{"product_id":"topping-pre90-preamplifier-ext90-input-extender","title":"TOPPING PRE90 Preamplifier \u0026 EXT90 Input Extender","description":"\u003cp\u003eTopping introduces the Pre90 preamplifier and Ext90 input extender, complementing the A90\/D90 flagship audio chain.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePremium NFCA Amplification:\u003c\/strong\u003e Featuring the premium NFCA module, akin to the A90, the Pre90 delivers exceptional performance with Voltage Current Hybrid Feedback Architecture and Ultra-High Gain Feedback, ensuring distortion-free signal amplification.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUltra-Low Noise Floor: \u003c\/strong\u003eWith a chipset providing a noise floor below 0.3uVrms and a dynamic range of 145dB, the Pre90 ensures noise-free sound output, creating a rich, dark background for an immersive audio experience.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSafe Volume and Precise Control:\u003c\/strong\u003e The Pre90 features a safe volume option to prevent damage from sudden high volumes. The Volume Relay, comprising premium Japanese relay components, allows precise 0.5dB volume adjustment, making it ideal for HiFi speaker systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFully Balanced with +16dB Gain:\u003c\/strong\u003e The fully-balanced Pre90, using NFCA like the A90, achieves a dynamic range of 145dB with no audible noise. Its +16dB gain amplifies even weak signals to the receiving amplifier.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDual-Amp Configuration:\u003c\/strong\u003e Configurable to run to XLR only, RCA only, or XLR+RCA, the Pre90 allows seamless transitions between two amps without constant cable switching.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFunctional Remote Control:\u003c\/strong\u003e The Pre90 comes with a fully-functional remote for easy control, allowing adjustments from volume to gain and user settings, including saving specific volume configurations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExt90 Expands Input Options: \u003c\/strong\u003eThe Ext90 allows seamless connection of multiple sources. With one RCA and one XLR input, extend connectivity to two RCA and four XLR inputs. The active source is easily selected with the remote, and volume settings are remembered for different input\/output ports.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGrand Central Station of Audiophile Setups:\u003c\/strong\u003e Together, the Pre90 and Ext90 transform the 90 stack into a hub for audiophile setups, connecting additional sources, outputting to multiple amps, and enhancing versatility.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTHD+N: \u0026lt;0.00007% @1kHz A-wt\u003cbr\u003eTHD: \u0026lt;0.0003%@20-20kHz 90kBW\u003cbr\u003eSINAD: 124dB @1Khz A-wt\u003cbr\u003eSNR\u003cbr\u003e SE IN\/SE OUT: 141dB @1kHz A-wt\u003cbr\u003e BAL IN\/SE OUT: 137dB @1kHz A-wt\u003cbr\u003e SE IN\/BAL OUT: 145dB @1kHz A-wt\u003cbr\u003e BAL IN\/BAL OUT: 138dB @1kHz A-wt\u003cbr\u003eDynamic range\u003cbr\u003e SE IN\/SE OUT: 141dB @1kHz A-wt\u003cbr\u003e BAL IN\/SE OUT: 137dB @1kHz A-wt\u003cbr\u003e SE IN\/BAL OUT: 145dB @1kHz A-wt\u003cbr\u003e BAL IN\/BAL OUT: 138dB @1kHz A-wt\u003cbr\u003eFrequency response: 20 - 100,000Hz (+\/-0.1dB)\u003cbr\u003eOutput level\u003cbr\u003e SE IN\/SE OUT: 25Vpp\u003cbr\u003e BAL IN\/SE OUT: 25Vpp\u003cbr\u003e SE IN\/BAL OUT: 50Vpp\u003cbr\u003e BAL IN\/BAL OUT: 50Vpp\u003cbr\u003eAP measured noise level @A-wt\u003cbr\u003e SE IN\/SE OUT: \u0026lt;0.7uVrms\u003cbr\u003e BAL IN\/SE OUT: \u0026lt;0.7uVrms\u003cbr\u003e SE IN\/BAL OUT: \u0026lt;0.9uVrms\u003cbr\u003e BAL IN\/BAL OUT: \u0026lt;0.9uVrms\u003cbr\u003eActual noise level @A-wt\u003cbr\u003e SE IN\/SE OUT: \u0026lt;0.3uVrms\u003cbr\u003e BAL IN\/SE OUT: \u0026lt;0.3uVrms\u003cbr\u003e SE IN\/BAL OUT: \u0026lt;0.6uVrms\u003cbr\u003e BAL IN\/BAL OUT: \u0026lt;0.6uVrms\u003cbr\u003eChannel crosstalk @1kHz\u003cbr\u003e SE IN\/SE OUT: -130dB\u003cbr\u003e BAL IN\/SE OUT: -137dB\u003cbr\u003e SE IN\/BAL OUT: -140dB\u003cbr\u003e BAL IN\/BAL OUT: -140dB\u003cbr\u003eChannel balance\u003cbr\u003e SE IN\/SE OUT: +10db - -60dB +\/-0.5dB\u003cbr\u003e BAL IN\/SE OUT: +10db - -60dB +\/-0.5dB\u003cbr\u003e SE IN\/BAL OUT: +16db - -60dB +\/-0.5dB\u003cbr\u003e BAL IN\/BAL OUT: +16db - -60dB +\/-0.5dB\u003cbr\u003eIMD CCIF @(18kHz+19kHz): -115dB\u003cbr\u003eIMD SMPTE @(60Hz+7kHz): -115dB@SMPTE4: 1\u003cbr\u003eInput sensitivity\u003cbr\u003e SE IN\/SE OUT: 9.2Vrms@0dB\u003cbr\u003e BAL IN\/SE OUT: 9.3Vrms@0dB\u003cbr\u003e SE IN\/BAL OUT: 9.2Vrms @0dB\u003cbr\u003e BAL IN\/BAL OUT: 9.3Vrms@0dB\u003cbr\u003eVolume range\u003cbr\u003e SE IN\/SE OUT: +10db - -99dB\u003cbr\u003e BAL IN\/SE OUT: +10db - -99dB\u003cbr\u003e SE IN\/BAL OUT: +16db - -99dB\u003cbr\u003e BAL IN\/BAL OUT: +16db - -99dB\u003cbr\u003eOutput impedance\u003cbr\u003e SE IN\/SE OUT: 20Ω\u003cbr\u003e BAL IN\/SE OUT: 20Ω\u003cbr\u003e SE IN\/BAL OUT: 40Ω\u003cbr\u003e BAL IN\/BAL OUT: 40Ω\u003cbr\u003eOutput DC Configuration: \u0026lt;1mVrms\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePacking list:\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003ePre90 contents list\u003c\/strong\u003e\u003cbr\u003e1x Pre90 Preamplifier\u003cbr\u003e1x remote\u003cbr\u003e1x AC cable\u003cbr\u003e1x user manual\u003cbr\u003e1x warranty card\u003cbr\u003e\u003cstrong\u003eExt90 Contents list\u003c\/strong\u003e\u003cbr\u003e1x Ext90 input extender\u003cbr\u003e1x aviation connector cable\u003cbr\u003e1x user manual\u003cbr\u003e1x warranty card\u003c\/p\u003e\n\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-pre90-preamplifier-ext90-input-extender-hifichic-4.jpg\" alt=\"\" style=\"display:block;margin:20px auto;max-width:100%;width:100%;height:auto;\"\u003e\n\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-pre90-preamplifier-ext90-input-extender-hifichic-26.jpg\" alt=\"\" style=\"display:block;margin:20px auto;max-width:100%;width:100%;height:auto;\"\u003e\n\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-pre90-preamplifier-ext90-input-extender-hifichic-25.jpg\" alt=\"\" style=\"display:block;margin:20px auto;max-width:100%;width:100%;height:auto;\"\u003e\n\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-pre90-preamplifier-ext90-input-extender-hifichic-3.jpg\" alt=\"\" style=\"display:block;margin:20px auto;max-width:100%;width:100%;height:auto;\"\u003e\n\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-pre90-preamplifier-ext90-input-extender-hifichic-6.jpg\" alt=\"\" style=\"display:block;margin:20px auto;max-width:100%;width:100%;height:auto;\"\u003e\n\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-pre90-preamplifier-ext90-input-extender-hifichic-21.jpg\" alt=\"\" style=\"display:block;margin:20px auto;max-width:100%;width:100%;height:auto;\"\u003e\n\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-pre90-preamplifier-ext90-input-extender-hifichic-8.jpg\" alt=\"\" style=\"display:block;margin:20px auto;max-width:100%;width:100%;height:auto;\"\u003e\n\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-pre90-preamplifier-ext90-input-extender-hifichic-5.jpg\" alt=\"\" style=\"display:block;margin:20px auto;max-width:100%;width:100%;height:auto;\"\u003e\n\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-pre90-preamplifier-ext90-input-extender-hifichic-12.jpg\" alt=\"\" style=\"display:block;margin:20px auto;max-width:100%;width:100%;height:auto;\"\u003e\n\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-pre90-preamplifier-ext90-input-extender-hifichic-16.jpg\" alt=\"\" style=\"display:block;margin:20px auto;max-width:100%;width:100%;height:auto;\"\u003e\n\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-pre90-preamplifier-ext90-input-extender-hifichic-23.jpg\" alt=\"\" style=\"display:block;margin:20px auto;max-width:100%;width:100%;height:auto;\"\u003e\n\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-pre90-preamplifier-ext90-input-extender-hifichic-22.jpg\" alt=\"\" style=\"display:block;margin:20px auto;max-width:100%;width:100%;height:auto;\"\u003e\n\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-pre90-preamplifier-ext90-input-extender-hifichic-11.jpg\" alt=\"\" style=\"display:block;margin:20px auto;max-width:100%;width:100%;height:auto;\"\u003e\n\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-pre90-preamplifier-ext90-input-extender-hifichic-24.jpg\" alt=\"\" style=\"display:block;margin:20px auto;max-width:100%;width:100%;height:auto;\"\u003e\n\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-pre90-preamplifier-ext90-input-extender-hifichic-20.jpg\" alt=\"\" style=\"display:block;margin:20px auto;max-width:100%;width:100%;height:auto;\"\u003e\n\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-pre90-preamplifier-ext90-input-extender-hifichic-14.jpg\" alt=\"\" style=\"display:block;margin:20px auto;max-width:100%;width:100%;height:auto;\"\u003e\n\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-pre90-preamplifier-ext90-input-extender-hifichic-18.jpg\" alt=\"\" style=\"display:block;margin:20px auto;max-width:100%;width:100%;height:auto;\"\u003e\n\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-pre90-preamplifier-ext90-input-extender-hifichic-9.jpg\" alt=\"\" style=\"display:block;margin:20px auto;max-width:100%;width:100%;height:auto;\"\u003e\n\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-pre90-preamplifier-ext90-input-extender-hifichic-13_1.jpg\" alt=\"\" style=\"display:block;margin:20px auto;max-width:100%;width:100%;height:auto;\"\u003e\n\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-pre90-preamplifier-ext90-input-extender-hifichic-7_1.jpg\" alt=\"\" style=\"display:block;margin:20px auto;max-width:100%;width:100%;height:auto;\"\u003e\n\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-pre90-preamplifier-ext90-input-extender-hifichic-10.jpg\" alt=\"\" style=\"display:block;margin:20px auto;max-width:100%;width:100%;height:auto;\"\u003e\n\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-pre90-preamplifier-ext90-input-extender-hifichic-15.jpg\" alt=\"\" style=\"display:block;margin:20px auto;max-width:100%;width:100%;height:auto;\"\u003e\n\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-pre90-preamplifier-ext90-input-extender-hifichic-2.jpg\" alt=\"\" style=\"display:block;margin:20px auto;max-width:100%;width:100%;height:auto;\"\u003e\n\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-pre90-preamplifier-ext90-input-extender-hifichic-27.jpg\" alt=\"\" style=\"display:block;margin:20px auto;max-width:100%;width:100%;height:auto;\"\u003e\n\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-pre90-preamplifier-ext90-input-extender-hifichic-19.jpg\" alt=\"\" style=\"display:block;margin:20px auto;max-width:100%;width:100%;height:auto;\"\u003e\n\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-pre90-preamplifier-ext90-input-extender-hifichic-1.jpg\" alt=\"\" style=\"display:block;margin:20px auto;max-width:100%;width:100%;height:auto;\"\u003e\n\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-pre90-preamplifier-ext90-input-extender-hifichic-17.jpg\" alt=\"\" style=\"display:block;margin:20px auto;max-width:100%;width:100%;height:auto;\"\u003e\n\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/topping-pre90-preamplifier-ext90-input-extender-2.jpg?v=1785212038\" alt=\"\" style=\"display:block;margin:20px auto;max-width:100%;width:100%;height:auto;\"\u003e","brand":"TOPPING","offers":[{"title":"PRE90 Preamp \/ Black","offer_id":48702467342528,"sku":"10015435-PRE90 Preamp-Black","price":4790.44,"currency_code":"HKD","in_stock":true},{"title":"PRE90 Preamp \/ Silver","offer_id":48702467375296,"sku":"10015435-PRE90 Preamp-Silver","price":4790.44,"currency_code":"HKD","in_stock":true},{"title":"EXT90 Extender \/ Black","offer_id":48702467408064,"sku":"10015435-EXT90 Extender-Black","price":1991.35,"currency_code":"HKD","in_stock":true},{"title":"EXT90 Extender \/ Silver","offer_id":48702467440832,"sku":"10015435-EXT90 Extender-Silver","price":1991.35,"currency_code":"HKD","in_stock":true},{"title":"PRE90 Preamp + EXT90 Extender \/ Black","offer_id":48702467473600,"sku":"10015435-PRE90 Preamp + EXT90 Extender-Black","price":6781.79,"currency_code":"HKD","in_stock":true},{"title":"PRE90 Preamp + EXT90 Extender \/ Silver","offer_id":48702467506368,"sku":"10015435-PRE90 Preamp + EXT90 Extender-Silver","price":6781.79,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/01_topping-pre90-preamplifier-ext90-input-extender-7.jpg?v=1785680011","url":"https:\/\/hifichic.com\/products\/topping-pre90-preamplifier-ext90-input-extender","provider":"HIFICHIC","version":"1.0","type":"link"}