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CONTENTS

INTRODUCTION....................................................................................................................................3

MAINS CONNECTIONS........................................................................................................................4

THE FRONT PANEL...............................................................................................................................5

SIGNAL FLOW....................................................................................................................................6-9

 

Input Selection......................................................................................................................6

 

Input/Output Level Trims.....................................................................................................6

 

Inserts 1-3 (SUM-DIFFERENCE processing).....................................................................7

 

Inserts 4, 5 (SWAP).......................................................................................... ...................8

 

Inserts 6-8.............................................................................................................................8

 

Mix/Fade Knob....................................................................................................................8

 

Output Level Switches.........................................................................................................9

THE BACK PANEL.........................................................................................................................10, 11

THE GUTZ.............................................................................................................................................12

SOME THOUGHTS FROM OUR LAB...........................................................................................13-16

LABELING YOUR SWITCHES............................................................................................................16

TROUBLESHOOTING..........................................................................................................................17

PATCHABLE SENDS/RETURNS.........................................................................................................18

ELCO PINOUT.......................................................................................................................................19

DB-25 PINOUT.......................................................................................................................................20

Y-CABLE DIAGRAM............................................................................................................................21

BLOCK DIAGRAM...............................................................................................................................22

PARALLEL PROCESSING DIAGRAMS.............................................................................................23

DC-COUPLING I/O MODIFICATION.................................................................................................24

SPECIFICATIONS.................................................................................................................................25

TEMPLATE FOR STORING SETTINGS.............................................................................................26

rev 4.19.11 CD

Summary of Contents for Backbone

Page 1: ......

Page 2: ...erts 6 8 8 Mix Fade Knob 8 Output Level Switches 9 THE BACK PANEL 10 11 THE GUTZ 12 SOME THOUGHTS FROM OUR LAB 13 16 LABELING YOUR SWITCHES 16 TROUBLESHOOTING 17 PATCHABLE SENDS RETURNS 18 ELCO PINOUT...

Page 3: ...ey like the famous guys use The Manley BACKBONE is one part of our solution In fact it represents an evolution in performance from where we left off in our custom designs The Manley BACKBONE is built...

Page 4: ...FORMER WIRED IN SERIES for 220 240V operation Uses a 0 5A SLO BLO fuse Fuses for ALL VOLTAGES are 5x20mm GDC packaged fuses Waste Electrical and Electronic Equipment WEEE Information for customers The...

Page 5: ...engaged For more info see pages 7 13 E Inserts 1 8 Push to activate the outboard processor that is patched into that insert point See page 7 8 for details F SUM DIF Press to engage SUM DIF circuit fo...

Page 6: ...ally worth a quick check to verify which way seems to sound best and or seems to have the kick pushing the woofer outward If in doubt leave the absolute polarity alone The Input Selection Left Right R...

Page 7: ...NOT pushed and lit the main audio path is hard wire bypassed of course However a little isolation ampli fier is engaged to feed that box This is to pre drive a compressor so that it is already doing...

Page 8: ...essor insert be used to sometimes push the level after keeping the signal at more reasonable and conventional levels earlier in the chain Between INSERT 7 and INSERT 8 is a multi purpose function Push...

Page 9: ...he FADER MIX and OUTPUT LEVEL controls precede INSERT 8 This way you can patch your final limiter in 8 and semi permanently set thresholds and gains and use the OUTPUT LEVEL controls as a very handy w...

Page 10: ...nnectors ELCO DB 25 connectors for the first 4 inserts H Selected Input L R The selected input s dry signal comes out here I Inputs 3 sets of inputs for whatever you want to plug into the BACKBONE We...

Page 11: ...e BACKBONE opening up the manual which is probably open already if you re reading this attempting to interpret the map on page 18 and moving some ribbon cables but dealing with ribbon cables seems to...

Page 12: ...cause of the precision calibrations especially in the SUM DIF circuits we advise that after a temporary swap the boards should go back to their original locations If one board or switch develops a pro...

Page 13: ...g trying it for the sake of an idea but suggesting a listening experiment because in the end it is more about the particular collection of gear that you have chosen and the collection of input output...

Page 14: ...ase line A typical high quality resistor may have a tolerance rating of 1 which means it is likely we only get 40 dB of separa tion in practice Even a superb resistor might be 0 1 tolerance which tran...

Page 15: ...lity is introducing a processor that might ordinarily be considered too colored or distorted for mastering but if mixed in lightly as opposed to running the full signal through it can be brought in un...

Page 16: ...ne has about 1 100th the level of a line level one and the BACKBONE has not been opti mized for such a signal it simply wouldn t function correctly for this application With that said once a signal ha...

Page 17: ...r or be otherwise altered Also try checking the signal from the output labeled SEL INPUT on the rear of the BACKBONE this output is hard wired directly from your selected source If this is muted as we...

Page 18: ...eaders INSERTS 1 8 Shown is Insert 6 using either both Patchable XLRs and ELCO EDAC Keep This End In Place Keep This End In Place RHT LFT Interior View of Back Panel ELCO EDAC Version HOW TO PATCH PAT...

Page 19: ...ELCO PINOUT This diagram is drawn from the perspective of OUTSIDE THE UNIT looking AT THE BACK PANEL 19...

Page 20: ...SEND 5 R SEND 6 R 24 12 25 10 23 11 21 9 22 7 20 8 18 6 19 4 17 5 15 3 16 1 14 2 13 HOT COLD GROUND HOT COLD GROUND HOT COLD GROUND HOT COLD GROUND HOT COLD GROUND HOT COLD GROUND HOT COLD GROUND HOT...

Page 21: ...Y CABLE DIAGRAM Note that the Y cable coming from the SUM output should be wired differently from the Y cable coming from the DIFF output 21...

Page 22: ......

Page 23: ...inal sound up in the mix already bring up the parallel mix You ll hear a weight and punchiness added to the sound but you still retain all the transient response and dynamic range of the original sign...

Page 24: ...board They are labeled J5 J9 and are for the left channel Jumpers for the right channel inputs live directly below these on the bottom board facing down and are labeled J16 J17 The jumpers are factory...

Page 25: ...150 ohms Input Or Output Stepped Gain accuracy 0 05dB Power Consumption 60 watts Mains Fuse 120VAC 1A 240VAC 5A Use 5mm x 20mm SLO BLO glass fuses 250V AC rating NOTE Operating mains voltage Units are...

Page 26: ...SETTINGS TEMPLATE Notes...

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