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Polk Signature Elite ES90

Height speaker · Signature Elite series

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The Polk Signature Elite ES90 is a 4 Ω height speaker rated 85 dB, with a recommended 20–150 W amplifier. Of the 29 receivers and amps in our catalogue, 14 are rated to drive it, 13 work after an impedance setting change and 2 are not recommended.

$449 a pair (MSRP, September 2026)

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Receivers and amplifiers for the Signature Elite ES90

Each pairing is checked by our compatibility engine: the speaker's impedance against the amplifier's rated minimum, and height decoding for height speakers. Whether it plays loud enough depends on how far you sit, which the 3D editor works out for your room.

Rated to drive it (14)

Works after a setting change (13)

Set the receiver to 4 Ω in its speaker setup.

Not recommended (2)

  • Denon AVR-S570BT

    Polk Signature Elite ES90 is 4 Ω; Denon AVR-S570BT supports 6 Ω and up.

  • Denon AVR-S670H

    Denon AVR-S670H has no Dolby Atmos or DTS:X decoding for height speakers.

Signature Elite ES90 specifications

Impedance4 Ω
Sensitivity85 dB
Low end142 Hz
Drivers1 × 25 mm, 1 × 133 mm
Size7×7×12 in
Recommended amplifier power20–150 W
Weight3.76 kg (8.3 lb)
MSRP$449 a pair (MSRP, September 2026)

Every value comes from the sources under References, last retrieved September 15, 2026. To check it against the rest of your system, use the compatibility checker.

Questions about the Signature Elite ES90

What receiver do I need for the Signature Elite ES90?
One rated for 4 Ω speakers. In our catalogue, Emotiva BasX A-700, Monoprice M7100X and Onkyo TX-NR6100 are rated to drive it. Yamaha RX500A, Denon AVR-X1700H and Denon AVR-S770H work once the receiver's impedance setting is changed to 4 Ω. Denon AVR-S570BT and Denon AVR-S670H are not rated for it.
Is the Signature Elite ES90 4 ohm or 8 ohm?
The Polk Signature Elite ES90 has a nominal impedance of 4 Ω. Use a receiver or amplifier rated down to 4 Ω or lower.
How much power does the Signature Elite ES90 need?
Polk recommends an amplifier of 20–150 W. Its sensitivity is 85 dB. How much of that you use depends on how far you sit and how loud you listen, which the 3D editor works out for your room.
How low does the Signature Elite ES90 go?
The Polk Signature Elite ES90 is rated down to 142 Hz. Below that, a subwoofer takes over; where the bass actually lands depends on your room's modes.
How big is the Signature Elite ES90?
The Polk Signature Elite ES90 measures 186 × 189 × 306 mm (7.3 × 7.4 × 12 in, width × height × depth) and weighs 3.76 kg (8.3 lb).

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References

  1. Polk Signature Elite ES90: Spec sheet, polkaudio.com, retrieved September 15, 2026
  2. Polk Signature Elite ES90: Manufacturer product page, polkaudio.com, retrieved September 15, 2026

Brand names are trademarks of their owners. Not affiliated with or endorsed by any manufacturer. 3D models are our approximations. Prices are manufacturer list prices (MSRP) as of the month shown. How we earn from buy links: affiliate disclosure.