I bought a PCM70 for comparison purposes. I'm able to replicate the famous Concert Hall reverb with these parameters:
Type: Large Hall
Time: 2.92s
Size: 60.2
Color: 6.02
Lo Cut: 20 Hz
Hi Cut: 9510 Hz
Input Diffusion: 44.9%
Diffusion Time: 42.9%
Wall Diffusion: 100%
Echo Density: 0
Pre Delay: 7.9 ms
Early Delay: 0.0%
Early Level: -16.6 dB
Reverb Level: -1.0 dB
Mod Depth: 35.8%
Mod Rate: 0.369 Hz
The sound is virtually indistinguishable to my ears. I measured the frequency response and it's almost identical.
Type: Large Hall
Time: 2.92s
Size: 60.2
Color: 6.02
Lo Cut: 20 Hz
Hi Cut: 9510 Hz
Input Diffusion: 44.9%
Diffusion Time: 42.9%
Wall Diffusion: 100%
Echo Density: 0
Pre Delay: 7.9 ms
Early Delay: 0.0%
Early Level: -16.6 dB
Reverb Level: -1.0 dB
Mod Depth: 35.8%
Mod Rate: 0.369 Hz
The sound is virtually indistinguishable to my ears. I measured the frequency response and it's almost identical.