Classic Recording Studio Equipment

Vintage Digital

Manley Mastering Backbone

Manley Backbone Mastering Insert Switcher

A mastering engineer's dream to the world, the Manley Backbone mastering insert switcher. This unit is the centerpiece of a mastering system allowing precise control and manipulation of up to eight pieces of outboard gear.

Manley Backbone Mastering Insert Switcher Details

A little history: Manley have been building custom mastering consoles for many years, since the early 1990’s. But as we know, custom design work is both expensive and time consuming so we drew upon our experience to create a new stock production Mastering Insert Processor, the Manley Backbone.

The Manley Backbone accepts up to three balanced SOURCE INPUTS, selectable on the left side. LEFT & RIGHT can be reversed and ABSOLUTE POLARITY can be flipped. The 24 position INPUT & OUTPUT GAINS can be switched active or left passive. Up to EIGHT INSERTS can be switched in or bypassed. A SUM – DIFFERENCE MS MATRIX can be addressed between inserts 2 and 3. The order of inserts 4 & 5 can be SWAPPED.

There is an injection point between inputs 7 & 8 to allow for several functions on the 3-Function MIX – FADE output control. You can mix in the DIFFERENCE signal from the input. This mixes in some out of phase signal from the input to the output in order to widen the image if desired.

OR you can mix in a parallel signal in between inserts 7 & 8. A lot of folks run a reverb or parallel compressor in this fashion. OR you can use the knob as a FADER to make smooth and accurate level fades with the Penny & Giles rotary fader.

The Manley Backbone is available with ELCO or DB25 connectors for the INSERTS I/O. Cables for either system are not included and must be custom made or ordered.

Features

  • 3 x Balanced Stereo Inputs
  • 8 x Balaced Stereo Inserts
  • Selected Input can be mixed to parallel outputs
  • Patchable SEND and RETURN
  • Balanced signal path all the way
  • Left – Right Reverse Switch
  • Absolute Polarity Reverse Switch
  • Bypass GAINS makes passive signal path
  • Over 90 nice relays employed
  • EAO switch buttons can be easily custom labeled
  • INPUT and OUTPUT GAINS use 4 x 24 position Grayhill switch attenuators
  • SUM – DIFFERENCE (MS Matrix) can be used for Inserts 2 & 3
  • Separate SUM and DIFFERENCE outputs available on rear panel
  • SWAP order button can be used to reverse the order for Inserts 4 & 5
  • MIX – FADE injection between 7 & 8 with mode select
  • Expensive Penny & Giles rotary fader/mixer
  • I/O Inserts connection system can be ordered with ELCO or DB25 (you choose)
  • Bulletproof MANLEY build quality. But of course!

Specifications

Released

  • Frequency Response ± 0.1 dB, 10Hz-100KHz
  • THD + Noise @ +4 dBu input level 0.0015% A-WGT
  • THD + Noise @ +22 dBu input level 0.0011% A-WGT
  • IMD60 4:1@ +4 dBu input level 0.0017%
  • IMD60 4:1@+22 dBu input level 0.0035%
  • Crosstalk Rejection ≥ 95dB @ 1 kHz between Gains and Mix-Fade Stages
  • Crosstalk Rejection ≥ 70db @ 1kHz at SUM-DIF stage
  • Common Mode Rejection ≥ 100dB @ 100Hz; ≥ 95dB @ 1KHz; ≥ 80dB @ 10KHz
  • Noise floor -95 dBu, Bandwidth 22Hz-22KHz A-WGT
  • Maximum Signal Level +29dBu
  • Dynamic Range 124dB
  • Input Impedance 30K Ohms
  • Output Impedance 150 Ohms
  • Input/Output Stepped Gain Switches accuracy ±0.05dB
  • Power Consumption 60 watts
  • Dimensions: 19″ x 10″ x 3.5″ (occupies 2u)
  • Weight 13 lbs.

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The details provided above are drawn from historical documents like advertising brochures or user manuals. They’re shared without bias or review. This info is given solely for your consideration, helping you gauge its usefulness to you.

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