{"id":18300,"date":"2023-10-24T12:42:49","date_gmt":"2023-10-24T12:42:49","guid":{"rendered":"https:\/\/masteringmansion.com\/pro-audio\/?post_type=product&#038;p=18300"},"modified":"2026-06-12T17:32:57","modified_gmt":"2026-06-12T17:32:57","slug":"7603-xmod-microphone-preamp-eq","status":"publish","type":"product","link":"https:\/\/masteringmansion.com\/pro-audio\/categorias\/preamplificadores-y-canales\/7603-xmod-microphone-preamp-eq\/","title":{"rendered":"7603-XMOD MICROPHONE PREAMP &#038; EQ"},"content":{"rendered":"<div class=\"fe-block fe-block-b5222753bda77b15b381\">\n<div id=\"block-b5222753bda77b15b381\" class=\"sqs-block html-block sqs-block-html\" data-block-type=\"2\">\n<div class=\"sqs-block-content\">\n<div class=\"sqs-html-content\">\n<ul data-rte-list=\"default\">\n<li>\n<p class=\"preFade fadeIn\">Discrete EQ Op-amps<\/p>\n<\/li>\n<li>\n<p class=\"preFade fadeIn\">Carnhill Mic Input and Output Transformers<\/p>\n<\/li>\n<li>\n<p class=\"preFade fadeIn\">SMT Construction<\/p>\n<\/li>\n<li>\n<p class=\"preFade fadeIn\">Vetted Film Resistors<\/p>\n<\/li>\n<li>\n<p class=\"preFade fadeIn\">Custom Internal Power Supply<\/p>\n<\/li>\n<\/ul>\n<p class=\"preFade fadeIn\">The 7603 XMOD is identical in every way to Chameleon\u2019s flagship <a href=\"http:\/\/chameleonlabs.com\/products\/7603\">7603 pre-amplifier<\/a>, except for the use of Carnhill UK manufactured input and output transformers.<\/p>\n<div class=\"fe-block fe-block-d8ace6dd9c672dcc6322\">\n<div id=\"block-d8ace6dd9c672dcc6322\" class=\"sqs-block html-block sqs-block-html\" data-block-type=\"2\">\n<div class=\"sqs-block-content\">\n<div class=\"sqs-html-content\">\n<h2 class=\"preFade fadeIn\">7603 XMOD FEATURES<\/h2>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"fe-block fe-block-ba3f7b4a9765210e4930\">\n<div id=\"block-ba3f7b4a9765210e4930\" class=\"sqs-block horizontalrule-block sqs-block-horizontalrule\" data-block-type=\"47\">\n<div class=\"sqs-block-content\">\n<hr \/>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"fe-block fe-block-dfaecdd3fcb36380a26a\">\n<div id=\"block-dfaecdd3fcb36380a26a\" class=\"sqs-block html-block sqs-block-html\" data-block-type=\"2\">\n<div class=\"sqs-block-content\">\n<div class=\"sqs-html-content\">\n<ul data-rte-list=\"default\">\n<li>\n<p class=\"preFade fadeIn\">UK Carnhill Microphone and Line Input transformers and Carnhill UK output transformer, all with mu-metal housings<\/p>\n<\/li>\n<li>\n<p class=\"preFade fadeIn\">High resolution, low noise discrete audio circuitry<\/p>\n<\/li>\n<li>\n<p class=\"preFade fadeIn\">Hi-Z Direct Instrument Input (TRS)<\/p>\n<\/li>\n<li>\n<p class=\"preFade fadeIn\">Discrete Class A Electronic Topology<\/p>\n<\/li>\n<li>\n<p class=\"preFade fadeIn\">Three band, inductor based EQ<\/p>\n<\/li>\n<li>\n<p class=\"preFade fadeIn\">48V phantom power for mic input<\/p>\n<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"fe-block fe-block-a8aed6c8412f5f4fda64\">\n<div id=\"block-a8aed6c8412f5f4fda64\" class=\"sqs-block html-block sqs-block-html\" data-block-type=\"2\">\n<div class=\"sqs-block-content\">\n<div class=\"sqs-html-content\">\n<ul data-rte-list=\"default\">\n<li>\n<p class=\"preFade fadeIn\">Selectable 300\u03a9 or 1200\u03a9 Mic Input Impedance<\/p>\n<\/li>\n<li>\n<p class=\"preFade fadeIn\">Custom VU meter (input\/output) with calibrated ballistics<\/p>\n<\/li>\n<li>\n<p class=\"preFade fadeIn\">Relay based selection of Line \/ Mic &amp; DI Inputs<\/p>\n<\/li>\n<li>\n<p class=\"preFade fadeIn\">Overload input and output indicators<\/p>\n<\/li>\n<li>\n<p class=\"preFade fadeIn\">Reverse Phase Switch<\/p>\n<\/li>\n<li>\n<p class=\"preFade fadeIn\">Universal, on-board power supply<\/p>\n<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"fe-block fe-block-ec41e3b8bbaa4091f83b\">\n<div id=\"block-ec41e3b8bbaa4091f83b\" class=\"sqs-block html-block sqs-block-html\" data-block-type=\"2\">\n<div class=\"sqs-block-content\">\n<div class=\"sqs-html-content\">\n<h2 class=\"preFade fadeIn\">DESCRIPTION<\/h2>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"fe-block fe-block-8753bb847bb3968abd15\">\n<div id=\"block-8753bb847bb3968abd15\" class=\"sqs-block horizontalrule-block sqs-block-horizontalrule\" data-block-type=\"47\">\n<div class=\"sqs-block-content\">\n<hr \/>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"fe-block fe-block-44cc0693a3d0aac7e998\">\n<div id=\"block-44cc0693a3d0aac7e998\" class=\"sqs-block html-block sqs-block-html\" data-block-type=\"2\">\n<div class=\"sqs-block-content\">\n<div class=\"sqs-html-content\">\n<p class=\"preFade fadeIn\">As with the <a href=\"http:\/\/chameleonlabs.com\/products\/7603\">7603<\/a>, the fundamental design architecture of the 7603-XMod retraces the path of revered, classic pre-amps of the past as well as our popular <a href=\"http:\/\/chameleonlabs.com\/products\/7602-mkii\">7602<\/a>, however Chameleon has chosen to continue the tradition created by the 7602-XMod, allowing users to revel in the character and performance afforded by Carnhill&#8217;s legendary English components.<\/p>\n<p class=\"preFade fadeIn\">Displaying the same high dynamics and low distortion as the 7603, the 7603-XMod simply provides a different character to the sound of the pre-amplifier.<\/p>\n<p class=\"preFade fadeIn\">Once your audio exits the input transformer, our circuit boards are carefully crafted to ensure the highest possible signal integrity. As a starting point, we developed a new discrete audio input gain stage based on our vision for a solid topology that provides extremely low noise, high dynamics and extreme bandwidth. All of the 7603-XMod\u2019s operational amplifiers used throughout the device are based on this topology.<\/p>\n<p class=\"preFade fadeIn\">The 7603-XMod features EQ stages with four different available adjustments\u2014Variable High Pass, Low Frequency Shelving, Mid Frequency and High Frequency Shelving. Our engineers made a conscious decision to stay with the same, desirable, inductor-based topology that made our 7602 so popular, however we implemented our new discrete Op Amp to drive signal through a new set of custom Chameleon designed and manufactured inductors, providing the musicality we all love to use.<\/p>\n<p class=\"preFade fadeIn\">Its output stage is unique with respect to its design and performance. It can be described as a variable gain circuit that simultaneously adjusts both the input and output levels in order to generate a lower noise floor and extraordinary audio performance.<\/p>\n<p class=\"preFade fadeIn\">The 7603-XMod pre-amplifier provides a desirable set of user selectable functions designed to make the unit flexible and an integral part of the artistic process, incorporating a full portfolio of traditional features as well as some not commonly seen on other pre-amps.<\/p>\n<p class=\"preFade fadeIn\">Microphone input impedance can be selected between 300 and 1200 ohms, providing a method by which a microphone can be more ideally matched to the input stage and making it easier to get the best from lower output microphones such as ribbon-based designs.<\/p>\n<p class=\"preFade fadeIn\">We added a low impedance Direct Input on the front panel for plugging in instruments such as guitars that can be run through the line input stage, and added a precision VU meter with custom ballistics for visual monitoring of either the input or output levels.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"fe-block fe-block-b8b91d5c3fd46e882356\">\n<div id=\"block-b8b91d5c3fd46e882356\" class=\"sqs-block html-block sqs-block-html\" data-block-type=\"2\">\n<div class=\"sqs-block-content\">\n<div class=\"sqs-html-content\">\n<h2 class=\"preFade fadeIn\">SPECIFICATIONS<\/h2>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"fe-block fe-block-1d41dc3147d798f0dd22\">\n<div id=\"block-1d41dc3147d798f0dd22\" class=\"sqs-block horizontalrule-block sqs-block-horizontalrule\" data-block-type=\"47\">\n<div class=\"sqs-block-content\">\n<hr \/>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"fe-block fe-block-8e59846cedb93caf8bbe\">\n<div id=\"block-8e59846cedb93caf8bbe\" class=\"sqs-block html-block sqs-block-html\" data-block-type=\"2\">\n<div class=\"sqs-block-content\">\n<div class=\"sqs-html-content\">\n<h3 class=\"preFade fadeIn\"><strong>User Controlled Functions<\/strong><\/h3>\n<ul data-rte-list=\"default\">\n<li>\n<p class=\"preFade fadeIn\"><strong>On Switch:<\/strong><\/p>\n<p class=\"preFade fadeIn\">Turn Pre Amp On &#8211; VU Meter Light<\/p>\n<\/li>\n<li>\n<p class=\"preFade fadeIn\"><strong>300\u03a9 \/ 1200\u03a9 Switch:<\/strong><\/p>\n<p class=\"preFade fadeIn\">Switch between 300\u03a9 and 1200\u03a9 input impedance for the mic input<\/p>\n<\/li>\n<li>\n<p class=\"preFade fadeIn\"><strong>48V Power Supply Switch:<\/strong><\/p>\n<p class=\"preFade fadeIn\">On\/Off<\/p>\n<\/li>\n<li>\n<p class=\"preFade fadeIn\"><strong>DI Switch:<\/strong><\/p>\n<p class=\"preFade fadeIn\">Direct Input with 100K\u03a9 input sensitivity<\/p>\n<\/li>\n<li>\n<p class=\"preFade fadeIn\"><strong>EQ Switch:<\/strong><\/p>\n<p class=\"preFade fadeIn\">Engages audio high pass filter and equalization circuits<\/p>\n<\/li>\n<li>\n<p class=\"preFade fadeIn\"><strong>Polarity Switch:<\/strong><\/p>\n<p class=\"preFade fadeIn\">Reverses the polarity of the audio signal<\/p>\n<\/li>\n<li>\n<p class=\"preFade fadeIn\"><strong>Mic\/Line Sensitivity Switch:<\/strong><\/p>\n<p class=\"preFade fadeIn\">+20dB to +70dB of mic boost and -30dB to +20dB of line level adjustment.<\/p>\n<\/li>\n<li>\n<p class=\"preFade fadeIn\"><strong>High Pass Filter:<\/strong><\/p>\n<p class=\"preFade fadeIn\">Provides a 15dB\/octave high pass filter at 40Hz, 80Hz, 160Hz and 320Hz<\/p>\n<\/li>\n<li>\n<p class=\"preFade fadeIn\"><strong>Low Frequency Equalization:<\/strong><\/p>\n<p class=\"preFade fadeIn\">Provides +\/-15dB of Boost or Cut at 35Hz, 60Hz, 110Hz or 220Hz<\/p>\n<\/li>\n<li>\n<p class=\"preFade fadeIn\"><strong>Mid Frequency Equalization:<\/strong><\/p>\n<p class=\"preFade fadeIn\">Provides +\/-15dB of Boost or Cut at 360Hz, 700Hz, 1.6kHz, 3.2kHz, 4.8kHz or 7.2kHz<\/p>\n<\/li>\n<li>\n<p class=\"preFade fadeIn\"><strong>High Frequency Equalization:<\/strong><\/p>\n<p class=\"preFade fadeIn\">Provides +\/-15dB of Boost or Cut at 3.4kHz, 4.9kHz, 7kHz, 12kHz or 16kHz<\/p>\n<\/li>\n<\/ul>\n<h3 class=\"preFade fadeIn\"><strong>Inputs<\/strong><\/h3>\n<ul data-rte-list=\"default\">\n<li>\n<p class=\"preFade fadeIn\"><strong>Microphone (XLR):<\/strong><\/p>\n<p class=\"preFade fadeIn\">Transformer balanced input, RF isolated<\/p>\n<\/li>\n<li>\n<p class=\"preFade fadeIn\"><strong>Line (XLR):<\/strong><\/p>\n<p class=\"preFade fadeIn\">Transformer balanced input, RF isolated<\/p>\n<\/li>\n<li>\n<p class=\"preFade fadeIn\"><strong>Direct In (1\/4\u201d TRS):<\/strong><\/p>\n<p class=\"preFade fadeIn\">High impedance instrument input<\/p>\n<\/li>\n<\/ul>\n<h3 class=\"preFade fadeIn\"><strong>Input Impedance<\/strong><\/h3>\n<ul data-rte-list=\"default\">\n<li>\n<p class=\"preFade fadeIn\"><strong>Microphone:<\/strong><\/p>\n<p class=\"preFade fadeIn\">300\u03a9 or 1200\u03a9<\/p>\n<\/li>\n<li>\n<p class=\"preFade fadeIn\"><strong>Line:<\/strong><\/p>\n<p class=\"preFade fadeIn\">10k\u03a9 line bridging from 600\u03a9 or lower source impedance<\/p>\n<\/li>\n<li>\n<p class=\"preFade fadeIn\"><strong>Direct Input:<\/strong><\/p>\n<p class=\"preFade fadeIn\">100k\u03a9<\/p>\n<\/li>\n<\/ul>\n<h3 class=\"preFade fadeIn\"><strong>Sensitivity<\/strong><\/h3>\n<ul data-rte-list=\"default\">\n<li>\n<p class=\"preFade fadeIn\"><strong>Microphone:<\/strong><\/p>\n<p class=\"preFade fadeIn\">From -70dBm to -20dBm in 5 dB steps for 0dBm output<\/p>\n<\/li>\n<li>\n<p class=\"preFade fadeIn\"><strong>Line:<\/strong><\/p>\n<p class=\"preFade fadeIn\">From -30 dBm to +20 dBm in 5 dB steps for 0 dBm output<\/p>\n<\/li>\n<li>\n<p class=\"preFade fadeIn\"><strong>Noise Specification:<\/strong><\/p>\n<p class=\"preFade fadeIn\">Better than -125dBm EIN between -80 and -40 dBm referenced to 600\u03a9 input impedance, SNR 116dB at maximum output<\/p>\n<\/li>\n<li>\n<p class=\"preFade fadeIn\"><strong>Output Type:<\/strong><\/p>\n<p class=\"preFade fadeIn\">Transformer balanced and floating to drive 600 \u03a9 load<\/p>\n<\/li>\n<li>\n<p class=\"preFade fadeIn\"><strong>Maximum Output:<\/strong><\/p>\n<p class=\"preFade fadeIn\">+28dBu into 600\u03a9 load impedance<\/p>\n<\/li>\n<li>\n<p class=\"preFade fadeIn\"><strong>Frequency Response:<\/strong><\/p>\n<p class=\"preFade fadeIn\">10Hz &#8211; 20kHz -0.5dB 10Hz &#8211; 50kHz -1dB<\/p>\n<\/li>\n<\/ul>\n<h3 class=\"preFade fadeIn\"><strong>Indicators<\/strong><\/h3>\n<ul data-rte-list=\"default\">\n<li>\n<p class=\"preFade fadeIn\"><strong>VU Meter Light:<\/strong><\/p>\n<p class=\"preFade fadeIn\">Power ON<\/p>\n<\/li>\n<li>\n<p class=\"preFade fadeIn\"><strong>Red Input Gain:<\/strong><\/p>\n<p class=\"preFade fadeIn\">Input Overload<\/p>\n<\/li>\n<li>\n<p class=\"preFade fadeIn\"><strong>Red Output Gain:<\/strong><\/p>\n<p class=\"preFade fadeIn\">Output Overload<\/p>\n<\/li>\n<\/ul>\n<h3 class=\"preFade fadeIn\"><strong>Power Supply<\/strong><\/h3>\n<ul data-rte-list=\"default\">\n<li>\n<p class=\"preFade fadeIn\"><strong>100V &#8211; 240V (50\/60Hz):<\/strong><\/p>\n<p class=\"preFade fadeIn\">Switch mode power supply, fully shielded 3 amp peak output capability, quiescent consumption 0.5 Watts<\/p>\n<\/li>\n<\/ul>\n<h3 class=\"preFade fadeIn\"><strong>Mechanical<\/strong><\/h3>\n<ul data-rte-list=\"default\">\n<li>\n<p class=\"preFade fadeIn\">1RU Steel enclosure<br \/>\nAluminum front panel<br \/>\nLaser etched graphics<br \/>\nMilled aluminum knobs<\/p>\n<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Line \/ Mic \/ DI Pre-Amplifier with Carnhill Transformers<\/p>\n","protected":false},"featured_media":18301,"template":"","meta":[],"pwb-brand":[854],"product_brand":[],"product_cat":[1029],"product_tag":[855,857,856],"class_list":["post-18300","product","type-product","status-publish","has-post-thumbnail","pwb-brand-chameleon_labs","product_cat-preamplificadores-y-canales","product_tag-chamaleon-labs","product_tag-equalizer","product_tag-mic-preamp","first","onbackorder","sale","taxable","shipping-taxable","purchasable","product-type-simple"],"brands":[{"id":854,"name":"CHAMELEON LABS","slug":"chameleon_labs"}],"_links":{"self":[{"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/product\/18300","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\/18301"}],"wp:attachment":[{"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/media?parent=18300"}],"wp:term":[{"taxonomy":"pwb-brand","embeddable":true,"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/pwb-brand?post=18300"},{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/product_brand?post=18300"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/product_cat?post=18300"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/product_tag?post=18300"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}