Polk Audio TSi400 4-Way Tower Speaker With Three 5.25" Drivers - Each

Model: AM6205 UPC: 747192118129 Item: 1088

$249.00 OR

Regular Price: $269.00

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754 Route 309 (Bethlehem Pike) Montgomeryville, PA 18936
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38 Greenfield Avenue, Ardmore, PA 19003
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The Polk TSi400 Produces Smooth, Natural Sound

Expect a major audio performance impact from the small Polk Audio TSi400 speaker. Perfect for compact spaces, this tower speaker features compact drivers that provide a wider range and more spacious sound staging. Well-braced cabinets work to eliminate internal vibrations while a silk tweeter delivers crisp highs. A woodgrain vinyl finish gives the TSi400 a simple, elegant look without disrupting your decor.

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Product Information


  • Realistic sound transports you to a live performance
  • Crystal clear, distortion free at any volume
  • Wide frequency range for dynamic soundstage
  • Powerful bass response
  • Elegant wood grain, gloss black finish
  • Weight – 45 lbs.
  • Cabinet Dimensions D 14-1/2” (36.83cm) H 38-3/4” (98.42cm) W 8-3/16”  (20.32cm)
  • Warranty: 5 Year factory  
  • World Wide Stereo 60-day guarantee and expert product support

Big Sound for Small Spaces

Do you want to upgrade your home entertainment experience but worry about limited space? Polk’s TSi400 4-Way Tower Speaker with three 5-1/4" drivers gives you that big theater sound without taking up your valuable floor space. But don’t let its size fool you; these Polk Audio Tower Speakers deliver pure, powerful, room shaking sound without taking up too much room, or breaking the bank.

High Quality Components

Polk’s TSi400 gives you a lot of bang for your buck. Similarly priced speakers are built with inferior materials. The TSi400 enclosure is made from resonance deadening, medium density fiberboard (MDF). Other cabinets in this price range are made from flimsy particle board. When you look inside the enclosure, a silk-dome tweeter delivers crystal clear highs, while three woofers deliver deep and powerful bass. Tech talk aside, Polk’s TSi400 richly reproduces everything from Tchaikovsky to hip-hop and everything in between.

Audio Options Galore

The folks at Polk don’t cut corners with their TSi speaker line. The TSi400 has dual binding posts that allow for bi-amp or bi-wire connections. So, you can take advantage of all the power your amplifier has or use two amplifiers to get a wider frequency range and get the most out of your speakers. This is a feature rarely found in other speakers at a similar price point - only Polk Audio Tower Speakers bring this level of audio performance!  

Built for Movies and Music (and more)

Polk’s TSi400 4-Way Tower Speaker with three 5-1/4" drivers has a wide frequency range. It produces highs that are crystal clear and bass that is deep and powerful. Its broad soundstage and small footprint make this the perfect speaker for your home stereo system or front channel speakers for surround sound. No matter how you plan to use this speaker, Polk’s TSi400 will deliver lifelike sound with the power to virtually transport you into the front row of concert hall or the middle of your favorite movie scene.

The Power of Polk

In 1972, the founders of Polk set out to recreate concert quality sound in homes without charging outrageous prices for ridiculously large speakers. Their goal was to design an affordable, better sounding and more practical speaker. Times and fashions may have changed, but one thing has stayed the same. Polk is still crafting high quality, great sounding, affordable speakers.

Seamlessly Blends Into Your Décor  

Traditionally, if you wanted to get big sound, you had to spend big money on big speakers. Polk’s TSi 400 tower design takes up less than one square foot of floor space. So, you can get all of the dynamic sound you find at the movies and in concert halls without having to rearrange your living space.  And, if that isn’t enough, this speaker features beautiful wood grain, vinyl finish that blends in with your furniture so it doesn’t distract from the rest of the room.



Customer Reviews for Polk Audio TSi400 4-Way Tower Speaker With Three 5.25" Drivers - Each

5.0 / 5.0
9 Reviews
5 Stars
4 Stars
3 Stars
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1 Star
Rated 5 out of 5
A classic and for a good reason
I have slowly moved up the Polk Audio line and now find myself owning this amazing set of TSI400's. We recently moved into a new home and our entertainment space is bigger and, so, my trusty and gorgeous TSI300's will now be relegated to their second decade of use in the den. The new TSI400's take their rightful place at the head of the table. Now playing some 70's classic rock after about 50 hours of break-in time. They are rocking. Yes, they are being helped along a bit on the bottom end by a Polk sub. And, why not? Let's take advantage of all the tools and toys available on our way to stud nirvana, shall we? We shall. Smooth and silky mid-range with the highs just touching the right sweet spot, too. Don't hesitate on these, and don't let the low price scare you away (yes - I said that) audiophiles, pretenders, posers, etc. These don't need a ton of juice to blow off the roof - and they will do that and also reach down in the quieter moments and deliver there as well. Five Stars and unhesitating highest recommendation.
February 28, 2019
Originally posted at
Polk Audio
Rated 5 out of 5
New not yet set up
February 21, 2019
Rated 5 out of 5
Very satisfied customer.
Great speakers for the money. No complaints at all!
This review was collected as part of a promotion
October 17, 2018
over 2 years ago
Rated 5 out of 5
Several years later these puppies still impress me
I have had a pair of these speakers for several years and still highly rate their sound quality and punch. Good bass, amazing sounding tweeters and can pump out the SPL.
Most impressive is the years of abuse i have given them they are still going strong!
March 15, 2018
Originally posted at
Polk Audio


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World Wide Stereo Store
name says it all
john n on Mar 6, 2018
name says it all
john n on Mar 6, 2018