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Polk Audio Monitor XT20 Review
Polk Audio Monitor XT20

Main Features

  • 1" Soft-Dome Tweeter
  • 6.5" Bi-laminate paper Woofer
  • 38-40k Hz Frequency Response
  • 87 dB Sensitivity
  • Impedance: 8ohms
  • Power Range:30-200watts
  • Weight:11.99 lbs
  • Dimensions (H x W x D): 13-1/16" x 7-9/16" x 11-1/16"
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Polk XT20 Review

Polk Audio Monitor XT20 is a 2-way Passive Bass Reflex Bookshelf speaker by Polk Audio. It features a 1" Soft-Dome Tweeter and 1 x 6.5" Bi-laminate paper Woofer. The speaker has a frequency range of 38-40k Hz and a sensitivity of 87 dB. Polk XT20 has an MSRP of 299$ per pair.

What size of room is the Polk XT20 speaker good for?

The size of the room that you are planning to use the Polk XT20 is an important decision factor. Here we have evaluated its suitability to various size of environments considering its size and max power parameters:

Listening Environment Suitability
Near-fieldPoor
Small RoomAverage
Mid-size RoomGood
Large RoomAverage
Very Large RoomPoor

What are the speakers in Polk Audio's Monitor XT Series?

XT20 is a member of Polk Audio's Monitor XT series of Passive speakers. Below you can see the main specs of these speakers.

Polk Audio Monitor XT Series Speakers
Model Frequency SensitivityImpedance Woofer
Polk XT15
Compare
48-40k Hz 86 dB8Ω 1 x 5.25"
Polk XT60
Compare
38-40k Hz 86 dB8Ω 1 x 6.5"
Polk XT20
38-40k Hz 87 dB8Ω 1 x 6.5"
Polk XT70
Compare
35-40k Hz 86 dB8Ω 2 x 6.5"


**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.

What is the Frequency Response of the Polk XT20 speaker?

Polk XT20 has a Frequency response range of 38-40k Hz at ±3dB and Power Range of 30-200 watts. At a minimum frequency of 38 Hz, XT20 will provide a deep bass that will probably satisfy majority of listeners, especially for music. Movie lovers and music listeners who likes to experience a full range response will still benefit from use of a subwooofer though.

To focus on the subwoofers that are in a similar price range with Polk XT20, check the Powered Subwoofers under $300. Alternatively, find the Full list of Powered Subwoofers regardless from the price.
Here we have a comparison of how XT20's Low and High frequency values compared with the average, max and min Low and High frequency values in its class.
Low Frequency
Bookshelf Speakers
Polk XT20
Min
Average
Max
High Frequency
Bookshelf Speakers
Polk XT20
Min
Average
Max


What is the Impedance and Sensitivity of the Polk XT20? Is it an easy to drive speaker?

Polk XT20's nominal impedance level is 8 ohms and has a sensitivity of 87 dB.

Sensitivity
Bookshelf Speakers
Polk XT20
Min
Average
Max

8 Ohms is pretty much the standard nominal impedance amongst stereo speakers and amplifiers so Polk Audio Monitor XT20 is not considered a difficult to drive speaker from nominal Impedance perspective.

Sensitivity

With a sensitivity level of only 87 dB, Polk Audio Monitor XT20 is a difficult to drive speaker from Sensitivity perspective, make sure to choose an amplifier with high output if you like listening your music at high volume levels. You may especially have hard time using Tube amplifiers which are traditionally very low power compared to Class A/B or Class D speakers.

Check our Integrated Amplifiers page to find an amplifier to pair with the Polk XT20.

Input Type

XT20 features 5-Way post type connectors. Bi-amping and Bi-wiring is not possible.

Polk XT20 External Dimensions and Weight

Polk XT20 has external dimensions of (Height x Width x Depth) 13-1/16 x 7-9/16 x 11-1/16inch (332.0 x 193.0 x 281.0mm ).

Base Surface Area
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited. The base area of Polk XT20 is approximately 542.3cm2 / 84.1inch2.

To have a better perspective on the real life size of Polk XT20, let's compare it with a standard size Compact Disc which has a diameter of 4.7inch (120mm).

Polk XT20 Real Life Body Size Comparison
Polk XT20 Speaker Size Compared to a Compact Disc

Here we place the Polk XT20 virtually next to a standard width amplifier and turntable on a BDI Octave Media Cabinet to get a better idea about the size.

Polk XT20 placed next to an amplifier and turntable
Polk XT20 Speaker next to an amplifier and turntable

Weight

The Polk XT20 weighs 5.45kg / 12lbs (per piece). Here is a comparison of how XT20's weight compared with the average, max and min weights in its class.

Weight
All Bookshelf Speakers
Polk XT20
Min
Average
Max
Weight
Bookshelf Speakers under $300
Polk XT20
Min
Average
Max

Cabinet type and Materials

Polk XT20 has a Bass Reflex type cabinet and MDF, Vinyl finish. Bass Reflex type loudspeakers (aka Ported, Vented or Reflex Port) have enclosures that uses a port, hole or vent cut into the cabinet. Ported designs are generally more efficient than the Sealed designs.

Speaker Feet

Polk XT20 comes with the parts below which you can use to secure your loudspeaker on the surface that you are putting on:
  • 4 Outrigger feet (pre-installed)
  • 4 Spikes (pre-installed)
  • 4 Isolation pucks
  • It is always recommended to use some kind of feet under all types of speakers. Besides limiting the movement of the speakers, it also compensates for non-flat surfaces and limits the contact surface area of the speaker. Rubber based feet also help isolating the vibrations within certain frequency ranges.

    Available colors

    Polk XT20 is available in Black.

    Wall Mounting

    XT20 doesn't sport any built-in mounting bracket so you need an external structure to mount on walls.

    Does the Polk XT20 come with a Grille?

    XT20 comes with grilles. The purpose of the grille is to protect the delicate driver elements from external impacts while still allowing the sound pass as clearly as possible.

    What's in the Box of Polk XT20?

    Here are the items that are included inside the box of XT20:
  • 2 Bookshelf loudspeakers
  • 2 Grilles (attached)
  • 8 Self-adhesive rubber feet
  • Owners Manual
  • Online Product Registration
  • Warranty

    5 Years of parts warranty and 5 Years of labor warranty is generally provided by the manufacturer.

    Polk Audio Monitor XT20 Alternatives in Passive Bookshelf Speakers
    Model Type Sensitivity Impedance Frequency
    Klipsch R-51M
    Compare
    2-way 93 dB 8 ohms 62-21k Hz
    ELAC Debut 2.0 B6.2
    Compare
    2-way 87 dB 6 ohms 44-35k Hz
    Klipsch RP-400M
    Compare
    2-way 93 dB 8 ohms 52-25k Hz
    Jamo S 801
    Compare
    2-way 85 dB 8 ohms 76-26k Hz
    Klipsch RP-600M
    Compare
    2-way 96 dB 8 ohms 45-25k Hz
    Polk TSi100
    Compare
    2-way 89 dB 8 ohms 61-24k Hz
    Klipsch R-41M
    Compare
    2-way 90 dB 8 ohms 68-21k Hz
    Polk ES20
    Compare
    2-way 86 dB 8 ohms 41-40k Hz
    Emotiva Airmotiv B1+
    Compare
    2-way 86 dB 8 ohms 48 Hz – 28 kHz
    Sony SS-CS5
    Compare
    3-way 87 dB 6 ohms 53-50k Hz
    Frequently Asked Questions about Polk Audio Monitor XT20
    What is the External Dimensions of Polk Audio Monitor XT20
    What is the Speaker Sensitivity of Polk Audio Monitor XT20
    is the Polk Audio Monitor XT20 an easy to drive speaker?


    Polk XT20 Detailed Specifications

    General
    BrandPolk Audio
    Full Model NamePolk Audio Monitor XT20
    Speaker Type2-way Bookshelf
    Power Range30-200 watts
    Sensitivity87 dB
    Impedance8 ohms
    Frequency Response38-40k Hz
    DRIVERS
    Woofer Size6.5-inch
    Woofer CompositionBi-laminate paper
    Woofer SurroundRubber
    Tweeter Size1-inch
    Tweeter TypeSoft-Dome

    CONNECTIONS
    Connector Type5-Way post
    Biamp InputsNo
    PHYSICAL SPECS
    Height332.0mm ( 13-1/16-inch)
    Width193.0mm ( 7-9/16-inch)
    Depth281.0mm ( 11-1/16-inch)
    Height332.0mm ( 13-1/16-inch)
    Weight5.45kg ( 11.99 lbs)
    EnclosureBass Reflex
    FinishMDF, Vinyl
    Available ColorsBlack
    Mounting BracketNo
    Recommended Stand Height24-28
    GrilleYes
    Moisture ResistanceNo
    OTHER
    Handheld RemoteNo
    Parts Warranty5 Years
    Labor Warranty5 Years
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