United Studio Technologies UT Tube67

The UT Tube67 is United's faithful homage to one of the most in-demand mic designs of all time. The original classics have shaped the sound of countless classic recordings since their debut 1960; renowned for velvety, creamy, full-bodied tone. The UT Tube67's provides a warm, intimate quality that only can be delivered by it's 1960s NOS EF86 vacuum tube.  Linear response across polar patterns ensures versatility, excelling in capturing strings, woodwinds, brass, piano, drums, and both acoustic and electric guitars.

United has taken this classic-specification design to the next level with component-level attention to detail, as well as including a switchable Air Modification prefered by many classic recordists.

The UT Tube67's capsule is a custom-made, historically correct dual backplate/diaphragm capsule; skinned in a laboratory clean-room environment and 24k gold-sputtered on 6 micron Mylar. It has been optimised for the microphone's operating voltage, and tuned to it's ancestors' specification; resulting in a smooth sound without the resonance that is found on most modern reproductions. The difference in comparison to other reproductions is incredible.

United based it's design on a 1970s-made capsule that we found to be the best we had ever heard, providing a little more natural low to low-mid range frequency.

The custom-wound, US-made, UT-BV12 transformer is wound to our own specifications and set to the same laminations historically used on the original parts. Careful measurements were made from a golden speciman of the original transformer, delivering the same tight bass response legendary to the original.

United used all high-nickel alloy laminations and employed a copper Faraday shield for reduced Radio Frequency Interference (RFI). While we could have used a smaller or less expensive transformer, United’s design team refuses to compromise.