Peak

Kepheus from Peak Consult

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Peak Consult Perspective for The Kepheus

In the jungle of consumer and so-called High-End loudspeakers, there are some brands actually reaching for these higher goals. Peak Consult is one of them, but how is that done?

Countless hours of measuring and critical listening by many audiophile ears have gone into making The Kepheus one of the finest three-way loudspeakers available. With impedance curve and electrical phase characteristic like an electrostatic speaker, the final blend of art and technology has made The Kepheus an uncompromising work of art. The State of the Art and the finest loudspeaker have seen the light of day. It will herald a new meaning to High End speakers.

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Enclosure

The multifaceted enclosure of The Kepheus is handcrafted in our own facilities in Denmark by skilled Danish artisans in a 1.5"- 3.0" HDF specially glued sandwich material covered by 1" solid acrylic. At all points, resonance suppressers have been used in the construction. Special resonance suppressers have also been milled into the construction. Each material panel has been measured and hand-chosen by skilled Danish artisans. The triple order composite creates a new standard in resonance control. The Peak triple construction renders resonance problems virtually history. Production is very costly, but Peak Consult made that final step.

The design optimises the off-axis response and minimizes any kind of diffraction. In order to minimize acoustical waves, there are no parallel front, back, top or bottom panels. The slant of the front panel aligns the phase and timing between tweeter, midrange and woofers. All design choices have been made and done to meet acoustical performances. The enclosure is the direct result and the acoustical phase behaviours are second to none.

Transducers

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The Tweeter:

The tweeter is a triple magnet 1" soft dome with a non-resonant aluminium chamber. It features multiple chambers with low compression and a machined aluminium faceplate. Peak Consult has altered the front plate in a very different way to take the perfect behaviour to the extreme. The tweeter performs effortlessly at the sonic extremes and creating "space and air" unlike all previous dome tweeters. The most important thing about the choice of this construction was the performance. There are many tweeters reaching for the higher frequencies, but they fail in phase characteristics and that is what it's all about. Not data - only performance.

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The Midrange section:

The dual 5" Audio Technology midranges are hand-built specifically for optimal behaviour in The Kepheus enclosure. The driver features a cone that has been uniquely shaped for this moving system and a vented magnet system that includes Symmetric Drive, optimising the linear directivity. It performs with unparalleled sound staging ability and images as tight and sharp as a diamond. The midrange will set new standards with regards to midrange clarity and will go far beyond what is typically possible for a midrange driver.

What has been done? Peak Consult choose to have a very linear and stable cone, instead of fancy cones that in Peak Consult ears are unreliable in production as well as performance. The chosen cone is more coherent instead vs. the unnatural excesses of popular exotic cones. Furthermore, Peak Consult have decided to do the most linear design that makes the speakers perform effortlessly in years to come. This was an easy choice, instead of choosing an exotic appearance.

The Woofer section:

The dual 6" Audio Technology woofers are hand-built and specifically designed for The Kepheus. Using new and special technology in the moving part of the units make them very low-loss drivers. The huge magnets and ventilation that includes Symmetric Drive systems make the driver's reproduce very tight and extremely low frequencies - second to none. These drivers will set new standards in bass reproduction.

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High frequencies:

The Kepheus includes an acoustical fully compensated second order crossover in the tweeter/midrange and woofer section, isolated from the moving system in its own dual sealed department. The Kepheus only features the best of the best. Dual Peak foil capacitors, silver carbon resistors and oiled/waxed inductors by Duelund Coherent Audio manufacturer of the world's finest components.

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Low frequencies:

The low frequency includes only oiled/waxed-foiled inductors from Duelund Coherent Audio helping to realise a fully compensated second order roll of. The low frequencies have also been altered by our straight level impedance and phase control. All sealed in its own isolated compartment.

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Components:

Every component has been chosen for its sonic and musical behaviour, with no consideration for cost. The crossover is crimped and hardwired with silver soldering. The crossover is sealed in its own compartment to avoid microphony distortion and to shield it from electrical and magnetic radiation from the rest of the system. Peak Consult uses only the best parts to do this High End loudspeaker. Imagine, there is used more than 300 metres of components in a speaker. The end user only has control over a few metres of speaker cable. The speaker has a heart and for that only the finest is acceptable.

Internal wire:

Peak Consult uses a special dual Silver flat silk insulated OEM wire from Duelund Coherent Audio for the upper frequencies and a special Peak Consult manufactured high current cable for the bass.

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Termination:

The true Bi-wire termination is done with The WBT platinum signature.

Recommended room size:

From: 20 square meters and up.

Specifications:

Design: 3-way Ported.

Crossover Frequencies: 250 Hz / 2.450 Hz.

Frequency Range: 28 – 45.000 Hz –3dB in room.

Sensitivity: 90 dB @ 1W/1m.

Impedance: 4 ohm linear to 25 Hz.

Dimension (H X W X D): 128 X 27 X 69 cm. – (50" X 10,6"X 27")

Weight: 155 kg. –(343 lb.) each.

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Wow, world class. Looks stunning!

But let's keep to the facts, you're writing:

Peak Consult has altered the front plate in a very different way to have a perfect behaviour that makes it to the extreme

The face plate are indeed a Morel standard face plate. Not a "different super special Peak Consult version" as you claim.

Is the bass cabinet closed or ported? (You specify -3db @ 28Hz, in room???)

Do you have any FR measurements of the speaker?

Jag vet inte varför jag skriver på engelska... :D

Rock on,

Tobias

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Det er altså en imponerende basgengivelse fra en højtaler, der opgives til "kun" at gå ned til 28 Hz /v. -3dB :app:

Jeg tager et par "bas skiver" med næste gang :D

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Wow, world class. Looks stunning!

But let's keep to the facts, you're writing:

The face plate are indeed a Morel standard face plate. Not a "different super special Peak Consult version" as you claim.

Is the bass cabinet closed or ported? (You specify -3db @ 28Hz, in room???)

Do you have any FR measurements of the speaker?

Jag vet inte varför jag skriver på engelska... :D

Rock on,

Tobias

Jo vi har fået STANDART face plate lakeret med en anden type lak der gør den mere "nupret" i stedet for "nupret" tape.

Jep vi har en måling, håber at det er ok

Kepheuskopi.jpg

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Hej Per,

Ok @ "special paint".

Men din mätning är svår att läsa när du har Y-skala att visa 150db :o

Zooma in Y-scale i CLIO till att visa i alla fall 50db

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Mvh,

T

Ja klart,

Du ved med måling kan du få hvad du vil og det er jo ikke målinger man vil i den sidste ende.

Vores studio monitorer måler som studio monitorer vil have, men i Hifi sammenhæng er verden en anden. :D:D:D

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Guest justaudiomagic

Hej Per

Jag är med i er så kallade news group o jag bara måste gratulera till ett par helt otroligt läckra högtalare !!

Hoppas jag får äran att se o lyssna på dessa en dag, du kanske har lust att ta med ett par till Malmö? :mm:

155 kg st är imponerande !!!!

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Hej Per

Jag är med i er så kallade news group o jag bara måste gratulera till ett par helt otroligt läckra högtalare !!

Hoppas jag får äran att se o lyssna på dessa en dag, du kanske har lust att ta med ett par till Malmö? :mm:

155 kg st är imponerande !!!!

Yes we are the last Boy Scouts :D:D:D

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Men den kommer jo i momentum udgaven i sølv og sort :D

Naaäää, jag tror nog att det skall vara nått litet träinslag, silver och svart blir lite för betong och stål för min smak... ;)

Man har ju lite konservativ smak när det gäller högtalare... :cool: :cool:

/ptr

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Naaäää, jag tror nog att det skall vara nått litet träinslag, silver och svart blir lite för betong och stål för min smak... ;)

Man har ju lite konservativ smak när det gäller högtalare... :cool: :cool:

/ptr

Det er også min smag, men det er jo ens egen smag der gør sig gældende og "momentum" er også solgt med sort og træ :):)

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Det er også min smag, men det er jo ens egen smag der gør sig gældende og "momentum" er også solgt med sort og træ :):)

Kepheus Momentum, god elektronik,kabler og fed musik = MIN SMAG! that´it

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Kepheus Momentum, god elektronik,kabler og fed musik = MIN SMAG! that´it

Ja Lørdag står der en ny forforstærker og CD.......Det bliver godt :mm:

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Ja Lørdag står der en ny forforstærker og CD.......Det bliver godt :mm:

Så kan vi jo spille dobbelt ;)

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Så er det dags for nye Kepheus oplevelser. På lørdag er der træf for Nerds.DK, Vejen hifi klub og andre hos Peak Consult i Middelfart. Per Kristoffersen vil naturligvis selv være tilstede sammen med, Hans Ole Vitus fra Vitus Audio, Johnny Bergmann fra Bergmann Audio, Frederik Carøe fra Duelund Coherent Audio og sidst men ikke mindst Brian Skov fra Sound and Magic i Odense. Alle forudsætninger for en trävelig HiFi helg er tilstede :D:D:mm:

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Ja Lørdag står der en ny forforstærker og CD.......Det bliver godt :mm:

Lyder godt :D

Har netop i dag modtaget en meget musikalsk skive, så jeg selvfølgelig tager med.

Vi ses :D :D

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