Although my posts may have been a bit cheeky, they were in no way disrespectful nor did I trash the product. I still would like to know why this product weighs as much as it does.
The 120Kg version of the Kassandra is a Limited Version,with the 2 out of 18 to be produced already out of the door,this is not the main version available.
Let me elaborate on JUST the weight though.
For this version we used three choke filtered capacitor banks,acting as quasi-battery energy sources. Total of 3F capacitors are fed via chokes and feeding the next filters/regulators for the 25 analog and digital PS of the converters. This solution was the quietest solution we could come up to,from 1Hz to several MHz.Batteries were excluded for various reasons.
4 separate power transformers feed everything,this was the only practical way of eliminating crossfeed of parasitic oscillations from rectifiers.
For the negative bias PSU of the tubes,we use tube rectification ,again for noise reduction.
Tube PSUs are consisted of their separate transformer, double choke filtration,xenon gas rectifiers and big film capacitors, sized 100mmD X 220mmH each.
70 local RC filters using rf chokes and polymer caps for each individual buffer-IC-PSU.This ,along with other active and passive solutions, allowed us to eliminate and cancel jitter,down to the actual IC refresh signal.
You can add the separate 16 analog reg for the four converter banks, IV transformer, and hefty output transformers, and easily reach the mentioned weight, after taking into consideration the stainless steel chassis.
My back and I wish there was way to make it smaller.