Transformers for
Audio Production & Sound Systems
No piece of audio equipment performs at its best without a well‑designed transformer. From the microphone in a vocal booth to the paging speaker in a hospital corridor, magnetic components shape the clarity, tone, and reliability of every signal path. Since 1974, Custom Magnetics has engineered audio transformers for recording studios, music production, live sound systems, intercom networks, and large‑facility communication systems across the country.
Our transformers are built to deliver clean headroom, extended frequency response, low distortion, and dependable performance in environments where sound quality and reliability matter.
Transformers for Recording Studios and Music Production
A recording studio lives and dies by sound quality. Every signal path relies on transformers for impedance matching, signal balancing, and noise rejection. A poorly designed transformer introduces hum, smears transients, and reduces clarity; issues that engineers and musicians immediately hear.
Custom Magnetics designs audio transformers that preserve the integrity of the source signal. We use carefully selected core materials, precise winding geometries, and tight tolerances to deliver the performance required for vintage console restorations, modern interfaces and preamps, high‑end microphones and studio‑grade outboard gear.
Transformers Voiced for Musical Style
The transformer actively shapes the feel and response of music equipment. Push‑pull and single‑ended output transformers behave differently under load, influencing tone and dynamics. For example, hard rock music demands tight low end and punchy attack, achieved with low leakage and stiff regulation. Read more about how the transformer affects the tone in our blog Push-Pull vs. Single Ended: How the Iron Shapes Hard Rock, Blues, and Funk.
We work directly with builders and technicians to match core size, air gap, primary inductance, and copper resistance to the intended playing style. The result is a transformer that feels right under the fingers and sits perfectly in the mix.
Transformers for Sound Systems, Intercoms & Call Stations
Clear communication is critical in hospitals, schools, auditoriums, factories, warehouses, clean rooms, and large commercial buildings. These environments rely on transformers that deliver consistent clarity, stable output, and long‑term reliability.
Facility Sound Systems
Custom Magnetics builds transformers used in distributed audio systems where announcements, alerts, and background music must remain intelligible across large spaces. Our designs support public address systems, auditorium sound reinforcement, multi‑zone paging networks, and emergency communication systems.
Chokes and Power Supply Components
The power supply choke shapes the noise floor and note envelope, yet it is often overlooked. A choke that’s specified in the right way reduces hum, smooths out bloom and keeps the low end steady.
We build chokes with the same engineering rigor as our audio transformers, offering options for inductance (H), DC resistance (DCR), core material and gapping. Custom Magnetics can spec chokes alongside output and power transformers so the entire supply feels intentional; whether you need higher DCR for vintage sag or lower DCR for modern punch.
Built for Studios, Stages, and Large Facilities
Recording studios, live sound rigs, and facility communication systems demand reliability. A transformer that fails mid‑session or buzzes during a quiet announcement is unacceptable.
Custom Magnetics manufactures transformers in North Manchester, Indiana, with FAI documentation, dedicated fixtures, lot traceability and production runs from 5 to 20,000 units. We provide drawings, test limits, and tolerances your amp techs, integrators, and contract manufacturers can actually use, essential for both vintage equipment servicing and new product development.
Partner with an Audio Transformer Expert
Custom Magnetics holds ISO 9001:2015 and ITAR certifications and has built a reputation on engineering expertise and consistent quality. We design transformers for audio amplifiers, recording and broadcast equipment, intercom and call systems, voice and music reproduction equipment and large‑facility sound systems.
If you are building or servicing equipment for music production, live sound, or facility communication, talk to us. We will help you select or design the right transformer for the job.