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.
RC. 436 C Compressor Amplifier
The 436C Compressor Amplifier is a self-powered, level-controlling amplifier with a versatility which makes it a desirable part of most audio installations. In response to a strong input signal, it will reduce gain up to 30 db automatically, rapidly, and quietly, without the introduction of thumps. The 436C utilizes variable threshold/compression ratio and release time controls, permitting maximum flexibility in virtually any type of installation. The 436C Amplifier is intended for use in automatic level-control applications in recording. The front panel contains all controls and a meter which indicates db of compression and VU. A gain control is provided at the input, and the input and output transformers permit use on balanced lines. The 436C occupies only 2 unit of rack space in the standard rack. The wide range of application and excellent performance of this compressor amplifier will make it a valuable part of any good sound system.
The LA-610 MkII combines a hand-built in the USA, all-tube, vintage mic preamp design - heard on classic albums by Coldplay, The Beach Boys, and Van Halen - with authentic Teletronix T4 opto-compression circuitry. This classic channel strip design, with its warm preamp tone and smooth, natural-sounding compression, is updated with modern, user-requested features like true compressor bypass, larger metering, increased output, and an auto-switching power supply. The LA-610 Mk II's T4 tube compressor provides the same ultra-warm limiting that has made the Teletronix LA-2A the king of fat opto compression. The electro-optical detector, or "T4 cell," is the heart and soul of the Teletronix LA-2A. Its photo resistors are the crucial circuit components, giving the compressor its signature warmth, making it a "go-to" for tracking vocals, bass, or acoustic guitars. Taken together, it's impossible to get a bad sound out of the LA-610 MkII's legendary preamp and compression circuits.
Upon its release in 1967, the 1176 Limiting Amplifier became an instant classic because of its unique lightning-fast attack and release times, musical Class A output stage, and its wide range of sounds, ranging from subtle, near-transparent compression, to all-out drive and distortion. Universal Audio's 1176LN Classic Limiting Amplifier is a handbuilt, faithful reproduction of Bill Putnam Sr.'s original visionary design - an iconic piece of audio history that had a hand behind classic recordings from Led Zeppelin, The Rolling Stones, Michael Jackson, and more.