А че Вавез С1 уже отменили? Там есть кроссовер и сайдчен вроди.Там вроди даже много сайдченов.

The Sonalksis CQ1 is a multi-band, frequency-selective dynamics processor,
allowing independent compression or expansion of four freely adjustable filter
bands. While typical multi-band dynamics processors utilise cross-over
partitioned frequency bands and are designed primarily to compress composite
program material, the CQ1 uses the principle of 'dynamic equalisation' and is
therefore suitable for a much broader range of applications. The CQ1 greatly
extends the possibilities of dynamics processors with the ability to refine specific
frequency compression or expansion with unparalleled accuracy.