@markf31
Are you thinking the AVA non-tube "SLR" all solid state version to pair up with your Aleph?
In other words, what's driving you to the SLR vs AVA FET Valve or QS preamp (2nd hand) with tubes you could fine tube-tune later... kinda stuck with all SS. Is it the the hi/low filters or low gain buttons on the SLR version...