Telefunken TDA-2 Dual-Channel Active Direct Box

A Professional Active Stereo DI for Clean and Warm Signal Reproduction
The Telefunken TDA-2 is a dual-channel active direct box designed for connecting guitars, keyboards, basses, and other instruments with 1/4" outputs to XLR inputs. Built with discrete Class-A FET circuitry and a UK-made OEP/Carnhill transformer, this DI box delivers pristine signal quality with high headroom and natural warmth. Whether used in a live setting or studio environment, the TDA-2 ensures superior sound with minimal distortion and optimal clarity.

Premium Class-A FET Circuitry for Transparent Tone
At the core of the TDA-2 is its discrete Class-A FET circuit, designed to maintain signal integrity while providing a smooth, musical character. This high-quality circuit enhances harmonic richness, making it an excellent choice for both clean and overdriven instrument signals. The addition of a custom-wound OEP/Carnhill transformer further refines the tone, adding warmth and depth without sacrificing detail.

Dual-Channel Design for Maximum Flexibility
Equipped with two independent channels, the TDA-2 allows users to connect and process multiple instruments simultaneously. Each channel features a dedicated -15 dB pad switch, ensuring compatibility with high-output sources, while individual ground lift switches eliminate unwanted hum and interference. This versatility makes the TDA-2 a valuable tool for both stage and studio applications.

48V Phantom Power with LED Indicator for Reliable Operation
The TDA-2 is powered by 48V phantom power supplied from a console or recording interface. This eliminates the need for external power supplies or batteries, simplifying setup while ensuring consistent performance. A built-in LED indicator confirms when phantom power is active, preventing signal loss and ensuring uninterrupted operation.

Durable and Road-Ready Construction
Designed for reliability, the TDA-2 is housed in a rugged extruded aluminum enclosure built to withstand the demands of professional use. Recessed switches and connectors offer added protection, minimizing the risk of accidental adjustments or damage. Whether used in a studio rack or on the road, this DI box is built to last, providing years of dependable performance.

Pass-Through Outputs for Flexible Signal Routing
Each channel of the TDA-2 features a 1/4" pass-through output, allowing musicians to send their signal to an amplifier while simultaneously sending a clean DI signal to a mixer or recording interface. This feature is particularly useful for recording engineers capturing both direct and amplified signals for greater mix flexibility.

Hand-Assembled for Precision and Quality
Every TDA-2 is hand-assembled using high-quality components, including Amphenol connectors, WIMA, Nichicon, and Panasonic capacitors, and 1% 1/4W metal film resistors. Gold-plated circuit traces ensure optimal conductivity, while 100% through-hole components provide superior reliability. This attention to detail ensures the highest level of performance and durability for professional audio applications.

A Must-Have DI Box for Musicians and Engineers
With its active circuit, premium transformer, and roadworthy build, the Telefunken TDA-2 is an essential tool for any musician or audio engineer. Whether used for recording, live sound reinforcement, or reamping, this DI box provides clean, warm, and professional-grade signal quality with every use.