{"id":7579,"date":"2017-11-21T16:07:41","date_gmt":"2017-11-21T16:07:41","guid":{"rendered":"https:\/\/masteringmansion.com\/pro-audio2\/categorias\/sin%20categorizar\/vhd-pre-module\/"},"modified":"2026-06-26T12:27:18","modified_gmt":"2026-06-26T12:27:18","slug":"vhd-pre-module","status":"publish","type":"product","link":"https:\/\/masteringmansion.com\/pro-audio\/categorias\/serie-500\/vhd-pre-module\/","title":{"rendered":"VHD+ Variable Harmonic Drive (VHD) Mic Preamplifier"},"content":{"rendered":"<div class=\"full-width medium-padding\">\n<div class=\"container\">\n<div class=\"row\">\n<div class=\"col-sm-8 col-sm-offset-2 col-xs-12\">\n<div class=\"cb-heading\">\n<h2 class=\"h3 color-alpha text-center\">Ultra-clean to heavy distortion\u2026You decide<\/h2>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"full-width large-padding color-white lazy-image bg-cover\" data-bg=\"url('\/assets\/components\/phpthumbof\/cache\/VHD_pre_content_banner_image.6a3117f8b42ce194d89932cdbb6f8d27.png')\" data-was-processed=\"true\">\n<div class=\"container\">\n<div class=\"row\">\n<div class=\"col-sm-10 col-sm-offset-1 col-xs-12\">\n<div class=\"cb-richtext\">\n<p>The VHD+ Pre Module for the popular 500 format modular rack platform makes the uniquely versatile VHD based preamp technology from Duality, SSL\u2019s industry leading large format studio console, available for studios of all sizes. The VHD+ Pre module is an immensely versatile recording and processing device. It can deliver ultra clean SSL SuperAnalogue<sup>TM<\/sup>\u00a0grade recordings but also features a switchable VHD mode. SSL\u2019s patented Variable Harmonic Drive (VHD) system uses a 100% analogue signal path to generate rich harmonic distortion.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"full-width medium-padding bg-theta\">\n<div class=\"container\">\n<div class=\"row\">\n<div class=\"col-sm-12 col-sm-offset-0 col-xs-12\">\n<div class=\"row\">\n<div class=\"col-sm-7 col-xs-12\">\n<div class=\"cb-richtext\">\n<p>Increase VHD input gain and the Variable Harmonic Drive process introduces either 2nd or 3rd harmonic distortion or a blend of the two to your source material. At lower gain settings it adds gentle valve-style warmth or a touch of transistor edge. As the gain is increased the more extreme the distortion becomes, until at high gain settings it delivers fierce trashy transistoresque grunge.<\/p>\n<p>The VHD+ Pre module gives the user ultimate versatility from a studio grade preamp. Whether it\u2019s ultra-clean traditional SSL, subtle warming or totally trashy transistor distortion, VHD will change your expectations of what a preamplifier should deliver.<\/p>\n<\/div>\n<div class=\"cb-richtext\">\n<p><strong>Key features<\/strong><\/p>\n<ul>\n<li>SSL SuperAnalogue<sup>TM<\/sup>\u00a0grade preamp<\/li>\n<li>2nd order harmonics (valve warmth to extreme distortion)<\/li>\n<li>3rd order harmonics (transistor edge to totally trashed)<\/li>\n<li>Absolute control via 2nd and 3rd order harmonic blend<\/li>\n<li>Variable Harmonic Drive (VHD) in\/out switch<\/li>\n<li>Switch-able LF Filter<\/li>\n<li>+48V phantom power<\/li>\n<li>Phase invert switch<\/li>\n<li>PAD switch<\/li>\n<li>Hi-Z switch<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Uniquely versatile mic pre and processor delivers everything from ultra-clean to slightly wa &#8230;<\/p>\n","protected":false},"featured_media":11704,"template":"","meta":[],"pwb-brand":[203],"product_brand":[],"product_cat":[1032],"product_tag":[460],"class_list":["post-7579","product","type-product","status-publish","has-post-thumbnail","pwb-brand-solid-state-logic","product_cat-serie-500","product_tag-solid-state-logic","first","onbackorder","sale","taxable","shipping-taxable","purchasable","product-type-simple"],"brands":[{"id":203,"name":"SOLID STATE LOGIC","slug":"solid-state-logic"}],"_links":{"self":[{"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/product\/7579","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/media\/11704"}],"wp:attachment":[{"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/media?parent=7579"}],"wp:term":[{"taxonomy":"pwb-brand","embeddable":true,"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/pwb-brand?post=7579"},{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/product_brand?post=7579"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/product_cat?post=7579"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/product_tag?post=7579"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}