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Expert Electronic Repair & Custom Cables in Newington
At UpScale Music, we specialize in delivering exceptional repair, design, and consultation services for musical instruments and electronic equipment. With decades of combined experience, our team of musicians, engineers, and technicians is dedicated to resolving technical challenges while prioritizing customer satisfaction. We manufacture premium custom cables with harmonically transparent components, ensuring optimal sound quality for discerning musicians. Our expertise extends to vintage tube amplifiers, pedal boards, recording studio systems, and guitar electronics, serving both professional and amateur artists.

Founded on the principle that customer service is paramount, we guarantee superior outcomes through personalized solutions. Our clients benefit from our deep industry knowledge, honed through partnerships with leading brands and extensive hands-on experience in audio engineering and instrument repair.
Services
Electronic Repair Custom Cable Manufacturing Guitar Repair Amplifier Preservation System Design Pedal Board Wiring Vintage Amp Repair Recording Studio Systems Fret Polishing Acoustic Treatment
Highlights and features
  • We offer over three decades of experience in musical electronics repair.
  • Factory-authorized service center for major brands like Fender and Marshall.
  • Custom cables handcrafted with premium Canare/Mogami components.
  • Expertise in vintage tube amplifiers and modern recording studio systems.
  • Comprehensive consultation for pedal board design and acoustical treatment.
Services
Electronic Repair
Expert repair for tube amps, mixers, effects processors, and vintage gear. We restore functionality to modern and classic equipment using industry-standard practices. Our technicians ensure optimal performance through thorough diagnostics and component replacement.
Custom Cables
Handcrafted cables using Canare/Mogami wiring and Neutrik connectors for superior sound clarity. Made-to-order lengths and configurations serve musicians, engineers, and audiophiles requiring pristine signal transmission with minimal sonic interference.
Guitar Maintenance
Comprehensive guitar/bass service including fret polishing, fingerboard conditioning, truss rod adjustments, and electronics cleaning. Our 'Guitar Spa' restoration ensures instruments perform flawlessly according to individual playing styles and preferences.
System Design
Custom pedal board and recording studio systems tailored to professional or home setups. We design complete signal chains and acoustic treatments while providing ongoing support for evolving technical requirements.
Vintage Amplifier Repair
Specialized preservation of classic amplifiers through meticulous cleaning and component replacement. We maintain historical integrity while improving reliability, ensuring these instruments continue delivering authentic tonal characteristics for musicians.
People
Mario L. Sousa, Jr.
Founder
Mario holds an Electronic Engineering Technology degree and studied music theory at Berklee College. With 20+ years as a senior technician for Sennheiser and Neumann, he brings deep expertise in audio engineering and vintage gear restoration.
Questions
Do you repair vintage amplifiers?
Yes, we specialize in restoring classic tube amplifiers with methods that preserve their historical character while enhancing reliability and performance.
Can you create custom audio cables?
We manufacture custom cables using premium components, including Canare/Mogami wiring and Neutrik connectors for optimal sound quality.
What guitar maintenance services do you offer?
Our 'Guitar Spa' service includes fret polishing, fingerboard conditioning, truss rod adjustments, and electronics cleaning tailored to individual playing styles.
Do you provide consultation for recording studios?
We design complete recording systems, including acoustic treatments, and provide guidance to ensure equipment optimally supports creative workflows.
Are you an authorized service center?
Yes, we are factory-authorized for major brands including Fender, Marshall, Roland, and Yamaha.
Reviews (5)
Jonathan Reisbaum
Apr 21, 2022 Report
My vintage guitar with an out of production pre-amp was expertly repaired for a fair price. Thank you Mario.
Don Arnett Jr
Feb 07, 2022 Report
I recently picked up an old Trace Elliott off reverb and channel 1 had a loud buzz. Contacted Upscale music after reading good reviews. Mario was very friendly and fixed my amp in a good amount of time and for a good price. He has a lot of cool amps there even one I never seen before. Definitely will be bringing more work his way
Bill Katz
Jan 16, 2022 Report
I don't like giving negative but Mario burned me for $50. And I gave him a chance to fess up. Briefly, I needed pre amp work done on my guitar. He took a deposit and after some time, I called him to pick it up and he told me he was backlogged. No problem on my part I have other guitars. Later, my money tightened and I called him to not work on the guitar and that I would bring it back in spring or summer.

He didn't respond. When I came to pick up my instrument, he told me I couldn't have my deposit returned because he had started diagnostics on it which was a lie. But I was truthful telling him that I would return it at a later date. I won't ever trust him again and there are other honest guitar repair folks around. He wasn't cool. Sure he gave me a set of strings as a consolation prize. I had bought from Mario before but never will return.

He lost my patronage. I told him the truth about my willingness to return at a later date and he lied to me in return. And he kept giving different repair costs the lowest given when I picked up my guitar but by that time I had lost confidence in his business ethics. I'm self employed and I would never treat any customer in this manner.
Michael Mulhern
May 21, 2021 Report
Knowledgeable person, who likes to get into his projects. Need things worked on reconfigured or upgraded, hes the guy to talk to. Fender also highly recommended him
Montgomery Wilt
May 02, 2021 Report
Usually no one looks forward to taking anything in for service, but opposite can be said about taking my amps into Upscale Music. Not only is Mario just a great and personable guy, but my amps always come back to me in the the best shape. He goes the extra mile and it shows.