I'm at the moment working on a 19" 2U external unit to add more functionality to my mixer. But i'm designing it so that it can be used with any mixer. Mixers with
Phono in only channels need Line Level cards on these to be used with the unit.
The goal is to have per channel EQ and external FX Send/Receive access on any of the mixer channels. Also to add more Phono inputs to mixers that needs it.
Inputs: 4 or 6 channels. Phono or Line.
EQ: 3 or 4-Band, -26dB - +6dB.
External FX unit inserts with DRY/WET function: 2
FX1 and FX2 also have an extra FX insert each to add even more functionality to them.
You connect the Turntables/CD-players etc. to it and then from it to the mixers line level inputs. For each FX section only one input channel can be used at the time.
This since it routes the input signal to the EQ and selected external FX-Units.
Why this design approach and not a traditional EQ per channel ?
- EQ/FXs are added to the signal path only when needed. This for optimized SNR and THD.
- Easy/cheap to extend with more functionality via FX1 and FX2 Insert loops.
- It can be used with mixers that doesn't have a FX-Loop.
- This is much cheaper to build and give the same functionality.
- Smaller enclosure can be used. A 3-Band EQ / 1 Ext. FX version could fit in a 1U enclosure.
When it's finished it will be released both as DIY and built unit.