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Polk Audio TSi400 Floor-standing speaker (Cherry)

Item # 107TSI400C

Whether you're looking for speakers for your stereo music system or seeking out new front speakers for your home...

Whether you're looking for speakers for your stereo music system or seeking out new front speakers for your home...

11 questions - 39 answers

Item # 107TSI400C

About the Polk Audio TSi400

Loren Barstow
Whether you're looking for speakers for your stereo music system or seeking out new front speakers for your home theater, you can count on the Polk TSi400 for clean, engaging sound. Its silk tweeter delivers sparkling highs, while three polycarbonate woofers churn out accurate mids and lows. The well-braced cabinet fights resonance so the details in your music and movies shine through. Dual five-way binding posts let you bi-amp or bi-wire the TSi400 for even better performance — a rare feature for a speaker in this price range.

Whether you're looking for speakers for your stereo music system or seeking out new front speakers for your home theater, you can count on the Polk TSi400 for clean, engaging sound. Its silk tweeter delivers sparkling highs, while three polycarbonate woofers churn out accurate mids and lows. The well-braced cabinet fights resonance so the details in your music and movies shine through. Dual five-way binding posts let you bi-amp or bi-wire the TSi400 for even better performance — a rare feature for a speaker in this price range.

A woodgrain vinyl finish gives the TSi400 a refined look, capped by an elegant piano black top plate. At the base of the speaker you'll find sturdy stabilizer feet to keep it anchored to your floor, regardless of whether it's carpeted or non-carpeted. And since the speaker's footprint takes up less than one square foot, you can enjoy high-impact tower speaker sound without sacrificing a lot of space.

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Product highlights:

  • bass-reflex (ported) design
  • frequency response 44-24,000 Hz (-3dB)
  • handles 20-200 watts
  • 1" Dynamic Balance® silk dome tweeter
  • three 5-1/4" polycarbonate woofers
  • 8-ohm impedance
  • sensitivity 91 dB
  • dual 5-way binding post terminals
  • woodgrain vinyl finish with piano black top plate
  • 8-3/16"W x 38-3/4"H x 14-1/2"D
  • warranty: 5 years
Priced each
  • MFR # AM6202-A

What's in the box:

  • Cherry tower speaker
  • Detachable cloth grille (installed)
  • Owner's Manual
  • Wall-Mount template
  • Online registration sheet
  • Polk Audio product brochure

See the difference between "Open Box" and "Scratch & Dent" Outlet items

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212 reviews

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More details on the Polk Audio TSi400

Stacey B.

Features & specs

General
Enclosure Bass Reflex
Finish Wood-grain vinyl
Color Cherry
Tweeter Soft-Dome
Tweeter Size (inches) 1
Midrange Size (inches) N/A
Woofer Size (inches) 5.25
Woofer Composition Organic Fiber
Woofer Surround Butyl Rubber
Built-in Powered Sub No
Dolby Atmos Drivers No
Connector Type 5-Way post
Bi-amp Inputs Yes
Parts Warranty 5 Years
Labor Warranty 5 Years
Specifications
Power Range 20-200
Frequency Response 44-24k Hz
Sensitivity 91 dB
Impedance (Ohms) 8
Subwoofer Amp Power ---
Height (inches) 38-3/4
Width (inches) 8-3/16
Depth (inches) 14-1/2
Weight 32 lbs

Product Research

Driver Technology
Enclosure Design
Connections
Mounting Options

Driver Technology

Dynamic Balance: Dynamic Balance is a proprietary Polk Audio technology using laser imaging to determine what combination of speaker materials create the least amount of resonance. Eliminating resonance in speakers results in a wide, smooth response and low distortion.

Klippel Optimized: Using a state-of-the-art Klippel Distortion Analyzer, Polk engineers were able to optimize the speaker structure and cabinet design for the best possible performance, even at extreme listening levels.

High Efficiency Design: Compatible with practically any AV receiver, these speakers produce sound that is open, spacious and clear, even when driven by modestly-powered amplifiers and receivers.

Bi-Laminate Composite Woofers: The speaker features three 5.25" bi-laminate composite dynamic balance drivers which are light and stiff for deep bass response and low distortion. The multiple smaller driver configuration is capable of better detail than one single large woofer. This design also projects sound over a wider area, so there is a broader "sweet-spot". For high performance durability, each woofer uses a butyl rubber surround.

Silk dome Tweeters: The speaker features a 1.0" silk dome dynamic balance tweeter for detailed highs. The tweeter features mylar bypass capacitors in the crossovers to extend high frequency response and improve detail and transparency.

Frequency Response: The overall frequency response is 34Hz-25kHz and the -3dB frequency response is 44-24kHz.

Enclosure Design

Quality Built Cabinets: The TSi speaker cabinets are extensively braced MDF with ¾" thick baffles. 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 vinyl finish.

Narrow Baffle Geometry: Narrow baffle geometry is a design that creates a sleek looking speaker with great sound. The high quality cabinet is slender and tucks away easily in your room. The smaller-diameter speaker components are lighter in mass, translating to clearer sound.

Flared Ports: All TSi speakers 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. These TSi floorstanding speakers feature a down-firing power port.

Connections

Dual 5-Way Binding Posts: The speaker has two sets of gold-plated 5-way binding posts connected by gold-plated jumpers. Using the dual 5-way binding posts, you can bi-amp or bi-wire the speakers.

Mounting Options

Placement: Create an equilateral triangle between the speaker and the listening position. If you notice video distortion or discoloration, immediately move the speaker away from the video source.

Built-In Conical Feet: The speaker features four built-in conical feet to ensure stability for precise bass response and superior imaging.

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Customer Q&A

11 questions already asked

Q
can these TSI400 or TSI300 speakers take Banana Plugs or only bare wire And how do i bi-amp them?
new to this  May 18, 2021
4 answers
A
We have advisors that can be reached by calling 1-800-324-9695 who will discuss your receiver/amp gear and, if its possible to use to bi-amp the speakers, then give a recommendation on the rest of the gear needed to complete the bi-amp setup
jason  May 22, 2021 (Staff)
A
I have the TSI400s and used banana plugs. You can also use bare wire. Bi-amp configuration would depend what receiver is used.
william  May 18, 2021
A
They will accept banana plugs, spades and bare wire. The manual for your stereo/AVR/whatever should show you how to bi-amp if it is supported.
chris  May 18, 2021
A
Yes these can take banana plugs. To bi-amp you would need to remove the bridge clip, coming out of your AVR Pre-amp port or Processor Unbalanced Port you would need a 1Male RCA to a 2Male RCA cable, you can find them on Monoprice You would then be splitting the signal and going to the input of your amplifiers. You would then go from the Amps to the back of the speaker. Hope that makes sense. If not, Audio Advice has a good article, and Techno Dad has a good video on YouTube explaining, just look on Google "How to Bi-amp speakers."
allen  May 18, 2021
Q
Are these work with Yamaha R-N303BL ?
james  May 28, 2020
2 answers
A
I'm not that familiar with the yamaha unit but I love these speakers and as long as the head unit powers them adequately you'll enjoy them too.
scott  May 28, 2020
A
These will work just fine. Just be sure to play them at low volume for some time before normal use. They are amazing speakers for the price.
dave  May 28, 2020
Q
Will these work with my Sony receiver? It's an old Dolby pro logic from the 90s. 8 ohm impedance. I believe 150 per channel. STR d711
james  Jun 18, 2018
4 answers
A
I am fairly certain that they will work fine.
robert  Jun 19, 2018
A
Hello. Yes they will. These are 8 ohm speakers and they handle up to 150 rms. I have them hooked to an old Onkyo stereo receiver myself. Now, if you are using them for movies and not just as your main stereo speakers, then you will need the matching center channel and a pair of the bookshelf version of these for your surround. But the center channel is the really important one so you have correct timbre matching.
demetrio  Jun 18, 2018
A
Yes it will work
jason  Jun 18, 2018
A
They should work with no issues, whether you use them as stereo speakers or as part of a surround sound system. Impedance and wattage are well within operating range.
carlos  Jun 18, 2018
Q
How's the bass response on these? I primarily listen to vinyl.
james  Jun 18, 2018
6 answers
A
I find the bass to be quite adequate. A lot of this is going to be dependent on where they are placed. to be honest the bass actually kind of surprised me with these. As I was expecting them to be weak but a few times they shook the place good.
david  Apr 05, 2022
A
James, Sorry for the delay in getting back to you. I don't know if I can answer your question. I am currently using these towers for the front right and left of a home theater. I also have 2 amplified subs, a center channel speaker and mid range and back ground set in my ceiling. System all together with a 7 channel receiver brings even the most boring movies to life. With the right installation, I think these speakers would work Great for you.
larry  Jun 25, 2018
A
Bass sounds great.
randall alan  Jun 24, 2018
A
I also use them primarily for vinyl and they do need a sub unless the room is really small and have great acoustics. I have them paired to a Pioneer sub and no complaints, although I wish the sound on them was a bit brighter.
demetrio  Jun 18, 2018
A
I use them with a sub so I don't have a lot of listening time of the pair alone, but my sense is that they are a bit weak on bass. I would recommend a sub with these, or instead look at models with larger woofers.
john  Jun 18, 2018
A
I have them connected with a separate subwoofer - so it's hard to say how much bass response thay have independent of the sub. I listen to lots of acoustic music on them and they sound great with a fat and full mid range which is their primary function for me. Hope that helps!
andres  Jun 18, 2018
Q
I live in a older home with smallish (living & bedroom 192 sf each). I just want to hear louder sound with reasonabil clarity. Could I get by with one speaker in each room?
bobby  Jul 22, 2017
4 answers
A
Would think you would be better off with a small pair of bookshelfs... but using only one of the speakers would be clear enough for a small room
michael  Jul 24, 2017
A
In a small home with small rooms, I suppose you could. You will have channel separation issues and running speaker wire will be interesting. Might be better to have a small set in each room that you can switch between or run both at the same time.
jamie  Jul 23, 2017
A
very loud and clear, great speakers
donald  Jul 23, 2017
A
They are amazing speakers for the price. I would think yes.
jeff  Jul 22, 2017
Q
Do I need to use a sub woofer with these?
paul  Nov 28, 2016
4 answers
A
The low end on these is.... ok. If you have these in a small room then you might be alright. But in even a decent sized room you're going to want some additional low end.
allen  May 18, 2021
A
These speakers make for better viewing when part of a 5.1 system than they do as a music listening system on 2.0. FYI. I used a Polk subwoofer and am still not happy with the music, bass is lacking.
michael  Jul 24, 2017
A
I agree. I was disappointed in the amount of bass coming out of these. I had intended them to replace a pair of large JVC floor speakers. But they just didn't deliver the bass. So I put them as my rear speakers and reinstalled the 15" JVCs. I also have a Polk sub. My system definitely sounds better with these instead the bookshelf speakers I had been using for the rear.
jamie  Jul 23, 2017
A
In my humble opinion, yes it gives more presence. Depends more on music preferences and intended use.
carlos  Nov 29, 2016
Q
I have a chance to get a really good deal on a tsi 400 and a tsi 500 bc they only have one of each. I have a Denon rec/amp running energy classic 5.1 surround speakers. Thinking ab replacing front speakers with this floor stand speakers bc such great deal. How would a tsi 400 paired with tsi 500 sound??? Uneven??
mancave dweller  Feb 25, 2016
2 answers
A
I am very happy with my tsi400's. They are durable, built to last. I shipped them overseas twice and they are performing like I just bought them. I have been using them with a Polk audio sub woofer when I watch movies and I have no complaints. My Denon avr400 providez 185watts per channel that make all the difference. As far as pairing them up with the tsi500's I would assume if the range of frequencies are almost the same then ok. I believe the cross over for both models are set to 2500 hz. Not sure if this will help you. If it were me I would pair speakers of the exact same make and model.
sean  Feb 27, 2016
A
Not sure how they would react together, I can say I have a set of tsi 400's paired with a Polk 10" sub, it shakes the walls, clear and crisp
richard  Feb 26, 2016
Q
Would 80w/ch be enough until I can afford a more powerful amp or should I buy the amp first?
randy  Dec 14, 2015
4 answers
A
Well Randy, if the rating of your amp is 80 watts RMS it will be fine, but if it's 80 watts peak and you want to crank it up so the neighbors can hear your choice music it might not sound so good. You didn't say what amp you had. Does it have a low THD? The speakers you chose are fantastic but the audio that comes out is the audio you put in. In short if you have an amp with great specs buy the speakers, if the amp is not so great, buy the amp first. I hope this answer will help you in making your decision. Best of luck Randy.
reynold  Dec 15, 2015
A
I'm driving these with an audiolab 8000a (60w) and they sound just fine... pretty good, actually... your 80w should be plenty...
gary  Dec 15, 2015
A
YEs, it is enough
allen  Dec 15, 2015
A
I've got a 500 watt Technics recvr thats 20 yrs old and can't turn it up more than 1/3 the way and they sound great. If yours is a 5/1 and you have good rear and cntr speakers 80 per should be plenty of power. My room is 25x25. Hope this helps
phil  Dec 14, 2015
Q
I just installed a Def Tech 1000/2000 for a 5.1 setup and am extremely pleased with the sound, particularly the 2000 center speaker. I was looking for clear definitive voice and conversations in movies and am again very pleased. Now I'm considering upgrading to 7.1, my current receiver supports it. Can anyone offer any suggestions pro or con in using these as my front speakers, and the Def Tech PM 1000's for the surrounds and rears? Also any comparison to the Polk Inf Primus P363's instead of these? Both would be in my price range. Again my foremost interest is in the distinct clarity of voices and conversations in movies with a lot of back round sounds. As you may have guessed, I'm getting older. Thanks for any help or suggestions.
william j  Oct 07, 2015
3 answers
A
I have these speakers as my front right/left and they are excellent. You will need a sonically matched center channel speaker to bring out the clear voices you demand. I have a Polk CS20 myself that I am very pleased with. I'm not sure if they are still available so get the one in the same Polk series that will match the front speakers. The Crutchfield folks will help you with that choice. Hope this helps.
roger  Oct 13, 2015
A
I am very pleased with these speakers, voices/conversations are much more clear/distinct than my old set up of the Bose cube speakers. As for getting older this is same reason I purchased these speakers, wife was getting on me about cranking the volume to hear the dialog. Now I no longer need to make my wife's ears bleed.
terry  Oct 07, 2015
A
I use the TSi400s in my living room as front speakers, and I love them. They offer way more sound than my relatively small room requires, but they are diverse enough to behave accordingly throwing her the entire volume range. They're great for everyday television, HD movies, and music as soft or loud as you wish to push them. I have always been impressed with the clarity, but that's such a unique opinion to each person's ear, I hate to say that you'll think so too. I would definitely recommend them based on my experience with them for close to two years now.
thomas  Oct 07, 2015
Q
HOW WOULD YOU COMPARE THESE POLKS' TO THE KLIPSCH REFERENCE MODELS TO MOVIES & MUSIC? HOW MUCH DID YOU PAY FOR THESE AS A PAIR?
delrey  Feb 11, 2014
5 answers
A
I am very pleased with the speakers I can't remember the exact cost that I paid but I would definitely recommend these in the advice that I received at the time from Crutchfield
jason  Feb 16, 2014
A
Not familiar with Klipsch. The speakers provide high quality sound at a reasonable price per pair. Design is first rate.I use Polk SB 50 for surround sound. Highly recommend if space is an issue. Sub-woofer a must
william  Feb 12, 2014
A
Sorry, don't remember the price and can't look it up right now. Can't compare either because I don't have the Klipsch to compare them too. We are very happy with them though. They are in large basement room for playing pool and listening to old vinyl. Working out great.
david lunn  Feb 11, 2014
A
Hi, if you are looking for just a home theater the tsi400 can do the job but if you are looking for a clarity, details, and a really good sound in movies and music you can try the klipsch. I just bought a used pair of reference 600 from a friend and now I'm thinking in buy another pair from Crutchfield. And I paid for the polks almost $600. If you have another question just let me know.
ruslan m  Feb 11, 2014
A
The Klipsch are also amazing speakers. I have been a long time fan of Polk. My car speakers as well as these TSi 400s down in my den for the 7.1 I have. Once I heard these at Best Buy, I ordered them from Crutchfield that day. The research Crutch offers is the best around.....but you do need to hear or see a product in person before buying right? These are the best bang for the money. I think I paid 500 for the pair? Maybe 225 a piece. I loved them so much I purchased the CS 20 to replace my center channel. The speakers have a rich sound. Lows are great while the high tones are superb. I have a 5 year old Sony amp pushing them. Pull the trigger and buy them. I researched them for 2 months before buying.
dave  Feb 11, 2014
Q
I'm looking for in-wall surrounds that are timbre matched to these (and the CS10 center). Would the RC85i's and RC80i's match?
rick  Dec 16, 2015
1 answer
A
The MC Series Polk speakers are timbre matched to their TSi series freestanding speakers. We have the MC80 & MC60 in in-ceiling and the MC85 in in-wall.
david  Dec 20, 2015 (Staff)
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