Conifer Productions

From ideas to apps. From mobile to global.

Yamaha A4000 memory upgrade

My new old Yamaha A4000 sampler had only the factory default random access memory of four megabytes, which translates to about 48 seconds of monaural sound at a sampling rate of 44.1 kHz at 16-bit depth. Yes, we’re talking _mega_bytes, not gigabytes. Obviously a memory upgrade was in order, which also gave me a good excuse to have a look inside the unit. After removing the 16 screws in the case holding the cover in place, I found that it looked much like a PC – and in fact, it is a PC, although a special-purpose one. Read more →

Yamaha A4000 Professional Sampler

Recently I bought a Yamaha A4000 Professional Sampler on eBay, and since then I’ve been slowly building it up from its basic configuration. This acquisition is part of master plan that will be revealed in time… This unit was really very bare bones, with no manual, no expansions, just the default 4 MB of RAM, and no hard disk, but the standard 3.5” floppy drive. Most importantly, it didn’t come with the original content (the CD-ROM library) or any accessories (mainly the power cables for future expansions). Read more →