{"product_id":"purple-audio-mc77-compressor-limiter-920-used","title":"Purple Audio MC77 Compressor \/ Limiter #920 (Used)","description":"The \u003cb\u003ePurple Audio MC77\u003c\/b\u003e supercedes the MC76 re-engineered 1176 type  FET Limiter. The MC77 recreates the audio circuitry of the revision E  1176, using modern components matched to the original. \u003cbr\u003e\u003cbr\u003eOne  significant component is the input attenuator. The input attenuator that  was custom made for the original revisions A-F 1176 and for the Purple  MC76 by Clarostat was discontinued in 2002. It was a J series T-pad  attenuator with two 600Ω \"build out\" resistors to keep a constant 600Ω  load on the source and primary of the input transformer. Clarostat  changed carbon manufacturers and the new carbon manufacturer was  unwilling or unable to make the part. Purple temporarily stopped making  the MC76 to find a solution. We tried several three-deck Clarostat 70  series pots in different configurations to achieve the same loading and  to match the taper. We found a solution that matched the original; both  the originals and replacement parts are drawn in the schematic that you  can download below. At the same time, we looked at feedback gathered  from the hundreds of satisfied MC76 users. Based on that feedback, we  incorporated useful new features into the revised unit, which was  designated the MC77. \u003cbr\u003e\u003cbr\u003e\u003cb\u003eNEW features in the MC77:\u003c\/b\u003e\u003cul\u003e\u003cli\u003e\u003c\/ul\u003e","brand":"Purple Audio","offers":[{"title":"Default Title","offer_id":44449549025383,"sku":"30905","price":1495.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8848\/5479\/files\/used_purple_audio_mc77_compressor-limiter__920_front_6d763d16-1a8b-4c1c-b1a6-27539a12dc32.jpg?v=1787089412","url":"https:\/\/vintageking.mom\/products\/purple-audio-mc77-compressor-limiter-920-used","provider":"Vintage King","version":"1.0","type":"link"}