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OWNER’S MANUAL

ELECTRO-OPTICAL VACUUM TUBE LIMITER / COMPRESSOR

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Summary of Contents for ELOP+

Page 1: ...OWNER S MANUAL ELECTRO OPTICAL VACUUM TUBE LIMITER COMPRESSOR R...

Page 2: ...tes uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee t...

Page 3: ...ranty by Manley Laboratories Inc for any purpose or give rise to any liability of Manley Laboratories Inc 2015 COPYRIGHT Manley Laboratories Inc All rights reserved This manual and any associated artw...

Page 4: ...t described in the operating instructions All other servicing should be referred to qualified service personnel This unit has high voltages present even after the power has been switched off 8 DO NOT...

Page 5: ...nd well with perceived loudness HP SC CONTROL The High Pass Side Chain filter is factory set to 80Hz When this switch is engaged and illuminated everything above 80Hz will drive the limiting or compre...

Page 6: ...channel is compressed individually It becomes noticeable when a loud element that is panned to either edge of the stereo field raises the level of the program to the compressor s threshold causing its...

Page 7: ...NPUT TRANSFORMER BALANCED CH1 LEFT PIN 1 GROUND PIN 2 PIN 3 XLR OUTPUT IMPEDANCE BALANCED CH2 RIGHT PIN 1 GROUND PIN 2 PIN 3 XLR INPUT TRANSFORMER BALANCED CH2 RIGHT PIN 1 GROUND PIN 2 PIN 3 IEC MAINS...

Page 8: ...gh headroom However there are many poor examples of tube circuits in the field and many ways to butcher the quality We chose to use our favorite simple tube line amplifier circuit which we also use in...

Page 9: ...meter where the ratio becomes low again but this would be a severe setting that few engineers could use Distortion becomes audible at very deep limiting In a tech shop it is easy to drive the limiter...

Page 10: ...ere sometimes Obviously we pull out this trick when two tracks are stepping on each other and EQ isn t making enough room for clarity Trick 4 Drive the compressor from an AUX send and return it to a c...

Page 11: ...t it is not touching any metal You may have cured a non loop hum Some gear radiates a magnetic field and some gear especially if it has transformers might receive that hum The unit would have to physi...

Page 12: ...are straight and align with the receptacles of the tube base before pressing down firmly to locate the tube correctly GROUND LIFT JUMPER If necessary the Circuit Ground can be disconnected from the Ch...

Page 13: ...the actual gain reduction accurately You will probably need to increase the oscillator 10 dB to get Limiting Adjust REDUCTION controls to reduce the signal to 4dB Switch METERS to REDUCTION Adjust 2...

Page 14: ...path Bypasses limiter this is not a hardwire bypass Unity Gain Set Input Attenuator 1 00 o clock Maximum Gain 13 dB Common Mode Rejection Ratio CMRR 77dB BW 22Hz 22Khz 4dBu 1Khz sine Limiter Ratio 10...

Page 15: ...13 11 Recall Sheet ARTIST SONG INSTRUMENT TRACK MIC NOTES DATE ENGINEER ARTIST SONG INSTRUMENT TRACK MIC NOTES DATE ENGINEER IN IN IN IN...

Page 16: ...Rev 1 5 ZF 2017 Designed Handcrafted in the USA Manley Laboratories Inc 13880 Magnolia Avenue Chino CA 91710 USA T 1 909 627 4256 www manley com Z Z...

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