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Polk Monitor XT90

Height speaker · Monitor XT series

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The Polk Monitor XT90 is an 8 Ω height speaker rated 89 dB, with a recommended 30–100 W amplifier. Of the 29 receivers and amps in our catalogue, 27 are rated to drive it and 2 are not recommended.

$119 a pair (MSRP, September 2026)

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Receivers and amplifiers for the Monitor XT90

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 (27)

Not recommended (2)

  • Denon AVR-S570BT

    Denon AVR-S570BT has no Dolby Atmos or DTS:X decoding for height speakers.

  • Denon AVR-S670H

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

Monitor XT90 specifications

Impedance8 Ω
Sensitivity89 dB
Low end94 Hz
Drivers1 × 102 mm
Size7×6×8 in
Recommended amplifier power30–100 W
Weight2.72 kg (6 lb)
MSRP$119 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 Monitor XT90

What receiver do I need for the Monitor XT90?
One rated for 8 Ω speakers. In our catalogue, Emotiva BasX A-700, Yamaha RX500A and Denon AVR-X1700H are rated to drive it. Denon AVR-S570BT and Denon AVR-S670H are not rated for it.
Is the Monitor XT90 4 ohm or 8 ohm?
The Polk Monitor XT90 has a nominal impedance of 8 Ω. Use a receiver or amplifier rated down to 8 Ω or lower.
How much power does the Monitor XT90 need?
Polk recommends an amplifier of 30–100 W. Its sensitivity is 89 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 Monitor XT90 go?
The Polk Monitor XT90 is rated down to 94 Hz. Below that, a subwoofer takes over; where the bass actually lands depends on your room's modes.
How big is the Monitor XT90?
The Polk Monitor XT90 measures 190.5 × 143.2 × 212.9 mm (7.5 × 5.6 × 8.4 in, width × height × depth) and weighs 2.72 kg (6 lb).

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References

  1. Polk Monitor XT90: Spec sheet, polkaudio.com, retrieved September 15, 2026
  2. Polk Monitor XT90: 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.