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Polk Audio Tsi400 High performance floorstanding loudspeaker

Model #: Tsi400 Speakers - Each Black Color


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Middle of the Pack
The TSi400 approaches the performance of the TSi500 but improves upon TSi300's. If you don't need the extra bass response or power handling, the TSi400 is the speaker for you. With three 5" drivers and 1" silk dome tweeter, the results are higher power handling and extended bass capability over the TSi300. TSi400 is incredible for high impact movies and music.

Quality built cabinets.
Speaking of the cabinet (no, not the Presidential Cabinet), it's extensively braced from MDF with " thick baffles. Cheaper speakers will use other material such as particle board which is flimsy, robbing you of good sound. With pewter accents, a piano black top plate and removable black grille, TSi speakers look awesome and take up less than one square foot. All models are available in a choice of black or cherry wood grain, so don't be ashamed to show off your stereo equipment.

Small size, big sound.
The OWM Series are designed to be used with TSi Series for rear surround speakers in your 5.1 or 7.1 system. They feature Capacitive Coupling Technology (CCT) which creates a gentle impedance dip within the range where conventional sealed-box loudspeakers are subject to severely reduced bass output. The result- you get 3dB more bass output over a fairly broad range. It's as if the loudspeaker's enclosure grew by 30 to 50% in volume.

Innovative speaker technology.
Like all Polk speakers, TSi is put through Klippel Optimization and Dynamic Balancing. So what does this mean? It means your speakers will sound awesome no matter what volume. Some speaker brands sound horrible at higher volumes. Not Polk. We make sure your speakers sound great, no matter what volume you play them at.

High efficiency design.
Compatible with practically all electronics, these are speakers that produce sound that's open, spacious and clear, even when driven by modestly-powered amplifiers and receivers. No matter if you just bought a new digital surround receiver, or are hooking up your new TSi Series speakers to vintage electronics, they will still sound great.

Narrow baffle geometry.
Bringing the best of both worlds- narrow baffle geometry is a design that creates a sleek looking speaker with slick sound. First the high quality cabinet is slender (less than one square foot) and tucks away easily in your room. The smaller-diameter speaker components are lighter in mass, translating to clearer sound.

Multiple small-diameter driver configuration.
In combination with narrow baffle geometry- this configuration provides a slender cabinet that sounds awesome. Why use smaller drivers instead of one huge woofer? Many reasons, first smaller drivers are capable of better detail than their larger counter parts. They also project sound over a wider area, so every seat in the house gets great sound. Second, we can minimize the width of the cabinet making it sleeker, giving you more room for a larger screen.

Silk dome tweeter and polycarbonate drivers.
The nuts and bolts behind TSi's clear and crisp sound quality. Forget speakers with harsh horns or hard metal dome tweeters- they'll grab your attention at first but after prolonged listening, your ears will get tired. TSi's soft silk dome tweeters and polycarbonate drivers sound smooth and natural. Your ears will relax and thank you.

High Quality Connectors and Internal Components
All TSI Series Loudspeakers come with five-way binding posts, which offer exceptional versatility as they ensure absolutely most secure hookups
Internal components include Mylar bypass capacitors- providing sparkling highs. At Polk, we don't cut corners; we use high quality components for the best sounding speakers.

Rich, smooth bass.
All TSi models feature Critically Tuned Flared Ports. Flared Ports minimize port noise ("chuffing") and ensure good low frequency extension with low distortion. With Flared Ports, TSi speakers reveal realistic, natural, full-bodied sound with rich bass.

Stabilizer feet keep your speakers from dancing.
Floorstanding TSi Tower Speaker models feature bold, fat stabilizer feet. These stylish feet ensure stability on carpet or hard floors so that all of the speaker's energy goes into making sound instead of rocking the speaker. Stabilizer feet help the TSi Series Floorstanding Tower Speakers deliver more precise bass response and superior imaging.

Driver Complements

Mid/Woofer: 3 - 5 1/4" Diameter (13.34cm)
Bi-Laminate Organic Fiber cone
Tweeter: 1 - 1" Diameter (2.54cm) Silk Dome Dynamic Balance


Overall Frequency Response: 34-25KHz
Lower -3dB Limit: 44Hz dB
Upper -3dB Limit: 24KHz dB
Nominal Impedance: 8 ohms
Recommended Amplifier Power: 20-200 w/channel
Efficiency: 91 dB
Crossover: 2500 Hz, 2nd order
Inputs: 5 way binding posts


Cabinet Size: 38 7/8" H x 7" W x 14 1/4" D
(98.74cm H x 17.78cm W x 36.20cm D)
Enclosure Type: Vented


Product Weight: 32.00 lbs. (14.51kgs)
Shipping unit: Each
Total Shipping Weight: 37.00 lbs. (16.78kgs)
Speaker Warranty: 5 years parts and labor (original purchaser)

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