Heres a hastily captured rundown on the hardware of a bss soundweb digital sound management & crossover unit.
not on the usual high quality camera unfortunately, only had phone on me.
chips on the conversion side are pretty nice tbh 
then again id be pretty pissed if they cut corners at that price; mind i dont use these personally.
chips are:
* AKM - AK5392
http://www.asahi-kasei.co.jp/akm/en/product/ak5392/ak5392_f01e.pdf
Enhanced Dual Bit 24-Bit ADC
Sampling Rate: 1kHz to 54kHz
Full Differential Inputs
S/(N + D): 105dB
Dynamic range: 116dB
S/N: 116dB
* CRYSTAL - CS4390
http://www.cirrus.com/en/products/pro/detail/P32.html
24-Bit, 48 kHz Stereo D/A Converter
Sampling Rate: 1 KHz to 50 kHz
Dynamic range: 106dB
S/N: 115dB
* CRYSTAL - CS3310
http://www.cirrus.com/en/pubs/proDatasheet/CS3310_F1.pdf
Stereo Digital (analog domain) Volume Control
Dynamic range: 116dB
thd/n: 0.001%
0.5db step size
127db total trim range
* ANALOG DEVICES - OPA275
http://www.analog.com/static/imported-files/data_sheets/OP275.pdf
Dual Bipolar/JFET, Audio Operational Amplifier
Low Noise: 6 nV/Hz
Low Distortion: 0.0006%
High Slew Rate: 22 V/s
Wide Bandwidth: 9 MHz
* ANALOG DEVICES - ADG411
http://www.analog.com/static/imported-files/data_sheets/ADG411_412_413.pdf
Precision Quad analog SPST Switches
* 2X MOTOROLA - XC56303PV80
http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=DSP56303&fsrch=1
24 BIT DSP, NOW DISTRIBUTED BY FREESCALE; PART DISCONTINUED BUT RELATED CHIPS HERE:
assumed to be:
80 mhz
24bit with 56bit capable barrel shifter.
* CUSTOM ASIC - SOUNDWEB
* and other support chips i couldnt be asked to document.
