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SUMBOX 1602MS

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Analog Summing for your DAWDesign features

Analog Summing for your DAW

The SUMBOX 1602MS is not a transparent unit, it adds saturation to your mix.  Its effect can be subtle, but when driven adds depth, and dimension to your recordings.  It was born from the concept of creating an active summing amplifier that could easily work on every session with minimal effort required at recall.  

Few Controls by Design

The only controls on the unit are the Mono/Stereo selection switches.  The first 8 inputs (4 pairs) are Mono/Stereo assignable via the push button switches.  The remaining 8 are assigned to 4 Stereo Pairs.  This aids in recall as all volume and mix decisions are made in the DAW.  This allows all gain staging and panning to be done at the DAW, gaining all the benefits of an analog mixing desk with none of the hassle of recall.

16 Balanced Inputs

The SUMBOX 1602MS features 16 balanced analog Inputs on 2 DB-25 connectors.  

2 Pairs of Outputs

The output is split into 2 pairs; creating the ability to apply parallel processing to the mixed signal, or having a dedicated monitoring path.   


Design features

High Quality Components

  • 0.1% metal film resistors for critical summing signal path
  • 16 balanced line inputs on 2 DB25 connectors using high CMRR TI line receivers
  • Custom USA made Nickel/Steel output transformers
  • 9.18 op-amps running at +/-18VDC to increase headroom
  • Relay controlled Mono/Stereo switches to shorten signal path
  • Ground lift to eliminate ground issues before the SUMBOX
  • Laser ablated Powder Coated Aluminum faceplate ensures permanent markings that will not rub off with use
  • 110V/220V operation on an IEC connector

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