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Polk Audio Monitor XT70 floorstanding speaker review

The largest speaker in the Monitor XT range, which also contains the matching centre and height module in this catalogue — a system rather than a speaker.

The bottom line The anchor of a matched system: the reason to buy it is the three other speakers in this catalogue that go with it.

The argument is the range, not the speaker

The Monitor XT line in this catalogue includes this floorstander, the XT35 centre and the XT90 height module. Bought together, the front three share drivers and voicing, and a sound moving across the screen stays the same sound. That coherence is what a mixed system cannot have at any price.

What is stated

The Terylene tweeter and its position at the top of the range. Polk describes materials and hierarchy rather than publishing measurements, which is the house style here and is less useful than Canton’s approach elsewhere in this catalogue.

What is not stated

Sensitivity, impedance, frequency response with a tolerance. Those three decide amplifier matching and room behaviour, and none is in this listing.

The room question

A floorstander is a large cabinet that generally wants space behind it. Where the port is — front or rear — decides how much, and the listing does not say. In a small room with the speakers against a wall, that is the specification worth chasing before buying.

Where to start

These, and a receiver. The centre and the height modules are the next two steps, and buying them from the same range is the whole point.

Availability

On sale from 313 € to 389 € on the German, American, British, French, Italian and Spanish Amazon stores at the time of checking.

The Spanish Amazon listing is priced above 1.6× the cheapest store, which is normally a reshipping offer rather than a local price; it is left out of the range above.

Prices and availability are what Keepa reported on the date this page was updated; both move.

Prices quoted in this text were read on 4 September 2026. The live price is at the top of the page.

What we like, and what we don't

Strengths

  • Part of a complete range — centre, height module and surrounds all match
  • The Terylene tweeter is shared across the range, which is what makes the front three sound alike
  • Passive, so the amplifier can be chosen and changed independently

Compromises

  • No sensitivity, impedance or frequency response with tolerance published
  • Its matching advantage applies only within the Monitor XT range
  • A floorstander needs distance from the wall that a small room may not have

Specifications

Position in rangeMost powerful in the Monitor XT series — stated
TweeterTerylene dome, stated as reaching high frequencies for Hi-Res
MatchingSame range as the XT35 centre and XT90 height module
SensitivityNot stated in this listing
Frequency responseNot stated with a tolerance in this listing
Amazon referenceB09BMX4QLD (same reference on 6 Amazon marketplaces)
EAN0747192133351

Questions people actually ask

Do I need the whole range?

Not to start. A pair of these with any receiver is a good stereo system. What the range buys is a coherent path: add the XT35 centre and the XT90 height modules later and the whole front behaves as one, which is not true of a mixed system.

How far from the wall?

The listing does not state the port position, which is the figure that decides. As a rule, a floorstander wants some distance behind it; if the room forces it against a wall, expect fuller and less controlled bass, and check whether the maker supplies port bungs.