Luxurious sound from polk's gorgeous, flagship floor-standing speaker Immerse yourself in smooth, high-end sound that envelops and caresses you thanks to polk's lsi m 707. Building upon the widely acclaimed lsi family of speakers, the lsi m series incorporates the latest developments in speaker technology, fitted into a newly designed enclosure that's beautifully sculpted and luxuriously finished. You'll hear a wide, deep soundstage with realistic imaging fleshed out in pinpoint detail, and anchored by effortlessly deep bass. It'll faithfully reproduce your most demanding audio sources from top to bottom, without any help from a separate subwoofer. It makes an excellent pair in a stereo music setup or becomes the shining star in a knock-out home theater system. Polk audio lsi m 707 floor-standing speaker Add incredible sound ??? and great looks ??? to your home's entertainment system. Polk's dynamic sonic engine: the speaker within a speaker The heart of the lsi m 707 is polk's dynamic sonic engine. Made up of a 3-1/4" midrange driver and a 1" ring radiator tweeter in its own acoustically sealed enclosure, this tightly spaced duo acts like a "Mini-monitor." the precise alignment of the midrange and tweeter allows them to disperse sound over a wide, uniform area with excellent off-axis response in the critical 200 hz to 2,000 hz midrange. Rich lifelike details, with crisp mids and highs The ring radiator tweeter features several improvements from the version in the earlier lsi line. A slight reshaping of the tweeter's bullet-shaped phase plug allows it to move even farther out of the baffle, while a redesigned diaphragm has made the tweeter even more efficient. It even has its own tuned enclosure within the dynamic sonic engine. These changes result in higher power handling, extended dynamic range, improved dispersion, and extended high-frequency response ??? all the way up to 30,000 hz! Cherry Advanced driver material for even more realistic sound The original lsi speakers featured a light, stiff mineral-filled polypropylene cone that was "Puffed up" with injected air to form a honeycomb-like structure. The new super cell aerated polypropylene uses larger "Puffed cells" to create a cone material that's thicker yet lighter than the original. It's used in both the midrange and midbass drivers, as well as both woofers, allowing them to move faster and with more efficiency. Dual woofers deliver smooth, effortless bass Low on the '707's front baffle you'll notice dual 6" x 9" woofers. The oval shape helps them produce tight low-frequency music and movie sounds while maintaining a narrow cabinet width. Plus, each woofer has its own powerport?? ??? a unique polk design that positions specially designed "Cones" at the mouth of the bass ports to direct moving air to eliminate bass-stealing turbulence. No turbulence means no wasted power, which means more efficient bass response. Four-way design for clear, low-distortion sound The lsi m 707 features a 4-way design, meaning that the tweeter handles only the highest of frequencies, the midrange handles the middle frequencies, the midbass handles the mid to low frequencies, and the woofers handle only the lowest frequencies. This separation allows each driver to perform within its optimum range, meaning you'll hear sound with absolute clarity and stunning impact. And this speaker uses proprietary orth crossovers, making it extremely efficient and easier for your receiver or amplifier to drive. Careful cabinet design with a stunning real wood veneer The '707 cabinet is made of heavily braced 3/4" thick mdf with an even thicker front baffle (1-1/4") to keep distortion to a minimum. Each driver has its own separate, non-parallel chamber to increase the efficiency of each driver and eliminate internal resonances and standing waves. Dual gold-plated binding posts let you bi-amp or bi-wire this speaker for even better performance. The magnetic grille easily snaps on and off, and it measures less than 1mm thick, so it won't interfere with the sound. And finally, the curved cabinet is finished with a furniture-grade, real-wood veneer that's hand-polished to achieve a gorgeous glow in your home.