{"product_id":"heritage-audio-symph-eq-stereo-shelving-equalizer","title":"Heritage Audio Symph EQ Stereo Asymptotic Shelving Equalizer with M-S Processing","description":"\u003ch2\u003e\u003cbr\u003e\u003c\/h2\u003e\n\u003c!-- Video Section --\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv style=\"margin: 20px auto 10px auto; text-align: center; max-width: 800px;\"\u003e\n\u003ch2 style=\"font-size: 20px; margin-bottom: 12px;\"\u003eHeritage Audio Symph EQ Overview\u003c\/h2\u003e\n\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/kA3x058WQaE?si=LTQyZa--PTjkimxx\" style=\"width: 100%; max-width: 800px; height: 450px; display: block; margin: 0 auto; border-radius: 8px;\"\u003e\n  \u003c\/iframe\u003e\n\u003c\/div\u003e\n\u003cp\u003e{% endif %}\u003c\/p\u003e\n\u003c!-- Section 1 --\u003e\n\u003cdiv class=\"par-section\"\u003e\n\u003cdiv class=\"par-image\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0646\/4031\/9643\/files\/Heritage_Audio_Symph_EQ_side_view_1.png?v=1771996665\" alt=\"Heritage Audio Symph EQ stereo shelving equalizer front panel\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"par-text\"\u003e\n\u003ch2\u003eYour Master Bus Has Been Waiting for This\u003c\/h2\u003e\n\u003cp\u003eDrop the Symph EQ across your master bus and you'll immediately understand what mastering engineers mean when they talk about \"air\" and \"weight.\" This isn't heavy-handed EQ — it's surgical tonal shaping that opens up your highs and tightens your lows without leaving a fingerprint on your mix.\u003c\/p\u003e\n\u003cp\u003eAsymptotic shelf curves keep ultra-highs and sub-lows naturally controlled as boost and cut values climb, delivering a sound that's tight, sweet, and remarkably phase-coherent. Carnhill input and output transformers and a 73-type Class A output stage ensure every signal that passes through leaves richer than it arrived.\u003c\/p\u003e\n\u003cp\u003eAs an authorized dealer, Pro Audio Reserve ensures your Symph EQ is a genuine Heritage Audio product backed by full manufacturer warranty and support.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Section 2 --\u003e\n\u003cdiv class=\"par-section reverse\"\u003e\n\u003cdiv class=\"par-image\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0646\/4031\/9643\/files\/Heritage_Audio_Symph_EQ_rear_view_1.png?v=1771996665\" alt=\"Heritage Audio Symph EQ rackmount mastering equalizer\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"par-text\"\u003e\n\u003ch2\u003eM-S Processing That Changes How You Mix\u003c\/h2\u003e\n\u003cp\u003eHere's where the Symph EQ separates itself from every other shelving EQ on the market. Switch into M-S mode and you can brighten hard-panned elements without touching your vocals, or tighten up stereo bass content without making your kick or bass guitar feel thin. Processing the center and sides independently isn't just a feature — it's a completely different way of working.\u003c\/p\u003e\n\u003cp\u003eIn M-S mode, the side high-pass filter takes on an elliptical response modeled after the filters used in vintage disk cutting lathes — precise, musical, and exactly what your sides need to sit right in the mix. This is mastering-grade control in a 1U box.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Section 3 --\u003e\n\u003cdiv class=\"par-section\"\u003e\n\u003cdiv class=\"par-image\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0646\/4031\/9643\/files\/Heritage_Audio_Symph_EQ_front_view_1.png?v=1771996665\" alt=\"Heritage Audio Symph EQ rear panel XLR I\/O connections\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"par-text\"\u003e\n\u003ch2\u003e0.5dB Precision — Because Every Half Decibel Matters\u003c\/h2\u003e\n\u003cp\u003eAt the mastering stage, the difference between a good decision and a great one is often less than a decibel. That's why every control on the Symph EQ uses high-quality rotary switches with 0.5dB resolution — six high-shelf frequencies from 8kHz to 24kHz, six low-shelf frequencies from 20Hz to 470Hz, and up to ±10.5dB of boost or cut with total repeatability.\u003c\/p\u003e\n\u003cp\u003eBalanced, ground-free I\/O on gold-plated XLR connectors, hard bypass per channel, and stereo or M-S operation selectable on the fly. Everything you need, nothing you don't.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eHighlights\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eStereo asymptotic shelving EQ with near-zero phase deviation — optimized for mastering\u003c\/li\u003e\n\u003cli\u003eBuilt-in M-S processing for independent center and side channel equalization\u003c\/li\u003e\n\u003cli\u003eElliptical side high-pass filter in M-S mode, modeled after vintage disk cutting lathes\u003c\/li\u003e\n\u003cli\u003e0.5dB precision rotary switches with ±10.5dB boost\/cut range across six selectable frequencies per band\u003c\/li\u003e\n\u003cli\u003eCarnhill input and output transformers with 73-type Class A output stage\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #ccc;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f2f2f2;\"\u003e\n\u003cth style=\"text-align: left; padding: 10px; border: 1px solid #ccc; width: 35%;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"text-align: left; padding: 10px; border: 1px solid #ccc;\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eSolid State Stereo Shelving EQ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #fafafa;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e\u003cstrong\u003eChannels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e2 (Stereo \/ M-S)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e\u003cstrong\u003eBands\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e2 (High Shelf, Low Shelf)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #fafafa;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e\u003cstrong\u003eBoost\/Cut Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e±10.5dB in 0.5dB steps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e\u003cstrong\u003eHigh Shelf Frequencies\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e8, 10, 12, 15, 20, 24 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #fafafa;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e\u003cstrong\u003eLow Shelf Frequencies\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e20, 60, 110, 220, 360, 470 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e\u003cstrong\u003eHigh Pass Filter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eYes (elliptical in M-S mode)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #fafafa;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e\u003cstrong\u003eFrequency Response\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e15Hz – 30kHz (±0.5dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e\u003cstrong\u003eInputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e2 x XLR (L\/R), balanced, ground-free\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #fafafa;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e\u003cstrong\u003eOutputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e2 x XLR (L\/R), gold-plated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e\u003cstrong\u003eBypass\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eHard bypass per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #fafafa;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e\u003cstrong\u003eRack Spaces\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e1U\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e\u003cstrong\u003ePower Source\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eExternal power supply (included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #fafafa;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e1.75\" H x 19\" W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eSYMPH EQ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #ccc;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f2f2f2;\"\u003e\n\u003cth style=\"text-align: left; padding: 10px; border: 1px solid #ccc;\"\u003eIncluded Items\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eHeritage Audio Symph EQ Stereo Shelving Equalizer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #fafafa;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eExternal Power Supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eUser Documentation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Heritage Audio","offers":[{"title":"Default Title","offer_id":48051750174875,"sku":null,"price":1799.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0646\/4031\/9643\/files\/Heritage_Audio_Symph_EQ_front_view_1.png?v=1772323597","url":"https:\/\/proaudioreserve.com\/products\/heritage-audio-symph-eq-stereo-shelving-equalizer","provider":"Pro Audio Reserve","version":"1.0","type":"link"}