Fredenstein F609 – 500 Series Tube Microphone Preamp

The Fredenstein F609 is a professional-grade tube microphone preamplifier designed for the 500 Series format. It utilizes two double-triodes—an ECC802S (12AU7) and an ECC803S (12AX7)—to deliver a smooth, warm sound with a well-defined low end. The preamp features high-quality American-made input and output transformers, ensuring optimal signal integrity. Its design includes both input and output gain controls, allowing for precise gain staging and tonal variation. Additional features include a 20 dB pad, polarity control, phantom power, a two-stage low-cut filter, and a standby mode to preserve the tubes when not in use. The traditional VU meter provides real-time level monitoring. The F609 requires a 500 Series rack capable of supplying 250 mA of current. 

Key Features:

• Dual Double-Triode Design: Utilizes ECC802S (12AU7) and ECC803S (12AX7) tubes for authentic tube warmth.
• High-Quality Transformers: Features premium American-made input and output transformers for superior signal integrity.
• Gain Controls: Offers both input and output gain controls for flexible gain staging and tonal shaping.
• Additional Controls: Includes a 20 dB pad, polarity control, phantom power, a two-stage low-cut filter, and a standby mode.
• VU Meter: Equipped with a traditional VU meter for accurate level monitoring.
• Compatibility: Designed for use in a 500 Series rack with a minimum of 250 mA current supply.

Specifications:

The Fredenstein F609 is an essential tool for audio professionals seeking authentic tube warmth and flexibility within the 500 Series ecosystem. Its combination of high-quality components and versatile features make it a valuable asset in any recording setup.