{"product_id":"pro-ject-head-box-s3-headphone-amplifier","title":"Pro-Ject Head Box S3 Headphone Amplifier","description":"\u003cdiv\u003e\n\u003cdiv class=\"product-price-promotion\"\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv id=\"promotions\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp id=\"productVariantHeadline\" class=\"product-feature-headline\"\u003eA high-performance headphone amplifier built around a unique, fully balanced topology that redefines what is possible in its price class.\u003c\/p\u003e\n\u003cul id=\"productFeatureListFirst6\" class=\"align-left product-features-list\"\u003e\n\u003cli\u003eCompact and stylish build\u003c\/li\u003e\n\u003cli\u003eBypass RCA loop output for additional amplifier\u003c\/li\u003e\n\u003cli\u003eSolid metal casing protects from interferences\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eBuilt to Perform, Built to Last\u003c\/h2\u003e\n\u003cp class=\"p1\"\u003eDesigned for audiophiles who demand power, precision, and flexibility, the Head Box S3 B supports both balanced and single-ended headphones and integrates seamlessly into modern desktop and hi-fi systems.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eIts carefully engineered circuit design ensures a clean, dynamic, and highly controlled presentation, allowing headphones to truly perform at their full potential. By combining true balanced amplification with comprehensive connectivity and practical system integration, Head Box S3 B offers a compelling solution for listeners seeking reference-level performance in a compact and accessible format.\u003c\/p\u003e\n\u003ch2\u003eFully Balanced Power\u003c\/h2\u003e\n\u003cp class=\"p1\"\u003eThe Head Box S3 B features a fully balanced signal chain for both RCA and XLR inputs, ensuring maximum channel separation and minimal noise.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eIts power stage features two TPA6120A2 amplifier chips, which deliver up to 820 mW of fully balanced output power.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eOn the unit itself, the balanced headphone connections are available via 4.4 mm Pentaconn and XLR outputs, while single-ended headphones are supported thanks to 3.5 mm and 6.3 mm outputs. A bypass RCA loop output allows easy connection to an additional amplifier or further system expansion.\u003c\/p\u003e\n\u003ch2\u003eMade in Europe\u003c\/h2\u003e\n\u003cp class=\"p1\"\u003eBuild quality is a central design focus of the Head Box S3 B. The amplifier is housed in a premium, full aluminium enclosure that provides both mechanical stability and effective shielding. All control elements and buttons are crafted from high-quality aluminium, underscoring the product’s refined feel and durability.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eAvailable in silver or black, the Head Box S3 B is made in Europe, reflecting a commitment to precise manufacturing, long-term reliability, and high engineering standards.\u003c\/p\u003e\n\u003cul id=\"productSpecificationList\" class=\"product-specifications-list\"\u003e\n\u003cli\u003e\n\u003cdiv\u003eAnalogue Loop Output\u003c\/div\u003e\n\u003cdiv\u003e1 pair RCA\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eCrosstalk\u003c\/div\u003e\n\u003cdiv\u003e\u0026lt; -81 dB\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eRCA Input(s)\u003c\/div\u003e\n\u003cdiv\u003e1 Pair\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eBalanced XLR Input(s)\u003c\/div\u003e\n\u003cdiv\u003e1 Pair\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eHeadphone Output\u003c\/div\u003e\n\u003cdiv\u003e3.5mm + 6.3mm + 4.4mm balanced + 4 Pin XLR balanced\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eHeadphone Amp Output Power\u003c\/div\u003e\n\u003cdiv\u003e480mW\/8 Ohms, 680mW\/16 Ohms, 820mW\/32 Ohms, 320mW\/300 Ohms\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eHeadphone Amp Signal-to-Noise Ratio\u003c\/div\u003e\n\u003cdiv\u003e\u0026gt;115 dB\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eHeadphone Output Impedance\u003c\/div\u003e\n\u003cdiv\u003emin 8 Ω\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eHeadphone Amp THD\u003c\/div\u003e\n\u003cdiv\u003e\u0026lt;0.002 %\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eHeadphone Amp Frequency Response\u003c\/div\u003e\n\u003cdiv\u003e\u0026lt; -0.25dB at 20Hz-20kHz\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eHeadphone Amp Gain\u003c\/div\u003e\n\u003cdiv\u003e15 \/ 9 (RCA \/ XLR) dB\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eExternal Power Supply Rating\u003c\/div\u003e\n\u003cdiv\u003e18V-1A DC\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eDimensions (W x H x D)\u003c\/div\u003e\n\u003cdiv\u003e206 x 55 x 170 mm\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eWeight\u003c\/div\u003e\n\u003cdiv\u003e0.95 kg\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Pro-Ject","offers":[{"title":"Black","offer_id":56638630429045,"sku":null,"price":329.0,"currency_code":"GBP","in_stock":true},{"title":"Silver","offer_id":56638630461813,"sku":null,"price":329.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2222\/0805\/files\/PJAAHEADBOXS3B1-BLK-ProductMain_StockImage_Blackfront.jpg?v=1768923604","url":"https:\/\/www.kronosav.com\/products\/pro-ject-head-box-s3-headphone-amplifier","provider":"Kronos AV","version":"1.0","type":"link"}