Available as an assembled Module and as a DIY project.
No info about availability.
nw2s mult
The nw2s treatment for the humble mult.
We've built one circuit that can be configured as either buffered or passive. It's simple enough to be done as a DIY project in under an hour. The buffered version contains a high-performance Analog Devices OPA4134 audio op-amp. There's plenty of space for your fingers to work the cables. The four groups of 1x3 mults are normalized together, turning it into a 1x12 mult. It can be run from +/-12V to +/-18V rails for enhanced audio performance. It uses both a keyed power header and and our near zero voltage dropout MOSTFET reverse voltage protection circuit.
These merchants probably sell this module. Huh?