API pioneered the 500 series modular signal processing, and through the VPR Alliance, has established chassis
and power standards to encourage other pro audio manufacturers to build their own 500 series modules. Sonic
Circus carries a selection of the best 500 series modules from API, A- Designs, Purple, Chandler, Empirical Labs,
and many more. We also carry alternative modular systems from SSL, Rupert Neve, and Audient. Each of these
systems combine compact size with awesome signal processing power. Maybe its time for you to go modular.
Featured 500 Series
Get a great deal on our featured 500-series Modules. We recommend these as the best of the 500s.