Ultra-Rare Vintage Portable Mixer – Siemens/Auso ELA 62-02 (Italtel, Italy) – Broadcast-Grade Preamp Quality

Offered here is an exceptionally rare piece of European broadcast engineering: the ELA 62-02 portable mixer, designed by Siemens Auso and distributed by Italtel S.p.A. in Italy. Much like the renowned WSW (Austria) and Siemens Sitral (Germany) series, the Auso units were built to uncompromising broadcast standards—yet remained largely unknown outside of Italy. This mixer is entirely discrete, built with silicon transistors and fiberglass PCBs, employing gold-plated connectors throughout. It was originally developed for outside broadcasting—such as live sportscasts or mobile recording—and includes internal and external 12V DC battery options as well as 220V mains power operation. Modular High-End Architecture – Six Fully Isolated Mic Preamps What sets this unit apart: Six independent microphone input channels (M1–M6), each equipped with: A dedicated input transformer A stepped gain selector Full discrete transistor signal path Inputs M1–M4 feature XLR-type connectors for low-level signals; inputs M5 and M6 are accessed via jack or Tuchel. Thanks to its modular structure and transformer-balanced design, the ELA 62-02 offers a rare opportunity: → With minor modification, it can be converted into a world-class 6-channel microphone preamp, providing the same sonic quality and dynamic behavior as known from WSW or Siemens Sitral V276 preamps. Perfect for studio integration. Technical Summary: Gain range: Stepped adjustment +52 dB Output level: Up to +24 dB with 600 Ω load Frequency response: 40 Hz to 15 kHz (±1 dB) Noise floor: –15 dB referenced to input Distortion: < 0.5 % at nominal output Power options: 220V AC / 12V DC / internal rechargeable battery Dimensions: 48 × 36 × 22 cm – Weight: ~20 kg Condition & Use The unit is in excellent vintage condition, unmodified, and fully intact. We repaired all the faults we found and changed some capacitors. The rest is in original condition. As-is, it serves as a collector’s piece, a reference for vintage broadcast engineering, or a restoration base. With professional adaptation, it becomes a high-end multi-channel mic preamp suitable for demanding studio environments. A second, identical unit may be available on request (not included in this listing). Serious inquiries welcome. This is a professional device from the golden era of European broadcast manufacturing—a rare gem for collectors, engineers, and vintage audio enthusiasts alike.