive Unit Compliment:    2 x 5.5" RST bass/mid-range driver
1 x C-CAM H.F ribbon transducer
External Dimensions excl Stand (H x W x D)

172 x 461 x 303 mm
(6 11/16 x 18 1/8 x 11 15/16 inch)
Weight (each) Excluding stands:    6 Kg (13.25 lbs)

ΔΙΑΤΙΘΕΤΑΙ ΣΤΑ ΠΑΡΑΚΑΤΩ ΧΡΩΜΑΤΑ

Driver Complements
Mid/Woofer     2 - 3 1/4" Diameter (8.26cm)
Dynamic Balance composite cone driver
Midrange    
Tweeter     1 - 3/4" Diameter (1.91cm)
silk dome
Electrical
Overall Frequency Response     90Hz-24kHz
Lower -3dB Limit     125Hz dB
Upper -3dB Limit     20kHz dB
Nominal Impedance     8 ohms
Recommended Amplifier Power     10-125 w/channel
Efficiency     91 dB
Inputs     Gold-plated 5-way binding posts
Dimensions
Cabinet Size     4 1/4" H x 16 11/16" W x 3 13/16" D
(10.79cm H x 42.39cm W x 9.68cm D)
Mounting Options     keyhole slot; .25 x 20 threaded insert
Enclosure Type     Non-resonant curved enclosure with time-alinged driver geometry and PowerPort bass venting
Shipping/Other
Product Weight     4.50 lbs. (2.04kgs)
Shipping unit:     each
Total Shipping Weight     5.50 lbs. (2.49kgs)
Speaker Warranty     5 years parts and labor (original purchaser)