While I'm thinking about it, another low cost option is the Symetrix SX201 parametric EQ. Another discontinued, but well built, Symetrix product. Not as versatile as the DBX, but cheap. Three band but no shelving. Half rack size so you will need a rack shelf. Maybe @$60-75 a channel on e-bay - sometimes cheaper. Make sure you get the right wallwart with it or you will need to buy a new power unit (they aren't that expensive, but it's a pain). Also makes a nice portable live unit paired with an SX202 mic pre.