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LoudspeakersCenter Channel SpeakersDiscontinued
Estimated price (community-sourced)
$275
Around — community and catalog average, updates slowly
About the LSiM 704c
The LSiM 704c is a three-way center-channel loudspeaker from Polk Audio’s LSiM series. Its driver array consists of a 1-inch enhanced Ring Radiator tweeter, a 3.25-inch Super Cell aerated polypropylene midrange driver, and two 5.25-inch Super Cell aerated polypropylene woofers. The midrange is housed in a sealed enclosure, while dual PowerPort technology supports the woofers. It has gold-plated five-way binding posts and a hand-rubbed real-wood veneer finish.
Specifications
Type: Center-channel loudspeaker; Drivers: 1 × 1-inch enhanced Ring Radiator tweeter, 1 × 3.25-inch Super Cell aerated polypropylene midrange, 2 × 5.25-inch Super Cell aerated polypropylene woofers; Frequency response (-3 dB): 70 Hz–30 kHz; Overall frequency response: 40 Hz–40 kHz; Sensitivity: 88 dB (2.83 V); Impedance: compatible with 8-ohm outputs; Recommended amplifier power: 20–200 W; Crossover frequencies: 2.5 kHz (tweeter/midrange), 280 Hz (midrange/midbass); Enclosures: sealed midrange, dual PowerPort woofer enclosure; Dimensions (W × H × D): 21 3/16 × 7 3/4 × 9 3/8 inches (53.8 × 19.7 × 23.8 cm, greatest overall depth with grille); Weight: 27.8 lb (12.6 kg); Finish: real-wood veneer; Connections: five-way binding posts.