This item has been carefully inspected, tested and serviced by our expert tech team. All vintage, used and open-box items we sell are backed by an industry-leading warranty. Expand your studio with confidence knowing that we have you covered.

The Shadow Hills Industries Dual Vandergraph follows the lineage of the Shadow Hills Mastering Compressor maintaining its reputation of undeniable quality and exceptional performance, in a convenient 2-slot API 500 Series format module. Its inner components consist of the discrete gain cells from the Mastering Compressor combined with the Optograph’s extremely flexible Sidechain Filter matrix. It features a fully discrete Class A audio path and Shadow Hills' custom Iron Transformers. This combination provides exceptional dynamic control making the Dual Vandergraph a premium stereo compressor for your 500 Series rack!

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.

Though the Dual Vandergraph operates in stereo, it is controlled by a single set of variable attenuators. It will function as normal with just one channel connected.

• Ratio
• Filter
• Compressor
• Output

• Class A fully discrete stereo compressor in dual-slot 500 Series module format
• Four compression ratios (1.2:1, 2.5:1, 4:1, and 8:1)
• Exceptional dynamic control on virtually any recorded source
• Discrete gain cells from the Shadow Hills Mastering Compressor
• Selectable sidechain filters: 90 Hz, 150 Hz, 250 Hz, bandpass
• Swiss-made discrete rotary attenuators
• Military Spec build quality
• Meets the specifications of the VPR Alliance

Vintage King offers an industry-leading level of technical service and warranty support on our used and vintage items. Our used item warranty periods are as follows:

• Analog Outboard Gear – 1 Year
• Microphones – 1 Year (excluding capsules, tubes, and ribbon elements)
• Speakers – 1 Year (excluding drivers)
• Digital Outboard Gear – 30 Days