Roland M-160 Line Mixer

Compact 16-channel mixer which could do double duty in your home studio
as well as on-stage, then the rack-mount M160 will definitely be of
interest to you.

It is almost an electronically transparent device. This is due in part
to the fact that the M160 has no onboard equalisation facilities.
Roland felt it unnecessary, in the light of its intended application as
a keyboard submixer, to add EQ as it would have made the unit
prohibitively expensive to manufacture and therefore unviable.

Although synthesizers are capable of much more varied tonal modification
than most mixer equalisation circuits, and you could argue that synth
sounds can be better modified at source, there would undoubtedly be a
need for channel EQ were the M160 being used to submix individual drum
machine outputs, for example.