Mono and Dual Models of Active FET and Passive Designs
September 29, AES 2016 — 
TELEFUNKEN Elektroakustik is introducing four new direct boxes at AES, including mono and dual models of both active FET and passive designs.
The TELEFUNKEN TDA-1 (mono) and TDA-2 (dual) are newly designed active FET direct boxes that employ discrete Class-A FET circuitry coupled with a high quality transformer that provides the perfect balance between clean, high headroom performance and warm, saturated tone.
The TELEFUNKEN TD-1 (mono) and TD-2 (dual) are new passive transformer direct box designs that combine premium quality components with a rugged construction to create a reliable DI with rich, warm character.
In the heart of each new TELEFUNKEN direct box design are custom-wound output transformers by OEP/Carnhill, made in the UK. The circuit boards feature gold-plated traces for maximum conductivity and are hand-assembled exclusively with through-hole components providing a secure and reliable connection compared to common surface-mount technology.
The circuits are housed in an extremely durable extruded aluminum enclosure with recessed heavy-duty metal toggle switches to engage a -15 dB pad and ground lift. The rugged construction is virtually indestructible, able to easily withstand the wear and tear of gigging. The simple and elegant design approach delivers a new standard in reliability and performance for direct boxes.
Watch the TELEFUNKEN scientists attempt to destroy the new product:
https://www.youtube.com/watch?v=rZrvObADddk&feature=youtu.be
All four direct box designs are scheduled to start shipping in early December 2016.
See the entire line of TELEFUNKEN microphones and the new DI Boxes
at AES Booth #1115