A symbiosis of modern audio technology,
excellent design and the best possible
sound quality.

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Kurt Scheuch, Company founderMusic! That, and that alone, is ultimately what a loudspeaker is
all about.
For us, the best loudspeaker is one that does not intrude
on the sound texture; one that introduces no sound interpretation of its own. In other words, one that renders whatis played in the concert hall or sound studio as directly andnaturally as possible.
It is an absolute privilege to allow oneself to be taken away
into a land of senses and relaxation with absolutely original,
wonderful and crystal-clear sound. Music in perfect quality
expresses what cannot possibly be said in words.

Music carries us away, leaving the world around us behind.
Piega speakers will also carry you off into completely new
acoustic dimensions.
All PIEGA speakers are produced in our factory on thebanks of Lake Zürich in Horgen and Wädenswil. We manufacture all ribbon systems and perform the final assembly of
the loudspeakers there. 100% handcrafted and «Made in
Switzerland» are two of the essential PIEGA brand claims.
We are the market leader for loudspeakers in Switzerland
and today export our products to 38 countries.
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Leo Greiner, Company founder

30 years of pioneering spirit, and much painstaking craftsmanship have brought us ever closer to this ideal.
Our company philosophy is to realise the best possible
sound quality by uniting cutting-edge audio technology
with excellent design. Loudspeakers from PIEGA are a
joy for both eye and ear. A logical functionality determines
their simple, sleek and elegant styling, a hallmark of therenowned and award-winning Swiss star designer Hannes
Wettstein.
Allow me to take a look at the major milestones in the
PIEGA story: in 1996 PIEGA was founded by me, Leo
Greiner and Kurt Scheuch. From the beginning, there was
the use of our own PIEGA ribbon tweeters. In 1997, PIEGA
introduced the world’s first extruded aluminium profile
for the cabinet construction. Three years later – anotherworldwide exclusive – the first coaxial ribbon system.
Enormous developer expertise was used in creating the
PEIGA-exclusive

subwoofers

with

MDS

and

MOM

technology, first presented in 2006. In 2009, we unveiled
the first dipole emitter with a coaxial ribbon system. Stillused to this day, the LDR 2642 MKII ribbon tweeters cameout in 2011, and the most recent highlight in the PIEGA
story is the presentation of the Master Line Source inAutumn 2013.

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Technological highlights:
1. Ribbon tweeter

3. Coaxial ribbon

Whereas most loudspeaker manufacturers rely upon dome

In 2000 PIEGA succeeded in fusing tweeter and midran-tweeters for reproduction of high frequencies, PIEGA Headge ribbons in one unit. PIEGA introduced the world’s firstof Technology Kurt Scheuch was using the PIEGA model

coaxial midrange/tweeter ribbon! In the larger design, thisribbon tweeter the company introduced in 1986 in the

cutting-edge technology is called C1 and is used to thiscompany’s very first year. Because ribbon speakers have

day in the top models of the Coax series. Two years later, aan extremely light membrane made of a thin folded or em-

more compact version of the coax driver called C2, whichbossed aluminium foil, they can reproduce high frequency

is found today in the smaller coax models.

impulses much faster and more directly than conventionaldomes. Even the company name refers to this chassis

4. Aluminium cabinets

technology: «La piega» meaning «fold» in Italian. Over theAluminium cabinets not only make for a very elegant andpast nearly 30 years, the PIEGA tweeter has been further

sleek speaker design, but also significantly reduce the cabi-

developed and can now be found under the name LDR

net dimensions necessary for a voluminous bass reproduc-

2642 MkII in all speakers in the Premium series.

tion. Hence PIEGA proved itself to be a true pioneer fromthe start for transducers made from this unique material

2. Midrange ribbon

and shows throughout its entire range of products just how

In the 90s PIEGA expanded its chassis range to include asonorous and powerful relatively compact speakers can be.

midrange ribbon specialized in reproduction of the midrange. Starting at 500 Hertz, compared to the ribbon tweeter,
significantly larger foil speakers enter into the acoustic
moment. Its powerful neodymium magnet and the excellent
physical properties left the professional world speechless at
an exceptionally airy and spacious sound. Today the puremidrange ribbon is no longer used – but lives on as part of
the PIEGA coaxial ribbon system.

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«The Coax 30.2 belongs amongst the ranks of the subtlest transducers – fascinating in all tonal
and spatial fine values.»(Audio 11/2012 on the Coax 30.2)«The two TMicro 3’s sound neutral, fresh and natural. Dimensionality, perfect accuracy with thebaserange and liveliness in the overall presentation, makes you want to straightaway set up thenoble system right in your sitting room.»(areadvd.de in July 201 on the TMicro 3 with TMicro Sub)

Excellent sound quality
In addition to the exceptional design and the innovati-

standing sound quality. The short quotes on the followingve technologies of PIEGA loudspeakers, one thing must

pages are from publications in the trade media from thenot be forgotten: their excellent, widely praised and out-

past four years.

«As a team, the Piega trio appealed, beyond its successful design, with a harmonious,
thoroughly audiophile-inspired sound image, with fresh, impulse-accurate and clear contrast.»(Stereo 8/2013 to 3 TMicro with TMicro Sub)

«The coax system, in forming an acoustic centre in the tweeter and midrange, delivers tangible
vividness, seamless dynamic contrast and homogeneity. World class!»«For anyone who loves music and enjoys richness of detail but is not willing to buy big speakers
for big sound, the Piega is spot on.»(Stereo 8/2009 on the Master ONE)(Stereoplay 4/2012 on the Coax 90.2)«The grip, the airiness of good recordings, in short: the enjoyment in experiencing music – that’s
what Piega offers to a significantly greater extent.»(Stereoplay 9/2009 on the Master ONE)«For the suggested retail price, the new Piega sounds simply sensational in terms of neutrality,
fine and coarse dynamics and resolution.»(Home Electronics 11/2012 on the Premium 5.2)

«The acoustic breadth and depth surprises with a volume that one would not have believed aloudspeaker of this size capable. Kudos!»(av-magazin.de in the August 2013 edition on the TMicro 4)«The audible result is so convincing that most commonly stocked speaker looks quite old incomparison. Particularly in terms of the fine dynamics Piega here catapulted far forward.»(Fidelity 4/2013 on the Coax 120.2)«The Master ONE sounds amazingly different to conventional, only frontally emitting boxes: freer,more detached, more light-hearted. It handles any kind of music with the greatest of ease, yetorchestrates it in an emotionally gripping and haunting way.»

The Premium and TMicro product lines won the PlusXAwards for high quality and design.

(Home Electronics 9/2009 on the Master ONE)8

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PIEGA ribbon tweeter
In the very year it was founded in 1986, PIEGA
presented its first proprietarily-designed ribbon tweeter.
It made a great wave in the industry. It has since been
continuously developed and is used today in all
loudspeakers of the PIEGA Premium series in what iscalled the LDR 2642 MKII version. With its detail and its
efficiency clearly the ribbon exceeds the performance of aconventional dome tweeter.
These excellent audio properties are made possible by a
26 x 42 mm paper-thin aluminium foil membrane. The
moving mass is only seven milligrams and is thus about
30

times

lighterthanthelightest

commerciallyavailable dome tweeters. The membrane contains twoflat coils that are used up using a very sophisticated spray
etching technique. It is driven by a highly compressed

The membrane foil is mounted in a glass-fibre-reinforced

The advantages at a glance:neodymium magnet and magnetic bars built into the front

epoxy holder that is positioned in a subchassis made- Very little moving mass

panel that function as magnetic lenses. They converge

from rubber elements with high damping properties. The- Best impulse behaviour

the magnetic field lines, so that the tweeter has anfoil is additionally given a special embossing through a- Extremely linear frequency response

efficiency of more than 100 dB. The audible result is acomplex process that significantly increases the stiffness- Clean decay spectrum

remarkably clear and extremely detailed sound, an

and internal damping without adding significant extra- High efficiency

unprecedented vitality – even at low levels – and an

mass. The system can be used with as little as 3,500- Low distortion factor

impulsive and clearly reproduced midrange.

Hz. Here, the distortion factor is extremely low and the- Aluminium membrane made from 0.02 mm-strong foil

cumulative decay spectrum free of any resonance.

with only 0.007 grammes of moving mass
- Frequency response up to 50,000 Hz; efficiency 100 dB

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The advantages at a glance:- The tweeter and midrange membranes are located ona plane in all three axes = a single acoustic centre- True point source- Lively sound- No phase shifts- Includes all the advantages of the LDR ribbon tweeter- Coaxial ribbon system(tweeter/midrange):
0.02 mm aluminium foil
- Frequency response from 400 Hz up to 50,000 Hz;
efficiency > 100 dB

PIEGA coaxial ribbon
PIEGA’s coaxial ribbon system is the uncompromising
successor of the midrange and ribbon tweeter. It
combines for the first time all the advantages of thecoaxial transducer arrangement in a ribbon system.
The special feature of this system is the fact that themembrane of the tweeter is surrounded by the membrane of the midrange. The two membranes are therefore on
the same plane and have the same spatial point as theacoustic centre. The result is a perfect addition of theindividual frequency ranges. Thereby the system has anearly perfect impulse response, which is not «shrouded»by the components of the indirect sound. The resulting
resolution is of an unprecedented clarity.
The rectangular membrane used in the midrange con-

The tweeter is located at the centre of the midrange

sists of a very light, but stable aluminium foil only 0.02 mm

membrane. Its key design features are based on the

thick. Its dimensions ensure excellent emitting properties

legendary PIEGA LDR ribbon tweeter described on pageand make it usable at as low as 400 Hz. Extremely strong

10. Its dispersion response harmonises perfectly withneodymium magnets provide the drive. An efficiency

the midrange frequency.

of more than 100 dB guarantees considerable dynamic
reserves and an animated sound quality even at low levels.

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PIEGA aluminium cabinets
As to be expected from PIEGA, the visual appearanceof the loudspeaker is characterized by the wonderfultimeless elegance typical of Hannes Wettstein. The
aluminium cabinets we use suit any surrounding and

The facts at a glance:

reflect perfection impressively.

- All PIEGA loudspeakers are made in aluminium- Pressed with a 7,500 tonne press out of 3 tonne block

The ideal speaker cabinet should be absolutely freeof aluminium

from any vibration and intrinsic resonance. Therefore it- Production in a single production stepis extremely important that a perfect cabinet have very

- Outstanding cabinet stiffness through an optimal cabinet

great stiffness and very high internal damping properties.

wall : IDIKELL damping material ratio.

Aluminium is an almost ideal material for answering both

- Acoustically ideal cabinet styles

needs. Aluminium cabinets are much stiffer than cabinets- Shapely floor plates with excellent stability, top withmade of MDF and with much thinner walls than wooden

shadow gap

cabinets. In addition, aluminium loudspeakers have a muchabsolute precision. The sophisticated strutting and thegreater interior volume than a wooden speaker of theuse of special bitumen-composite materials applied

Note:same exterior dimensions. This makes for relatively small

proportionally to the cabinet wall thickness are important

With its CLASSIC line coming out in 2014, PIEGA will be

speakers with a «big» sound.

design factors in the realisation of the acoustically perfect

bringing several speaker models with conventional wooden

cabinet. PIEGA was the first manufacturer to produce

cabinets to the market for the first time. Two reasons led

The cabinets are extruded from a 3 tonne aluminium

cabinets made of aluminium and now has more than

to this decision: firstly PIEGA wished to show how well theblock by a press weighing 7,500 tonnes. The cabinet with

15 years of experience in building aluminium loudspeakers.

unique chassis technology of the PIEGA ribbon comes into

trapezoidal, triangular or C-shaped floor plan combines

This also explains its technological edge over its

play even in comparatively inexpensive speaker models,

great stiffness, unhindered sound radiation and thecompetitors.

whilst also impressively proving with the CLASSIC Lineabsence of any resonances. The baffle for our MasterONEhow fantastic and compelling the sound quality is of theiris made from a solid aluminium block with a high damping

technically similar but dramatically more compact sister

core, the individual cabinet parts are made of a threemodels with aluminium housings.

tonne aluminium block and the subwoofer cabinet is madeof aluminium plates that are laser-welded together with14

Another approach describes the so-called line source

In several years of development, the PIEGA Master Lineas the ideal transducer. In the case of the line source, all

Source was born, whose tweeter/midrange panels were

frequencies are radiated as coherent cylindrical soundultimately each equipped with 24 ribbon tweeters and nine

waves – a principle for which the PIEGA ribbon

used as a dipole ribbon midranges and in each of whoseloudspeaker technology would be eminently suitable.

subwoofers six 22 cm basses are used.

Furthermore, since the degree of distortion increases
linearly with the deflection of the membrane on each

The structural realisation of Master Line Source is based on

loudspeaker, the line source (whose sound-producing

the principle of the dipole emitter. In order to implement thesurface is considerably greater than with conventional

acoustic qualities without compromise using the drivers’

speakers) exhibits only extremely low distortion.

high quality and lack of distortion, considerable importance
was placed on lack of vibration in the cabinet. The entire

Thus the idea was born to combine both approaches andmid-high-frequency panel baffle has been milled out of ato develop one line source with several ribbons.

solid aluminium block and shows impressive and damping.

The aluminium block consists of a special alloy with the

The acoustic fine-tuning of the system also took a vast

highest possible strength and internal damping, and isamount of time into which the entire sum of the PIEGA

additionally annealed in an hours-long process in order toexpertise was poured. The limits of the system werebe tension-free. The entire milling process for the baffles

extended again and again during long listening sessions.

is carried out on a five-axis CNC milling machine lasting

The Master Line Source is made with exacting craftsman-

many hours. This is the only way to achieve the required

ship by a longstanding member of the PIEGA crew. At the

precision. The large-volume bass tower is constructed fromcompany’s headquarters in Horgen, absolute masterpieces

solid panels and stiffened in an extremely complex manner.

of loudspeaker design are thus created for perfect listening

PIEGA Master Line Source – the ideal of the perfect loudspeaker
PIEGA Head Developer Kurt Scheuch has always beenfascinatedbyinnovation

andtechnologicalhigh-performance. His conviction that the perfect speakermust represent an infinitely small point source, led tothe coaxial ribbon system that radiated not only the highfrequency range, but also the entire mid-high range on
the X-, Y - and Z- axis from the identical point.

pleasure.
In order to increase the stiffness and damping, additional
aluminium panels and Idikell bitumen-composite panels areapplied during a compound process.

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PIEGA MasterONE: First dipole loudspeaker with coaxial ribbon
system.

PIEGA Coax Series: Reference class with coaxial ribbon system.

After extensive studies, calculations, tests and a few

Flawless sound image from the highest to the deepest tone,

sleepless nights, the development of PIEGA MasterONE

speed, simultaneous transmission of all frequencies – thesewas completed in spring 2009. We have managed to

are the outstanding attributes of the Coax high-end series.

combine the uniqueness of the world’s first coaxial ribbon

All models are produced in our studios in Horgen undsystem and the essential elements of the slender tower

Wädenswil with the utmost craftsmanship and are

speaker in an effectively dipole emitting system, thus

acoustically adapted and rigorously tested before leaving

setting a new milestone in the history of loudspeaker

our house for the big wide world. The coaxial ribbon

design.

system, which is used in all Coax models, ensures thehighestpossiblesoundqualityandsimultaneous

perception of both high and mid-range frequency
transmission. The Coax series is a guarantee for sound andpure enjoyment!

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PIEGA Premium Series: Loudspeaker with LDR ribbon tweeter.

PIEGA TMicro Series: The clever space-saving series.

All Premium models are fitted with the newly-constructed

Premium models with PIEGA ribbon tweeters are

Despite minimal dimensions, the new TMicro series

PIEGA LDR 2642 MKII ribbon and play the high-frequency

available in various sizes, from the small 30 cm highloudspeakers will amaze you with an emphatic richness ofrange with a fine, silky and crystal-clear sound. This newcompact loudspeaker up to the meter-high column. Thatsound. In conjunction with the classic aluminium cabinet,

tweeter is the logical further development of the legendary

there is in the series of two centre loudspeakers in different

neodymium dome and precision- tuned crossover, we

LDR ribbon. For the MKII model, many new materials andsizes makes the Premium series particularly attractive tohave built a speaker, which is able to play music even withdesign features from the coaxial converters are applied.

multi-channel lovers.

minimal dimensions as a stand-alone converter with brio.

The whole Premium model range of 50.2, 5.2, 3.2 and 1.2
is now being built in the aesthetically appealing C-shaped
cabinets. The successful result of our work is a fantastic
improvement in every technical discipline, but also a
considerable step forward in terms of sound. The bass
chassis, which uses MDS® technology to ensure a
voluminous bass power, has also been further developed.

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PIEGA AP: Sonorous compact speakers for universal use.

PIEGA Subwoofer: Fascinating playback of the bass range.

Idiosyncratic but sophisticated and precisely calculated

To truly enjoy the full bass range spectrum, the use of ashapes coupled with selected technology, characterize

subwoofer is a must. It is responsible for low-frequency

the AP series loudspeakers. The advantages of thesound waves playback and handles the emission of the

AP 3 lie in its universal applicability. It can be used as

lowest bass frequencies in both home theatre and stereo

stereo loudspeaker, as surround and as centre speakers

systems. The terminal fields of PIEGA PS1 and PS2 models

and acoustic irradiation of large locations. Whether

offer numerous connection options for stereo systems withmounted vertically, horizontally or on the ceiling - AP 3

separable full amplifiers or pre/power amps and surroundradiates from all directions without any loss in quality. In

sound systems with AV receivers. And in addition to an

surround mode, true theatre-like experience is guaranteed

amp for the built-in woofer, the subwoofer from the TMicrowhen combined with an active PS 1 or PS 2 subwoofer!

Series even comes with two more power amps for the

A simple wall holder has been developed especially fordirect control of two stereo satellites.

this series for wall or ceiling mounting. It can hardly be seen,
and can also be aligned to the required level.

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PIEGA SA
Bahnhofstrasse 29
CH-8810 Horgen
Phone +41 44 725 90 42
Fax +41 44 725 91 92
mail@piega.ch
www.piega.ch
Information for exports
PIEGA SA
Bahnhofstrasse 29
CH-8810 Horgen
Phone +41 44 725 90 02
Fax +41 44 725 91 92
mail@piega.ch
www.piega.ch