This is an article culled from archive material, circa 1997.

The CR-1604 is a 16-channel, 4-bus mic/line mixer of high build and
audio quality. My personal theory is that Greg Mackie developed and
shipped this desk to service that sector of the market identified by
Alesis with their
1622 monolithic mixer, a truly abysmal
piece of hardware.
The CR-1604 is innovative compared with conventional 16:2 mixers
in that the per-channel audio muting actually switches the audio to a
second stereo bus. Other features include a rotatable jack-pod which
can be connected in several orientations (some of which, including the
illustrated configuration, require the additional
rotopod kit) and
high-quality mic inputs on the first eight channels. (There is a kit
to provide the rest of the channels with mic inputs.) The mixer is
rackmountable in various orientations, and can be mounted flush
(useful for top-mounting across a
Gearhead/CP Cases Eurorack case).
The mixer is designed with
unity gain; every level control
(including the fader channels) has a centre-detent at unity. There is
a generous total of seven mono sends per channel: each channel can
switch between the monitor (prefade) or send 1, and between sends 3+4
or 5+6. There are four stereo returns.
The CR-1604 is partially MIDI-automatable; the optional
OTTOMIX
kit (an internal board plus external 1U rackmount unit) provides
channel level, mute, and some aux level control.
The main drawback of the mixer is the weak EQ section: each channel
features high, mid and low EQ only, with no sweep. The EQ has a clean,
American sound, compared with the rich EQ generally found on British desks.
Weak EQ aside, I would recommend the Mackie as a high-quality
16-channel mixer. The automation is only partial, which is a drawback,
and expensive (for the same price, one could pick up a second-hand
Yamaha DMP7) but the Mackie quality is legendary. The
four-bus, seven-send architecture is simple and versatile, and as a
rackmount the mixer is very compact (although those in need of more
channels in a rackmount might look at the
LM-3204 instead).