Specializing in the Repair, Maintenance, and Optimization of Guitar Amplifiers, Pickups, and Recording Electronics

Vintage and Tube Amplifiers
· Vintage Restoration
· Silverface to Blackface Conversion
· Biasing
· Replacement of Filter Capacitors
· Tune Up and Voicing
· Re-Tubing

Expert Repair and Testing of Recording Electronics
· Repair, Service, and Modification of Recording Electronics
· Microphone Preamplifiers
· Compressors
· Equalizers
· Laboratory Testing of Audio Equipment
· Frequency Response
· Total Harmonic Distortion (THD)
· Inter-Modulation Distortion (IMD)
· Harmonic Analysis (FFT)
· Spectral Analysis (FFT, Histogram)
· Impulse Response
· Rise Time and Bandwidth

Guitar Pickup Repair, Customization, and Design Services
· Pickup Re-Winding
· Repair of Damaged Pickups
· Custom Design and Winding
· Vintage Restoration

About:
Bryan Martin is a 25-year veteran of professional audio, studio recording, and vacuum tube and solid-state electronics design and maintenance. His electronics training began in 1986 at Platinum Island Recording studios in Manhattan. The world of tube electronics was opened by chief tech Carl Faruggia who had formerly worked for Les Paul.
As a record producer through the 80s and 90s, he bounced back and forth across the Atlantic between New York and London accumulating an extensive collection of vintage guitar amplifiers and recording equipment all in need of love and attention. In the late 1990s, as a partner in Excello Recording in Williamsburg, Brooklyn and its bursting indie scene, he was responsible for Neve, Studer, API, Calrec, Pultec, UREI, EMT, and Teletronix recording electronics as well as a constant parade of vintage and current guitar amplifiers.
In 2002 he migrated to Montreal where he took up life as owner and chief mastering engineer of Sonosphere Mastering (www.sonosphere.ca ) Sonosphere and heading his own R&D projects, into tube amplifier design, audio transformer design, and guitar pickup design.