{"product_id":"artag-signature-1619","title":"ARTAG SIGNATURE 1619","description":"\u003cp\u003e5N Single-Crystal Silver EI Fully Coupled Transformers\u003cbr\u003e1619 Single-Ended Class A Integrated Amplifier\u003c\/p\u003e\n\u003cp\u003eCreated as part of Raphaelite’s flagship ARTAG SIGNATURE Series, the 1619 is a pure single-ended Class A integrated tube amplifier conceived without the usual constraints of size, material, or cost. At its heart is a matched pair of vintage American 1619 output tubes, supported by a 5T4 rectifier and dual 6J7 driver tubes, delivering 5.5W per channel with the immediacy, tonal density, and natural flow that define a carefully executed single-ended design.\u003c\/p\u003e\n\u003cp\u003eEvery ARTAG SIGNATURE 1619 is built around Raphaelite’s reference-grade fully coupled transformers, wound with imported 5N single-crystal silver wire over Japanese EI cores. With transformer-coupled signal paths and a zero-feedback topology, the amplifier is designed to preserve musical texture, harmonic richness, and high-frequency delicacy without relying on global negative feedback. A tube-rectified linear power supply, separated high- and low-voltage sections, suspended grounding, chassis shielding, tube isolation, and soft-start circuitry work together to achieve an exceptionally quiet foundation.\u003c\/p\u003e\n\u003cp\u003eThe construction reflects the same no-compromise philosophy. A substantial brass chassis is framed in custom solid walnut and complemented by brass meters and CNC-machined controls. Inside, an ALPS RK50 dual-gang carbon-film potentiometer, custom high-voltage capacitors, JENSEN capacitors, WBT-AG pure-silver RCA sockets, and NEUTRIK silver-plated XLR connectors complete a signal path built around premium analog components. At over 41 kg, the ARTAG SIGNATURE 1619 is as much an expression of traditional amplifier craftsmanship as it is a reference-level listening instrument.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAmplifier Topology:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Single-Ended Class A\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eFeedback:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Zero Global Negative Feedback\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eOutput Tubes:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 2 × 1619\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eDriver Tubes:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 2 × 6J7\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eRectifier Tube:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 1 × 5T4\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eRated Output Power:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 2 × 5.5W into 8Ω, THD = 5%\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eInput Sensitivity:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 320mV\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eInput Impedance:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 100kΩ\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eOutput Impedance:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 8Ω \/ 16Ω\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSignal-to-Noise Ratio:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 90dB\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eFrequency Response:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 15Hz–40kHz, ±3dB, THD = 5%\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTransformers:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Fully Coupled EI Transformers Wound with 5N Single-Crystal Silver\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eVolume Control:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e ALPS RK50 100kΩ × 2 Carbon-Film Potentiometer\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAnalog Inputs:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 3 × RCA, 1 × XLR\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSpeaker Outputs:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 8Ω \/ 16Ω\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePower Consumption:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 77W\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eDimensions:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 520 × 380 × 230mm (W × D × H)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eNet Weight:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 41kg\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Raphaelite","offers":[{"title":"Default Title","offer_id":67683587719446,"sku":"ARTAG1619","price":35500.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1012\/8516\/7382\/files\/DSCF6998_1_s.jpg?v=1791670735","url":"https:\/\/aeonstage.com\/products\/artag-signature-1619","provider":"Aeon Stage","version":"1.0","type":"link"}