The elysia skulpter 500 features an integrated compressor operated by just a single knob. Its potentiometer sets the threshold based on a fixed 3:1 ratio and a soft knee characteristic, while the attack and release parameters were selected for their universal usefulness.
The all discrete class-A circuitry provides a premium quality audio path, and the RMS detector has been optimized to react noticeably well on vocals and instruments. This alone makes for a very musical and unobtrusive dynamics section on a par with the best compressors the market has to offer.
But wait – there’s more! The compressor’s easy and effective one-knob-operation is supported by elysia’s signature Auto Fast function, which will automatically reduce the attack to its shortest value when strong impulses and transients require it.
Technically, the discrete VCA responsible for reducing the gain is placed in negative feedback with its following op amp. The beauty of this is that the dynamics section is only part of the signal chain when it is actually working. If there is no compression going on, the corresponding circuitry will be completely bypassed.
In order to have a visual support of what is going on inside the compressor section, a single LED that changes brightness indicates the intensity of the gain reduction process.