Pro Audio Transformers
Made in the UK
A direct box transformer is a key component in a direct injection (DI) box, a device used to connect high-impedance, unbalanced audio sources (like electric guitars, basses, or keyboards) to low-impedance, balanced inputs (like those on mixers or audio interfaces). The transformer inside the DI box performs several critical functions to ensure clean, noise-free audio signal transfer.
Used in audio systems to interface line-level signals with the input stages of amplifiers, mixers, or other equipment. Its primary purpose is to optimise signal transfer, provide electrical isolation, and minimise noise and interference in audio systems.
Audio transformer used to couple the output stage of an amplifier, mixing console, or other line-level device to the input of another device, while maintaining signal integrity, providing electrical isolation, and optimizing impedance matching.
Used in audio applications to connect a microphone to an audio input without heavily loading the microphone's output. It is designed to "bridge" the connection by presenting a high impedance to the microphone while driving the input stage of the connected device effectively.
Transformer designed to interface microphones with the input stage of audio equipment, such as mixing consoles, preamplifiers, or recording devices.
Amplify the low-level signal from a moving coil (MC) phono cartridge used in turntables. MC cartridges are prized for their superior sound quality but produce very low output voltages, typically in the range of 0.2 mV to 0.5 mV, which is much lower than the output of a moving magnet (MM) cartridge. The transformer boosts this signal to a level suitable for standard phono preamplifiers.
Type of transformer that uses a doughnut-shaped core made of magnetic material. Converts mains power to lower voltages, in order to power your audio circuitry.
Transformer designed to interface microphones with the input stage of audio equipment, such as mixing consoles, preamplifiers, or recording devices.
British Engineering
Designed, manufactured, and 100% tested in Oxfordshire, UK.
Extensive Experience
Over 40 years experience in the pro audio market, delivering quality to some of the biggest industry brands.
Quality Controlled
ISO 9001 company with rigorous quality and testing procedures.
Custom Design
Your studio and consumer applications designed in our in-house lab.
Our Mission is to deliver the world's best audio transformers
Introducing VTX Pro, a new name in high-end audio transformers, crafted to meet the demands of professionals who refuse to compromise on sound quality. Designed and manufactured in the UK, our audio transformers are built on a foundation of 40 years technical expertise, innovation, and a relentless commitment to sound excellence.
Engineered in the UK, Built to Last
At VTX Pro Audio, we take pride in our British engineering. Everything we create is designed, manufactured, and tested right here in our Oxfordshire facility. This hands-on approach means we can guarantee the quality and reliability of every product that leaves our doors.
Decades of Know-How
With over 40 years in the pro audio industry, we’ve built a deep understanding of what works—and what doesn’t. We’ve collaborated with some of the biggest names in the business, and that experience shapes everything we do today.
Precision You Can Trust
We’re ISO 9001 certified, and we don’t take that lightly. Every part we produce goes through strict quality control and thorough testing. It’s how we ensure consistent performance and long-lasting reliability across our entire range.
Tailored Innovation, No Limits
We love a challenge—especially when it comes from our customers. If you have a unique requirement or an idea that pushes the boundaries of conventional design, we’re all ears. Our in-house lab is fully equipped to develop tailored solutions that meet even the most demanding specs. Bring us your toughest brief—we’ll turn it into something exceptional.