This 3U VU unit is suitable to any Studer Reel to Reel machine – or any other recorder – which comes without VU meters to enable control and monitor of recording and playback levels. Ensures calibrated and un-calibrated level control modes of recording and playback. In principle it works as a studio console.The VU meter indicator circuitry is a modified replica of the Studer A810 (also A812, A816) including a switchable standard VU meter mode and a peak program meter (PPM) mode. In addition, there is a switch to reduce the sensitivity to -10dB. -10dB  VU mode is also useful when calibrating the recorder with a test tape where  tones are recorded at a level of -10 dB below nominal and you do not have external audio frequency VU meter.

Unit’s “0” value for VU  meters are calibrated to “normal” Studer (studio standard) level – +4dB. “0” level can be adjusted to other values – if you want so.

All parts are top quality, schematics used are from top manufacturers. Operational Amplifiers are exchangeable – mounted in sockets. We use Texas Instruments INA137PA, DRV134PA.

In the input and output sections are additional RCA sockets. You can connect signal source which does not have XLR sockets.

Please see our separate listing – VU https://www.ebay.com/itm/133448334603 unit in Meter Bridge configurations – full setup with a stand (trolley) – and side panels with a bracket – like original Studer – trolley/meter bridge version. Stand is very durable and solid – made from 2mm steel tubing. Adjustable from horizontal to vertical position in 15 deg increments. Factory powder coated in “Studer Grey” RAL 7016 yet can be coated in any RAL color. Three standard colors are Studer Grey RAL 7016, Black RAL 9005 and Metalic Aluminium RAL9006.