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  1. Home
  2. Polk Audio Speakers
  3. Polk TSi100 vs Polk TSi CS10

Polk TSi100 vs Polk TSi CS10 Comparison

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Speaker to replace
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Polk TSi100

Passive Bookshelf | 61-24k Hz

Polk Audio TSi100
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Polk TSi CS10

Passive Center Channel | 63-24k Hz

Polk Audio TSi CS10
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Polk TSi100 Polk TSi100
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Polk TSi CS10 Polk TSi CS10
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Polk TSi100
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Polk TSi CS10
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Polk TSi100 vs Polk TSi CS10 Speaker Comparison

In this review, we will be comparing two different types of speakers by Polk Audio. Polk Audio TSi100 is a Bookshelf speaker whereas the TSi CS10 is a Center Channel speaker.

Let's have a brief look at the main features of Polk TSi100 and Polk TSi CS10 first before getting into our more detailed comparison.

Key SpecsPolk TSi100Polk TSi CS10
BrandPolk Audio
United States · founded 1972
Polk Audio
United States · founded 1972
Design2-way2-way
Tweeter1" Dome1" Dynamic Balance
Woofer5.25" Organic Fiber2 x 5.25" bi-laminate organic fiber cone
Frequency response61-24k Hz63-24k Hz
Sensitivity89 dB91 dB
Impedance8 ohms8 ohms
Power range20-100 watts20-125 watts
Weight4.53kg / 10lbs7.27kg / 16lbs
Dimensions (H x W x D)11.0" x 7.0" x 10.1"
279.4 x 177.8 x 259.0mm
6-9/16" x 20-1/16" x 9-15/16"
167.0 x 510.0 x 253.0mm

TSi100 and TSi CS10 are members of Polk Audio's TSi series of speakers. Below you can find the loudspeakers from this series.

Polk Audio TSi Series History
Model Body Frequency SensitivityImpedance Woofer
Polk TSi100
Bookshelf 61-24k Hz 89 dB8Ω 1 x 5.25"
Polk TSi400
  
Floor-standing 44-24k Hz 91 dB8Ω 3 x 5.25"
Polk TSi200
  
Bookshelf 50-24k Hz 89 dB8Ω 2 x 5.25"
Polk TSi300
  
Floor-standing 47-24k Hz 90 dB8Ω 2 x 5.25"
Polk TSi CS10
Center Channel 63-24k Hz 91 dB8Ω 2 x 5.25"

What size room are the Polk TSi100 and Polk TSi CS10 speakers good for?

The size of the room in which you are planning to use these loudspeakers is an important decision factor. Here we have compared their suitability to various sizes of environments considering their size and max power parameters:

Listening Environment* Polk TSi100 Polk TSi CS10
Near-field Average Poor
Small Room Good Average
Mid-size Room Average Good
Large Room Poor Average
Very Large Room Bad Poor

(* Approximate Room sizes: Small < 100sq. ft / 9 m2, Mid-size: 100-220 sq. ft / 9-20 m2, Large 220-400 sq. ft / 20-36 m2, Very Large: > 400 sq. ft / 36 m2. Average Floor Height: 9" / 2.7m. Typical room sizes differ from country to country, and the actual listening experience changes depending on floor height, room shape, surface materials, listening position, speaker locations, etc.)

The sections below take each area in turn: drivers, frequency response, physical size and what you get in the box.


Drivers

Both TSi100 and TSi CS10 are 2-way speakers.

Tweeter - 1 inchWoofer - 5.25 inch
Polk TSi100
Woofer - 5.25 inchTweeter - 1 inchWoofer - 5.25 inch
Polk TSi CS10

TweeterWoofer

Front view, drawn to scale - cabinets and drivers share one scale, so sizes are directly comparable. Hover a driver for its size.

Driver Polk TSi100 Polk TSi CS10
Driver Setup 2-way 2-way
Tweeter 1-inch 1-inch
Midrange - -
Woofer 1 x 5.25-inch 2 x 5.25-inch

TSi100 features a 1" Dome Tweeter and 1 x 5.25" Organic Fiber Woofer with a Crossover frequency at 2500Hz. On the other hand, the TSi CS10 features a 1" silk dome Dynamic Balance Tweeter and 2 x 5.25" bi-laminate organic fiber cone Woofer.

Frequency Response

TSi100 has a frequency range of 61-24k Hz whereas TSi CS10 has a frequency range of 63-24k Hz. With a minimum frequency of 61Hz, the TSi100 can go slightly deeper then the TSi CS10's min frequency of 63Hz.

The graph below depicts how these two speakers compare with the max, min and average Low Frequency values of other speakers in the Bookshelf class in our database.

Low Frequency

Bookshelf Speakers

TSi100
TSi CS10
Min
Average
Median

Neither pair reaches down to 20Hz, the usual definition of full-range, which is normal for speakers of this size. If you want the bottom octave for movies or bass-heavy music, add a subwoofer to whichever you choose. Visit our Powered Subwoofers section to find out more about the available options.

Impedance and Sensitivity

TSi100 and TSi CS10 have the same Impedance of 8 ohms but where they differ is the sensitivity levels. TSi100 sensitivity is rated at 89 dB and the TSi CS10's is at 91 dB. This 2 dB difference makes the Polk TSi CS10 a more sensitive speaker compared to Polk TSi100, hence will play louder with the same amount of watts.

Sensitivity

Bookshelf Speakers

TSi100
TSi CS10
Min
Average
Median

Power Range

Power range is the range of input power in watts RMS that a loudspeaker is designed to handle. Staying within that range gives nominal performance; driving the speaker beyond its maximum wattage can damage it.

TSi CS10 can handle a max power of 125 watts RMS, whereas TSi100 has a max power handling value of 100 watts RMS, 25 watts less than the TSi CS10.

Note that higher power handling does not make a speaker louder: that depends mainly on sensitivity and impedance. The calculator below shows how loud each of these actually plays on a real amplifier.

Which plays louder on your amplifier?

Starting with a popular amplifier - change it to the one you own, or any you are considering, and watch both numbers move.

Polk TSi100
 
Polk TSi CS10
 

Input Type and Bi-Amping / Bi-Wiring

TSi100 features 5-Way post type posts and TSi CS10 has a 5-Way post type posts. None of these speakers feature bi-amping/bi-wiring.

Cabinet Type and Port Position

Both TSi100 and TSi CS10 have rear firing ports. Rear ported speakers generally need more room between the backside of the speaker and the wall compared to sealed and front/bottom ported speakers. Placing the speakers too close to the walls may cause the bass to sound boomy.

If you are limited in space and can't get the speakers away from the backwall, check our Speakers with Front Firing Ports page.

Physical Specs

The size of a speaker can sometimes be an important decision factor due to space constraints or in some cases purely for esthetic reasons. In this section, we are going to compare Polk TSi100's and Polk TSi CS10's external dimensions. Polk TSi100 has external dimensions of 279.4 x 177.8 x 259.0mm (11.0 x 7.0 x 10.1inch) whereas Polk TSi CS10 has external dimensions of 167.0 x 510.0 x 253.0mm (6-9/16 x 20-1/16 x 9-15/16inch).

Polk TSi CS10 is 112.4mm shorter and 6mm less deeper than Polk TSi100 but it is also 332.2mm wider.

Base Surface Area Comparison
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited. The base surface area of the Polk TSi100 is approximately 460.5cm2 / 71.4inch2 and base area of the Polk TSi CS10 is approximately 1290.3cm2 / 200.0inch2. The TSi100 requires 64% less surface area than the TSi CS10 which gives it a small advantage on placement in tight spaces.

What's in the Box of Polk TSi100?

Here are the items that are included inside the box of TSi100:
  • 2 Black bookshelf speakers
  • Detachable cloth grille (installed)
  • 8 Self-adhesive rubber feet
  • Owner's Manual
  • Wall-Mount template
  • Online registration sheet
  • Polk Audio product brochure

What's in the Box of Polk TSi CS10?

Here are the items that come with the TSi CS10:
  • Black center-channel speaker (removable cloth grille)
  • 4 Self-adhesive rubber feet
  • Owners Manual
  • Online registration sheet
  • Polk Audio product brochure


Reasons to choose Polk Audio TSi100 over Polk Audio TSi CS10

Low Frequency Response 61 Hz vs 63 Hz Generates deeper bass
Mounting Bracket Yes vs No Allows mounting on walls
Base Surface Area 460cm2 vs 1290cm2 Takes less floor space

Reasons to choose Polk Audio TSi CS10 over Polk Audio TSi100

Max Input Power 125 watts vs 100 watts Handle more power from your amplifier
Sensitivity 91 dB vs 89 dB Play louder with same amount of amplification power
Number of Woofers 2 vs 1 More woofers
Height 167mm vs 279mm Easier to fit in smaller spaces
Price per pair* 119USD vs 149USD costs less (*prices may change depending on the seller, location and time)

Polk TSi100 vs Polk TSi CS10 Specs Table

Detailed comparison of specifications
General Polk Audio TSi100 Polk Audio TSi CS10
Brand Polk Audio Polk Audio
Speaker Type Bookshelf speakers Center channel speaker (Black)
Power Range 20-100 watts 20-125 watts
Sensitivity 89 dB 91 dB
Impedance 8 ohms 8 ohms
Frequency Response 61-24k Hz 63-24k Hz
Drivers
Woofer Quantity 1 2
Woofer Size 5.25" 5.25"
Woofer Composition Organic Fiber bi-laminate organic fiber cone
Woofer Surround Material Butyl Rubber n/a
Tweeter Size 1" 1"
Tweeter Type Dome Dynamic Balance
Aimable Tweeter No No
Midrange Driver No No
Crossover Frequency 2500Hz n/a
Firing Direction rear rear
Physical Specs
Height 279.4mm (11") 167.0mm (6.6")
Width 177.8mm (7") 510.0mm (20.1")
Depth 259.0mm (10.2") 253.0mm (10")
Weight 4.53kg (10lbs) 7.27kg (16lbs)
Enclosure Bass Reflex Bass Reflex
Finish Wood-grain vinyl n/a
Available Colors Black, Cherry Black
Mounting Bracket Keyhole No
Recommended Stand Height 16-30" n/a
Grille Yes Yes
Moisture Resistancy No No
Connections
Biamp Inputs No n/a
Other
Parts Warranty 5 Years 5 Years
Labor Warranty 5 Years 5 Years

Verdict

Siblings in Polk Audio's TSi series, so they share a family sound. It comes down to size, output and price.

AreaBetterWhy
Bassevenly matchedMuch the same reach (61Hz vs 63Hz).
Amplifier needsBPolk TSi CS10 is more sensitive (91dB vs 89dB), so it goes louder on the same amplifier.
HeadroomBPolk TSi CS10 takes more power (125W vs 100W) - more in hand in a big room.
SizedependsPolk TSi100 is easier to place; Polk TSi CS10 is bigger, which usually goes with fuller bass. Your room decides.
TypedependsA Passive Bookshelf against a Passive Center Channel - a different job rather than a better one.
PriceBPolk TSi CS10 is cheaper - $119 against $149, about 20% less.

A Polk TSi100  B Polk TSi CS10
depends neither is better in the abstract - it turns on your room, your system or how you will use them. Only specs published for both speakers are judged; anything missing on either side is left out rather than guessed.

Which should you choose?

Polk TSi CS10 is the easier recommendation: it leads on most of the measured areas and costs less. Take Polk TSi100 if its size, looks or fit in your room suit you better. Match it to your room: we rate Polk TSi100 the better fit for near-field listening and a small room, and Polk TSi CS10 for a mid-size room and a large room. In a large or open-plan room, Polk TSi CS10 has the cabinet volume to fill it more easily; in a small room, near a wall or at desk distance, Polk TSi100 is the easier speaker to get right.

And remember what a spec sheet cannot show: how each looks in your room and whether the finish suits it, what dealer support and warranty are like where you live, and how they actually sound to you. If you can hear them first - ideally with your own music - that will tell you more than any number above.


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