TDA-2 Dual Active Direct Box

The dual-channel active TDA-2 phantom powered direct boxes utilize top quality components in a modern take on classic circuitry to deliver a full, rich sound that both complements and retains the natural tone and character of the instrument. By pairing discrete Class-A FET circuitry with a high quality, European-made transformer and a rugged metal enclosure, the TDA DI’s provide exemplary sound quality and reliable performance. The circuit boasts a frequency response of ± 2dB from 20 Hz to 70 kHz with extremely low distortion and self-noise, and each individual unit is manually tuned for the lowest possible distortion figure in TELEFUNKEN’s US facility. This careful attention to detail and high-quality component choices result in a harmonically rich low end and a detailed, open high-end. On the TDA-2, each channel features its own independent -15dB pad, ground lift, and +48V phantom power LED indicator. Every TDA unit is assembled, tuned and tested in Connecticut, USA.

Features

• Custom-wound OEP/Carnhill transformer, made in the UK
• Rugged aluminum construction
• Class-A discrete FET circuitry
• Recessed switches and connectors for protection
• +48V phantom powered with LED indicator
• -15 dB pad switch
• Ground lift switch
• 100% through-hole components
• Amphenol connectors
• WIMA, Nichicon, and Panasonic capacitors
• 1% 1/4W metal film resistors

For audio professionals and studio engineers seeking uncompromising sound clarity and precision, the Telefunken TDA-2 Dual Active Direct Box is an essential tool that elevates your audio signal integrity. Whether you are recording live instruments, routing signals in a complex studio setup, or performing on stage, this direct box ensures that your audio signal is delivered cleanly and accurately, free from noise and signal degradation. The TDA-2 is designed to preserve the natural tone of your instruments while providing versatile connectivity, making it an indispensable component in any professional audio environment.

One of the standout features of the TDA-2 is its custom-wound OEP/Carnhill transformer. Unlike generic transformers, this custom design offers superior isolation and a balanced, warm tone that enhances the musicality of your instruments rather than coloring them negatively. This means your recordings and live sound retain their original character with exceptional clarity. The transformer also contributes to the unit’s ability to handle high signal levels without distortion, ensuring your audio remains pristine even at +3.5 dBV without the pad engaged and up to +18 dBV when the pad is activated.

The active circuitry of the TDA-2 provides a high input impedance greater than 30 kΩ, which is critical for maintaining the integrity of passive instrument pickups and preventing tone loss. This feature means that your guitar, bass, or keyboard signals are accurately captured with full frequency response from 20 Hz to 50 kHz with a tolerance of only ±1 dB. Such a wide frequency range ensures that even the subtlest nuances of your performance are preserved, giving you a more detailed and dynamic sound.

Connectivity options on the TDA-2 are thoughtfully designed for professional use. It features a 1/4″ jack input for easy connection to your instrument or audio source, along with an XLR output to feed your mixing console or audio interface with a balanced signal that minimizes interference. Additionally, a 1/4″ thru output allows you to route the original signal elsewhere, facilitating flexible signal chains without compromising audio quality. With an output impedance of less than 250 ohms, the TDA-2 reliably drives long cable runs and complex setups without signal loss.

The compact dimensions of 100 mm by 100 mm by 50 mm, coupled with a lightweight build of just 540 grams, mean that the TDA-2 is both portable and unobtrusive. It fits comfortably on pedalboards, in rack cases, or in studio racks without taking up excessive space. Powered by standard +48 V phantom power, it integrates seamlessly with most professional audio equipment, eliminating the need for batteries and reducing maintenance concerns.

In practical terms, the Telefunken TDA-2 excels in a variety of applications—from tracking direct guitar or bass signals in the studio, to providing clean, noise-free feeds for live sound reinforcement. Its robust build and high-quality components ensure durability and consistent performance, even in demanding environments. By preserving your instrument’s authentic sound and offering professional-grade signal management, this direct box helps you achieve superior audio results whether you’re recording, mixing, or performing live.

Confidently invest in the Telefunken TDA-2 Dual Active Direct Box and experience the difference that professional-grade audio equipment can make. With its precision engineering, exceptional sound fidelity, and versatile connectivity, the TDA-2 is built to meet the rigorous demands of studio professionals and live performers alike. Elevate your sound with a direct box that combines heritage craftsmanship and modern technology to deliver unmatched audio quality, reliability, and performance.