{"product_id":"pro-ject-tube-box-s3b-phono-stage","title":"Pro-ject Tube box S3B phono stage","description":"\u003cmeta charset=\"UTF-8\"\u003e\u003cmeta charset=\"UTF-8\"\u003e\n\u003ch3 data-start=\"737\" data-end=\"781\"\u003e“B” for Balanced – The Power of Symmetry\u003c\/h3\u003e\n\u003cp data-start=\"783\" data-end=\"1423\"\u003eThe \"B\" in \u003cstrong data-start=\"794\" data-end=\"811\"\u003eTube Box S3 B\u003c\/strong\u003e stands for \"balanced,\" and this design approach is at the heart of its superior performance. A balanced (or symmetrical) transmission uses both a hot (+) and cold (–) signal path, each carrying the same musical data. This method allows the gain stage to subtract any noise introduced along the way, leaving only the pure audio signal. Because of this dual-path system, the preamp requires two separate amplifier sections—an engineering feat rarely seen at this price point. The result is an incredibly clean, accurate reproduction of your vinyl recordings, setting a new standard for phono preamps in its class.\u003c\/p\u003e\n\u003ch3 data-start=\"783\" data-end=\"1423\"\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e5-pin mini XLR balanced input\u003c\/li\u003e\n\u003cli\u003eBalanced XLR outputs\u003c\/li\u003e\n\u003cli\u003eFully symmetrical \u0026amp; discrete gain stage\u003c\/li\u003e\n\u003cli\u003eEasy settings adjustment on the faceplate\u003c\/li\u003e\n\u003cli\u003e2x ECC83 tubes (replaceable)\u003c\/li\u003e\n\u003cli\u003eMM \u0026amp; MC capable\u003c\/li\u003e\n\u003cli\u003eDual mono design\u003c\/li\u003e\n\u003cli\u003eSemi-passive RIAA equalization\u003c\/li\u003e\n\u003cli\u003eSuperior low noise \/ low distortion\u003c\/li\u003e\n\u003cli\u003eAluminium casing protects against interference\u003c\/li\u003e\n\u003cli\u003eAvailable in silver or black\u003c\/li\u003e\n\u003cli\u003eMade in Europe\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1425\" data-end=\"1467\"\u003eUser-Friendly Features and Flexibility\u003c\/h3\u003e\n\u003cp data-start=\"1469\" data-end=\"2100\"\u003eCompared to the previous \u003cstrong data-start=\"1494\" data-end=\"1505\"\u003eS2 Line\u003c\/strong\u003e, the Tube Box S3 B offers enhanced usability, including front-panel access for all key settings. A major convenience for vinyl collectors is the ability to connect two turntables simultaneously, with each input’s settings automatically stored in memory. Whether you’re using a moving magnet (MM) or moving coil (MC) cartridge, the wide gain range from 40dB to 65dB allows for optimal signal matching. These features make the Tube Box S3 B a highly adaptable preamp that can seamlessly integrate into a wide range of HiFi systems, offering consistent volume levels across all your audio sources. \u003c\/p\u003e\n\u003cmeta charset=\"UTF-8\"\u003e\n\u003ch3 data-start=\"2102\" data-end=\"2142\"\u003ePrecision Tuning for Every Cartridge\u003c\/h3\u003e\n\u003cp data-start=\"2144\" data-end=\"2751\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eThe Tube Box S3 B also excels in offering precise loading options to suit virtually any cartridge. With settings as low as 50 pF for capacitance and 10 ohms for impedance, it can accommodate even the most sensitive setups, including those that rely on less-than-ideal cabling. This level of fine-tuning ensures you get the most out of your turntable and cartridge combination. Whether you're dealing with vintage records or modern pressings, the S3 B delivers exceptional sonic clarity and fidelity. It’s a preamp built not just for compatibility, but for maximizing the musicality of your vinyl collection.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube assembly:\u003c\/td\u003e\n\u003ctd\u003e2x ECC83 (12AX7)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput impedance:\u003c\/td\u003e\n\u003ctd\u003e10, 50, 100, 1k, 47k ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput capacitance:\u003c\/td\u003e\n\u003ctd\u003e50, 150, 300, 400 pF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGain (+6 dB using XLR out):\u003c\/td\u003e\n\u003ctd\u003e40, 45, 60, 65 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSNR MM (40 dB):\u003c\/td\u003e\n\u003ctd\u003e97 dBV, 105 dBV – ‘A’ weighted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSNR MC (60 dB):\u003c\/td\u003e\n\u003ctd\u003e83 dBV, 88 dBV – ‘A’ weighted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTHD at 1 kHz:\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;0.005% MM, \u0026lt;0.01% MC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTHD (20 Hz – 20 kHz):\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;0.1% MM, \u0026lt;0.03% MC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRIAA equalisation curve accuracy:\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;0.4 dB \/ 20 Hz – 20 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSubsonic filter:\u003c\/td\u003e\n\u003ctd\u003eAt 20 Hz with 18 dB\/octave\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput:\u003c\/td\u003e\n\u003ctd\u003e1x 5-pin mini XLR \/ 1x pair RCA phono sockets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLine-level output:\u003c\/td\u003e\n\u003ctd\u003e1x pair RCA, 1x pair XLR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower supply DC:\u003c\/td\u003e\n\u003ctd\u003e18V \/ 1000 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower consumption:\u003c\/td\u003e\n\u003ctd\u003e18V \/ 800 mA DC, \u0026lt;0.5 W in standby\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (W x H x D):\u003c\/td\u003e\n\u003ctd\u003e206 x 81 x 153 (164 with sockets) mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight:\u003c\/td\u003e\n\u003ctd\u003e1010 g without power supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Pro-Ject Audio","offers":[{"title":"Black","offer_id":56215545446786,"sku":null,"price":529.0,"currency_code":"GBP","in_stock":true},{"title":"Silver","offer_id":56215545479554,"sku":null,"price":529.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/6652\/0962\/files\/5FE53969-0CAB-4554-B665-754B59EDA9E7.jpg?v=1768427545","url":"https:\/\/premiumhomeaudio.co.uk\/products\/pro-ject-tube-box-s3b-phono-stage","provider":"Premium Home Audio","version":"1.0","type":"link"}