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Teufel Ultima 20 Mk4 two-way bookshelf pair review

The compact member of the Ultima range, which also supplies the centre and the active floorstanders in this catalogue — matching is the argument.

The bottom line A range speaker rather than a standalone one: bought because the centre and the floorstanders in this catalogue are its siblings.

Why the range matters more than this speaker does

Teufel supplies the Ultima centre and the Ultima 40 active floorstanders elsewhere in this catalogue. A system built inside that range shares voicing across the front three, which is what makes a sound moving across the screen stay the same sound.

The two-way design

One driver covers the bass and the midrange, and a tweeter takes the top. That is what a compact speaker is, and the compromise is in the midrange where a three-way design would give voices their own driver.

What Mk4 implies

Three revisions. A design that has been iterated has had its faults found, and while that is not a measurement it is a more meaningful signal than most of what listings contain.

What is not published

Sensitivity, impedance, frequency response. As with almost everything on this shelf apart from the Magnat.

Using them

On stands at ear height, crossed over to a subwoofer. As surrounds, wall-mounted slightly behind and above the seating, and matched to the front by staying inside the range.

Availability

On sale at around 220 € on the German, French, Italian and Spanish Amazon stores at the time of checking.

Listed but with no offer on the American and British Amazon stores — the reference exists there and nobody is currently selling it.

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 the Ultima range, alongside the centre speaker and floorstanders in this catalogue
  • A fourth-generation design, which means the tuning has been revised repeatedly rather than launched once
  • Passive, so it works with any amplifier

Compromises

  • No sensitivity, impedance or frequency response published
  • Two-way, so the woofer handles the midrange
  • Its matching advantage applies only inside the Ultima range

Specifications

TypePassive pair, two-way — stated
TuningBalanced, homogeneous — stated by the maker
GenerationMk4, fourth of the range — stated
SensitivityNot stated in this listing
ImpedanceNot stated in this listing
Amazon referenceB0FDG8QL1B (same reference on 6 Amazon marketplaces)
EAN4048945590046

Questions people actually ask

Can I use these as surrounds?

Yes, and it is a common use for a compact passive speaker. What matters is that they match the front three — which they will if the front three are also Ultima, and which is the whole reason to choose within a range.

What does "Mk4" tell me?

That the design has been revised three times. A range that has been iterated is one whose problems have been found, and it is a mild but real signal — more useful than a first-generation product with the same description.