LSi-9 vs LSi-7
The LSi-7 matches the LSi-9 on sensitivity (88 dB), impedance (4Ω), high-frequency extension (26 kHz), and woofer (5.25").
AI-generated product photo — not official manufacturer imagery.
Estimated price (community-sourced)
Around — community and catalog average, updates slowly
The Polk Audio LSi9 is a 2-way, ported bookshelf speaker with a 1-inch ring-radiator tweeter and two 5.25-inch aerated-polypropylene woofers. It is a 4-ohm, high-current-design speaker with 88 dB sensitivity, dual 5-way binding posts for bi-wiring or bi-amping, and a frequency response of 50 Hz to 26 kHz (-3 dB). It was offered in natural cherry or black wood veneer and is video-shielded for home theater use.
Driver and acoustic performance characteristics
Driver configuration and enclosure design
Size, weight, and appearance
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions
Components that show up alongside the LSi-9 in real systems. A verdict means the pair has been checked for compatibility and headroom — open it to see how the two get along.
The closest alternatives on specs, description and the systems they turn up in, with the specs they share set side by side.
The LSi-7 matches the LSi-9 on sensitivity (88 dB), impedance (4Ω), high-frequency extension (26 kHz), and woofer (5.25").
The Diamond 12.1i's impedance is 8Ω against the LSi-9's 4Ω and its woofer 5" against 5.25". Both share sensitivity (88 dB) and ways (2).
The AE100²'s sensitivity is 87 dB against the LSi-9's 88 dB and its impedance 6Ω against 4Ω. Both share high-frequency extension (26 kHz) and ways (2).
The OBERON 1's sensitivity is 86 dB against the LSi-9's 88 dB and its impedance 6Ω against 4Ω. Both share high-frequency extension (26 kHz) and woofer (5.25").
Wharfedale Denton 80th Anniversary
The specs and the pairings above are open to everyone. Sign up and you get the system builder, the assistant, a compatibility check against the gear you already own, and a watch on this product so a price or pairing change reaches you.
Sign up free