{"product_id":"mercury-mercury-66-iv","title":"Mercury Mercury 66 - IV","description":"\u003cdiv lang=\"en\"\u003e\n\u003cp\u003e\u003cstrong\u003eMercury 66-IV\u003c\/strong\u003e is a single-channel all-tube limiter built on the variable-bias circuit known from the Fairchild 660 — a compressor that remains the reference point in its class. Inputs and outputs are transformer-balanced.\u003c\/p\u003e\n\u003ch3\u003eCompression you do not hear as compression\u003c\/h3\u003e\n\u003cp\u003eA variable-mu circuit changes tube gain through the bias voltage rather than through a separate control element in the audio path. The time constant moves with the signal, so reduction has no rigid threshold and leaves none of the characteristic pumping. On vocals and on a bus you can even out several decibels of dynamics and hear the result rather than the device working.\u003c\/p\u003e\n\u003ch3\u003eEvery stage tube, with no shortcuts\u003c\/h3\u003e\n\u003cp\u003eThis is a fully tube design, not a hybrid — including the control and output stages. In practice that means more colour than mixed topologies and different behaviour when driven hard, where the path starts to thicken rather than harden.\u003c\/p\u003e\n\u003ch3\u003eKEY FEATURES\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSingle-channel all-tube limiter\u003c\/li\u003e\n\u003cli\u003eVariable-bias circuit in Fairchild 660 topology\u003c\/li\u003e\n\u003cli\u003eTransformer-balanced input and output\u003c\/li\u003e\n\u003cli\u003eProgram-dependent time constants\u003c\/li\u003e\n\u003cli\u003eWorks on individual tracks and on the bus\u003c\/li\u003e\n\u003cli\u003eDesigned and built by Mercury Recording Equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTECHNICAL SPECIFICATIONS\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eType: tube limiter, variable-bias circuit\u003c\/li\u003e\n\u003cli\u003eChannels: 1\u003c\/li\u003e\n\u003cli\u003eReference circuit: Fairchild 660\u003c\/li\u003e\n\u003cli\u003eInputs and outputs: balanced, transformer-coupled\u003c\/li\u003e\n\u003cli\u003eConstruction: all-tube\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Mercury Recording Equipment","offers":[{"title":"Default Title","offer_id":54828328943953,"sku":"60897","price":13599.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8741\/0769\/files\/eu-mercury-mercury-66-iv-1.jpg?v=1788991612","url":"https:\/\/wrdtunes.com\/products\/mercury-mercury-66-iv","provider":"Wired Tunes","version":"1.0","type":"link"}