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ANT. PETROF 275

Listen to the sound of this instrument

Valse brillante

Frédéric Chopin

Top class surface finish.

The patented pad under the bridges increases their stability and improves the vibration transmission.

The robust frame made of solid beech wood ensures a high degree of strength and a long life of the instrument.

Czech symbol on wheel brakes.

The robust support frame ensures high instrument stability and durability of the action control.

Description

Technology

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Its tremendous sound reaches into every corner of any concert hall in the world. At the same time it remains true to its roots and respects the colourful, romantic and rounded tone of PETROF instruments. It may be a giant, but its elegance and sensitivity are remarkable. An instrument that breathes life into the wildest dreams of the artistic spirit, while opening the hearts of the most demanding listeners

The ANT. PETROF 275 was the first instrument of its name, and is the PETROF company flagship. The eyes of the world watched over its five years of development and two years of testing. This instrument brought many innovations to the pianomaking craft, some of which have since been patented, and it has come to symbolise modern technologies while at the same time preserving the traditional techniques of the greatest pianomaking craftsmen. In particular its completely new construction, first class materials and careful processing make it an impressive instrument.

Specification More information

Bridges

Solid maple bridges efficiently transfer the vibrations of the strings to the soundboard. These newly designed bridges have been profiled to reduce mass resulting in an increase in energy transfer which produces exceptional bass response and treble transmission.

Iron plate

Computerized drilling (CNC) of the cast iron plate creates an accurate and consistent framework for precision scale design. Exact speaking lengths of the strings and duplexes result in optimal vibrations which produce a pure, singing tone. Open areas of the cast iron enable greater resonance coming from the soundboard

Soundboard

The European solid spruce soundboard delivers not only a wide dynamic range but also delivers PETROF’s characteristic romantic tone. Measuring in at 2,253 m² of surface area, the AP 275 contains sufficient power to fill any concert venue.

Wooden frame

The solid beech wood lattice frame ensures the structural support to resist the nearly 20 tons of string tension. This robust design is built with rigidity for longevity.

Key bed

The key bed is a three-layer cross-grain laminate of solid wood that creates a stable environment for consistent and even action regulation which is sought after by the most discerning pianists.

For a professional pianist, making music is both a joy and a responsibility. Pianists hone their minds, hands, and ears not only through extensive training in educational institutions, but over years of practice on a variety of high-end pianos. They train to control the action and to be fluent in the elements of music: tonal color, dynamic range, and stylistic expression. But however skilled the pianist, he or she is only part of the equation. The performance also requires a high-quality piano — one responsive enough to translate the player’s artistry and skill into sound, and able to project that sound to the audience.

Full review on PIANO BUYER

In 2023, the brand ANT. PETROF was classified in the highest category "Iconic" according to the globally recognized piano evaluation publication Piano Buyer. More information: here.

Full review

ANT. PETROF 225

Top class surface finish.

The patented pad under the bridges increases their stability and improves the vibration transmission.

The robust frame made of solid beech wood ensures a high degree of strength and a long life of the instrument.

Czech symbol on wheel brakes.

The robust support frame ensures high instrument stability and durability of the action control.

Description

Technology

Gallery

Review

References

Many musicians have expressed their enchantment with the way its wonderful sensitivity and flexibility allow for creativity and invention. As they play it, it will fill the world’s concert halls with its sound and stir the hearts of music lovers everywhere.

The ANT. PETROF 225 was the second piano to bear the premier brand-name ANT. PETROF. It benefits from its elder brother’s development, using every certified innovation and patent in combination with the finest European materials. This is an exceptionally versatile instrument. Despite its dimensions, its sound is surprisingly powerful, yet also amazingly colourful and vivid. It is distinguished by its pleasant sonority across the whole keyboard, and its very precise action.

Specification More information

Bridges

Both the bass and treble bridges are made from solid maple and feature a wider soundboard “apron” at the base which more effectively transfers vibrations from the strings. This hand-carved spruce layer in between the soundboard and the bridge in essence acts as an expansion to the soundboard and produces exceptional bass response and treble transmission. With an enlarged soundboard expansion layer, the subsequent bridge mass is reduced resulting in minimized energy loss and increased bridge and tuning stability. The upper surfaces of the bridges are hand-notched and hand-drilled for bridge pins and coated with graphite for low-frictional movement.

Iron plate

Manufactured in the local Czech Republic, the grand plate is made from traditional grey sand cast iron. It features 6 longitudinal braces and 1 transversal brace for maximum structural integrity. The cast iron plate is drilled by using a CNC machine after which it is primed and finished by hand before being glazed with gold metallic lacquer. Drilling of the cast iron plate on the CNC machine generates an accurate and consistent framework for precision scale design. Exact speaking lengths of the strings and duplexes result in optimal vibrations which produce a bright, singing tone. Open areas of the cast iron enable greater resonance from the soundboard.

Soundboard

The soundboard is made from solid European spruce wood. Diaphragmatic by design, it is tapered from 9 mm in the centre to 6.5 mm along its perimeter. Total surface of the soundboard is 1,712 m² and contains 14 reinforcing ribs. The asymmetric crown of the soundboard has extremely wide dynamic range and yet retains the characteristic PETROF romantic timbre.

With such immense power, the ANT. PETROF 225 is well suited for any concert hall.

Wooden frame

The solid wood beech frame provides a high degree of rigidity built for longevity.

Key bed

The key bed is a three-layer cross-grain laminate of solid spruce wood finished with a layer of beech wood (47 mm thick). It is additionally reinforced from below with solid beech wood beams.

This creates an incredibly stable environment for consistent and even action regulation which is sought after by the most discerning pianists.

For a professional pianist, making music is both a joy and a responsibility. Pianists hone their minds, hands, and ears not only through extensive training in educational institutions, but over years of practice on a variety of high-end pianos. They train to control the action and to be fluent in the elements of music: tonal color, dynamic range, and stylistic expression. But however skilled the pianist, he or she is only part of the equation. The performance also requires a high-quality piano — one responsive enough to translate the player’s artistry and skill into sound, and able to project that sound to the audience.

Full review on PIANO BUYER

Full review

ANT. PETROF 136

The patented right pedal mechanism is designed to feel the same damper-like manner as on a large grand piano.

To ensure maximum stability the upright piano action is fastened with 4 consoles.

The unique design corresponds with the ANT.PETROF grand pianos.

The delicately designed brake with a slow closing system is the same as on a grand piano.

Both treble and bass bridge are made of solid maple wood.

Ebony semitones.

Description

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The ANT. PETROF 136 is potentially a revolutionary instrument in the history of piano manufacture. Write history with us and allow yourself to be carried away by its grandiose yet unusually pleasing tone.

The original and unusually robust construction of the body gives the piano great solidity and guarantees the long-term stability of the instrument, especially in its tuning and action. These attributes are essential for achieving high quality performance., and contribute greatly to a player’s confidence. Its high acoustic capacity, the response of its action, its colourfulness across the whole tonal range and its characteristic romantic sound makes the piano similar in feel to a concert grand.

Specification More information

Action

Renner-ANT. PETROF. For the highest possible action stability, there are four action bracket used in the AP 136

Bridges

Dense maple wood bridges facilitate excellent transmission of strings vibrations to the soundboard.

Key bed

The solid key bed (45 mm thick) made out of cross laminated birch wood provides structural integrity of the instrument. This ensures longevity to action regulation and accuracy for pianists.

Pedals

These new ergonomically designed solid brass pedals are made to simulate more of a grand piano feel. They are wider, lower to the ground, and incorporate a fully adjustable wooden mechanism.

Iron plate

Drilling of the cast iron plate on the CNC machine generates an accurate and consistent framework for precision scale design. Exact speaking lengths of the strings result in optimal vibrations which produce a bright, singing tone.

This full surround frame also contains more open areas which enable greater resonance coming from the soundboard.

Soundboard

The newly designed, European solid spruce soundboard provides an incredibly full dynamic range while retaining PETROF’s characteristic romantic tonal color. It is called a “floating” soundboard which contains areas unattached to the frame, freeing the vibration of the board.

Wooden frame

The joint and tenon frame of the AP136 is what you would expect to find on high-grade finished carpentry. While the six solid spruce back posts are carved by computerized lathe (CNC) for precision fit, the frame is completely built by hand.

Cut-off bars

There are two cut of bars used in AP 136 construction

Fallboard damper

This elegant recessed slow-close fallboard system is the same as you would find on a high quality grand piano.

For a professional pianist, making music is both a joy and a responsibility. Pianists hone their minds, hands, and ears not only through extensive training in educational institutions, but over years of practice on a variety of high-end pianos. They train to control the action and to be fluent in the elements of music: tonal color, dynamic range, and stylistic expression. But however skilled the pianist, he or she is only part of the equation. The performance also requires a high-quality piano — one responsive enough to translate the player’s artistry and skill into sound, and able to project that sound to the audience.

Full review on PIANO BUYER

Full review

ANT. PETROF 126

The new design of the pedals is adapted to more perfect functionality, they are larger, flatter and have a lower height above the floor.

The elegantly designed slow-close fallboard system is the same as in high-quality grand pianos.

Action Renner Original – high standard for all quality European instruments.

Description

Technology

Gallery

Review

Upright piano ANT. PETROF 126 is the gateway to the range of ANT. PETROF instruments and the newest member of ANT. PETROF family. Convince yourself how high the limits can be for an instrument that does not stand out with its size, but with its sound.

Although it is the smallest of the instruments in the ANT. PETROF family, it is undoubtedly its rightful member. For example, it shares the same keyboard and action lever ratios with the taller ANT. PETROF 136 upright piano. All other components are also based on the philosophy of the ANT. PETROF series. Premium materials, several technological procedures taken over from grand piano production and mainly the handwork of the best craftsmen from the PETROF factory make this instrument a great example of the European piano tradition.

Specification More information

Action

Renner Original – high standard for all quality European instruments. It shares the lever ratios of the keyboard and action with the ANT. PETROF 136.

Bridges

The treble and bass bridge are made of solid maple.

The maple wood of the bridge enables the perfect transmission of string vibrations to the soundboard without loss of energy and the exceptional sounding of bass tones.

Wooden frame

The supporting frame is made of a five-layer lath with a spruce core.

Thanks to its construction, it is extremely solid and stable in shape. It ensures high stability of the instrument, high constancy of regulation of mechanics and provides the player with a sense of security.

Pedals

The piano has 3 solid brass pedals. The new design of the pedals is adapted to more perfect functionality, they are larger, flatter and have a lower height above the floor. The left one is for bringing the hammers closer to the strings (the so-called piano pedal), the middle one is for the moderator function, and the right one is for raising the treble (the so-called forte pedal).

Cut-off bars

In the construction of AP 126, two crossbars are used, separating the active and passive parts of the soundboard.

Frame

The frame is made of spruce posts, connected by tenons. Contains 5 posts with a cross-section of 55×80 mm. The individual components of the frame are machined on a CNC machine. The skeleton is built by hand. The robust frame gives the piano body high strength and ensures the long-term stability of the instrument’s structure, the stability of tuning and regulation of the action, which is a prerequisite for the perfect performance of the pianist.

Iron plate

The frame is made of grey cast iron, cast in sand, from a Czech manufacturer. It consists of a so-called semi-harp structure. It also stands out with special support, ensuring higher stability of the central action console and the support frame. The surface of the frame is machined by hand, the frame is drilled using a CNC machine, and painted with gold metallic. CNC drilling of the cast iron frame ensures high accuracy of the string gauge. The precise effective string length for optimal string vibration and the creation of a clear, precise tone.

Soundboard

The solid European spruce soundboard is wedge-shaped and reinforced with 10 ribs and two crossbars. The arching of the resonance plate is asymmetrical. The original construction of the soundboard gives the piano a high acoustic performance in the entire tonal range and a characteristic romantic tone colour.

Fallboard damper

The elegantly designed slow-close fallboard system is the same as in high-quality grand pianos.

REFERENCES

Long concert grand piano ANT. PETROF 275 is the flagship which resulted from the company’s more than 155-year history. It is inspired by the best of the Mondial and Mistral models, but at the same time, with its completely new construction, it brings greater sound rate capacity, especially in the treble, of course, while maintaining the unmistakable bass typical of the PETROF brand. Add the top Renner mechanics, the materials used, and the eye-catching design, and we have a grand piano that aims to have its place in the premium class.

Ivo Kahánek, AP 275
For the recording of Mozart’s concerts, I was given the opportunity to play the beautiful instrument ANT. PETROF 275, with serial number 0001.

From the first notes, this piano fascinates me with an incredibly soft, but concrete and resonant tone, which suits me so much for Mozart’s music. It allowed me to shade the small nuances in the decorations and technical passages, as well as to add singing tone to the melodies in slow sentences. His balance of registers is admirable and I will be very happy to remember the two days in intensive contact with this great instrument. The instrument was not only inspiring but also great for keeping tuning. There was no need to make any delays with frequent retuning. Everyone who has experience with music recording will appreciate it very much.

I would like to thank the whole PETROF company for a beautiful instrument, but also for a friendly approach and highly professional service.

Lukáš Klánský, AP 275
Playing the new concert grand piano was indeed a surprise and a discovery for us. I think it is one of the best instruments on the market today. The colorfulness of the sound of this piano enables us to perform any composition exactly as we wish. It also enables us to move our audience emotionally.

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Anatoly Zatin, AP 275
We have discovered a remarkable new instrument today and we are astonished at its sound and the variety of new possibilities it presents. The ANT. PETROF grand impressed both us and our audience with its amazingly warm sound, as well as its extraordinary power and tonal range.

Vlada Vassilieva, AP 275
Grand piano ANT. PETROF 225 is characterized by a lot of fine details, which makes it one of the best pianos of its kind in the world. The keyboard design is incredibly comfortable, the gradation of the dynamics is very subtle, depths sound with unusual clarity. The specific size of the piano supplies the sound with an unexpected strength, nature, and characteristics that make it completely different from any other piano.

Antonio Formaro, AP 225
The upright piano AP 136 can be easily called a miracle in its class. Such strong, balanced sound and quality of tone, especially in extreme parts of the keyboard, are unprecedented for upright pianos. The higher positioning of the keyboard suits me very well. I also appreciate other features of the instrument – two-degrees cover opening or divided upper frame. I like the instrument a lot, I would be happy to have it at home. I give it five stars.

Petr Malásek, AP 136

Want to learn more about ANT. PETROF pianos?

Do not hesitate to contact us

+420 602 116 308

info@antpetrof.com

IN: 62028634
VAT ID: CZ62028634

The company is registered in the Commercial Register administered by the Regional Court in Hradec Králové, file no. C 7054.

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Depth (mm)		635
Width (mm)		1517
Height (mm)		1263
Weight (kg)		262
Soundboard material		resonance spruce wood
Active soundboard area (m2)		1,112
Ribs number, shape		10, spherical
Soundboard construction		wedgewise tapered 9 mm in upper section – 7 mm in lower section
Petrof sign on soundboard		yes
Cast iron plate		wet sand casting
Petrof emblem on iron plate		cast brass
Surfacing of iron plate		light gold metallic paint, diamond effect
Pin block – material		multiplex beech plywood, density 800 – 850 kg/m3
Wooden frame construction, material		spruce wood, 3+2 posts
Cut off bar (corner cross rib) – material, number		beech, 2
Cabinet material		MDF, plywood, solidwood
Bridge – treble		solid maple wood
Bridge – bass		solid maple wood
Bridge pins		steinless steel-ground tips
Duplexes – rear		g² – c5
Agraffes material – number		brass, 88
Strings – material		steel wire Röslau Germany, copper winding Degen Germany
Hitching of plain strings		double
Dampers – number		1-70
Action		Renner-ANT. PETROF
Hammer heads		Renner
Keyboard		PETROF
Keyboard – material		tangential sawn spruce wood, individually balanced with lead
Keys balancing, touch weight		53g in bass – 51g in treble
Black keys		ebony
Pedals		left – Half-blow pedal, middle – Muffler (moderator) pedal, right – Sustein pedal
Castors		yes
Felts colour		red
Hydraulic slow close fallboard mech.		yes

Depth (mm)		646
Width (mm)		1543
Height (mm)		1360
Weight (kg)		320
Soundboard material		solid resonance spruce wood
Active soundboard area (m2)		1,2039
Ribs number, shape		11, asymetric
Soundboard construction		wedgewise tapered 9 mm in upper section – 7 mm in lower section
Petrof sign on soundboard		yes
Cast iron plate		wet sand casting
Petrof emblem on iron plate		cast brass
Surfacing of iron plate		light gold metallic paint, diamond effect
Pin block – material		multiplex beech plywood, density 800 – 850 kg/m3
Wooden frame construction, material		spruce wood, 4+2 posts
Cut off bar (corner cross rib) – material, number		beech, 2
Cabinet material		MDF, plywood, solidwood
Bridge – treble		solid maple wood
Bridge – bass		solid maple wood
Bridge pins		steinless steel-ground tips
Duplexes – rear		g² – c5
Agraffes material – number		brass, 88
Strings – material		steel wire Röslau Germany, copper winding Degen Germany
Hitching of plain strings		double
Dampers – number		led-70
Action		Renner-ANT. PETROF
Hammer heads		Renner
Keyboard		PETROF
Keyboard – material		tangential sawn spruce wood, individually balanced with lead
Keys balancing, touch weight		53g in bass – 51g in treble
Black keys		ebony
Pedals		left – Half-blow pedal, middle – Muffler (moderator) pedal, right – Sustein pedal
Castors		yes
Felts colour		red
Hydraulic slow close fallboard mech.		yes

Length (mm)		2250
Width (mm)		1580
Height (mm)		1025
Weight (kg)		511 kg
Sound board material		resonance spruce wood
Sound board active area		1,385 m²
Ribs (number, shape)		16, asymetric
Soundboard construction		diaphragmatic tapered by CNC shaper 9,5 – 6,5 mm
Cast iron plate		wet sand casting
Surfacing of iron plate		gold metalic paint, diamond effect
Pin block – material		hard rock maple from Canada
Inner rim material		beech wood
Inner rim thickness		50 mm
Wooden frame posts		spruce-beech laminated, 4 longitudinal + 1 cross
Descant post material		beech wood
Cut off bar (corner cross rib)		round shape, multiple beech
Outer rim – material		birch plywood sandwich, inner veneer: Olive wood
Bridge – treble		solid maple wood
Bridge – bass		solid maple wood
Bridge pins		stainless steel-ground tips
Agraffes (material, number)		brass, gold plated, 1-53
Duplexes – front		d2 – c5
Duplexes – rear		f1 – c5
Strings – material		steel wire Röslau Germany, copper winding Degen
Hitching of plain strings		single
Dampers – number		1-69
Action		Renner
Hammer heads		Renner
Keyboard		spruce wood, individually balanced keys
Keys balancing, touch weight		55g in bass – 50g in treble
Black keys		Ebony wood
Pedals		Unacorda (Piano) pedal, Sostenuto (Prolongement) pedal, Forte pedal
Castors		brass, braked castors
PETROF sign on right side wall		ANT. PETROF
Felts colour		red
Hydraulic slow close fallboard mech.		yes

Length (mm)		2750
Width (mm)		1580
Height (mm)		1025
Weight (kg)		690
Sound board material		resonance spruce wood
Sound board active area		1,880 m²
Ribs (number, shape)		16, asymetric
Soundboard construction		diaphragmatic tapered by CNC shaper 9,5 – 6,5 mm
Cast iron plate		wet sand casting
Surfacing of iron plate		gold metalic paint, diamond effect
Pin block – material		hard rock maple from Canada
Inner rim material		beech wood
Inner rim thickness		50 mm
Wooden frame posts		spruce-beech laminated, 4 longitudinal + 2 cross
Descant post material		beech wood
Cut off bar (corner cross rib)		round shape, multiple beech
Outer rim – material		birch plywood sandwich, inner veneer: Olive wood
Bridge – treble		solid maple wood
Bridge – bass		solid maple wood
Bridge pins		stainless steel-ground tips
Agraffes (material, number)		brass, gold plated, 1-53
Duplexes – front		d2 – c5
Duplexes – rear		d1 – c5
Strings – material		steel wire Röslau Germany, copper winding Degen
Hitching of plain strings		single
Dampers – number		1-69
Action		Renner
Hammer heads		Renner
Keyboard		spruce wood, individually balanced keys
Keys balancing, touch weight		55g in bass – 50g in treble
Black keys		Ebony wood
Pedals		Unacorda (Piano) pedal, Sostenuto (Prolongement) pedal, Forte pedal
Castors		brass, braked castors
PETROF sign on right side wall		ANT. PETROF
Felts colour		red
Hydraulic slow close fallboard mech.		yes

Technical specifications ANT.PETROF 136

Technical specifications ANT.PETROF 136

Technical specifications ANT.PETROF 225

Technical specifications ANT.PETROF 275

Premium pianos

ANT. PETROF 275

ANT. PETROF 225

ANT. PETROF 136

ANT. PETROF 126

REFERENCES

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