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Gemini

Mastering M/S Processor

Manual

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Summary of Contents for Gemini 1720

Page 1: ...Gemini Mastering M S Processor Manual...

Page 2: ...y 3 Technical Aspects 4 120 Volt Technology 4 120 Volt Technology Diagram 5 Installation 6 Voltage Selection 6 First Steps 6 Cabling Rear Side 7 XLR inputs and output 7 Ground Lift switch to avoid gro...

Page 3: ...13 4 Balance Trim 13 5 Balance 14 6 Trim 14 7 Insert SIDE 14 8 Solo SIDE 14 9 Filter Width 14 10 Stereo Width 15 11 Elliptical Filter 15 Specifications 16 Measurements 16 Security Advices 17 Notes on...

Page 4: ...Mastering M S Processor is available in different colors Black Model 1720 Red Model 1724 All Black Model 1723 Do consider keeping the original packaging It can come in very useful whenever you need to...

Page 5: ...to specifically get access to individual elements within a mix Gemini also provides the possibility to work on the stereo panorama With the Balance control you can position the mid signal within the...

Page 6: ...in the USA Simon Heyworth s Super Audio Mastering in the UK Galaxy Studios in Belgium and the legendary Wisseloord in the Netherlands for instance The 120 Volt technology is based on op amps develope...

Page 7: ...doubling the acoustic power 6 dB correspond to twice the sound pressure level and 10 dB correspond to twice the perceived loudness When it comes to volume the 120 volt technology exhibits a performan...

Page 8: ...re turning on the Gemini Mastering M S Processor you must first connect the included 3 pin power cord to the 3 pin IEC socket The transformer power cord and IEC socket all comply to the VDE UL and CSA...

Page 9: ...to the or hot Signal In case an unbalanced connection is necessary the correct polarity of the conductors needs to be observed Ground Lift switch to avoid ground loops On the rear panel of the Gemini...

Page 10: ...s Gemini provides two balanced inputs labeled as Inputs These are female XLR jacks Connect the stereo signal which is supposed to be processed with the Gemini to these inputs Connect the left channel...

Page 11: ...rns Connect the left channel to RETURN MID and the right channel to RETURN SIDE Send and Return together make up the insert of Gemini Mastering M S Processor With this insert external processors for f...

Page 12: ...n SUB MONO GND LIFT Mono AUDIO FEEDS TO FROM MC16 GND LIFT GND FUSES SUB MONO FUSES 115V T 2 A L 250V 230V T 1 A L 250V Mono Mono Mono Mono SUB SPEAKER D L R L R SPEAKERS C SPEAKERS C L R L R SOURCE 1...

Page 13: ...is way it is possible see image below to place the M S Encoder on the third position an equal izer on the fourth to use it for separate proces sing of the mid and side signal and then use the M S Deco...

Page 14: ...M S encoding and M S decoding does not take place Devices connected to the insert are fed with the regular L R stereo signal All further buttons and controls of Gemini have no effect on the audio sig...

Page 15: ...th 10 Stereo Width 11 Elliptical Filter 3 Solo MID If the SOLO button of the MID section is activated you can only hear the mid part of the M S signal If the SOLO button of the SIDE section is activat...

Page 16: ...ereo signal L R hence the out phase part of the stereo signal The insert is located before the ELLIPTICAL FILTER and the STEREO WIDTH control 8 Solo SIDE If the SOLO button of the SIDE section is acti...

Page 17: ...ception of the stereo width 11 Elliptical Filter The ELLIPTICAL FILTER Cauer Filter removes signal components below a predefined fre quency from the side signal You can then hear these signal componen...

Page 18: ...Balance Trim Filter Width active 98 2 dBu THD N at 20dBu 110 dBu Common Mode Rejection at 0dBu 79 dB Transmission Bandwidth 10 Hz 150 kHz Power Consumption 0 11 Amp 230V 50Hz 24 Watt 32 VA 0 22 Amp 11...

Page 19: ...of time Unplug the power chord from the mains to cut power supply to the unit Always make sure that the mains plug is easily accessible Opening the unit Simply put DON T if you are not a certified SPL...

Page 20: ...rts or those with identical specifications as the originals Incorrectly substituted parts can lead to fire electrical shock or other dangers including further equipment damage Safety inspection Be sur...

Page 21: ...be copied or reproduced in any man ner in part or fully without prior authorization by SPL Sound Performance Lab SPL continuously strives to improve its products and reserves the right to modify the p...

Page 22: ...Active Solo mastering m s processor Gemini T R I M S T E R E O W I D T H dB Hz dB Insert Insert 120 V DC Audio Rail MID M S SIDE Model 1720 2 5 2 0 1 5 1 0 0 5 0 0 5 1 0 1 5 2 0 2 5 3 5 3 0 2 4 1 5 0...

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