Samson SA-SPHONE S-phone Headphone Mixer Amplifier

The Samson S-phone Headphone Mixer/Amplifier is a four-channel monitoring solution built for studios, rehearsal spaces, and live sound environments where multiple performers need independent headphone mixes. Each of the four channels features its own volume control, 2-band EQ, 8-segment LED metering, and a stereo auxiliary input with balance control — enabling the popular "More Me" mixing approach where each musician can blend their personal source against the main mix without disrupting anyone else's monitoring.

With three headphone outputs per channel (one on the front panel and two on the rear), the S-phone can serve up to 12 pairs of headphones simultaneously. The ST/2CH mode switch on each channel provides additional flexibility for stereo or split-mono configurations, while the Mute switch offers quick signal control. Two master stereo inputs feed the unit, and the stereo link output allows daisy-chaining multiple S-phone units for larger setups. The amplifier delivers maximum output power regardless of headphone impedance, ensuring consistent volume levels across different headphone models used in the same session.