Vintage Moog 900 and ARP 2500 Modules
The VM900 Collection contains 27 modules that the developer describes as covering the commonly produced 900-series modules, including early 901-style and later 921-style oscillators in single and grouped versions. It includes lowpass and highpass 904 ladder filters, a 904C coupler for combined filter curves, and the CP3 mixer in early and later circuit styles.
The VM2500 Collection contains 21 modules that recreate the ARP 2500 modular synthesizer. Cherry Audio says all 18 original modules are reproduced, along with a full-function oscilloscope, a spring reverb and a mixer module that was never produced. Bipolar CV attenuators were added to modulation inputs for compatibility with other Voltage Modular modules.
A 960-series style sequencer and 962 switch are part of the VM900 set. Cherry Audio adds a 1/12 V quantized output on each sequence row, which simplifies building chromatic melodies.
The VM1630 Frequency Shifter is one of the standout modules in the VM900 set. The developer says its DSP reproduces the module's range, from subtle vibrato to ring-modulation-style metallic tones.






