Peak Consult Sonora front and rear
The Danish luxury manufacturer's range is small and not at all cheap. The Sonora with its pair price of 25,000 euros is the entry-level model, but it completely enchanted us (Photo: H. Biermann)

Test Peak Consult Sonora: in the realm of the most beautiful mids

The Peak Consult Sonora is just a 2-way design in floor standing speaker format. But everything about it is so consistently realized that its basic virtues make it one of the best that LowBeats has ever played. The story starts back in 1996 and I’m probably doing company founder Per Kristoffersen an injustice by not starting this review until 2021. That’s when Wilfried Ehrenholz and his partner Lennart Asbjørn joined the Danish loudspeaker manufacturer Peak Audio, which – it’s fair to say – had been largely under the radar of audiophile perception for 25 years. Ehrenholz is no stranger to the industry: He was a co-founder and long the sole owner of Dynaudio until he sold the flagship company to the Goertek Group in 2014. In 2018, he also left the last shares to the Chinese and from then on, he could have done a marvelous job as a grandfather…

But he didn’t. He saw this small company with its uniquely consistent housings and huge untapped potential – and his fingers itched again. So he took over the financially ailing company, kept the former owner Per Kristoffersen on as production manager, gradually introduced professional structures and turned Peak Audio into the new/old company Peak Consult.

And Ehrenholz was not alone: in addition to Jan Geschke, probably the best-known advertiser in the European hi-fi scene, Ehrenholz was also able to recruit developer Karl-Heinz Fink as a consultant to take the existing models to an even higher level in terms of sound quality.

Ehrenholz and Fink
Wilfried Ehrenholz (left) and Karl-Heinz Fink at the presentation of the Peak Consult Dragon Legend MK2 in the listening room at Fink Audio Consulting in Essen (Photo: H. Biermann)

But while awareness of the new Danish luxury brand is only gradually growing, another goal has already been achieved: With the huge Dragon Legend MK2 (which was already presented at the HIGH END 2023 ), Ehrenholz and Fink have already set new sound standards. And the new edition of the Sonora, the entry-level model at Peak Consult, was so convincing that it makes an excellent ambassador for the sonic ideals of Mr. Ehrenholz and Mr. Fink…

What’s special about the Peak Consult Sonora

One is involuntarily reminded of Dynaudio. What has always characterized Dynaudio was the outstandingly good harmony of the drivers – especially in their compact speakers with a large dome tweeter and 17 cm (43,18 in) bass-midrange driver. This is exactly what we find here: The Sonora is a 2-way design with very similar components – except that neither the tweeter (Scan-Speak) nor the bass-midrange drivers (AudioTechnoloy) are from Dynaudio and that instead of a bass reflex port, a 20 cm (50,8 in) passive cone at the rear provides more bass boost.

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Peak Consult Sonora Tweeter
The 1-inch tweeter D3004/662000 is the best that the specialist Scan-Speak has in the range of high-damping fabric dome tweeters (Photo: H. Biermann)
Peak Consult Sonora TMT
The mid-bass driver from AudioTechnology was not only labeled on the Dustcap for Peak Consult, but also adapted precisely to the requirements of the Sonora enclosure (Photo: Peak Consult)
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Both the tweeter and the bass-midrange driver are among the best that speaker technology has achieved to date. And yet Karl-Heinz Fink (who develops the drivers himself for other brands) was still able to introduce decisive distortion-reducing improvements at various points.

However, the decisive factor in the Danish transducers was and is the mechanics of the cabinets. There are clearly masters at work here, which becomes clear as soon as you unpack the speaker. With your hands you feel the flawless workmanship. And your back feels that these “small entry-level speakers” should never be lifted alone. A Sonora is said to weigh just under 50 kilos (110 lb). I haven’t weighed it, but I think the figure is greatly understated and suspect it’s closer to 75 kilos (175 lb). In short, the Sonora may have a delicate shape, but it feels like it has been poured with concrete.

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Peak Consult Sonora diagonal
The front is more than 60 millimeters thick. This enables acoustically optimized chamfers that prevent baffle reflections from occurring in the first place. (Photo: Peak Consult)
Peak Consult Sonora Page
A high-gloss acrylic strip takes away the visual austerity of the walnut housing (Photo: Peak Consult)
Peak Consult Sonora rear
The 20 cm passive diaphragm and the bi-wiring connection panel are located at the rear (Photo: Peak Consult)
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And the idea of a concrete filling is not entirely wrong. Cabinet maker Per Kristoffersen uses three layers of HDF (high-density fiberboard) and covers this already extremely solid construction with 14 millimeters (0,55 inches) thick real wood planks. The walls are thus up to 60 millimeters (2,36 inches) thick and simply do not vibrate. The Sonora responds to the usual knuckle test with – nothing. A quiet, immediately subsiding “thud”. That’s it. Even the large models from Wilson, Lyravox or Magico vibrate a little longer here.

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Peak Consult Sonora Processing
The cover panels made of 14 mm thick real walnut wood lend the Sonora a hand-flattering quality (Photo: H. Biermann)
Peak Consult Sonora Processing
The baffle is solid. This allows the Peak carpenters to easily mill out the acoustically advantageous slopes (Photo: Peak Consult)
Peak Consult Sonora connection
Everything about the Sonora is ultimate. The bi-wiring connection offers large contact surfaces with defined contact pressure (Photo: H. Biermann)
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And if that wasn’t enough, the lower quarter of the housing, where the crossover is located, is completely filled with the finest sand. That alone should be good for at least 15 kilos. Karl-Heinz Fink comments. “We used to do that a lot. But I had forgotten how much better a sand-damped crossover sounds.”

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Peak Consult Sonora crossover
Even the cross struts are multi-layered. Underneath is the two-part crossover, which is equipped exclusively with the best components (Photo: Peak Consult)
Peak Consult Sonora crossover sand
Once the crossover has been installed, the chamber is completely filled with fine sand and then sealed. The sand effectively suppresses all vibrations of the components (Photo: Peak Consult)
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The crossover separates the woofer and tweeter at 2,500 hertz with 12 dB/per octave. For the filters, Fink uses the best from specialists Mundorf, Jantzen and Duelund – complex, but to be expected. However, the impedance linearization above 100 Hertz is particularly impressive. Rarely have I seen a smoother curve of impedance, phase and EPDR.


The LowBeats measurementappears to be straight out of the textbook: Impedance and phase are linear and virtually without any offset. This kind of behavior makes it particularly easy for the connected amplifier.

LowBeats measurement Peak Consult Sonora: Impedance, Phase, EPDR
Impedance (red curve) and phase are linear and virtually without any offset. It doesn’t get any better than this (Measurement: J. Schröder)

Now nobody would think of combining a – let’s say – 1,000 euro amplifier like the Cambridge CX 61 with this 25,000 euro transducer. But this is possible because the Sonora is completely undemanding in terms of power and because it is actually already completely exhausted with a good 100 watts.

This is mainly due to the low tuning – there is very little efficiency left. 83 dB (at 2.83 volts/meter) was measured by the laboratory. This is comparatively inefficient for a modern loudspeaker and at the end of the day leads to a rather low maximum level and not a particularly high power handling capacity. As I said: 100 watts per channel is actually quite sufficient, because more than that would quickly overload the delicate floorstanding speaker. But you always have to keep in mind: The Sonora is actually a cultivated and high-pitched compact speaker. If you want to fill large halls with dynamic sound, you’d better look elsewhere…

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LowBeats level measurement Peak Consult Sonora @85dB
The classic living room measurement at 85 dB reveals minor distortion artifacts across the entire low-mid range. You can also see the enormous balance (measurement: J. Schröder)
LowBeats level measurement Peak Consult Sonora @95dB
At higher levels, the distortion increased across the board. And at a continuous level of 95 dB, that was the end (measurement: J. Schröder)
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During the Sonora test I once again had a Westend Audio Monaco to listen to for a few days. That sounded intoxicatingly colorful, fine and open with the Sonora. But this experience is quite expensive, because the tube amplifier is almost as expensive as the loudspeaker. The Soul Note A-2 is recommended for those who prefer a smaller size. This is currently my favorite (transistor) amplifier under 10,000 euros and even with it the Sonora sounded beguiling…

Hearing test

The Sonora is one of those speakers that captivates you from the very first moment. Such an unagitated, balanced and natural, yet always finely nuanced reproduction is rare; voices come across with a fervor and intensity that one would wish for from all loudspeakers. There is the necessary dash of warmth, but also the multitude of subtle overtones. The Sonora doesn’t swallow anything and yet never seems superficial or too present. Here, all the small, very consistent detail solutions and damping measures seem to have a very successful effect, because the Sonora simply celebrates vocal passages or individual instruments (solo violins, guitars) more convincingly than almost any other loudspeaker I know.

Recently I was at Martin Kälberer’s concert and had previously reviewed his multi-channel recording “Raum”. In a Dolby Atmos configuration, the recording is awesome, but it also shows a wonderfully vivid spatiality in stereo. Reproducing these is easy for the Sonora. The position of the percussion sounds (which the sound engineer placed to the left or right of the listener’s head) were surprisingly firm and precise. But the Sonora also created a breathtakingly deep soundstage.

Martin Kälberer
A benchmark in terms of spatiality: Martin Kälberer “Raum” (Cover: Qobuz)

Naturally, we were extremely excited to see how the Sonora would fare against our reference, FinkTeam Borg – both of which, interestingly enough, were bred to perfection by Grandmaster Fink. In fact, all points that are more in the quantitative area (coarse dynamics, depth) went straight to the Borg. She was also the one who made the timpani sound even firmer and more menacing and made the audience move a lot more – or rather, made our legs bounce along – with the powerful bass drum attacks. The Sonora seemed a touch slower here.

But there is so much more. I would like to call it “grace” and “tonal elegance”. The wonderfully multi-layered voice of Kristin Asbjörnsen not only placed the Sonora almost holographically in the room, but also transported it with an extraordinarily cultivated and transparent resolution and immense richness of timbre. Although the Borg is a real fine spirit in the mid-high range and has long been an incorruptible benchmark for us in terms of naturalness, it only came second in the tonal comparison. To put it simply, the Sonora simply sounds beautiful and right.

Conclusion Peak Consult Sonora

With their artificial leather baffle cover and the perfectly crafted, solid walls with real wood planking made of American walnut, the Sonora look a bit like they’ve fallen out of time. Perhaps they are, because they combine a technology that has been known for many years and mechanical tricks that have been known for a long time with the greatest effort and consistency. All this comes at a price, but it also produces an outstandingly beautiful result: the Sonora may not be a world champion in dynamics, but it has a tonal beauty and authenticity that has few rivals even in this class.

Peak Consult Sonora
Test result: 4.7
Sound Quality
Build Quality


The rating always refers to the respective price category.
Enormously fine, musically natural tuning
Amazingly realistic reproduction
Electrically undemanding, suitable for any amplifier
Outstanding housing quality

Peak Consult,
Langelandsvej 12
DK-5500 Middelfart

Price (manufacturer’s recommendation):
Peak Consult Sonora: 25,000 euros

Technical data

Peak Consult Sonora
Concept:passive 2-way floorstanding speaker
Fitting:TMT: 1 x 17 cm, HT: 1 x 20 mm, passive diaphragm: 1 x 20 cm
Nominal impedance:7.4 Ohm
efficiency (2.83 V/m):83 dB
Maximum level (permanent/short-term):95 / 105 dB
Minimum power for maximum level (duration)>35 watts
Dimensions (W x H x D):113.0 x 28.0 x 38.5 cm
48.4 kilogram
All technical data
Teammates and opponents:

Test integrated amplifier Soulnote A-2
Test FinkTeam Audio Borg: the new LowBeats reference

Autor: Holger Biermann

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Chefredakteur mit Faible für feinste Lautsprecher- und Verstärkertechnik, guten Wein und Reisen: aus seiner Feder stammen auch die meisten Messe- und Händler-Reports.