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Summary of Contents for Universal Audio 8110
- Page 1 Model 4110/8110 Four and Eight Channel Precision Microphone Preamplifiers Universal Audio Manual Number 65-1001 Revision 1.00...
- Page 2 The 4110 and 8110 Preamps Thank you for choosing the Universal Audio Precision Microphone Preamplifier The X110 series is based on the discrete class A analog technology from Universal Audio’s award winning 2192 converters. Fidelity The X110 series preamps offer totally transparent, crystal clear natural fidelity as well as flexible control over the input impedance and transformer saturation resulting in increased flexibility making it a great choice for a wide variety of applications.
- Page 3 • Line level inputs on every channel • Rugged 3U rack mount chassis In addition to the 4110 & 8110 Preamps, Universal Audio has released reproductions of the classic Teletronix LA-2A Leveling Amplifier and 1176LN Limiter as well as the 610 tube preamp and 2108 microphone preamplifier, which are based on preamps used in legend Bill Putnam Sr.’s custom...
- Page 4 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, as well as in the operating instructions.
- Page 5 Universal Audio 4110 and 8110 preamps. The information contained in this manual is subject to change without notice. Universal 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.
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Page 6: Table Of Contents
Table Of Contents Specifications........................1 Operating Instructions......................3 Front Panel ....................... 3 Rotary Controls ......................4 Input Select ..................... 4 Gain......................5 Level ......................5 Function Switches..................... 6 Polarity ....................6 Low Cut....................6 Mic Pad....................6 +48 V (Phantom Power) ................6 Output Meter...................... -
Page 7: Specifications
4110 / 8110 Performance Specifications Mic Input Impedance………………………………………………………………..500 ohms, 2k ohms Balanced Line Input Impedance……………………………………………………………….6.5k ohms Instrument Input Impedance………………………………………………………..47k ohms, 2.2M ohms Max Mic Input Level, No Pad………………………………………………..…+3 dBu, 0.1% THD+N Ratio Max Mic Input Level With Pad………………………………………...………+14 dBu, 0.1% THD+N Ratio Max Instrument Input Level…………………………………………………..+25 dBu, 0.1% THD+N Ratio Max Output Level into 600 ohms……………………………………………..…+23 dBu, 1% THD+N Ratio Max Output Level into 100k ohms…………………………………………..…+30 dBu, 0.2% THD+N Ratio... - Page 8 Output Meter Reference Levels Red…………………………………………….…………………………...………..+10 dBu Yellow………………………………………………………………………...……….+4 dBu Green (upper)……………………………………………………………….…………..-2 dBu Green (lower)…………………………………………………………………………..-10 dBu Input Meter Reference Levels Red………………………………………………………..………1.0% THD+N Ratio (40V pk-pk at JP1) Orange………………………………………………………………2% THD+N Ratio (20V pk-pk at JP1) Green…………………………………………………………….0.07% THD+N Ratio (12V pk-pk at JP1) General Power Requirements…………………………………………………………..…100-240 VAC (50-60 Hz) Max Power Consumption, 4110………………………………………………………………………55W Max Power Consumption, 8110………………………………………………………………………93W...
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Page 9: Operating Instructions
The 8110 does not provide Hi-Z instrument inputs. 4110 Front Panel HI-Z INPUTS LEVEL LEVEL LEVEL LEVEL OUTPUT OUTPUT OUTPUT OUTPUT UNIVERSAL AUDIO SHAPE SHAPE SHAPE SHAPE 4110 INPUT INPUT INPUT INPUT PRECISION CLASS A... -
Page 10: Rotary Controls
4110 & 8110 Front Panel Channel Blocks LEVEL LEVEL OUTPUT OUTPUT SHAPE SHAPE INPUT INPUT GAIN GAIN LINE HI-Z LINE 2.0K 2.0K 2.0M INPUT INPUT +48V +48V Figure 3: 4110 & 8110 Front Panel Channel Blocks Note: The 8110 Front Panel Controls are identical to the 4110 except the Hi-Z Input position is eliminated on the INPUT control knob. -
Page 11: Gain
mic preamps, keyboards, sound modules and drum machines or any device with a line level output. The 4110/8110 may be used as a “tone box” in this configuration, offering a variety of sonic colors based on the front panel control settings. •... -
Page 12: Function Switches
Function Switches (backlit push buttons) Polarity The Polarity switch is the top switch in the column of four round push buttons located on the lower right side of the channel block. The polarity switch will light up when enabled and is labeled with the symbol: “∅”. -
Page 13: Shape Control Switch
SHAPE Control Switch The SHAPE control is a three position mini toggle switch located just below the top rotary knob on the left side of the channel block. NOTE: Only SHAPE position 2 has effect on the 4110 Instrument Input as the input transformer is only used for Mic &... -
Page 14: Rear Panel
100-240V 50/60Hz FUSE RATING: T 4A 250V REPLACE FUSE WITH SAME RATING AND TYPE ONLY! LINE OUT LINE OUT UNIVERSAL AUDIO, INC SANTA CRUZ, CALIF. - U.S.A. Figure 4: 4110 Rear Chassis LINE LINE POWER IN: 100-240V 50/60Hz FUSE RATING:... -
Page 15: Voltage Select
Voltage Select The 4110 / 8110 contains a universal auto-sensing, filtered, multi-stage regulated power supply, which supports 100-240VAC and 50-60Hz power for trouble-free operation worldwide. No switch setting is required when changing from 115 to 230 volt use or vice versa. -
Page 16: Historical Notes
The companies Putnam started, Universal Audio, Studio Electronics, and UREI, built products that are still in regular use decades after their development. In 1999 Bill Jr. and James Putnam re-launched Universal Audio and merged with Kind of Loud technologies – a leading audio software company – with two goals: Reproduce classic analog recording equipment designed by their father and his colleagues, research and design new recording tools in the spirit of vintage analog technology. -
Page 17: The 1176 And La-2A Compressors
The 1176 LN The original Universal Audio 1176LN was a major breakthrough in limiter technology – the first true peak limiter with all transistor circuitry offering superior performance and a signature sound. Evolved from the popular Universal Audio 175 and 176 vacuum tube limiters, the 1176LN retained the proven qualities of these industry leaders, and set the standard for all limiters to follow. -
Page 18: The La-2A
1176LN, whose LN stands for low noise. Numerous design improvements followed, resulting in at least 13 revisions of the 1176. The D and E 'black-face' LN revisions are widely considered to be the best-sounding models; therefore Universal Audio modeled our reissue after these two models.
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