About Us
Olly’s interest in electronics began at an early age, inspired by his passion for the RAF’s fast jet squadrons, particularly Tornado GR4s. His fascination with the engineering behind the jets, combined with his experience playing guitar, sparked an interest in live sound production equipment. As a teenager, he started modifying guitars and effects pedals, which soon progressed to designing his own electronics using analogue components, basic logic, microcontrollers, and software—a pursuit he carried through school and into university.
Olly studied at the University of Glasgow, earning a Master of Engineering (MEng) in Electronics and Electrical Engineering with Music, a degree combining both disciplines. His studies included digital signal processing, audio programming, and analogue/digital electronics.
During his degree, he undertook a six-month placement at Leonardo MW in Edinburgh, focusing on advanced radar technology. While at university, he founded Fretronics Audio, initially offering guitar and effects pedal repairs. By the time he graduated, Fretronics Audio had built a strong reputation, making it a natural step to transform it into a full-time business.
Aritz is a passionate and skilled musician who graduated with a first-class BSc (Hons) in Audio Technology from Glasgow Caledonian University. With a strong foundation in electronics, Aritz developed expertise through advanced coursework shared with Electronics Engineering students, covering topics such as analogue and digital electronics, electrical principles, signals and systems design, and digital signal processing.
A lifelong curiosity about the inner workings of audio equipment, having begun playing guitar at age 10, inspired Aritz to explore electronics deeply, starting with dismantling and reassembling old radios and gear. This passion culminated in an innovative honours project—a multi-effects pedal designed with proximity sensors to dynamically adjust effect parameters in real time.
Drawn to Fretronics Engineering’s dedication to high-quality repairs and customer satisfaction, Aritz is committed to contributing his expertise and enthusiasm to the company, delivering precise and reliable solutions for every project.
The Workshop
The Bench – The Heart of Our Workshop
At the core of our workshop are three fully equipped, state-of-the-art workbenches, designed to meet the highest professional standards. Each workstation is fully ESD-safe, ensuring the highest level of protection for sensitive electronic components. These spacious benches are equipped with all the advanced test equipment we rely on, from precision measurement tools to diagnostic instruments, enabling us to tackle even the most complex repairs.
Their generous size allows us to work effortlessly on a wide variety of equipment, from compact devices to large mixing desks, with accuracy and efficiency. These workstations are purpose-built to deliver outstanding results, whatever the task.
Advanced Test Equipment for Precision Engineering
Our workshop is equipped with industry-leading tools to ensure precise diagnostics and repairs. High-resolution oscilloscopes from Siglent, Rigol, and Gould enable detailed waveform analysis, while signal generators from Siglent and Feedback provide accurate signal testing. Fluke and GW Instek multimeters deliver precise voltage, current, and resistance measurements, supported by stable power from Siglent and Manson bench DC supplies.
For high-power amplifier testing, our custom-built load boxes handle stereo 2/4/8/16Ω loads at 800W and 1600W. Precision soldering and desoldering tools from Pace, Weller, and Aoyue ensure exceptional craftsmanship, while the AVO VCM MKIII valve tester is indispensable for analysing vintage and high-fidelity amplifiers.
All equipment is regularly PAT tested, calibrated, and ESD safety-checked, ensuring every repair meets the highest industry standards for reliability and performance.
Our workshop is equipped with a range of specialised machinery, supporting our expertise in repairing, designing, and customising audio electronics. Key equipment includes a pillar drill for precise mechanical work, an ultrasonic cleaner for environmentally friendly cleaning of delicate audio components, and a custom-modified reflow oven for PCB assembly and repair. These tools allow us to restore even the most complex audio systems—such as amplifiers, mixers, and signal processors—to peak performance with exceptional precision.
We also utilise advanced CNC machines to create intricate, repeatable parts essential for prototyping and repairing audio equipment. Our spray booth ensures we can provide high-quality finishes for custom enclosures, maintaining durability and the professional aesthetics required for live and studio environments.
For larger-scale projects, we work with trusted sheet metal fabrication partners across the UK, producing bespoke enclosures and panels tailored specifically for audio applications. This enables us to meet the precise requirements of our clients, whether for custom rack-mounted systems or unique housings for specialist audio equipment.
Our expertise goes beyond repairs to include designing bespoke audio electronics, from circuit-level innovations to complete system prototypes. Whether restoring vintage amplifiers, upgrading studio equipment, or creating custom solutions for live sound, we combine advanced engineering techniques with sustainable practices. By optimising materials, extending equipment lifespans, and minimising waste, we ensure our work is both highly effective and environmentally responsible.
This combination of precision, innovation, and sustainability makes us a trusted partner for all audio electronic repair and design needs, from individual components to fully customised systems.