{"id":1130,"date":"2024-04-05T13:55:13","date_gmt":"2024-04-05T11:55:13","guid":{"rendered":"https:\/\/www.reeltoreel.nl\/blog\/?p=1130"},"modified":"2024-04-05T13:55:16","modified_gmt":"2024-04-05T11:55:16","slug":"calibrating-a-studer-b67-for-a-mastering-studio","status":"publish","type":"post","link":"https:\/\/www.reeltoreel.nl\/blog\/?p=1130","title":{"rendered":"Calibrating a Studer B67 for a Mastering Studio"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Recently I got in contact with the owner of a Mastering Studio. He owns a Studer B67 and had a problem with it regarding calibration levels. He wants to use the B67 as a &#8216;bounce to tape&#8217; device to get the tape compression-effect. And there was also the problem of randomly dropping levels when calibrating. <\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"808\" height=\"1024\" src=\"https:\/\/www.reeltoreel.nl\/blog\/wp-content\/uploads\/2024\/04\/PXL_20240103_185416772-scaled-e1712316453974-808x1024.jpg\" alt=\"\" class=\"wp-image-1131\" srcset=\"https:\/\/www.reeltoreel.nl\/blog\/wp-content\/uploads\/2024\/04\/PXL_20240103_185416772-scaled-e1712316453974-808x1024.jpg 808w, https:\/\/www.reeltoreel.nl\/blog\/wp-content\/uploads\/2024\/04\/PXL_20240103_185416772-scaled-e1712316453974-237x300.jpg 237w, https:\/\/www.reeltoreel.nl\/blog\/wp-content\/uploads\/2024\/04\/PXL_20240103_185416772-scaled-e1712316453974-118x150.jpg 118w, https:\/\/www.reeltoreel.nl\/blog\/wp-content\/uploads\/2024\/04\/PXL_20240103_185416772-scaled-e1712316453974-1212x1536.jpg 1212w, https:\/\/www.reeltoreel.nl\/blog\/wp-content\/uploads\/2024\/04\/PXL_20240103_185416772-scaled-e1712316453974-624x791.jpg 624w, https:\/\/www.reeltoreel.nl\/blog\/wp-content\/uploads\/2024\/04\/PXL_20240103_185416772-scaled-e1712316453974.jpg 1437w\" sizes=\"auto, (max-width: 808px) 100vw, 808px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">When I got the deck I could replicate the problem with the levels. I It seemed weird to me, but I suspected that the REC AMP cards, or maybe the Power Supply was faulty. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The deck had been fully recapped and serviced before. And I can say that the person who did that did an outstanding job! No complaints whatsoever.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">I spend a lot of time diagnosing the problem, measuring every aspect of the deck, checking pots, solder joints, etc. etc. whatever I could think of.<br \/>I found one shorted tantalum cap in one of the REC AMP cards, but I wasn&#8217;t sure if that was causing the problem. The card was functioning normally. I replaced the tantalums for quality elec. caps.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">After a lot of testing, the problem seemed to have gone away, as I could not replicate it anymore. It could very well be that the initial tape used to test the deck with, was not performing as it should. Anyway I tested the deck with my own BASF 911 tape and I found no problem anymore.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">So I continued with the second item on the list: recording the middle speed of 19 cm\/s with such a high fluxivity that tape compression could be achieved easily without over-driving the input chain too much.<br \/>At the end I put the slow speed ~@320nWb\/m, the middle speed ~@510 nWb\/m, and the fast speed also at ~@320nWb\/m, as per the customer&#8217;s wishes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">These are the frequency sweeps: 9,5 cm\/s<\/p>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6a0f594e3d3c8&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6a0f594e3d3c8\" class=\"wp-block-image size-large is-style-default wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/www.reeltoreel.nl\/blog\/wp-content\/uploads\/2024\/04\/sweep-95-1024x576.png\" alt=\"9,5 cm\/s\" class=\"wp-image-1134\" srcset=\"https:\/\/www.reeltoreel.nl\/blog\/wp-content\/uploads\/2024\/04\/sweep-95-1024x576.png 1024w, https:\/\/www.reeltoreel.nl\/blog\/wp-content\/uploads\/2024\/04\/sweep-95-300x169.png 300w, https:\/\/www.reeltoreel.nl\/blog\/wp-content\/uploads\/2024\/04\/sweep-95-150x84.png 150w, https:\/\/www.reeltoreel.nl\/blog\/wp-content\/uploads\/2024\/04\/sweep-95-1536x864.png 1536w, https:\/\/www.reeltoreel.nl\/blog\/wp-content\/uploads\/2024\/04\/sweep-95-624x351.png 624w, https:\/\/www.reeltoreel.nl\/blog\/wp-content\/uploads\/2024\/04\/sweep-95.png 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">19 cm\/s:<\/p>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6a0f594e3e238&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6a0f594e3e238\" class=\"wp-block-image size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/www.reeltoreel.nl\/blog\/wp-content\/uploads\/2024\/04\/sweep-19-1024x576.png\" alt=\"\" class=\"wp-image-1135\" srcset=\"https:\/\/www.reeltoreel.nl\/blog\/wp-content\/uploads\/2024\/04\/sweep-19-1024x576.png 1024w, https:\/\/www.reeltoreel.nl\/blog\/wp-content\/uploads\/2024\/04\/sweep-19-300x169.png 300w, https:\/\/www.reeltoreel.nl\/blog\/wp-content\/uploads\/2024\/04\/sweep-19-150x84.png 150w, https:\/\/www.reeltoreel.nl\/blog\/wp-content\/uploads\/2024\/04\/sweep-19-1536x864.png 1536w, https:\/\/www.reeltoreel.nl\/blog\/wp-content\/uploads\/2024\/04\/sweep-19-624x351.png 624w, https:\/\/www.reeltoreel.nl\/blog\/wp-content\/uploads\/2024\/04\/sweep-19.png 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">38 cm\/s:<\/p>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6a0f594e3eff8&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6a0f594e3eff8\" class=\"wp-block-image size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/www.reeltoreel.nl\/blog\/wp-content\/uploads\/2024\/04\/sweep-38-1024x576.png\" alt=\"\" class=\"wp-image-1136\" srcset=\"https:\/\/www.reeltoreel.nl\/blog\/wp-content\/uploads\/2024\/04\/sweep-38-1024x576.png 1024w, https:\/\/www.reeltoreel.nl\/blog\/wp-content\/uploads\/2024\/04\/sweep-38-300x169.png 300w, https:\/\/www.reeltoreel.nl\/blog\/wp-content\/uploads\/2024\/04\/sweep-38-150x84.png 150w, https:\/\/www.reeltoreel.nl\/blog\/wp-content\/uploads\/2024\/04\/sweep-38-1536x864.png 1536w, https:\/\/www.reeltoreel.nl\/blog\/wp-content\/uploads\/2024\/04\/sweep-38-624x351.png 624w, https:\/\/www.reeltoreel.nl\/blog\/wp-content\/uploads\/2024\/04\/sweep-38.png 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Recently I got in contact with the owner of a Mastering Studio. He owns a Studer B67 and had a problem with it regarding calibration levels. He wants to use the B67 as a &#8216;bounce to tape&#8217; device to get the tape compression-effect. And there was also the problem of randomly dropping levels when calibrating. [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_crdt_document":"","advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[5],"tags":[],"class_list":["post-1130","post","type-post","status-publish","format-standard","hentry","category-audio"],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.reeltoreel.nl\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1130","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.reeltoreel.nl\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.reeltoreel.nl\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.reeltoreel.nl\/blog\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.reeltoreel.nl\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1130"}],"version-history":[{"count":4,"href":"https:\/\/www.reeltoreel.nl\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1130\/revisions"}],"predecessor-version":[{"id":1140,"href":"https:\/\/www.reeltoreel.nl\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1130\/revisions\/1140"}],"wp:attachment":[{"href":"https:\/\/www.reeltoreel.nl\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1130"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.reeltoreel.nl\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1130"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.reeltoreel.nl\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1130"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}