{"product_id":"box-x3-mm-phono-bluetooth50-tube-preamp-rca-aux-input-6180966170807","title":"BOX X3 MM Phono Tube Preamplifier with Bluetooth 5.0 Receiver, RCA and 3.5mm AUX Inputs and Power Adapter","description":"\u003cp\u003eThe BOX X3 tube preamplifier brings an MM turntable, a 3.5mm AUX source or Bluetooth audio into a home stereo system through its RCA line output. It connects to powered speakers or a separate amplifier; it does not drive passive speakers directly.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eThe MM phono stage converts a moving-magnet turntable signal to line level with RIAA equalization.\u003c\/li\u003e\n\u003cli\u003eBluetooth 5.0 reception supports wireless audio input. The unit is a receiver and does not transmit Bluetooth audio.\u003c\/li\u003e\n\u003cli\u003eRCA phono and 3.5mm AUX inputs provide wired connections alongside Bluetooth.\u003c\/li\u003e\n\u003cli\u003eTwo included vacuum tubes form part of the preamplifier design.\u003c\/li\u003e\n\u003cli\u003eThe RCA output feeds powered speakers or an external amplifier. Passive speakers require a separate amplifier.\u003c\/li\u003e\n\u003cli\u003eA 12V 1.5A power adapter is included; its documented AC input range is 100–240V. The preamplifier itself uses 12V DC.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eModel: BOX X3\u003c\/li\u003e\n\u003cli\u003eInputs: RCA phono, 3.5mm AUX and Bluetooth 5.0\u003c\/li\u003e\n\u003cli\u003ePhono compatibility: MM, moving-magnet turntables\u003c\/li\u003e\n\u003cli\u003eOutput: RCA line level\u003c\/li\u003e\n\u003cli\u003eEqualization: standard RIAA\u003c\/li\u003e\n\u003cli\u003eTotal harmonic distortion: ≤0.1%; signal-to-noise ratio: ≥98dB\u003c\/li\u003e\n\u003cli\u003eOutput voltage test: 650mV with a 3mV input at 1kHz\u003c\/li\u003e\n\u003cli\u003eDevice power input: 12V DC\u003c\/li\u003e\n\u003cli\u003eIncluded power adapter: 12V 1.5A output, AC 100–240V input\u003c\/li\u003e\n\u003cli\u003eDimensions: 4.66 × 3.85 × 1.29 inches\u003c\/li\u003e\n\u003cli\u003eProduct weight: 320g, approximately 0.71lb\u003c\/li\u003e\n\u003cli\u003eIncluded: one preamplifier, two vacuum tubes, one Bluetooth antenna, one power adapter and one user manual\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Fosi Audio","offers":[{"title":"Default Title","offer_id":53101781287223,"sku":"SHP-0807-AE5DF4","price":82.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/8115\/9991\/files\/box-x3-mm-phono-bluetooth50-tube-preamp-rca-aux-input-6180966170807-6eb0511e4f5cdefa.webp?v=1791291354","url":"https:\/\/ohmoratech.com\/products\/box-x3-mm-phono-bluetooth50-tube-preamp-rca-aux-input-6180966170807","provider":"OHMORA TECH","version":"1.0","type":"link"}