Yamaha grand piano model C7




Yamaha C7



Conservatory Concert Collection

7' 6" Grand Piano

 

 

 

 


Features  |  Specifications

 
Long a preferred choice of knowledgeable pianists, Yamaha C Series grand pianos set the standards by which other grands are measured. Today's C Series, recently redesigned to incorporate a host of new refinements, offers a balanced selection of seven outstanding instruments all at a single high standard of professional performance.

Appearing on famous concert stages, international competitions and prestigious music events throughout the concert world, the Conservatory Collection Grand Pianos have long been the heart of the Yamaha grand piano line, offering superb sound, broad dynamic range and fine expressive control. Their classic styling and careful craftsmanship make them an elegant accent to any decor.

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Features

Over a century of distinguished grand piano making

Fully redesigned at the turn of the millennium, today's C Series grands benefit from a host of recent Yamaha advances. Unparalleled in their beauty and musical range, grand pianos are the ultimate expression of the piano maker's art. Embodying over 100 years of accumulated expertise, these instruments epitomize the quality, performance and value for which Yamaha has long been renowned, as we enter the second century of Yamaha grand pianos.

Tonal quality and performance

· Refinements in copper-wound string specifications deliver purer, more perfectly pitched and harmonious bass.

· Barrel-shaped treble hammer shanks, similar to those of the concert grand, improve dynamic and tonal response.

· Bridges crafted from choice, finely grained woods, selected to complement each scale design, provide superior sound transmission.

· Rim specifications attuned to the characteristics of each model optimize strength, stability and resonance.

· Model-specific production enables more-focused tuning, voicing and regulation, for optimal long-term performance.

· Precise note-by-note strike point alignment produces crisper, clearer tones.

Heightened precision in damper installation offers superior pedaling and expressive control.

Crafted with uncommon care and integrity

Yamaha grand pianos have earned a global reputation as instruments of outstanding quality and value. Renowned for their eloquent expressive range, and for their reliable performance over time, they play an important role in the performing arts and music education. They are consistently among the pianos most highly recommended by piano tuner/technicians and a leading choice of pianists at all levels, all over the world.

The Yamaha reputation rests on a century-long tradition of uncompromising care and craftsmanship, supported by an unmatched range of integrated expertise, top-of-the-line production facilities, and an exceptionally skilled, knowledgeable and dedicated workforce. Our strength in the full range of relevant technologies allows us to produce virtually every part of every piano ourselves – an approach that has helped us initiate significant advances and set what has long been recognized as the industry standard in quality control.

An open dialog with professional musicians generates invaluable input that, in conjunction with sophisticated research facilities, has led to continual advances in each new generation of Yamaha pianos. Our global network offers Yamaha customers additional advantages, from cost-efficient regional manufacturing to the ready availability of sales and support throughout most of the world.

Balancing cutting-edge technology and innovation with the timeless skills of expert artisans, Yamaha pianos have come to represent an unsurpassed standard of affordable excellence. It is a standard that continues to generate ever-higher acclaim and make Yamaha grand pianos the first choice of many of the world's most discriminating pianists.

Safety

In addition to Soft-Close™ fallboards, lid prop safety stops prevent incorrect prop positioning, protecting against accidental injury or damage.

A triumph of timeless artistry and technical sophistication

Today's C Series grands also incorporate all of the quality construction features found in prior C Series models.  Rims are formed from layers of select woods, laminated into shape in special presses, then seasoned to allow the wood to stabilize.    Sturdy back posts are joined in a radial configuration and fitted to the rim using exceptionally strong and stable dovetail joints, enhancing both the pianos durability and the integrity of the acoustic chamber.

Iron plates, the internal frame of the piano, are cast in a vacuum molding process that virtually eliminates flaws and imperfections, then attached with an adjustable mounting system that allows precise control over string downbearing – critical for the best tonal performance. A metal tone collector connects the back posts to the plate, reflecting sound energy back through the case for a fuller, more sustained resonance.

Soundboards are crafted from select clear spruce and cured in a proprietary process that ensures a durable, natural crown. This is further reinforced with full-length spruce ribs, securely mortised and glued into the inner rim. Bridges are formed from fine-grained hardwoods chosen for optimal sound transmission, and precisely notched and pinned to carry the strings.

Produced from special steel and pure copper wire, strings are installed with the aid of special equipment for consistent, even tensioning. Duplex scaling, which tunes non-'speaking' lengths of the strings, enriches primary tones with complementary harmonics.

Pinblocks, where the tuning pins are set, are made from layers of dense hardwoods, bonded in a process that seals against fluctuations in humidity. The pins themselves have lathe-cut, rather than roll-pressed, threads, to ensure the best grip in the pinblock, and are nickel plated to resist corrosion. Together with the integrity of structural components, these features help to give Yamaha pianos an exceptionally high level of tuning stability, assuring better sound between tunings and requiring minimal regular maintenance.


Built to the highest standards to assure lasting value

The legendary Yamaha action mechanism is built to ultra-precise tolerances on aluminum alloy rails – unaffected by changes in temperature or humidity – for superb response, rapid repetition and years of trouble-free playing enjoyment. Designed for each model, hammers are made from top-quality felt, glued and T-fastened to hardwood heads and shanks, profiled to match the characteristics of each model. Matched key sets cut from solid spruce blocks are fitted with durable hardwood key buttons, faced with optimal tactile surfaces, and precisely balanced and laser-leveled for uniform travel and response.

Yamaha piano cabinetry is designed and constructed for long-lasting beauty, with a multi-layer polyester or lacquer finish that provides maximum protection against wear, sun, heat, spills and humidity. All fittings, including solid brass pedals and casters, are engineered for both beauty and functionality, with special protective features like soft-close fallboards and lid prop safety stops.

Finally, every Yamaha piano undergoes exceptionally thorough preparatory procedures. Skilled technicians tuner, 'voice' and regulate each instrument repeatedly over the course of construction, aided by a 'mechanical pianist' that plays every key hundreds of times, enabling the strings and action components to normalize between these procedures. Each instrument is allowed to rest in a controlled environment approximating that of its destination, then sealed in an airtight envelope to ensure optimal condition on arrival.

The end results of this painstaking craftsmanship are instruments at the peak of their musical potential that will provide generations of pleasure to their new owners – pianos, in short, that live up to the superior standards that Yamaha owners expect.


Seasoned for Destination

Yamaha specifically seasons this piano for the U.S. market. The tuning stability, finish and overall musical integrity are enhanced over the long life expected of a fine piano.

Permanent Crown Solid Soundboard

Yamaha utilizes a process that creates a permanent crown in the soundboard and at the same time minimizes soundboard cracking. Customer can feel confident that not only will the piano last for years, but the beautiful sound of a Yamaha piano will last a lifetime.

Solid Spruce Soundboard

At the Yamaha lumber mill and wood processing facility, the finest spruce is quarter sawn; and less than 10% of the total is selected and reserved for Yamaha piano soundboards. Solid spruce, rather than laminated spruce or poplar, is the choice in all fine pianos for the best amplification of sound, best tone and sustain.

Full Length Ribs

Yamaha reinforces the crown in its soundboards by using ribs that continue to the edge of the soundboard, and are glued into the notched liner (or inner rim on the grand piano). Reinforcing the crown ensures that the tone quality will remain for years and years and improves tuning stability.

V-Pro Plate

Yamaha uses V-Pro (Vacuum shield Mold Process) in casting the iron frame (plate). V-Pro plates are stronger and visually more appealing. Critical dimensions are produced more accurately than before.

Extruded Aluminum Action Rails

Yamaha engineering developed a unique Extruded Aluminum Alloy Action Rail (bearing a Yamaha patent) that is one of the best innovations for improving a piano action in the last 100 years. The usual fluctuations in wood rails that effect touch, caused by periodic weather changes, are eliminated allowing stable, long-lasting action regulation.

Balanced Action

Each key of a Yamaha piano is individually tested and measured for the corrections needed to obtain uniform "down weight" pressure. Yamaha actions play correctly and uniformly. This balancing helps ensure a lifetime of superior touch and control across the keyboard.

Uniform Key Travel

Yamaha designs all grand and vertical pianos to have the same key travel. Regardless of size, type or model of Yamaha piano, the keyboards will always feel the same.

Spruce Keys

Yamaha uses Spruce for the keys on all models of pianos. Spruce is very light and possesses a very high ratio of strength to weight. It is ideal for key construction, even though its cost is greater than either sugar pine or bass wood. Yamaha keyboards withstand heavy use over years of fortissimo passages.

Finishes
Polished Ebony (shown), Satin Ebony and Polished Mahogany

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Specifications

 

           
  Dimensions     Length: 7' 6" (227 cm)
Width: 61" (155 cm)
Height: 40-1/2" (102cm)
 
           
  Weight     913 lbs. (415 kg.)  
           
  Duplex Scaling     Yes  
           
  Tone Collector     Yes  
           
  Key Surfaces     White: Ivorite
Black: Wood Composite
 
           
  Music Desk Positions     5  
           
  Lid Prop Positions     3  
           
  LID PROP SAFETY STOP     Yes  
           
  Lid Edge     Sculptured  
           
  Soft-Close Fallboard     Yes  
           
  Lid/Fallboard Locks     Yes  
           
  Center Pedal     Sostenuto  
           
  Cabinet Finishes     Polished Ebony, Satin Ebony and Polished Mahogany  
           
  Also available as:     Silent Piano: C7S
Disklavier Mark IV Series: DC7M4, DC7M4 PRO
 
           

*Specifications are subject to change without notice.

 

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