купил сей девайс (VPROM версии 2) , звучит очень даже добротно.
Как сам описывает автор "This emulation is based on reverse engineering and old datasheets; it uses a C++ custom core with modeled AM6070 DAC, Oscillators, counters, OPAMPS & Filters.
и самое главное можно загружать EPROM других драм машин
The VPROM provides the ability to replace some voices with external compatible 8bit companded EPROM data, which opens up the machine to LINNDRUM (LM-2) samples, LINN 9000, DMX, DX, DRUMTRACKS etc... Even load your own custom made. You can switch between custom loaded and stock EPROMS on the fly.