Our flagship.
The ultimate statement of Polk's mission, the LSiM 707 is like no other loudspeaker in its price range. Featuring exclusive state-of-the-art technologies, proprietary patents, and designed in-house from the ground up, this is pure high performance audio of a completely different stripe.
Experience realistic, transparent midrange reproduction with a 3 1/4-inch midrange driver of lightweight super cell aerated polypropylene. Pinpoint detail is revealed by a 1-inch ring radiator tweeter. The LSiM 707 effortlessly achieves the deepest bass with dual 6×9-inch Cassini oval subwoofer radiators and Polk’s patented PowerPort® bass venting, which eliminates performance-robbing turbulence at the mouth of the bass port. Engineered into a sculpted, state-of-the-art enclosure and finished like a beautiful piece of furniture, there is simply nothing like the LSiM 707.
- Polk’s exclusive dynamic sonic engine design optimises the midrange driver and the ring radiator tweeter in separate interior chambers for improved transient response, superior imaging and greater horizontal off-axis response.
- Enhanced, reengineered ring radiator tweeters extend top-end response for incredible details and realistic imaging.
- Newly designed Cassini oval subwoofer drivers, with more surface area than round drivers, dramatically improve low-frequency response for deep, well-blended bass.
- Our innovative overhung voice coil design augments the excursion length for subwoofer drivers, increasing their power-handling capabilities and enhancing bass response.
Specs:
Tweeter:
- Quantity: 1
- Diameter: 2.54 cm
- Type: Dynamic Balance enhanced ring radiator tweeter
Midrange:
- Quantity: 1
- Diameter: 8.26 cm
- Type: Dynamic Balance driver with super cell aerated polypropylene cone
Mid / woofer:
- Quantity: 1
- Diameter: 16.51 cm
- Type: Dynamic Balance driver with super cell aerated polypropylene cone
Subwoofer:
- Quantity: 2
- Oval height: 22.86 cm
- Oval width: 15.24 cm
- Type: Dynamic Balance oval drivers with super cell aerated polypropylene diaphragms
Electrical:
- Total frequency response: 20Hz-40kHz
- Lower –3dB limit: 38 Hz
- Upper –3dB limit: 30 kHz
- Nominal impedance: 8 Ohms
- Efficiency: 88 dB
- Crossover type: Orth crossover design
- Tweeter/midrange crossover frequency: 3 kHz
- Midrange/midbass crossover frequency: 300 Hz
- Midbass/woofer crossover frequency: 100 Hz
- Recommended amplifier power: 20–300 watts per channel
- Inputs: Dual gold-plated binding posts
Dimensions:
- Cabinet dimensions: 129.1 cm (H) x 24.1 cm (W) x 46.8 cm (D)
- Mid-high array enclosure type: Sealed
- Subwoofer enclosure type: Dual PowerPort bass venting
- Footprint: 26.7 cm (W) x 51.6 cm (D)
- Product weight (each): 45 Kg