{"product_id":"pro-ject-head-box-s3-b","title":"Pro-Ject Head Box S3 B","description":"\u003ch3\u003ePro-Ject Head Box S3 B – Fully Balanced Headphone Amplifier\u003c\/h3\u003e\n\u003cp\u003eThe Pro-Ject Head Box S3 B is a high-performance headphone amplifier designed for listeners who demand precision, clarity, and control. Built around a true fully balanced topology, it supports both balanced and single-ended headphones while integrating effortlessly into desktop and hi-fi systems, delivering refined, low-noise amplification with audiophile accuracy—available through Soundium.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully balanced signal path:\u003c\/strong\u003e Maximises channel separation and reduces noise for cleaner, more precise sound reproduction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBalanced and single-ended headphone support:\u003c\/strong\u003e Compatible with 4.4 mm Pentaconn, 4-pin XLR, 6.3 mm, and 3.5 mm headphone connections\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRCA and XLR analogue inputs:\u003c\/strong\u003e Seamlessly integrates with both balanced and unbalanced source components\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimised power output:\u003c\/strong\u003e Carefully tuned to drive a wide range of headphone impedances without sacrificing sound quality\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull aluminium chassis:\u003c\/strong\u003e Rigid, shielded enclosure enhances durability and protects sensitive internal circuitry\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCustomer Benefits\u003c\/h4\u003e\n\u003cp\u003eHead Box S3 B allows headphones to perform at their full potential by combining balanced amplification with controlled output power. The result is improved imaging, tighter bass, and greater detail, whether you are using high-impedance studio headphones or modern low-impedance designs, all within a compact and elegant form.\u003c\/p\u003e\n\u003ch4\u003eQuick Specs\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 20.6 x 5.5 x 15.3 cm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.95 kg (without power supply)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax output power:\u003c\/strong\u003e 820 mW (32 Ω), 320 mW (300 Ω)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeadphone impedance support:\u003c\/strong\u003e Min. 8 Ω\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInputs:\u003c\/strong\u003e RCA, XLR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeadphone outputs:\u003c\/strong\u003e 3.5 mm, 6.3 mm, 4.4 mm balanced, 4-pin balanced XLR\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eWhat’s in the Box\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePro-Ject Head Box S3 B headphone amplifier\u003c\/li\u003e\n\u003cli\u003eExternal power supply\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eUse Cases \/ Ideal For\u003c\/h4\u003e\n\u003cp\u003eIdeal for audiophiles, headphone enthusiasts, and desktop hi-fi users who want balanced headphone amplification with flexible connectivity. Well suited for critical listening, home studios, and high-quality personal audio setups.\u003c\/p\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eCompatible with balanced and single-ended headphones and analogue source devices via RCA or XLR outputs, including DACs, streamers, and preamplifiers.\u003c\/p\u003e\n\u003ch4\u003ePros \u0026amp; Cons\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e✅ Pros:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTrue fully balanced amplification at a compact size\u003c\/li\u003e\n\u003cli\u003eSupports a wide range of headphone connections\u003c\/li\u003e\n\u003cli\u003eExcellent channel separation and low noise floor\u003c\/li\u003e\n\u003cli\u003eSolid aluminium construction with refined design\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e⚠️ Cons:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNo digital inputs or internal DAC\u003c\/li\u003e\n\u003cli\u003eSingle analogue loop output only via RCA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Pro-Ject Head Box S3 B sets a high benchmark for balanced headphone amplification in its class. With precise engineering, flexible connectivity, and a focus on pure sound quality, it is a compelling choice for serious headphone listening—find it at Soundium.\u003c\/p\u003e","brand":"Pro-Ject","offers":[{"title":"Black","offer_id":54636744835340,"sku":"PJ-BOXS3B","price":399.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/7416\/0652\/files\/1_19fc5840-aee5-4135-913c-8fe7c01aeee0.jpg?v=1768560946","url":"https:\/\/soundium.com\/hr\/products\/pro-ject-head-box-s3-b","provider":"Soundium","version":"1.0","type":"link"}