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Polk Monitor XT90

Monitor XT series

The Polk Monitor XT90 is a height speaker with 8 Ω impedance and 89 dB sensitivity. 27 of the 29 receivers and amps in our catalogue can drive it.

Impedance
8 Ω
What the receiver must be rated for
Sensitivity
89 dB
Higher is louder per watt
Amplifier power
30–100 W
Polk's recommendation
Bass extension
94 Hz
How low it plays

$119 a pair (MSRP, September 2026)

Check it with your receiverSee it in your room
3D model of the Polk Monitor XT90

Drag to turn it. Built from the published dimensions, not a photo.

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Which receivers and amps can drive it?

What decides it is impedance: the Monitor XT90 is 8 Ω, and the receiver or amp has to be rated for that, and as a height speaker it needs Dolby Atmos or DTS:X decoding.

  • Works

    Receivers and amps rated for 8 Ω

    27 in our catalogue

  • Not recommended

    Receivers without Dolby Atmos or DTS:X

    A height speaker needs one that decodes them.

    2 in our catalogue

In its price range

All 29 receivers and amps we checked

Works27

Not recommended2

  • 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.

Plan your room around the Monitor XT90.

Draw your room in 3D, place the Monitor XT90 and see how they sound at your seat, with every connection to your receiver checked. Designing is free.

Build it in your room

Monitor XT90 specifications

Impedance
8 Ω
Sensitivity
89 dB
Low end
94 Hz
Drivers
1 × 102 mm
Size
7×6×8 in
Recommended amplifier power
30–100 W
Weight
2.72 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.