Ah, yes, Behringer. Still use it! This is the 'full stack' (attached) -
the SRC2496 (nice headphone amp that I use with HD 580s) but primarily to match inputs,
a DEQ2496 for Parametric Eq,
the DCX2496 for driver alignment, equalisation, and AK DAC output,
and finally the A500 amp(s).
Very useful for home-built speakers. Nowadays I just use it for sub-bass integration and timing.
But yes, there's better out there now.
In its day, a relatively cheap way to operate in the analog/digital domains.
View attachment 260193
Can be setup from a PC, though Win11 makes it tough to use right software and drivers via a USB-RS232 link.