Stagg SIA‑ST – compact headphone amplifier Stagg SIA‑ST is a compact and versatile headphone amplifier designed for professional musicians, sound engineers, and demanding home users. It enables personal stage or studio monitoring, delivering a clean, balanced, and powerful signal to your headphones. With its compact size and durable enclosure, it’s ideal for touring and studio setups alike.

Product Features Dual balanced XLR inputs allow connection of a stereo mix or two mono sources. 3.5 mm TRS headphone output with volume control. Mono/stereo switch and channel balance adjustment for flexible monitoring. Battery-powered (9V) or DC 9V power adapter included – perfect for mobile use.

Reliable and clear sound The Stagg SIA-ST delivers high-quality audio with a wide frequency response (20 Hz – 80 kHz) and very low distortion (THD+N under 0.01%). A high signal-to-noise ratio (>90 dB) ensures crystal-clear sound even at high volumes – perfect for in-ear monitoring or critical listening.

Versatile use cases This amplifier is perfect for live performance, rehearsals, recording studios, or home audio setups. It can be used as a standalone monitor on stage or as an extra headphone feed in the studio.

Technical Specifications Frequency Response: 20 Hz – 80 kHz (+/– 0.5 dB) THD+N: < 0.01% SNR: > 90 dB (A-weighted) Inputs: 2 x balanced XLR Output: 1 x 3.5 mm stereo jack Power: 9V battery or 9V DC adapter (included) Dimensions: 45 x 125 x 85 mm Weight: 270 g Materials and construction The device features a durable ABS and metal housing. Its compact footprint and ergonomic design make it easy to mount on a belt or rack. Built for rugged stage and studio environments.

Included in the box Stagg SIA-ST – headphone amplifier 9V DC power adapter User manual Why choose it? Looking for a compact, reliable, and easy-to-use headphone amplifier? Stagg SIA‑ST delivers excellent sound quality, portability, and flexibility. Perfect for stage monitoring, in-ear setups, and studio use – it’s a must-have tool for musicians and engineers who value clean sound and mobility.