{"product_id":"ibasso-amp14-amplifier-card","title":"iBasso AMP14 Amplifier Card","description":"\u003cp\u003eThe iBasso AMP14 is a plug-in amplifier card that brings the sound of a sixth-generation Korg Nutube to iBasso’s DX300 and DX320 players, with two Pentaconn 4.4mm balanced outputs: a headphone output at up to 5.2Vrms and a line output at 1.8Vrms. Each card is hand-tested and calibrated at the factory.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/ibasso-amp14-amplifier-card-photo-hero.jpg?v=1791363429\" alt=\"iBasso AMP14 Nutube 4.4mm balanced amp card\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eA sixth-generation Korg Nutube\u003c\/h3\u003e\n\u003cp\u003eMade by Korg and Noritake, the Nutube works exactly like a conventional triode vacuum tube, with the same rich overtones sought after in triodes, while using far less power and space. In the AMP14 it handles voltage amplification, for an engaging, unique tube sound with excellent linearity.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/ibasso-amp14-amplifier-card-photo-nutube.jpg?v=1791363435\" alt=\"The Korg Nutube in the iBasso AMP14\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eFully balanced 4.4mm outputs\u003c\/h3\u003e\n\u003cp\u003eAfter the Nutube 6P1 voltage amplifier, a JFET differential converter creates the L−, L+, R+ and R− signals. Two JRC volume chips form a four-channel, truly balanced volume control, and a four-channel balanced buffer drives the outputs. Pentaconn 4.4mm sockets give excellent sound quality and durability.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/ibasso-amp14-amplifier-card-photo-diagram.jpg?v=1791363440\" alt=\"iBasso AMP14 circuit block diagram\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/ibasso-amp14-amplifier-card-photo-outputs.jpg?v=1791363443\" alt=\"iBasso AMP14 balanced headphone and line outputs: 5.2Vrms and 1.8Vrms\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eCathode input\u003c\/h3\u003e\n\u003cp\u003eThe AMP14 feeds the signal to the Nutube’s cathode, whose impedance is lower than the grid’s, reducing interference from outside sources for an excellent noise floor, low Wi-Fi interference when streaming, and well-controlled tube microphonics.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/ibasso-amp14-amplifier-card-photo-cathode.jpg?v=1791363450\" alt=\"Cathode input on the iBasso AMP14\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eClean power from the player\u003c\/h3\u003e\n\u003cp\u003eThe amp section of the DX300 and DX320 has its own battery, ideal for a card with strict power requirements. Two Linear Technology DC-DC chips provide four supplies: 3.6V for the cathode through a low-noise LDO, 14V for the Nutube’s anode, and +8V and −8V for a 16V swing for the op-amps.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/ibasso-amp14-amplifier-card-photo-battery.jpg?v=1791363455\" alt=\"Dedicated battery and DC-DC supplies for the iBasso AMP14\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eAdvanced circuit design\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eA Toshiba 2SK209 field-effect transistor, inherited from the AMP9, buffers the Nutube’s output.\u003c\/li\u003e\n\u003cli\u003eSignal ground and shield ground are separated to prevent noise interference.\u003c\/li\u003e\n\u003cli\u003eCarefully set negative feedback reduces distortion and extends the bandwidth.\u003c\/li\u003e\n\u003cli\u003eA dedicated JRC ultra-low-noise volume control lowers the noise floor at low volume and in quiet passages.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/ibasso-amp14-amplifier-card-photo-circuit.jpg?v=1791363460\" alt=\"Advanced circuit design of the iBasso AMP14\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eHand matched\u003c\/h3\u003e\n\u003cp\u003eEvery AMP14 is tested and matched on an Audio Precision analyser, with three multi-turn potentiometers on the board calibrated by hand for the Nutube’s best performance, for a clean, extended treble and a sweet, engaging sound.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/ibasso-amp14-amplifier-card-photo-matched.jpg?v=1791363466\" alt=\"The hand-matched iBasso AMP14\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/IBASSOAMP14-900x530a.jpg?v=1767178548\" alt=\"iBasso AMP14 amplifier card\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eTube\u003c\/th\u003e\n\u003ctd\u003eKorg Nutube 6P1 (6th generation), cathode input · Toshiba 2SK209 buffer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutputs\u003c\/th\u003e\n\u003ctd\u003e4.4mm balanced headphone (5.2Vrms) · 4.4mm balanced line out (1.8Vrms) · Pentaconn sockets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCircuit\u003c\/th\u003e\n\u003ctd\u003eJFET differential converter · 2 × JRC volume (4-channel balanced) · 4-channel balanced buffer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003ctd\u003eFrom the player’s amp battery · 4 DC-DC supplies (3.6V, 14V, ±8V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatibility\u003c\/th\u003e\n\u003ctd\u003eiBasso DX300 and DX320\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/ibasso-amp14-amplifier-card-photo-firmware.jpg?v=1791363471\" alt=\"Update the player firmware before fitting the AMP14\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch3\u003eGood to know\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUpdate the player’s firmware to the latest version before fitting the AMP14.\u003c\/li\u003e\n\u003cli\u003eWhen streaming, iBasso notes that subtle Wi-Fi interference may be heard while data buffers; it is almost inaudible at normal volumes and depends on your earphones’ sensitivity.\u003c\/li\u003e\n\u003cli\u003eThere is no 3.5mm output on this card; for two 3.5mm Nutube outputs see the \u003ca href=\"\/products\/ibasso-amp13-amplifier-card\"\u003eiBasso AMP13\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"iBasso","offers":[{"title":"BLACK","offer_id":57116099510659,"sku":"IBASSOAMP14-BLACK","price":249.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0960\/3199\/8339\/files\/img_proxy_2931c6ee-4111-41b5-84a6-77a3e88dcd2e.jpg?v=1767178568","url":"https:\/\/www.advancedmp3players.co.uk\/products\/ibasso-amp14-amplifier-card","provider":"amp3","version":"1.0","type":"link"}