Telefunken TDA-2 – Stereo Active DI Box with Custom-Wound Transformers
The Telefunken TDA-2 is a professional-grade stereo active DI (Direct Injection) box, designed for uncompromising performance in studio, broadcast, and live sound applications. Perfect for keyboards, stereo instruments, drum machines, and playback rigs, the TDA-2 delivers exceptional signal clarity, low noise, and musical warmth—hallmarks of the Telefunken brand.
Each channel of the TDA-2 features a high-headroom active circuit and a custom-wound Telefunken transformer, ensuring full-range, phase-accurate sound with transformer-isolated outputs. The active design is optimized for passive sources, offering pristine impedance matching and excellent transient response. Ground loop elimination and ultra-low distortion make it an ideal choice for demanding stereo signal paths.
Built into a rugged, road-ready enclosure with premium components and gold-contact connectors, the TDA-2 is engineered for years of dependable use in any professional audio setting.
Key Features:
- Stereo active DI box for keyboards, synths, and stereo instruments
- Custom-wound Telefunken transformers on both channels
- Transformer-isolated outputs eliminate ground loop hum and noise
- High-headroom active design for maximum signal fidelity
- Parallel thru outputs for routing to amps or monitoring systems
- Requires 48V phantom power – no batteries needed
- Hand-built in the USA with rugged aluminum housing
Technical Specifications:
- Type: Stereo Active DI Box
- Inputs: 2 x 1/4″ TS instrument (Left & Right)
- Thru: 2 x 1/4″ TS (parallel)
- Outputs: 2 x balanced XLR (transformer-isolated)
- Power: 48V phantom power required
- Frequency Response: 20 Hz – 20 kHz ±1 dB
- Input Impedance: 1MΩ
- Output Impedance: 150Ω
Why Choose the Telefunken TDA-2?
When you need top-tier stereo signal integrity and tonal richness, the TDA-2 stands out with its combination of active electronics and custom transformers. Whether you’re capturing the full range of a keyboard performance or routing stereo backing tracks to front of house, the TDA-2 delivers with Telefunken’s legendary build and sonic quality.
Take control of your stereo sources with precision and warmth—choose the Telefunken TDA-2 Stereo Active DI Box.