I am having issues with my Bass Managment after calibrating using several methods. I don't quite understand how to correctly calibrate my bass, I have Avia, DVE, and a SPL meter. I set the crossovers to all 90Hz on front rear and center, I am thinking of going with 120 for rear/center and 90 or 60 for front. I've been using AVIA first and using their test tone per channel to set the DB on the sub itself to matching level with speakers. Then I pop in DVE and use their 5.1 sweep on Dolby 5.1 and adjust using the LFE on the receiver. Then I do it in DTS and adjust with DTSLFE on receiver. Overall I am quite confused as to what Im doing wrong. Im not sure if the crossover works well at all in my receiver. Its very hard to peg the DB reading on the analog SPL I have measuring the sub, it sways ack and forth 5Db during all the tests, is this a reflection problem??