ACME4 is a professional centralcontrol system for musical synchronisation signals. The abbreviation ACME stands for "Advanced Clock Management Engine". It is the only device in the world to generate a MIDI master clock that is absolutely jitter-free.

• derives a highly accurate clock from any audio workstation or computer
• generates 4 separate clock streams
• each clock stream has its individual MIDI output. 2 streams also generate 24-ppq signals (“Roland sync”), while the other 2 provide trigger and reset signals for analog sequencers and arpeggiators.
• each clock stream can be time-shifted in relation to the master clock, in extremely small increments as well as in 16th-note steps.
• each clock stream can be set to double or half tempo, and can be turned on and off without loosing synchronicity.
• a swing or shuffle factor can be set individually for each clock stream. The swing pattern can be the same for all 4 streams, or it can be a different one for each. A software editor for these patterns is included.
• complete settings of all controls can be stored and recalled. All parameters can be remote controlled via MIDI. A setup mode allows to set precise absolute offsets for each clock, to compensate for technical reaction time differences of the various devices connected.
• like all SND products, the ACME-4 has been designed with great attention to detail. The 32-bit risc-processor ensures lightning-fast reaction. High-grade components (gold-plated jacks, switches, and push-buttons, sealed Alps potentiometers etc.) and a rugged metal casing ensure decades of reliable operation.
• USB input for power and for connection with your computer
• audio input for clock signal (1/4" socket)
• channel 1&2: MIDI output and DIN Sync output
• channel 3&4: MIDI output and analog Clock/Reset output (1/4" socket)