SIDBlaster is a new sound-card for the ZX-Spectrum. The features are: MOS 6510 CPU, 64Kb RAM, Direct playing of PSID and RSID tunes, PAL/NTSC compatible, 4 SID's (2x6581, 2x8580) and full C64-interrupt system. When the SIDBlaster is fully functional, it will be rebuild with the help of a FPGA. The hardware design is from Sergey Bagan (Prusak) and the software is done by Alexander Alexandrow (Byteman).
More information about the SIDBlaster/ZX (Russian > English)