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Polk Audio Signature Elite ES20
A large Signature Elite bookshelf speaker with a 6.5-inch woofer, Power Port bass and Hi-Res Audio certification.
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The verdict
The maker's numbers describe a full-sized, fairly easy-to-drive bookshelf speaker, with 86 dB sensitivity and 20 to 125 watts recommended. Because no review was cited here, treat sound claims as Polk's own and compare with a review first.
The ES20 is the larger of Polk's two Signature Elite bookshelf speakers, with a 1-inch Terylene dome tweeter and a 6.5-inch Dynamic Balance polypropylene woofer. Polk's Power Port design is meant to smooth airflow from the port, and the speaker is Hi-Res Audio certified. Polk lists a 41Hz to 40kHz response and compatibility with 4 and 8 ohm outputs. It is sold as a pair and can be wall mounted. No independent review was read for this entry.
Strengths
- Polk states a response of 41Hz to 40kHz and Hi-Res Audio certification.
- Compatible with 4 and 8 ohm amplifier outputs.
- Can be wall mounted, and has a magnetic grille and gold-plated five-way binding posts.
Weak spots
- No independent review of this model was read for this entry.
- It is a fairly large cabinet for a bookshelf speaker.
- Sensitivity of 86 dB is moderate, so it benefits from a decent amplifier.
Great for
- Budget home theater fronts or stereo with a receiver
Skip if
- Anyone wanting built-in amplification or wireless streaming
Full specifications
From the manufacturer unless noted. Shown for this model.
Sound
- Type
- Bookshelf
- Sold as
- Pair
- Sensitivity
- 86 dB
- Low-frequency extension
- 41 Hz
- High-frequency extension
- 40,000 Hz
- Recommended amplifier power
- 20-125 W
- Powered (built-in amplifier)
- No
Size & placement
- Width
- 216 mm
- Height
- 376 mm
- Depth
- 351 mm
Primary source: polkaudio.com
Setup notes
- Passive speaker with a single pair of five-way binding posts; needs an external amplifier or AV receiver.
Questions
Does the ES20 work with 4 ohm receivers?
Polk says it is compatible with both 4 and 8 ohm outputs, so it is rated for common receivers and amplifiers.
Is it sold as a pair?
Yes. Polk's listing is for a pair.
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Sources for this page
Last reviewed Nov 9, 2026. Spotted an error? Tell us.