Ult-Sound JAM-4S Eurorack Stereo Mixer Module

Ult-Sound JAM-4S is a 4-channel stereo mixer in Eurorack format, built using special low-noise audio operational amplifiers. True hands-on control with dual-layer knobs for each channel.


When used with stereo signals, the knobs act as balance and volume controls for the L and R channels. If nothing is patched into the B input, the A channel is automatically linked to B.


It works as a 4-channel stereo mixer, but can instantly reconfigure into:

• 4-channel mono-to-stereo converter
• Dual independent 4-channel mono mixers with clearly separated A/B buses on the panel