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KLH Model Three vs Polk Audio TSi100
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KLH Model Three

Passive Bookshelf | 46-20k Hz

KLH Model Three
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Polk TSi100

Passive Bookshelf | 61-24k Hz

Polk Audio TSi100
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KLH Model Three vs Polk TSi100 Speaker Comparison

In this review, we will be comparing Model Three and TSi100, two Passive Bookshelf speakers from KLH and Polk Audio. Let's have a brief look at the main features of KLH Model Three and Polk TSi100 first before getting into our more detailed comparison.

KLH Model Three Key Specs

  • 1" Tweeter
  • 8" Pulp-Paper Cone Woofer
  • 46-20k Hz Frequency Response
  • 88 dB Sensitivity
  • Impedance: 6ohms
  • Power Range:30-150watts
  • Weight:13.20kg
  • Dimensions (H x W x D): 482.0" x 12.25" x 10.5"( 482.0 x 311.0 x 267.0mm )

Polk TSi100 Key Specs

  • 1" Dome Tweeter
  • 5.25" Organic Fiber Woofer
  • 61-24k Hz Frequency Response
  • 89 dB Sensitivity
  • Impedance: 8ohms
  • Power Range:20-100watts
  • Weight:4.53kg
  • Dimensions (H x W x D): 279.4" x 7.0" x 10.1"( 279.4 x 177.8 x 259.0mm )

In the following sections, we will get into details in order to better understand how KLH Model Three and Polk TSi100 compares and hopefully end up with enough arguments to decide which one of these loudspeakers is the better choice for you.


**This post contains affiliate links and I will be compensated if you make a purchase after clicking through my links. As an Amazon Associate I earn from qualifying purchases.


Drivers

Both Model Three and TSi100 are 2-way speakers. Model Three features a 1" Aluminum Tweeter and 1 x 8" Pulp-Paper Cone Woofer with a Crossover frequency at 1600Hz. On the other hand, TSi100 features a 1" Dome Tweeter and 1 x 5.25" Organic Fiber Woofer with a Crossover frequency at 2500Hz.

Frequency Response

Model Three has a frequency range of 46-20k Hz whereas TSi100 has a frequency range of 61-24k Hz. With a minimum frequency of 46Hz, the Model Three can go significantly deeper on the low side and provide stronger bass compared to the TSi100's min frequency of 61Hz.

Below graphs depict how these two speakers compare with the max, min and average values of the Min and Max Frequencies of other speakers under Bookshelf class in our database.

Low Frequency

Bookshelf Speakers

KLH Model Three
Polk TSi100
Min
Average
Max
High Frequency

Bookshelf Speakers

KLH Model Three
Polk TSi100
Min
Average
Max

Impedance and Sensitivity

Model Three is a 6 ohms speaker compared to TSi100 which has a nominal impedance of 8 ohms. These two speakers also have different sensitivity levels. Model Three sensitivity is rated at 88 dB and TSi100's is at 89 dB. This 1 dB difference makes Polk TSi100 a more sensitive speaker compared to KLH Model Three, hence will play louder with the same amount of watts.

Sensitivity

Bookshelf Speakers

KLH Model Three
Polk TSi100
Min
Average
Max

Power Range

Model Three has a power range of 30-150 watts RMS whereas TSi100 has a power range of 20-100 watts.

Input Type and Bi-Amping / Bi-Wiring

Model Three features Pair of 5-way Binding Posts - Gold-Plated type posts and TSi100 has a Pair of 5-way Binding Posts - Gold-Plated type posts. None of these speakers feature bi-amping/bi-wiring.

KLH Model Three Terminals
KLH Model Three's Binding post terminals

Physical Specs

Size of a speaker can sometimes become an important decision factor due to space constraints or in some cases purely for esthetic reasons. In this section, We are going to compare KLH Model Three's and Polk TSi100's external dimensions. KLH Model Three has external dimensions of 482.0 x 311.0 x 267.0mm ( 19.0 x 12.25 x 10.5inch) whereas Polk TSi100 has external dimensions of 279.4 x 177.8 x 259.0mm ( 11.0 x 7.0 x 10.1inch) .

KLH Model Three is clearly the larger of the two speakers. Its body is 133.2mm wider, 202.6mm taller and 8mm deeper than Polk TSi100.



Reasons to choose KLH Model Three over Polk Audio TSi100
Max Input Power 150 watts vs 100 watts Handle more power from your amplifier
Woofer Size 8 inches vs 5.25 inches Larger woofer
Low Frequency Response 46 Hz vs 61 Hz Generates deeper bass
Reasons to choose Polk Audio TSi100 over KLH Model Three
Sensitivity 89 dB vs 88 dB Play louder with same amount of amplification power
Nominal Impedance 8 ohms vs 6 ohms Less selective with amplifiers
High Frequency Response 24k Hz vs 20k Hz Generates higher frequency
Mounting Bracket Yes vs No Allows mounting on walls
Height 279mm vs 482mm Easier to fit in smaller spaces
Width 177mm vs 311mm Easier to fit in smaller spaces
Depth 259mm vs 267mm Easier to fit in smaller spaces

KLH Model Three vs Polk TSi100 Specs Table
Detailed comparison of specifications
General KLH Model Three Polk Audio TSi100
Brand KLH Polk Audio
Speaker Type Stand-mount speaker Bookshelf speakers
Power Range 30-150 watts 20-100 watts
Sensitivity 88 dB 89 dB
Impedance 6 ohms 8 ohms
Impedance 3.7 ohms n/a
Frequency Response 46-20k Hz 61-24k Hz
Drivers
Woofer Quantity 1 1
Woofer Size 8" 5.25"
Woofer Composition Pulp-Paper Cone Organic Fiber
Woofer Surround Material Rubber Butyl Rubber
Tweeter Size 1" 1"
Tweeter Type n/a Dome
Aimable Tweeter No No
Midrange Driver No No
Crossover Frequency 1600Hz 2500Hz
Firing Direction n/a rear
Physical Specs
Height 482.0mm (19") 279.4mm (11")
Width 311.0mm (12.2") 177.8mm (7")
Depth 267.0mm (10.5") 259.0mm (10.2")
Weight 13.20kg (29lbs) 4.53kg (10lbs)
Enclosure Acoustic Suspension Bass Reflex
Finish MDF/Wood Veneer Wood-grain vinyl
Available Colors English Walnut, West African Mahogany Black, Cherry
Mounting Bracket No Keyhole
Recommended Stand Height n/a 16-30"
Grille Yes Yes
Moisture Resistancy No No
Connections
Biamp Inputs No No
Other
Parts Warranty 10 Years 5 Years
Labor Warranty 10 Years 5 Years


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