{"product_id":"fredenstein-f609-preamplificatore-microfonico-valvolare","title":"FREDENSTEIN F609 Tube Microphone Preamp","description":"\u003ch2\u003eTube Microphone Preamp\u003c\/h2\u003e\n\u003cp\u003eThe FREDENSTEIN F609 is a tube microphone preamp, utilizing two dual triodes, an ECC802S (12AU7) and an ECC803S (12AX7), in a single 500 series rack module. It provides a +160V power supply to prevent starving the tubes. The FREDENSTEIN F609 uses high-quality input and output transformers manufactured in America.\u003cbr\u003eThe main feature of the FREDENSTEIN F609 is the combination of the Input Gain knob (from 0 to +70 dB) plus the Output Gain, along with the signal path of the tube circuit. The output level control allows you to change the amplifier characteristics until you achieve true old-school tube distortion. The sound is very smooth with a wide and well-defined low end.\u003cbr\u003eThe FREDENSTEIN F609 is particularly interesting in combination with the FREDENSTEIN F602 tube compressor, if you like high-end vintage tones and the character of original tubes. It pairs excellently with the Artistic Compressor and the Artistic Leveller for a sound reminiscent of traditional 1970s tube microphone preamps in chain with FET or opto solid-state compressors. Some engineers keep all three together.\u003cbr\u003eOther features include: a 20dB 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 is standard.\u003cbr\u003eNot all racks can provide the 250 mA required by the F609, but any Bento series is suitable for this purpose.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\n\u003cli\u003eFrequency Response: 20 Hz - 20,000 Hz, +\/- 1 dB\u003c\/li\u003e\n\n\u003cli\u003eDistortion: \u0026lt;0.1%\u003c\/li\u003e\n\n\u003cli\u003eInput Noise: \u0026lt;-127 dB\u003c\/li\u003e\n\n\u003cli\u003eInput Impedance: \u0026gt;1200 Ohm\u003c\/li\u003e\n\n\u003cli\u003eMax. Input Level: +12 dBu\u003c\/li\u003e\n\n\u003cli\u003eOutput Impedance: 200 ohm\u003c\/li\u003e\n\n\u003cli\u003eMax. Output Level: +26 dBu\u003c\/li\u003e\n\n\u003cli\u003eClip Indicator: +24 dBu\u003c\/li\u003e\n\n\u003cli\u003eInput Attenuator PAD: -20 dB\u003c\/li\u003e\n\n\u003cli\u003eHigh Pass Filter: 50 Hz or 100 Hz (switchable)\u003c\/li\u003e\n\n\n\u003c\/ul\u003e","brand":"Fredenstein","offers":[{"title":"Default Title","offer_id":53993911058765,"sku":"FREDF609","price":585.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/0643\/6173\/files\/94884-large_default.jpg?v=1779947605","url":"https:\/\/musicdelivery.net\/en\/products\/fredenstein-f609-preamplificatore-microfonico-valvolare","provider":"Music Delivery","version":"1.0","type":"link"}