{"product_id":"soulnote-p-3-preamplifier","title":"Soulnote P-3 Preamplifier","description":"\u003ch2 class=\"text-center\"\u003e\u003cstrong\u003eSoulnote P-3\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eFully integrated ultralow-loss custom relay RSR-2-12D and naked foil resistor. A monster preamplifier for truly live and enjoyable music performances!\u003c\/p\u003e\n\u003ch3\u003eType-R circuits are used inside the non-NFB balance amplifier\u003c\/h3\u003e\n\u003cp\u003eThe output line amplifier uses Type-R discrete non-NFB balance circuits that have been finely tuned for preamplifier use.\u003c\/p\u003e\n\u003cp\u003eIt also includes the newly-developed super high-quality naked foil resistors. With 1ohm emitter resistors and 3.9ohm output resistance, it delivers astonishing information detail and S\/N presence for superior power preamplifier drive capabilities.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Soulnote P-3 Preamplifier\" src=\"https:\/\/cdn11.bigcommerce.com\/s-6naz0isypk\/images\/stencil\/original\/image-manager\/csm-p-3-type-r-circuits-are-used-inside-the-non-nfb-balance-amplifier-3043fdff97.png?t=1687762318\"\u003e\u003c\/div\u003e\n\u003ch3\u003eHigh-end resistance switching method audio volume control circuit\u003c\/h3\u003e\n\u003cp\u003eThe best possible methods and the highest-quality parts create the best audio volume control. All the resistors in this unit are ultra high-quality, naked foil resistors. The switching relays also use the newly developed RSR-2-12D (Reference SOULNOTE Relay) ultralow loss custom relay. Volume control is configured with 144 steps in 0.5 dB intervals. Vibrancy and sound quality remain unaffected, even when lowering the volume.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Soulnote P-3 Preamplifier\" src=\"https:\/\/cdn11.bigcommerce.com\/s-6naz0isypk\/images\/stencil\/original\/image-manager\/p-3-high-end-resistance-switching-method-audio-volume-control-circuit.png?t=1687762336\"\u003e\u003c\/div\u003e\n\u003ch3\u003eGND switching input selector\u003c\/h3\u003e\n\u003cp\u003eOne major factor affecting sound quality deterioration in preamplifiers is GND loops and noise intrusion when connecting multiple sound sources. One way to eliminate this problem is to adopt a switching method on the GND and signal end so that unselected devices are held in a state where their connectors are unplugged. And to avoid any interference from the relay connection, the selectors in this unit all use the RSR-2-12D.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Soulnote P-3 Preamplifier\" src=\"https:\/\/cdn11.bigcommerce.com\/s-6naz0isypk\/images\/stencil\/original\/image-manager\/p-3-gnd-switching-input-selector.png?t=1687762356\"\u003e\u003c\/div\u003e\n\u003ch3\u003eComplete dual monaural construction\u003c\/h3\u003e\n\u003cp\u003eThis unit utilizes a dual monaural construction that employs two identical and dedicated sets of I\/O terminals, circuit boards, power supply circuits, power transformers, relay drive circuitry, and relay power supplies for the left and right channels. The microcomputer power supply, including the transformer, is also completely separate. A photocoupler keeps control signals completely separate from the relay, the only point of contact with the signal system.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Soulnote P-3 Preamplifier\" src=\"https:\/\/cdn11.bigcommerce.com\/s-6naz0isypk\/images\/stencil\/original\/image-manager\/p-3-top.png?t=1687762377\"\u003e\u003c\/div\u003e\n\u003ch3\u003e\n\u003cbr\u003eCompletely separate GND\u003c\/h3\u003e\n\u003cp\u003eThe left channel, right channel, and control systems each have a ceramic-insulated chassis to achieve complete separation of the left, right and control GND. Each GND can be connected through the rear switch settings, but because each GND is completely separate, the listening experience offers an incredible expansive three-dimensional sound field with expressive, natural sound.\u003c\/p\u003e\n\u003ch3\u003eExtremely powerful power transformer\u003c\/h3\u003e\n\u003cp\u003eEach side of the analog power transformer uses a 280 VA large-scale non-epoxy resin filling toroidal transformer. Including the control transformer, this unit can reach a total 600 VA, equivalent to the A-2 and the strongest capacity in SOULNOTE history. The transformer's audible drive capacity improves in proportion to better regulation made possible by the larger capacity. The P-3's high drive capabilities will change the grade of the power amplifier and the speakers.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Soulnote P-3 Preamplifier\" src=\"https:\/\/cdn11.bigcommerce.com\/s-6naz0isypk\/images\/stencil\/original\/image-manager\/p-3-extremely-powerful-power-transformer.png?t=1687762392\"\u003e\u003c\/div\u003e\n\u003ch3\u003e\n\u003cbr\u003eVertical transformer mounting\u003c\/h3\u003e\n\u003cp\u003eThe transformer is mounted vertically on the circuit board, so any harmful leakage flux is oriented parallel to the circuit board, to prevent possible circuit ingress.\u003c\/p\u003e\n\u003ch3\u003eOptical rotary encoder with double bearings and flywheel\u003c\/h3\u003e\n\u003cp\u003eThe flywheel effect from the large, solid aluminum volume knob and the two large-scale bearings used to eliminate mechanical backlash combine to create a solid and extremely precise volume control.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Soulnote P-3 Preamplifier\" src=\"https:\/\/cdn11.bigcommerce.com\/s-6naz0isypk\/images\/stencil\/original\/image-manager\/p-3-optical-rotary-encoder.png?t=1687762410\"\u003e\u003c\/div\u003e\n\u003ch3\u003e3-point spike grounding\u003c\/h3\u003e\n\u003cp\u003eThe spike connected directly to each of the three power transformer bases (three spikes total) eliminate harmful vibrations from the transformers before they can propagate to the chassis.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Soulnote P-3 Preamplifier\" src=\"https:\/\/cdn11.bigcommerce.com\/s-6naz0isypk\/images\/stencil\/original\/image-manager\/p-3-3-point-spike-grounding.png?t=1687762423\"\u003e\u003c\/div\u003e\n\u003ch3\u003eUnfixed AC inlet base\u003c\/h3\u003e\n\u003cp\u003eThe AC inlet uses the Jodelica ETP-600CU. By not mechanically fixing the aluminium AC inlet base, rear panel dumping is prevented, resulting in more expansive sound quality.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Soulnote P-3 Preamplifier\" src=\"https:\/\/cdn11.bigcommerce.com\/s-6naz0isypk\/images\/stencil\/original\/image-manager\/p-3-unfixed-ac-inlet-base.png?t=1687762438\"\u003e\u003c\/div\u003e\n\u003ch3\u003e\n\u003cbr\u003eAudiovisual source bypass function\u003c\/h3\u003e\n\u003cp\u003eEach XLR and RCA circuit has an audiovisual source bypass setting that can fix volume and output with zero gain.\u003c\/p\u003e\n\u003ch3\u003e\n\u003cbr\u003eFloating construction\u003c\/h3\u003e\n\u003cp\u003eThe Type-R circuit board and top cover are mounted in a floating construction without mechanical fixing. Freeing the P-3 from mechanical stress and the harmful effects of air dumps creates a natural sound quality and soundscape similar to removing the top cover.\u003c\/p\u003e\n\u003ch3\u003e\n\u003cbr\u003eGND anchor\u003c\/h3\u003e\n\u003cp\u003eThe left and right side metals are isolated from the main chassis by ceramic washers and are directly connected to separate left and right GND. This amplifies the benefits (more expansive soundscape and clearer feeling) of the left and right GND floating construction.\u003c\/p\u003e\n\u003ch3\u003e\n\u003cbr\u003eMultiple device connection system\u003c\/h3\u003e\n\u003cp\u003eMultiple devices can be connected using UART signals. Master and slave settings allow all slave settings to follow those of the master. This allows duplicating differences in the master volume to the slaves. This feature enables, for example, multi-amplifier volume control via a digital channel divider following DA conversion. And, of course, these connections completely avoid GND loops or other issues thanks to the floating GND control system.\u003c\/p\u003e\n\u003ch3\u003eRSR-2-12D (Reference SOULNOTE Relay)\u003c\/h3\u003e\n\u003cp\u003eAn ultra-low loss glass tube sealed reed relay that performs similar to a mercury relay as a base has been further customized. This is an original custom relay created by SOULNOTE that can reach sound quality levels comparable to that of wire. Each P-3 contains 94 of these relays.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Soulnote P-3 Preamplifier\" src=\"https:\/\/cdn11.bigcommerce.com\/s-6naz0isypk\/images\/stencil\/original\/image-manager\/d-3-rsr-2-12d-reference-soulnote-relay-1-.png?t=1687762455\"\u003e\u003c\/div\u003e\n\u003ch3\u003eUltra high-quality naked foil resistors\u003c\/h3\u003e\n\u003cp\u003eWe have applied artificial satellite grade ultra-high precision foil resistors with exceptional temperature properties and have made additional customizations with an emphasis on sound quality. These ultra-high sound quality resistors were developed in-house and employ a naked foil design to eliminate dumps with mold resin. Each P-3 contains 156 naked foil resistors.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn11.bigcommerce.com\/s-6naz0isypk\/images\/stencil\/original\/image-manager\/d-3-ultra-high-quality-naked-foil-resistors-1-.png?t=1687762466\" alt=\"Soulnote P-3 Preamplifier\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003ch2\u003eSPECIFICATIONS\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eInput\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eXLR x4, Cinch x4\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eOutput\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eXLR x3, Cinch x1 (selectable XLR or Cinch)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eTotal harmonic distortion\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e0.0015% (1.5Vrms)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFrequency characteristic\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e2Hz ～ 1MHz (±3.0dB)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eResidual noise\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e13μV (20kHz L.P.F.)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eMaximum output\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e21Vrms\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eOutput impedance\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e6.8ohm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eMaximum gain\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e11dB\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003ePower voltage\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e115V\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003ePower consumption\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e20W\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eMaximum external dimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eMain unit: 454(W) × 174(H) × 430(D)mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e25kg\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eIncluded accessories\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eSpike board, spikes, remote controller, power cable\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"The Music Room","offers":[{"title":"Premium Black","offer_id":51267869770009,"sku":"1872newSOUL-0002","price":26430.0,"currency_code":"USD","in_stock":true},{"title":"Premium Silver","offer_id":51267869802777,"sku":"1872newSOUL-0001","price":26430.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0844\/4225\/1545\/files\/Untitleddesign_93.jpg?v=1771347940","url":"https:\/\/tmraudio.com\/products\/soulnote-p-3-preamplifier","provider":"The Music Room","version":"1.0","type":"link"}