Mackie ONYX 1640i, 10 years old hardly used good shape.

With improved Firewire routing and Pro Tools compatibility, this new Onyx design offers much more than a few tweaks...

Mackie's first generation of Onyx mixers were great mixers in their own right, but as interfaces, they were a little limited. The Firewire outputs from mixer to Mac/PC were all pre‑EQ, and the return only stereo. The newest models change this, and add other useful features including 24‑bit, 96kHz conversion and an optional driver for Digidesign's Pro Tools M‑Powered software.

The flagship of the Onyx range, this analogue desk has 16 mono mic/line channels, each with a four‑band, dual swept‑mid EQ and a 60mm channel fader. There are also six aux sends per channel, four sub‑groups, the main stereo outs and a comprehensive master section. Despite including all those controls and faders, the 1640i can fit in a standard 19‑inch rack, using the supplied adaptor brackets.