Manley Variable Mu Mastering Version | Stereo Tube Compressor/Limiter w/ M/S Mod

Description: Manley Variable Mu Mastering Version | Stereo Tube Compressor/Limiter with Mid/Side Mod Manley M/S modification allows various approaches to Mid/Side recording, playback and processing Variable Gain vacuum tube (per channel): 2 x 6BA6 single pentodes wired in in triode mode Stepped Greyhill rotary switches with 1% precision metal-film resistors Manley input and output transformers with pure nickel laminations in mu-metal case Flat frequency response from 20Hz–25kHz The Stereo Variable MU Limiter Compressor Mastering Version with Mid/Side Modification from Manley Labs is a dynamic signal processor using a 5670 dual-triode tube for peak reduction and compression. The tube is constantly re-biased by the vacuum tube rectified side-chain control voltages, resulting in a smooth change in gain. This mastering version replaces all conductive plastic pots with Greyhill rotary switches. The 1% metal-film resistors on the Greyhill switches not only provide recallability, but also deliver an improvement in sound quality. The Mid/Side modification (also known as the Vertical/Lateral or Sum/Difference) allows for stereo encoding and decoding as well as image enhancement processing capabilities. Instead of an active circuit, the left switch changes the wiring of the input transformer, while the right switch changes the output wiring. When both M/S switches are activated, the stereo signal is encoded and decoded, providing the ability to compress the mid, sum or mono part of the sound on channel one, while channel two's compressor controls the side or difference. The Mid/Side switches replace the high-pass side-chain position on the front panel. The HP/SC are ganged and moved to the power switch position, while the power switch has been moved to the rear of the chassis. The compressor setting offers a soft-knee 1.5:1 ratio, while the limit mode offers a sharper knee with ratios ranging from 4:1 to 20:1. With higher limiting settings, the knee will start to soften. Distortion effects can be achieved by turning up the input and lowering the output while using little or no compression. The side-chain high-pass filter uses a 1-pole, 6 dB/octave filter that attenuates 1 to 3 dB at 100 Hz and 4 to 6 dB at 50 Hz. Once engaged, the compressor / limiter will not respond as strongly to low frequency content and will prevent audible "pumping" when processing bass-heavy music. The input of the Variable MU is ganged, but can still process two independent channels with separate threshold and output controls. With the link switch engaged, the unit operates in true stereo mode and excels at processing 2-track, final mix, or mastering compression and limiting. Handmade in the USA, the unit is housed in a 2U steel chassis with a CNC-machined 1/4" faceplate that is also inlaid with laser-engraved inserts. The Variable MU ships with an IEC power cable. Pro Audio LA is an authorized dealer Full manufacturer warranty (Pro Audio LA extends warranty to 2 years) Gear ships FREE via UPS/FedEx Ground w/ tracking & insurance These pieces are occasionally backordered All transactions must be completed on eBay About Pro Audio LA Pro Audio LA provides solutions focused on optimizing workflows. Better workflow equals better music. We sell gear, build custom cabling, design systems, integrate systems, and install systems. We also do acoustic consulting, design, and installation for both recording studios, residential spaces, and commercial spaces. We also have demo rooms in our store in Glendale, CA where you can come and try out gear, or rent out one of our acoustically treated rooms for a recording or podcast session. SSL Room Podcast Room Visit our eBay store here to view all of our products and services.

Price: 6749 USD

Location: Glendale, California

End Time: 2023-09-11T08:57:00.000Z

Shipping Cost: 0 USD