{"product_id":"pro-ject-tube-box-s2","title":"Pro-Ject Tube Box S2 – Tube-based Phono Amplifier for MM and MC Pickups","description":"\u003cp dir=\"auto\"\u003eExperience the classic tube sound with the Pro-Ject Tube Box S2 - a compact and innovative phono preamplifier featuring replaceable ECC83 tubes and a fully discrete circuit design without op-amps. This premium RIAA preamp from Pro-Ject Audio Systems delivers a warm, relaxed, and full-bodied sound with lush midrange and impressive detail. Perfect for both Moving Magnet (MM) and Moving Coil (MC) cartridges, and with tube rolling capability, you can easily fine-tune the sound character to your own taste.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThe Tube Box S2 is designed for audiophiles who want the analog warmth of tube technology in a small, high-quality format - with low noise and high dynamics even with demanding MC cartridges.\u003c\/p\u003e\n\u003ch4 dir=\"auto\"\u003eWhy choose the Pro-Ject Tube Box S2 tube phono preamplifier?\u003c\/h4\u003e\n\u003cp dir=\"auto\"\u003eWith its dual mono construction and convenient front controls, it offers exceptional flexibility and musicality. The robust build quality effectively protects against vibrations and interference for a cleaner vinyl experience.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eMain features and benefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaceable tubes\u003c\/strong\u003e - two ECC83 (12AX7) tubes that can be easily swapped for personalized sound tuning and tube rolling\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully discrete circuit design\u003c\/strong\u003e - no op-amps, only carefully selected components for a cleaner and more musical signal path\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible cartridge matching\u003c\/strong\u003e - five impedance settings for MM (10-2k ohms), fixed 47 kohm for high-output MC, plus six capacitance values (47-587 pF) - all adjustable on the front panel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConvenient front controls\u003c\/strong\u003e - gain selector (40-63 dB) and subsonic filter for easy optimization during listening\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual mono construction\u003c\/strong\u003e - separate circuit for each channel for better channel separation and deeper stereo image\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-noise FET input\u003c\/strong\u003e - extremely low noise and high dynamics, even at high gain settings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust sandwich chassis\u003c\/strong\u003e - aluminum and metal construction that dampens vibrations and electromagnetic interference\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eTechnical specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eTubes: 2 × ECC83 (12AX7, replaceable)\u003c\/li\u003e\n\u003cli\u003eGain: 40 \/ 43 \/ 50 \/ 60 \/ 63 dB\u003c\/li\u003e\n\u003cli\u003eInput impedance: 10 \/ 100 \/ 1k \/ 2k ohms (MM) \/ 47 kohm (MC)\u003c\/li\u003e\n\u003cli\u003eInput capacitance: 47 \/ 147 \/ 267 \/ 367 \/ 487 \/ 587 pF\u003c\/li\u003e\n\u003cli\u003eSignal-to-noise ratio: Up to 80 dB (A-weighted at 40 dB gain)\u003c\/li\u003e\n\u003cli\u003eTHD (total harmonic distortion): \u0026lt;0.02-0.05 %\u003c\/li\u003e\n\u003cli\u003eRIAA equalization accuracy: ±0.4 dB (20 Hz-20 kHz)\u003c\/li\u003e\n\u003cli\u003eSubsonic filter: 20 Hz with 18 dB\/octave (activated via front button)\u003c\/li\u003e\n\u003cli\u003eInputs\/outputs: 1 × pair RCA (input) \/ 1 × pair RCA (output)\u003c\/li\u003e\n\u003cli\u003ePower supply: 18 V \/ 1000 mA DC (external power supply included)\u003c\/li\u003e\n\u003cli\u003eDimensions (W × H × D): 103 × 73 × 131 mm (including connectors)\u003c\/li\u003e\n\u003cli\u003eWeight: 410 g (without power supply)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Pro-Ject","offers":[{"title":"Black","offer_id":56355189948740,"sku":"563551899487","price":5290.0,"currency_code":"SEK","in_stock":true},{"title":"Silver","offer_id":56355190014276,"sku":"563551900142","price":5290.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0919\/1306\/0676\/files\/Pro-Ject_Tube_Box_S2_01.jpg?v=1770463988","url":"https:\/\/www.mychifi.se\/en\/products\/pro-ject-tube-box-s2","provider":"MYC HiFi","version":"1.0","type":"link"}