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Polk Monitor XT70

Monitor XT series

The Polk Monitor XT70 is a tower speaker with 8 Ω impedance and 89 dB sensitivity. Every receiver and amp 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
25–200 W
Polk's recommendation
Bass extension
35 Hz
How low it plays

$349 each (MSRP, September 2026)

Check it with your receiverSee it in your room
3D model of the Polk Monitor XT70

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 XT70 is 8 Ω, and the receiver or amp has to be rated for that.

  • Works

    Receivers and amps rated for 8 Ω

    29 in our catalogue

In its price range

All 29 receivers and amps we checked

Works29

Which center speaker matches it?

For the closest tonal match as voices move across the front, pick a center from the same Monitor XT series.

Plan your room around the Monitor XT70.

Draw your room in 3D, place the Monitor XT70 and see how they sound at your seat, with every connection to your receiver checked. Designing is free.

Build it in your room

Monitor XT70 specifications

Impedance
8 Ω
Sensitivity
89 dB
Low end
35 Hz
Drivers
1 × 25 mm, 2 × 165 mm, 2 × 203 mm
Size
9×40×13 in
Recommended amplifier power
25–200 W
Weight
15.88 kg (35 lb)
MSRP
$349 each (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 XT70

What receiver do I need for the Monitor XT70?
One rated for 8 Ω speakers. In our catalogue, Denon AVR-S570BT, Emotiva BasX A-700 and Yamaha RX500A are rated to drive it.
Is the Monitor XT70 4 ohm or 8 ohm?
The Polk Monitor XT70 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 XT70 need?
Polk recommends an amplifier of 25–200 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 XT70 go?
The Polk Monitor XT70 is rated down to 35 Hz. Below that, a subwoofer takes over; where the bass actually lands depends on your room's modes.
How big is the Monitor XT70?
The Polk Monitor XT70 measures 235 × 1026.6 × 317.9 mm (9.3 × 40.4 × 12.5 in, width × height × depth) and weighs 15.88 kg (35 lb).

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References

  1. Polk Monitor XT70: Spec sheet, denon.com, retrieved September 15, 2026
  2. Polk Monitor XT70: 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.