SKU: 74899971430

Telefunken TDA-2 Dual-Channel Active Direct Box

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Description

Telefunken TDA-2 Dual-Channel Active Direct BoxUseful in connecting a guitar, keyboard, bassor indeed, any other instrument with a 1 4" outputto an XLR input, the Telefunken TDA 2 is a dual channel DI box. The unit utilizes active, discrete class A FET circuitry which, when coupled with components such as an OEP Carnhill transformer, helps you to achieve a tone with clean, high headroom and a warm, saturated timbre. The TD 2 sports other constructive features which recommend it heartily; for

Useful in connecting a guitar, keyboard, bass—or indeed, any other instrument with a 1/4" output—to an XLR input, the Telefunken TDA-2 is a dual-channel DI box. The unit utilizes active, discrete class-A FET circuitry which, when coupled with components such as an OEP/Carnhill transformer, helps you to achieve a tone with clean, high headroom and a warm, saturated timbre. The TD-2 sports other constructive features which recommend it heartily; for instance, its printed circuit boards are assembled by hand with through-hole components; this ensures both security and reliability in its connection points. Additionally, all circuit traces have been gold-plated to bolster conductivity, while the circuit itself has been encased in an extruded aluminum enclosure. As such, you'll find it more than suitable for the wear and tear of gigging.

The DI box provides a frequency range of 20 Hz to 70 kHz, while both its channels give you a -15 dB pad and a ground lift, should you encounter noise issues. Since each channel has its own, separate controls, you can run two instruments at the same time through the TD-2, thus keeping the footprint down on stage or in the studio. 1/4" pass-through outputs are also provided on each channel, making this unit very handy in the studio; for instance, you could take a DI off an electric guitar and use the 1/4" pass-through to plug into an amplifier. In this manner, you can record both the sound of an amped guitar and a clean, dry guitar, giving yourself options in the mix. This is but one of the many uses you may find for this feature.

The circuit runs off of 48 VDC phantom power supplied from a console or recording interface, and an LED indicates when phantom power has been instantiated. Please note that if phantom power isn't running, you'll only get a substantially lower, weaker signal out of your instrument.

Key Features at a Glance

  • 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
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SKU: 74899971430

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LynneC
Carnegie, US
★★★★★ 4
Good Book, not Parshall though
Format: Kindle
The author uses more Japanese terms than any similar book that I've read but uses western naming conventions for Japanese people. I don't quite know what to think. Good diagrams.
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Reviewed in the United States on December 12, 2025
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Robert K. B
Port Orchard, US
★★★★★ 5
Japanese mindset Coral Sea
Format: Kindle
This book gave me fresh insights to the Battle of the Coral Sea. I feel like I have an idea as to what was going through the Japanese minds. Well written. He make it easy to follow each step of the battle.
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Reviewed in the United States on April 19, 2026
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Christine
Grantham, US
★★★★★ 5
A Less Than Famous Battle
Format: Hardcover
Very thorough on a battle that was not as decisive as Midway.
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Reviewed in the United States on May 1, 2026
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john c
Bozeman, US
★★★★★ 5
Interesting front to back
Format: Hardcover
Really good book. A lot from the Japanese perspective. Plenty of facts but not so much as to be boring. Amazing how much was hit or miss back then. Or just plain luck.
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Reviewed in the United States on March 30, 2026
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Kuba Zywko
West Palm Beach, US
★★★★★ 5
An important book
Format: Kindle
A very good treatment of the subject matter, especially valuable as it mines the Japanese sources, which have largely been ignored by the Western historians. The narrative is clear and easy to follow & background detail gives important context into the psychological aspects of the events. Definitely recommended!
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Reviewed in the United States on December 14, 2025

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