This product is no longer available to order and will not be coming back into stock.
In Stock products are those that are currently held in stock at our Oxfordshire warehouse. This stock status is updated regularly but is subject to change at very short notice.
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Special Order items are those that are most often built to order. For these items, we tend to experience longer lead times as we negotiate them into the production line with our suppliers.
Exclusive products are sold only through one, or sometimes a very small number of dealers. As part of their commitment to the product’s exclusivity, they carry most of the available stock. To find out your best dealer for this product and to check its availability with them, click the ‘Recommended Dealers’ button under the product gallery on this page.
Designed 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.
Its 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.
The Head Box S3 B features a fully balanced signal chain for both RCA and XLR inputs, ensuring maximum channel separation and minimal noise.
Its power stage features two TPA6120A2 amplifier chips, which deliver up to 820 mW of fully balanced output power.
On 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.
Build 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.
Available 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.
Henley Says...
Even the biggest Pro-Ject headphone amp has a very small footprint, and the more compact ones are just impressively tiny, given the high-quality sound that they can create. These bits of kit really raise the bar in sound performance and reliability, sitting at home as part of bigger systems or as desktop units where they 'just work'. No muss, no fuss - immerse yourself in a bubble of your music at the push of a button.
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