990 discrete op-amp is the finest op-amp available for audio
applications. If you want superior sound quality, the 990 can provide
it. The 990 is used in the most critical audio applications. Leading
recording studios, remote recording companies, disc and CD/DVD
mastering facilities, and TV and radio stations use the 990 for
superior performance. Several mic preamp products
using the 990 are available from The John Hardy Company.
contact us for more details and