Sound That Blankets the Soul
The exclusive Polk Audio Dynamic Sonic Engine allows the LSiM707 to engulf listeners. The unique alignment of internal components allows this speaker within the speaker to disperse sound over a wide area.
Dynamic Sonic Engine
Exclusive Polk Audio Dynamic Sonic Engine design optimizes the midrange driver and the ring radiator tweeter in separate interior chambers for improved transient response, superior imaging and greater horizontal off-axis response.
Beautifully Blended Bass
Cassini oval subwoofer drivers have more surface area than round drivers, dramatically improving their low-frequency response for deep, well-blended bass. The result is sound that seamlessly varies among frequencies for more lifelike reproduction.
VOICE COIL INNOVATION FOR ENHANCED RESPONSE
Innovative overhung voice coil design augments the excursion length for subwoofer drivers, increasing their power-handling capabilities and enhancing bass response. Extended linear motion allows lots of movement in a limited space, eliminating impedance and extending mid- and high-frequency response.
DYNAMIC BALANCER TECHNOLOGY
Polk Audio engineers created a way to design out distortion-causing driver and system resonance. That means you hear the sounds created by the artists not the components.
SUPER CELL AERATED POLYPROPYLENE CONE
Aerated Polypropylene has the ideal balance of superior damping properties and lightweight stiffness for more efficient action with less distortion. The durable, computer- modeled, injection- molded butyl rubber surrounds suppress unwanted cone resonances for purer sounds note after note.
EXTRA SOLID CABINET ENCLOSURES
High-quality, heavy-duty enclosure construction on the back and bottom, as well as baffles with substantial internal bracing and separate interior cabinetry for each driver eliminate cabinet resonances.
. Type tower
. Tweeter 1" (25mm) enhanced Ring Radiator
. Midrange 3 1/4" super cell aerated polypropylene
. Midbass 6 1/2" super cell aerated polypropylene
. Woofers 6" x 9" Cassini oval, super cell aerated polypropylene
. Frequency Response (-3dB limits) 38 Hz - 30 kHz
. Overall Frequency Response 20 Hz - 40 kHz
. Steady State Recommended Amp Power 20 W - 300 W
. 2.83V Sensitivity 88 dB
. Impedance compatible w/ 8 Ohm outputs
. Midrange Enclosure Type sealed
. Midbass Enclosure Type sealed
. Woofer Enclosure Type dual PowerPortR
. Dimensions W x H x D (greatest overall depth, grille) 9 1/2" x 50 13/16" x 18 7/16" 24.1 cm x 129.1 cm x 46.8 cm
. Base Dimensions 10 1/2" x 20 5/16" 26.7 cm x 51.6 cm
. Product Weight (each) 99.2 lbs (45 kg)
. Shipping Weight 114.7 lbs (52 kg)