LSi-7 vs LSi-9
The LSi-9 matches the LSi-7 on sensitivity (88 dB), impedance (4Ω), high-frequency extension (26 kHz), and woofer (5.25").
AI-generated product photo — not official manufacturer imagery.
LoudspeakersBookshelf SpeakersDiscontinued
Estimated price (community-sourced)
$400
Around — community and catalog average, updates slowly
About the LSi-7
Polk Audio LSi7 bookshelf speakers are a 2-way, ported design with a 5.25-inch aerated polypropylene woofer and a 1-inch ring-radiator tweeter. They use a 4-ohm nominal impedance, 88 dB sensitivity, and a recommended amplifier power range of 20 to 150 watts, with a frequency response of 53 Hz to 26 kHz (-3 dB). The cabinet uses MDF construction with real wood side panels in ebony or cherry finishes, and the speakers include dual binding posts for bi-amping/bi-wiring.
Specifications
Transducer Specifications
Driver and acoustic performance characteristics
- Sensitivity
- 88 dB SPL @ 1W/1m
- Impedance
- 4Ω
- Frequency Response
- 53 Hz - 26 kHz
- Power Handling
- 150W
- Min. Amplifier Power
- 20W
- Max. Amplifier Power
- 150W
Speaker Design
Driver configuration and enclosure design
- Configuration
- 2-way
- Driver Type
- dynamic
- Driver Size
- 5.25"
- Driver Count
- 2
- Enclosure Type
- ported
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 219.08 × 348.67 × 261.62 mm (W × H × D)
- Weight
- 9.53 kg (21 lbs)
- Available Colors
- Cherry, Ebony
Key Specifications
Sensitivity: 88 dB
Impedance: 4Ω
Frequency: 53-26000 Hz
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions