COLT Sonic Acoustic End-button 90º
COLT SONIC – Acoustic End-Button for Cello, developed by FASTER, incorporates an elaborate, compact and complex design that enhances the sound and timbral quality of the cello in addition to increased harmonics and ease of acoustic emission.
COLT SONIC works on the cello as an “all-in-one”: Inhibits the dispersion of vibrations, enhances the radiated energy, amplifies sound production and distributes and organizes the frequency spectrum.
COLT SONIC – Acoustic Cello End-Button reproduces the vibrations of the cello’s lower body and other adjacent parts, generating a remarkable amount of acoustic power and contributing to the growth of harmonics that are reinforced by increasing the sound intensity.
It inhibits the dispersion of vibrations, avoiding the loss of a large part of the energy acoustic produced by the cello as well as the transfer of unwanted frequencies and transmits the recovered energy acting as a passive amplifier through the cello endpin.
COLT SONIC is the ideal complement to the FASTER Artica, Dorna or Meiga Acoustic Endpin for Cello and BELTON Acoustic Stoppers. The combination of these three elements undoubtedly offers a vast amount of quality sound and a greater ease to execution.
When installing your COLT SONIC on a different cello, simply purchase a replacement COLT Cone, adapt it to the new instrument, and fit your COLT SONIC in.
Taxes / VAT and shipping not included
Acoustic and Structural Characteristics:
Single measure and suitable for any 10mm diameter cello endpin and extreme weight reduction at only ±47gr.
It offers great comfort and precision in opening and closing, exerting a high amount of coupling force with only ± half a turn of the tightening knob.
Simple mounting system through an easily adaptable universal cone (from ∅ 25 to 28mm).
Made of Composite material with high dimensional stability, excellent hardness and density that favors the speed of sound propagation. This material has a high resistance to traction, deformation and friction wear.
Simple mounting system through an easily adaptable universal cone (from ∅ 25 to 28mm).
Made of Composite material with high dimensional stability, excellent hardness and density that favors the speed of sound propagation. This material has a high resistance to traction, deformation and friction wear.
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Alberto Menchen
Concertmaster - Orchestre Philarmonique de Liège & WDR Sinfonieorchester Köln – Germany
I have installed the FASTER Titanium in three violins that date from 1663, 1850, and 2012. Thanks to this great invention, the sound qualities have improved in all of these instruments.
FASTER inspires me and helps me do more with less.
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Linus Roth.
Violin soloist – Germany
Dear José María, thank you for the FASTER Titanium for my Stradivari violin.
It is a cool invention!
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Helena Poggio
Cello soloist - Quiroga Quartet - Professor of Chamber Music of the Royal Superior Conservatory of Music in Madrid
I am delighted with my new FASTER Artica titanium cello endpin and with the Belton Grafit cello end pin stopper. I feel how the vibrations of my instrument have increased in contact with my body, with the ground and around it. The harmonics have increased notably and my cello has a greater projection without losing its usual warmth, transmitting a round, clean and enveloping sound.
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Paçalin Zef Pavaci
Guest Concertmaster Philharmonia Orchestra – London. Concertmaster Teatro Real – Madrid., Maggio Musicale Fiorentino, Orquesta Nacional of Spain, Liceu – Barcelona, Guest Profesor Showa University – Tokio, San Carlo – Napoli, etc.
Dear friends and colleagues,
The first time they told me about Master Lozano’s FASTER Titanium, I was quite skeptical and incredulous. Now it is installed on two of my violins, one old and one modern. The change with the FASTER has been incredible with no less than 30% sound, projection, harmonics, tonal richness, and great playability.
José María I’m super happy with your genius . Thank you, thank you, thank you!.
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Roberto Mazzola
Violin teacher at the Integral Institute of Cogoleto - Liguria - Italy Violinist of the Symphony Orchestra of the Carlo Felice Theater in Genoa – Italy
Dear Maestro, I wanted to tell you that Professor Fabbris had already put the Faster on my “Augusto Pollastri” from 1925 with excellent results!
Then after I had my Cremona luthier do the work of closing and reopening the button hole (because it was too big), he finally inserted the Faster into my second instrument as well (a 1917 “Serafino Casini” published in the book “La Grande Liuteria Italiana” by A.Versari), obtaining a much more homogeneous and powerful sound for this instrument too!
Thank you again for your wonderful invention and for your great work.
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Ana Maria Valderrama
Violin soloist – Madrid – Spain
I have been pleasantly surprised by the FASTER Silver. My violin sounds clearly cleaner and rounder, and I find it much easier to play. I can achieve the same effects as before with much less effort, and it helps me find greater sonic freedom. In addition, the harmonics sound clearer, which translates into greater projection. A great discovery!
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Mirka Scepanovic
Violin soloist – Concertmaster of the Sinfonietta Basel and Camerata Variabile (Basel). Artistic and Musical Director of the National Orchestra of Montenegro.
My first meeting with Mr. Jose Maria Lozano was a unique experience in the best possible way. He opened me the door to the world of new sound options and I believe this is only the first step in the search for an amazing sound quality.
I can only recommend his FASTER Sound Systems for violin, so please try it and let yourself begin a new journey with your instrument. Sincerely,
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Silvina Álvarez
Principal violist – Orquesta Nacional de España - Madrid
My experience with the Viola FASTER Titanium is always highly satisfactory.
I consider that the gain in resonance, in tone, in volume, harmonics and consistency in the sound, makes it an absolutely innovative accessory and to take into account when setting up an instrument, of course by the hand of a master luthier of the quality of José María Lozano.












