You need to qualify excellent... a Cello Pallette is going to cost you well more than $10K... the Manley, Accuphase, Z-Sys, GML are all going to cost north of $5K. The Z-Sys won't work for you because it operates strictly in the digital domain and doesn't have A/Ds - D/As. There is also the TACT room correction devices. Anything less than these eq's is a compromise and should probably be avoided. You are better off with room treatments than introducing an eq.