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SOLO/610

Classic Tube Preamplifier

& DI Box

Universal Audio Part Number 65-00055

Revision B

Universal Audio, Inc.

1700 Green Hills Road

Scotts Valley, CA 95066-4926

www.uaudio.com

Customer Service & Tech Support: +1-877-MY-UAUDIO

Business, Sales & Marketing: +1-866-UAD-1176

Outside USA: +1-831-440-1176

Содержание SOLO/610

Страница 1: ...niversal Audio Part Number 65 00055 Revision B Universal Audio Inc 1700 Green Hills Road Scotts Valley CA 95066 4926 www uaudio com Customer Service Tech Support 1 877 MY UAUDIO Business Sales Marketing 1 866 UAD 1176 Outside USA 1 831 440 1176 ...

Страница 2: ...he furnishing performance or use of this material Copyright 2011 Universal Audio Inc All rights reserved This manual and any associated artwork product designs and design concepts are subject to copyright protection No part of this document may be reproduced in any form without prior written permission of Universal Audio Inc Trademarks SOLO 610 4 710d 710 Twin Finity 4110 8110 SOLO 110 2 610 LA 61...

Страница 3: ...r disconnecting it 7 Grounding of the Plug This unit is equipped with a 3 wire grounding type plug a plug having a third grounding pin This plug will only fit into a grounding type power outlet This is a safety feature If you are unable to insert the plug into the outlet contact your electrician to replace your obsolete outlet Do not defeat the purpose of the grounding type plug 8 Cleaning Follow ...

Страница 4: ...tions 9 Interconnection Diagrams 11 Quickstart 12 SOLO 610 Overview 13 History of the SOLO 610 15 Glossary of Terms 16 Maintenance 18 Hardware Variants 18 AC Input Voltage Conversion 18 Fuse 19 Service 19 Session Recall Sheet 20 Block Diagram 21 Specifications 22 Additional Resources 24 Universal Audio Website 24 Product Registration 24 Warranty 24 Service Support 24 ...

Страница 5: ...when the basic tracks are beautifully recorded Our design goal for the SOLO 610 was to capture the original character of the 610 creating a preamp that would induce that a ha feeling we ve felt when hearing music recorded in its most natural inspired form The controls of the SOLO 610 are simple and essential we added only those features required for practical use without needless duplication of fu...

Страница 6: ...erence in the overall quality of your recordings The SOLO 610 preamp will flatter the cheapest to the most esoteric microphones Direct Input DI plays an important role in the recording chain too if an electric instrument is going straight to the recorder without the use of an amplifier The basic principle is to amplify an instrument level signal up to a useable line level It is very common to use ...

Страница 7: ...anest most uncolored signal from the SOLO 610 set the GAIN to a low value while increasing the LEVEL knob until the appropriate output level is attained 2 LEVEL Knob LEVEL determines the amount of signal sent from the input stage to the final output stage and the rear panel OUTPUT jack LEVEL behaves like a master volume control where GAIN controls the amount of coloration and LEVEL controls the fi...

Страница 8: ...ivates the low frequency roll off high pass filter When in the FLAT position down all frequencies are amplified equally for full spectrum sound When in the LO CUT position up frequencies below 100 Hz are attenuated This is typically used to eliminate rumble and other unwanted low frequencies from an incoming signal For more information see page 14 9 POLARITY ø Switch Determines the polarity of the...

Страница 9: ... is NOT auto sensing Changing the AC input from the shipped configuration requires moving an internal jumper and changing the fuse to avoid damaging the unit UNIVERSAL AUDIO INC UNIVERSAL AUDIO INC SCOTTS VALLEY CALIF USA SCOTTS VALLEY CALIF USA PUSH 12 13 14 15 16 17 18 POWER IN 100VAC 50 60Hz 115VAC 50 60Hz 230VAC 50 60Hz FUSE RATING 100VAC T300mA 250V 115VAC T250mA 250V 230VAC T125mA 250V REPLA...

Страница 10: ... for connection to inputs that require a mic level signal such as another mic preamp a mixer mic input or similar low level input For additional information about this switch see Application Notes on page 12 16 OUTPUT Jack This balanced XLR connector outputs the SOLO 610 signal Note that Pin 2 is positive when the front panel Polarity switch is in the down position IN ø Pin 3 is positive when the ...

Страница 11: ...C DI LO Z HI Z 48V OFF LOCUT FLAT OUTø INø REAR MIC LINE LIFT GND DI for instrument HI Z OFF FLAT IN Match to mixer input If humming set to LIFT Switch Positions FRONT MIC DI LO Z HI Z 48V OFF LOCUT FLAT OUTø INø REAR MIC LINE LIFT GND MIC LO Z 48V if needed LO CUT if needed IN LINE If humming set to LIFT Mixer line input optimum SOLO 610 SOLO 610 rear SOLO 610 rear Guitar Instrument Guitar Amplif...

Страница 12: ... power input and an AC power outlet Step 10 Put the rear panel POWER switch in the up position to apply power to the unit The front panel POWER LED will illuminate Allow a few moments for the tubes to warm up sound will not be output immediately upon applying power Step 11 Confirm the device plugged into the SOLO 610 input is generating a signal by viewing the front panel SIGNAL LED the LED will i...

Страница 13: ...k Negative feedback is a design technique whereby a portion of the preamplifier s output signal is reversed in phase and then mixed with the input signal This serves to partially cancel the input signal thus reducing gain A benefit of negative feedback is that it both flattens and extends frequency response as well as reducing overall distortion Turning the SOLO 610 GAIN knob clockwise i e increas...

Страница 14: ...n upward peak when the speaker pushes outward placing positive sound pressure on the mic However the waveform display of the second mic the one behind the amp will show a downward negative valley when the speaker pushes forward because from the back of the amp the speaker moves away from the mic thus creating negative sound pressure If these two signals are mixed the positive waveform from the fro...

Страница 15: ...till in use at Ocean Way Studios site of the original United Recording facility Allen Sides who purchased the studio from Putnam personally traveled to Hawaii to collect the 610 console that was used to record the live Hawaii Calls broadcasts Celebrated engineer Jack Joseph Puig has long been ensconced in Studio A at Ocean Way with the 610 and a stunning collection of vintage gear where he has app...

Страница 16: ... volts RMS dBV Short for decibels as referenced to voltage without regard for impedance thus one volt equals one dBV DI Short for Direct Input a recording technique whereby the signal from a high impedance instrument such as electric guitar or bass is routed to a mixer or tape recorder input by means of a DI box which raises the signal to the correct voltage level at the right impedance Dynamic Mi...

Страница 17: ...y A passive central routing station for audio signals In most recording studios the line level inputs and outputs of all devices are connected to a patch bay making it an easy matter to re route signal with the use of patch cords Patch Cord A short audio cable with connectors on each end typically used to interconnect components wired to a patch bay Ribbon Microphone A type of microphone that work...

Страница 18: ...uit board 3 Locate the voltage connector see photo on next page It is the removable RED female connector at the end of four wires black blue white and orange exiting the back of the large power transformer at the rear of the unit This connector is plugged into one of two four conductor WHITE male plug headers on the circuit board behind the large power transformer These headers are labeled on the ...

Страница 19: ... receptacle by inserting a small standard screwdriver into the slot at the upper edge then sliding the plastic fuse holder out of the AC input receptacle 3 Remove the old fuse Note there may be two fuses here The active fuse is held in place with a plastic clip and has its ends exposed the enclosed box is for a spare fuse which is inactive 4 Insert the new fuse into the clip then reinsert the plas...

Страница 20: ...20 Session Recall Sheet SOLO 610 CLASSIC TUBE PREAMPLIFIER DI BOX Session Recall Sheet ...

Страница 21: ...am DI MIC INPUT 48V MIC DI LO Z HI Z GAIN 2 2MΩ 450Ω 1 6KΩ LEVEL LO CUT MIC LINE IN ø OUT ø OUTPUT GND LIFT THRU SIGNAL VU Driver SOLO 610 BLOCK DIAGRAM 1 2 3 2 1 3 Tube Preamp 12AX7 Tube Output Amp 12AT7 50KΩ Hi Lo ...

Страница 22: ...ement 1 12AX7 1 12AT7 Maximum Mic Input Level 12 dBu 1 0 THD N Ratio Maximum Instrument Input Level 4 dBu 1 0 THD N Ratio Maximum Gain Mic Input 55 dB 1 6K Ω input 60 dB 450 Ω input Maximum Gain Instrument Input 37 dB Mic Instrument In Frequency Response 20 Hz to 20 kHz 0 1 dB Power Consumption 16 Watts Fuse Requirements 100VAC T300mA 250V All are Slow Blow type 115VAC T250mA 250V 230VAC T125mA 25...

Страница 23: ...ty Information iii Index xxiii INPUT 8 Interconnection Diagrams 11 Introduction 5 LEVEL 7 Line Level 17 LO CUT 8 Low Cut 14 Low Cut Filter 17 LO Z 8 Maintenance 18 MIC INPUT 10 Mic Level 17 Mic Preamp 17 Negative Feedback 13 17 OUTPUT 10 Overview 13 phase 14 POLARITY 8 10 14 Power iii 8 10 14 Rear Panel 9 Recall Sheet 20 Registration 24 Resources 24 Ribbon Microphone 17 Service iii 24 SIGNAL 8 Spe...

Страница 24: ...port Even gear as well designed and tested as ours will sometimes fail In those rare instances our goal here at UA is to get you up and running again as soon as possible The first thing to do if you re having trouble with your device is to check for any loose or faulty external cables bad patchbay connections grounding trouble from a power strip and all inputs outputs mic line Hi Z etc If your pro...

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