{"product_id":"four-valve-limted-55-edition-rotary-mixer","title":"four.valve Limited 55 Edition rotary mixer","description":"\u003ch5 class=\"MsoNormal\" style=\"color: rgb(255, 255, 255); background-color: #0a0a0a;\"\u003eOverview\u003c\/h5\u003e\n\u003cp style=\"color: rgb(255, 255, 255); font-family: 'Segoe UI', 'Segoe UI Web (West European)', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', sans-serif; font-size: 15px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: #0a0a0a; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; text-align: left;\"\u003e\u003cspan data-olk-copy-source=\"MessageBody\" style=\"border: 0px; font: inherit; margin: 0px; padding: 0px; vertical-align: baseline; color: rgb(255, 255, 255);\"\u003eTo mark 55 years of the Technics SL-1200, Union Audio has created the \u003cb\u003efour.valve Limited 55 Edition\u003c\/b\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"color: rgb(255, 255, 255); font-family: 'Segoe UI', 'Segoe UI Web (West European)', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', sans-serif; font-size: 15px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: #0a0a0a; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; text-align: left;\"\u003e\u003cspan style=\"border: 0px; font: inherit; margin: 0px; padding: 0px; vertical-align: baseline; color: rgb(255, 255, 255);\"\u003eBased on the four.valve, the Limited 55 combines its valve-based analogue architecture with selected design elements from the elara range, including the aluminium front panel and knurled control knobs.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"color: rgb(255, 255, 255); font-family: 'Segoe UI', 'Segoe UI Web (West European)', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', sans-serif; font-size: 15px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: #0a0a0a; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; text-align: left;\"\u003e\u003cspan style=\"border: 0px; font: inherit; margin: 0px; padding: 0px; vertical-align: baseline; color: rgb(255, 255, 255);\"\u003eThe mixer also features weighted fader knobs and wooden side trims from the Signature Series, with gold anodised bezels and artwork designed to complement the Limited Edition SL-1210 MK7.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"color: rgb(255, 255, 255); font-family: 'Segoe UI', 'Segoe UI Web (West European)', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', sans-serif; font-size: 15px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: #0a0a0a; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; text-align: left;\"\u003e\u003cspan style=\"border: 0px; font: inherit; margin: 0px; padding: 0px; vertical-align: baseline; color: rgb(255, 255, 255);\"\u003eOnly \u003cb\u003e550 individually numbered units\u003c\/b\u003e will be produced.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\" style=\"color: rgb(255, 255, 255); background-color: #0a0a0a;\"\u003eProduct Description\u003c\/h3\u003e\n\u003cp style=\"color: rgb(255, 255, 255); font-family: 'Segoe UI', 'Segoe UI Web (West European)', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', sans-serif; font-size: 15px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: #0a0a0a; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; text-align: left;\"\u003e\u003cspan data-olk-copy-source=\"MessageBody\" style=\"border: 0px; font: inherit; margin: 0px; padding: 0px; vertical-align: baseline; color: rgb(255, 255, 255) !important;\"\u003eThe Limited 55 retains the four.valve's valve circuitry and fully analogue signal path, delivering the harmonic character and natural compression that define the four.valve design.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"color: rgb(255, 255, 255); font-family: 'Segoe UI', 'Segoe UI Web (West European)', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', sans-serif; font-size: 15px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: #0a0a0a; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; text-align: left;\"\u003e\u003cspan style=\"border: 0px; font: inherit; margin: 0px; padding: 0px; vertical-align: baseline; color: rgb(255, 255, 255) !important;\"\u003eA \u003cb\u003ecustom discrete op-amp designed by Union Audio founder Andy Rigby-Jones\u003c\/b\u003e has been developed specifically for this edition, forming part of the analogue signal path.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"color: rgb(255, 255, 255); font-family: 'Segoe UI', 'Segoe UI Web (West European)', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', sans-serif; font-size: 15px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: #0a0a0a; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; text-align: left;\"\u003e\u003cspan style=\"border: 0px; font: inherit; margin: 0px; padding: 0px; vertical-align: baseline; color: rgb(255, 255, 255) !important;\"\u003eThe physical design combines elements from across the Union Audio range. The aluminium front panel and knurled controls are taken from the elara family, while weighted fader knobs and wooden side trims come from the Signature Series.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"color: rgb(255, 255, 255); font-family: 'Segoe UI', 'Segoe UI Web (West European)', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', sans-serif; font-size: 15px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: #0a0a0a; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; text-align: left;\"\u003e\u003cspan style=\"border: 0px; font: inherit; margin: 0px; padding: 0px; vertical-align: baseline; color: rgb(255, 255, 255) !important;\"\u003eGold anodised bezels and artwork complete the finish, while the VU meters feature a phosphorescent treatment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"color: rgb(255, 255, 255); font-family: 'Segoe UI', 'Segoe UI Web (West European)', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', sans-serif; font-size: 15px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: #0a0a0a; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; text-align: left;\"\u003e\u003cspan style=\"border: 0px; font: inherit; margin: 0px; padding: 0px; vertical-align: baseline; color: rgb(255, 255, 255) !important;\"\u003eThe result is a four.valve with a distinctive new finish and a combination of design details not found on any other Union Audio mixer.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 class=\"MsoNormal\"\u003eTech Specs\u003c\/h5\u003e\n\u003ch3 class=\"spec-title\"\u003eDistortion plus Noise (THD+N) un-weighted\u003c\/h3\u003e\n\u003ctable class=\"spec-table\" style=\"border: 1px solid white; border-collapse: collapse; width: 100%; max-width: 600px; margin: 20px 0; background-color: #1a1a1a; color: white;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"border: 1px solid white;\"\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px; font-size: 14px;\"\u003e0dBu, 20Hz to 20kHz, Line In to Mix Out +4dBu\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px; font-size: 14px;\"\u003e0.1% Typically\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 class=\"spec-title\"\u003eFrequency Response\u003c\/h3\u003e\n\u003ctable class=\"spec-table\" style=\"border: 1px solid white; border-collapse: collapse; width: 100%; max-width: 600px; margin: 20px 0; background-color: #1a1a1a; color: white;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"border: 1px solid white;\"\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px; font-size: 14px;\"\u003eLine in to Mix Out\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px; font-size: 14px;\"\u003e+\/-1dB 20Hz - 50kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border: 1px solid white;\"\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px; font-size: 14px;\"\u003eRIAA Accuracy\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px; font-size: 14px;\"\u003e+\/-1dB 20Hz to 20kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 class=\"spec-title\"\u003eShutoff and Crosstalk\u003c\/h3\u003e\n\u003ctable class=\"spec-table\" style=\"border: 1px solid white; border-collapse: collapse; width: 100%; max-width: 600px; margin: 20px 0; background-color: #1a1a1a; color: white;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"border: 1px solid white;\"\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px; font-size: 14px;\"\u003eFader Shutoff\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px; font-size: 14px;\"\u003e\u0026gt; -80dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border: 1px solid white;\"\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px; font-size: 14px;\"\u003eL\/R Crosstalk Line in to Mix Out 1kHz\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px; font-size: 14px;\"\u003e\u0026lt;-75dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 class=\"spec-title\"\u003eNoise 22Hz to 22kHz Un-Weighted\u003c\/h3\u003e\n\u003ctable class=\"spec-table\" style=\"border: 1px solid white; border-collapse: collapse; width: 100%; max-width: 600px; margin: 20px 0; background-color: #1a1a1a; color: white;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"border: 1px solid white;\"\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px; font-size: 14px;\"\u003eResidual Output noise\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px; font-size: 14px;\"\u003e\u0026lt;-92dBu\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border: 1px solid white;\"\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px; font-size: 14px;\"\u003eLine In to Mix Out Unity\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px; font-size: 14px;\"\u003e\u0026lt;-85dBu\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 class=\"spec-title\"\u003eMaximum Output Level Mix Out\u003c\/h3\u003e\n\u003ctable class=\"spec-table\" style=\"border: 1px solid white; border-collapse: collapse; width: 100%; max-width: 600px; margin: 20px 0; background-color: #1a1a1a; color: white;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"border: 1px solid white;\"\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px; font-size: 14px;\"\u003e0.5% THD\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px; font-size: 14px;\"\u003e+27dBu\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 class=\"spec-title\"\u003eDynamic Range\u003c\/h3\u003e\n\u003ctable class=\"spec-table\" style=\"border: 1px solid white; border-collapse: collapse; width: 100%; max-width: 600px; margin: 20px 0; background-color: #1a1a1a; color: white;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"border: 1px solid white;\"\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px; font-size: 14px;\"\u003eDynamic Range\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px; font-size: 14px;\"\u003e116dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 class=\"spec-title\"\u003eEQ and Filter Frequency\u003c\/h3\u003e\n\u003ctable class=\"spec-table\" style=\"border: 1px solid white; border-collapse: collapse; width: 100%; max-width: 600px; margin: 20px 0; background-color: #1a1a1a; color: white;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"border: 1px solid white;\"\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px; font-size: 14px;\"\u003eChannel High-Pass Filter Fully Clockwise\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px; font-size: 14px;\"\u003e-3dB\/1500Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border: 1px solid white;\"\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px; font-size: 14px;\"\u003eMaster 3 Band Isolator\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px; font-size: 14px;\"\u003e200Hz, 800Hz, 2000Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 class=\"spec-title\"\u003eHeadphone Amplifier\u003c\/h3\u003e\n\u003ctable class=\"spec-table\" style=\"border: 1px solid white; border-collapse: collapse; width: 100%; max-width: 600px; margin: 20px 0; background-color: #1a1a1a; color: white;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"border: 1px solid white;\"\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px; font-size: 14px;\"\u003eMaximum output level\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px; font-size: 14px;\"\u003e750mW RMS - 33 ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 class=\"spec-title\"\u003ePower Supply\u003c\/h3\u003e\n\u003ctable class=\"spec-table\" style=\"border: 1px solid white; border-collapse: collapse; width: 99.915%; max-width: 600px; margin: 20px 0px; background-color: rgb(26, 26, 26); color: white;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"border: 1px solid white;\"\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px; font-size: 14px; width: 55.481%;\"\u003eType\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px; font-size: 14px; width: 44.9217%;\"\u003eExternal SMPSU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border: 1px solid white;\"\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px; font-size: 14px; width: 55.481%;\"\u003eMains Voltage range\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px; font-size: 14px; width: 44.9217%;\"\u003e90-260VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border: 1px solid white;\"\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px; font-size: 14px; width: 55.481%;\"\u003eOutput\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px; font-size: 14px; width: 44.9217%;\"\u003e18V DC 30-40W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border: 1px solid white;\"\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px; font-size: 14px; width: 55.481%;\"\u003eEfficiency\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px; font-size: 14px; width: 44.9217%;\"\u003eLEVEL VI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5 style=\"color: white; font-size: 12px; max-width: 600px;\"\u003eDimensions\u003c\/h5\u003e\n\u003ch3 class=\"spec-title\"\u003eDimensions - four.valve\u003c\/h3\u003e\n\u003ctable class=\"spec-table\" style=\"border: 1px solid white; border-collapse: collapse; width: 100%; max-width: 600px; margin: 20px 0; background-color: #1a1a1a; color: white;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px;\"\u003eMixer Height\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px;\"\u003e100mm (inc. knobs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px;\"\u003eMixer Width\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px;\"\u003e365mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px;\"\u003eMixer Depth\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px;\"\u003e283mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px;\"\u003e4.75kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 class=\"spec-title\"\u003ePacked Dimensions - Four.valve\u003c\/h3\u003e\n\u003ctable class=\"spec-table\" style=\"border: 1px solid white; border-collapse: collapse; width: 100%; max-width: 600px; margin: 20px 0; background-color: #1a1a1a; color: white;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px;\"\u003e\u003cspan style=\"color: #1f2124;\"\u003eSize L x W x H\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px;\"\u003e\u003cspan style=\"color: #1f2124;\"\u003e48cm x 38cm x 20cm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px;\"\u003e\u003cspan style=\"color: #1f2124;\"\u003eWeight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid white; padding: 10px;\"\u003e\u003cspan style=\"color: #1f2124;\"\u003e7kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Union Audio Limited","offers":[{"title":"Default Title","offer_id":57517526417783,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/0657\/4730\/files\/four.valve55top.png?v=1791374025","url":"https:\/\/www.unionaudio.co.uk\/products\/four-valve-limted-55-edition-rotary-mixer","provider":"Union Audio Limited","version":"1.0","type":"link"}