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Summary of Contents for Universal Audio 2-1176
- Page 1 Model 2-1176 Dual 1176LN Limiting Amplifier Manual Number 65-0801 Revision 1.00 Universal Audio, Inc. www.uaudio.com 330 Encinal St. Santa Cruz, CA 95060 (831) 466-3737 voice (831) 466-3775 fax www.uaudio.com...
- Page 2 That highly recognizable blackface 1176 sound was best captured by the version that we are reproducing. In addition to the 1176LN and 2-610, Universal Audio has released reproductions of the classic Teletronix LA-2A Leveling Amplifier and the 2108 microphone preamplifier which is based on the 1108 line amps that were used in my father’s studios.
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Page 3: Important Safety Instructions
IMPORTANT SAFETY INSTRUCTIONS Before using this unit, be sure to carefully read the applicable items of these operating instructions and the safety suggestions. Afterwards keep them handy for future reference. Take special care to follow the warnings indicated on the unit itself, as well as in the operating instructions. Water and Moisture –... - Page 4 Audio, Inc. makes no warranties of any kind with regard to this manual, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Universal Audio, Inc. shall not be liable for errors contained herein or direct, indirect, special, incidental, or consequential damages in connection with the furnishing, performance, or use of this material.
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Page 5: Table Of Contents
Meter Function................... 4 Meter Calibration ................4 Bypass / Comp................... 5 Link / Dual..................5 Stereo Operation ................5 2-1176 Rear Panel ..................6 Connectors..................6 Input Loading ..................6 AC Power ................... 6 Fuse ....................6 Voltage Select..................6... -
Page 6: 2-1176 Specifications
2-1176 Specifications Selectable, 15k Ω or 600 Ω Input Impedance: 600 Ω (floating) Output Load Impedance: External Connections: XLR Connectors Frequency Response: +/- 1 dB. 20Hz to 20 kHz Gain: 40 dB, +/- 1dB Distortion: Less than 0.5% T.H.D. from 50 Hz to 15 kHz with limiting, at 1.1 seconds release... -
Page 7: Front Panel
Both channel A and B controls are identical and behave as described below (except in Stereo Link mode). See page 8 for using the 2-1176 in Stereo Link mode. 1176LN Front Panel ATTACK RELEASE METER Slow Fast Slow Fast ATTACK... -
Page 8: Input Level
In order to set the limiter to provide a specific amount of compression, first adjust the Input and Output controls to their full counterclockwise (CCW) position. Set the Attack and Release controls to “5”. Set the Meter switch to GR (Gain Reduction). Rotate the Input Level control CW until the meter bounces down to –3 to –5 dB. -
Page 9: Meter Function
Meter Calibration The 0dB gain reduction reading may need to be calibrated. 1) Turn the 2-1176 on and warm up for 5 minutes. 2) Set the meter knob to the GR position. 3) With the Input control full off (CCW) adjust the GR Zero Set trim pot so the meter reads 0 dB. -
Page 10: Bypass / Comp
When using the 2-1176 for limiting or compressing stereo signals, select LINK on the front panel as described in the paragraph above. The 2-1176 is primarily a dual mono unit but will work for processing stereo. With the Link/Dual switch in the LINK position, channel A Attack and Release controls become master controls and the channel B Attack and Release controls have no effect. -
Page 11: 2-1176 Rear Panel
T2A 250V, 5mm x 20mm Voltage Select The 2-1176 can operate from 100 V to 240 VAC / 50-60 Hz. The internal power supply is self sensing and will automatically work throughout this voltage range. -
Page 12: History
History 1176LN It was Bill Putnam himself who, in 1966, was responsible for the initial design of the 1176. Its circuit was rooted in the 1108 preamplifier which was also designed by Putnam. As is evident from entries and schematics in his design notebook, he experimented with the recently developed Field Effect Transistor (F.E.T.) in various configurations to control the gain reduction in the circuit. - Page 13 Allen Sides has always been known for his golden ears when it comes to the sound of equipment. The owner of Ocean Way Studios in Los Angeles and Nashville, he's also a speaker designer and engineer who is especially respected for his work with live musicians, including orchestra and string dates.
- Page 14 “The 1176 has that same kind of phenomenon, where, when you patch something through a Neve equalizer and you don't even engage the EQ, it sounds better. It's just a combination of the amps.” “I've also used the 1176 as a stereo buss compressor-you just have to be a little bit careful that your mixes don't go one sided.
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