Very little used. When BSS put them on the market, it was worth-it seems almost 1300 euros.
The cutoff frequencies are located
-150 Hz for the low frequency
- 8 kHz for the "high-end"
Editable on the map.
This machine is more for the "sound reinforcement" that an adjustment of monitoring.
The quality / price used is very good.
With experience, I would look for a pair for my technician, who believes that this reference is adequate to its system.