Telefunken TDP-2 – Stereo Passive DI Box with Custom-Wound Transformers
The Telefunken TDP-2 is a high-quality stereo passive DI (Direct Injection) box designed for professional studio and live sound applications. Perfect for keyboards, synths, drum machines, acoustic-electric instruments, and playback rigs, the TDP-2 offers pristine signal conversion with warmth, clarity, and reliability—hallmarks of the Telefunken name.
Each channel of the TDP-2 features its own custom-wound Telefunken transformer, providing rich, musical tone and transformer isolation to eliminate ground loops and unwanted noise. Its passive circuitry requires no power, making it a plug-and-play solution for any audio environment.
Built into a rugged aluminum enclosure, the TDP-2 is road-ready and tour-tested, offering exceptional build quality and reliability. With XLR outputs and 1/4″ thru connections on both channels, it seamlessly integrates with modern live setups and studio workflows alike.
Key Features:
- High-performance stereo passive DI box
- Dual-channel design – ideal for stereo instruments
- Custom-wound Telefunken transformers for rich tone
- Transformer-isolated outputs eliminate hum and ground loops
- Parallel 1/4″ thru outputs for amp or monitoring feeds
- Passive design – no batteries or phantom power required
- Rugged aluminum housing – built for stage and studio
- Made in the USA with premium components
Technical Specifications:
- Type: Stereo Passive DI Box
- Inputs: 2 x 1/4″ TS instrument (L/R)
- Thru: 2 x 1/4″ TS (L/R, parallel)
- Outputs: 2 x balanced XLR (transformer-isolated)
- Frequency Response: 20 Hz – 20 kHz ±1 dB
- Input Impedance: 140kΩ
- Output Impedance: 150Ω
- Power: Passive – requires no external power
Why Choose the Telefunken TDP-2?
The TDP-2 combines Telefunken’s legacy of premium analog engineering with the practicality required in modern performance and studio environments. Whether you’re connecting stereo keyboards, playback systems, or dual-output guitars, the TDP-2 provides natural tone, low noise, and rock-solid durability.
For stereo sources that deserve the best—choose the Telefunken TDP-2.