Universal-audio 1176LN Solid-State Manual de usuario

Model 1176LN Solid-State Limiting Amplifier Universal Audio Part Number 65-00046 Universal Audio, Inc. Customer Servic

Front Panel _____________________________________________________________ 10 (6) Meter - A standard VU meter that displays either the amount of gain

Rear Panel _____________________________________________________________ 11 1176 SA1 5243 (1) AC Power Connector / Fuse Holder - Connect a standard,

Interconnections _____________________________________________________________ 12 1 2 3 4 5 6 7 81 2 3 4 5 6 7 81176 SA  For most application

Insider’s Secrets _____________________________________________________________ 13 Vocals, Vocals, Vocals The 1176LN has long been considered the pr

Insider’s Secrets _____________________________________________________________ 14 Drums In the world of recording, there’s probably no greater chal

Insider’s Secrets _____________________________________________________________ 15 The 1176LN compression or limiting is, to some degree, program-dep

Insider’s Secrets _____________________________________________________________ 16 Controlled Distortion The unique sonic characteristics of the 117

The Technical Stuff _____________________________________________________________ 17 History of the 1176LN The original Universal Audio 1176, desig

The Technical Stuff _____________________________________________________________ 18 Revision E was introduced in the early 1970s and was the first t

The Technical Stuff _____________________________________________________________ 19 Compressor / Limiter Basics The function of a compressor is to

Notice _____________________________________________________________ ii This manual provides general information, preparation for use, installation

The Technical Stuff _____________________________________________________________ 20 Input Signal and Threshold The first and perhaps most significa

The Technical Stuff _____________________________________________________________ 21 maximum value. At very high ratios of 20:1 or greater (some limi

The Technical Stuff _____________________________________________________________ 22 Output (Makeup Gain) Finally, an output control is employed to

The Technical Stuff _____________________________________________________________ 23 To make such a cable, first acquire the following components: (

The Technical Stuff _____________________________________________________________ 24 Terminal Strip Connections Because it predated standard XLR con

The Technical Stuff _____________________________________________________________ 25 Maintenance Information Calibrations Zero Set The 1176LN met

The Technical Stuff _____________________________________________________________ 26 “Q” Bias The compression threshold is set using R59. Under norm

The Technical Stuff _____________________________________________________________ 27 Stereo Operation and Calibration With the use of an external 11

The Technical Stuff _____________________________________________________________ 28 Changing the Voltage Selector The 1176LN can operate at 115V or

The Technical Stuff _____________________________________________________________ 29 1176LN Circuit Details The fundamental problem facing Bill Putna

A Letter From Bill Putnam, Jr. _____________________________________________________________ iii Thank you for purchasing the 1176LN Solid-State Lim

The Technical Stuff _____________________________________________________________ 30 Input Section Figure 2 - Input Section As shown in Figure

The Technical Stuff _____________________________________________________________ 31 As shown in Figure 3, gain reduction is achieved by a Field Effe

The Technical Stuff _____________________________________________________________ 32 Output Amplifier The output amplifier is a Darlington pair foll

The Technical Stuff _____________________________________________________________ 33 As shown in Figure 5, this circuit controls the amount of compre

Glossary of Terms _____________________________________________________________ 34 Ambient noise - Low-level noise created by environmental factors s

Glossary of Terms _______________________________________________________________________ 35 dBm - Short for “decibels as referenced to milliwatt,” d

Glossary of Terms _____________________________________________________________ 36 Patch cord - A short audio cable with connectors on each end, typi

Recall Sheet _______________________________________________________________________ 37 Universal Audio, Inc. • 1700 Green Hills Rd. • Scotts Val

Specifications _____________________________________________________________ 38 Input Impedance 600 Ω, bridged T-control (floating) Output Load

Additional Resources/Product Registration/Warranty/Service & Support _______________________________________________________________________ 39 A

Important Safety Instructions _____________________________________________________________ iv Before using this unit, be sure to carefully read the

Table of Contents _____________________________________________________________ v A Letter From Bill Putnam, Jr. ...

The Two Page, Two Minute Guide To Getting Started _____________________________________________________________ 6 No one likes to read owner’s manua

The Two Page, Two Minute Guide To Getting Started _____________________________________________________________ 7 Step 4: On the right side of the f

Front Panel _____________________________________________________________ 8 23475516 (1) Input - Determines the level of the signal entering the 11

Front Panel _____________________________________________________________ 9 (5) Ratio - These four buttons determine the severity of the applied gain