The Shadow Hills Dual Vandergraph
 is a direct descendant of the Shadow Hills Mastering Compressor and 
maintains its reputation of unquestionable quality and exceptional 
performance – in a 500 Series format. It’s inner workings are developed 
from the discrete gain cells of the Mastering Compressor which are 
combined with the Optograph’s extremely flexible Sidechain Filter 
matrix. This combination provides great possibilities for new recording 
techniques and the dynamic control.
This stereo compressor’s fully discrete audio path is Class-A and features Shadow Hills’ custom Iron Transformers.
The controls are: 
Ratio, Filter, Compression and Output Level.
Just
 like the Mastering Compressor, the Compression and Output Level 
controls are Swiss made twenty-four position attenuators. The Ratio 
switch, selects between: 1.2: 1, 2.5: 1, 4: 1, 8: 1.
In addition to changing ratios, each selection changes preset attack and recover times.
The
 Sidechain Filter Matrix controls the frequency sensitivity of the 
side-chain. The positions are: 90 hertz, 150 hertz, 250 hertz and 
Bandpass.
- Input impedance 20k
 - Minimum load impedance 600 ohms
 - Stereo
 - Fully Class-A
 - Discrete audio path
 - Discrete gain cells from Mastering Compressor
 - Sidechain Filter Matrix from Optograph
 - Swiss made discrete attenuators
 - Military Spec build quality
 - Meets the specifications of the VPR Alliance
 
There is no limit to the number of Dual Vandergraphs that can fit into any 500 series rack.
IDR 52.750.000