Item #: TEL SYTM084 LIST

Telefunken TDA-1 Mono Active Direct Box

Order your Telefunken TDA-1 Mono Active Direct Box from AMS and enjoy 0% Interest Payment Plans, Free Shipping, Free Extended Warranty & 45 Day Money Back Guarantee.
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Product Description

The Telefunken TDA-1 is a mono active DI that utilizes top quality components in a modern take on classic circuitry to give you a full, rich character that both complements and retains the natural tone and feel of your instrument. The TDA circuit employs 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 with vibe.

Telefunken TDA-1 Mono Active Direct Box 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
  • 3 year warranty
The heart of the design is a custom-wound output transformer by OEP/Carnhill, made in the UK. The circuit board features gold plated traces and is entirely hand-assembled with through-hole components, providing more secure and reliable connections than typical surface mount circuitry. The frequency response of the circuit is ± 2dB from 20 Hz to 70 kHz, with extremely low distortion and self-noise. Each individual unit is manually tuned by hand for the lowest distortion figure possible. High input impedance prevents the loading down of passive pickups. This careful attention to detail and high quality component choices results in a direct box with a harmonically rich low end and a detailed, open high-end clarity.

The circuit is housed in an extremely durable extruded aluminum enclosure with recessed switches and connectors. This rugged construction is virtually indestructible, able to easily withstand the wear and tear of gigging. Each channel features two heavy duty metal toggle switches to engage a -15 dB pad and ground lift. The circuit is powered from standard +48V phantom power with an LED indicating when it is powered.

While some direct boxes focus on providing sterile, ultra-clean gain, they often leave the instrument devoid of any soul or character. Conversely, some DI’s artificially hype too much low-end and overemphasize harmonic distortion, resulting in a tubby and undefined output. The Telefunken active DI avoids these common design pitfalls and delivers a new standard in reliability and performance for direct boxes.
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Helpful Info about the Manufacturer
Phone:  860.882.5919 Warranty:  Diamond Series and R-F-T microphones: 90 day warranty for the capsule and tube and one year parts and labor for the amplifier, cable and power supply. Extended to 1 Year and 4 Years respectively once you register.

Product Specifications

Telefunken TDA-1 Mono Active Direct Box Specifications
  • Type: Active Direct Box
  • Frequency Range: 20 Hz - 50 kHz, ±1 dB
  • Power Source: +48V Phantom Power
  • Transformer: Custom-Wound OEP/Carnhill
  • Input Impedance: > 30 k
  • Output Impedance: < 250 
  • Maximum SPL (for 1% THD): +3.5 dBV (no pad); +18 dBV (with pad)
  • Input Connections: 1/4" Jack
  • Output Connections: XLR Output, 1/4" Thru
  • Dimensions (LxWxH): 100 x 100 x 50mm
  • Weight: 465 g
  • Included Accessories: Cloth Drawstring Bag

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