{"product_id":"ca-fairchild-model-670-31b4d8daa3","title":"Model 670","description":"\u003cp\u003eThe Fairchild Model 670 is a two-channel vacuum-tube variable-mu compressor\/limiter that can operate in dual mono or stereo, with six selectable time constants plus threshold, compression, and makeup gain controls. The current unit sold by Studio Economik is described as a faithful and meticulous recreation of the original Fairchild 670, built with hand-wired point-to-point construction, custom-wound transformers, and the original 20-tube complement (8x 6386, 2x 12AX7, 4x 6973, 2x 12BH7, 1x E80F\/EF806, 1x 5651, 1x EL34, 1x GZ34). Compression ratio varies with the amount of limiting from 1:2 up to 1:30, with attack times of 0.2-0.4 ms and release times from 0.2 s to 25 s including program-dependent automatic-release positions. It presents 600-ohm balanced input and output impedances, a 40 Hz to 15 kHz (+\/-1 dB) frequency response, and runs on 120 or 240 V, 60 Hz AC at 3 A. The original design also allowed independent control of vertical and lateral amplitudes for stereo disk mastering.\u003c\/p\u003e","brand":"FAIRCHILD","offers":[{"title":"Default Title","offer_id":51241824059638,"sku":null,"price":48500.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/2882\/7894\/files\/21007_full.jpg?v=1783727268","url":"https:\/\/envoy-music.myshopify.com\/products\/ca-fairchild-model-670-31b4d8daa3","provider":"Envoy Music","version":"1.0","type":"link"}