Which Digital processor/equalizer ?

I am looking for flat response without phase shift variations

I need to correct my last response. My suckout is 8db from 45 -65hz

Trying to correct my room. The behringer and audyssey are for room equalization. I checked with z systems and they are currently doing new ideas and transformations

I have a midbass suckout in my room which is 32x20x12 cathedral ceiling. my system is no slouch in filling this room
Von Schweikert vr-7se
Dartzeel amp and preamp
emmlabs cdse player
vpi tnt table and V.D cabling throughout

When talking to Albert von Schweikert he advised me to send the speakers back to be revoiced and calibrated to my rooms anomalies. With the size of speaker and difference in electronics I thought it was wiser to try some sort of room equalizationin which he agreed. He has used the behringer and z systems in his own system and found them to be highly beneficial. I guess the bottom line for me is to make the midbass region more prominent without any other loss

The midbass from about 60 -100 hz is the problem. I talked to z- systems and they discontinued the rdp and said they couldn't help my problem at this time. Audyssey told me that my preamp was not applicable for their product. A bit confusing to say the least. I will check out Tact. Most of these companies are obviously working at solving multi channel equalization.

"Acoustat6".... I use a rive test cd2 and an SPL meter to arrive at this conclusion. After talking to Rives today I realise an equalizer may not help matters. I will still have the suckout in this region no matter how much gain I increase. Rives explained the stress on the amp and the speakers by trying to fix the suckout by increasing gain. Since I can't move my speakers too much I believe a good subwoofer placed properly should alleviate the bass problem and further optimize a good system