Polk Audio TSi400 4-Way Tower Speakers with Three 5-1/4" Drivers - Pair (Black)

Model: WWSTSI400B UPC: 013964979947 Item: 166093

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104 E Vine St.
Hatfield, PA 19440
  • Mon - Fri: 9am - 5pm
  • Sat: By appointment only
  • Sun: Closed
(866) 961-7781
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754 Route 309 (Bethlehem Pike)
Montgomeryville, PA 18936
  • Mon: 9:30am - 8pm
  • Tues - Fri: 9:30am - 6pm
  • Sat: 9:30am - 5pm
  • Sun: 12pm - 5pm
(215) 368-8343
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38 Greenfield Avenue,
Ardmore, PA 19003
  • Mon- Fri: 10am - 6pm
  • Sat: 10am - 5pm
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(610) 649-7002
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This pair of Polk TSi400 4-Way Tower Speakers is the perfect way to transport yourself into the on-screen action. Built to overpower a smaller to medium-sized room, the TSi400s are made with high-end materials like silk dome tweeters, allowing you to push each speaker to the limit without breaking the audio quality. And the beautiful gloss piano black finish means it's the perfect fit for any room's color scheme.

Polk TSi400 Speaker Features:

  • Listen to each track with a new intensity from strong high and low frequencies
  • Capture the deep bass sound you love in every song
  • Built with high-quality materials to ensure great listening for years to come
  • These speakers come packaged as a pair for a full stereo sound

Product Information

Step down in size from the TSi flagship TSi500 when you want big impact in a smaller room. Here, three smaller drivers in the classic TSi narrow baffle design make more efficient use of power, while delivering the same wide, realistic soundstage and deep, musical bass response you desire.


Polk TSi400 Speakers Features:

  • Unlike other speakers in this price range, TSi enclosures are constructed of extensively braced, solid MDF with 3/4-inch baffles. This virtually eliminates internal resonances and damps energy-stealing vibrations, for more efficient operation and more transparent sound.
  • Beautiful pewter accents, a high gloss piano-finish black top plate and your choice of stylish black or cherry wood-grain finishes make TSi speakers a part of your decor.
  • Polks proprietary, patented Dynamic Balance technology allows the engineers to design out distortion-causing driver and system resonances, so you only hear the good sounds.
  • Klippel motor optimization uses laser measurement technology to ensure a smooth excursion path at either end of the volume spectrum for uniform performance at both low and high volumes.
  • TSi design combines smaller drivers (for more overall driver area with less driver mass) and narrow baffle geometry (taking up less than one square foot of floor space), for wider range and more spacious soundstaging, so every seat in the house hears a prime performance.
  • Unlike horns or metal domes, silk dome tweeters deliver clear and detailed highs, without fatigue, even at high volume.
  • Durable, efficient, and tuned with the Dynamic Balance process, TSi Series polycarbonate cones produce smooth, natural sound.
  • Surprisingly deep, musical bass response thanks to the critically tuned flared port venting system, which minimizes port noise ("chuffing") and smooths the turbulence of port air flow, to reveal big, full-bodied bass that blends effortlessly with the speakers overall dynamics.
  • All Polk loudspeakers are timbre-matched within their series, designed with the same components throughout, to achieve seamless speaker-to-speaker blending effects in multi-channel systems.
  • The high efficiency design results in sound thats spacious and clear, warm and realistic, when combined with practically any electronics, even the most modestly-powered amplifer or receiver.
  • The high performance crossover system boosts performance with premium components, like mylar bypass capacitors, to extend response in the higher, more detail-oriented frequencies.
  • Dual gold-plated, professional-style 5-way binding posts, for the most secure connection options.
  • Dual binding posts allow bi-amp or bi-wire connections, for the ultimate in customized high performance audio.
  • Fat stabilizer feet on TSi Series floorstanding models make a solid stand on both carpet and hard wood floors, with the stability and efficiency to deliver more precise bass response and superior imaging.
  • All Polk products are made using the best materials and the most advanced manufacturing techniques. They pass the industrys most exhaustive quality tests, including drop testing, extreme signal response and UV & salt exposure testing. Polk loudspeakers are built to perform for a lifetime.

What's in the Box

What's In The Box:

  • 2x TSi400 speakers


*Note: Speaker wire sold separately. Check out our selection of cables here!

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