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The pro channel block is a complex mixing console channel strip, with a transparent sound and the following features and modules:

XLR/6,5” jack combo for balanced input
Balanced input preamplifier stage
-20 dB pad
Phase inverter
48 V phantom power
Trim/gain input amplifier
Extra blocks insert connector
Insert jack (tip=send, ring=return) with bypass switch
Channel mute
Panning
2x pre/post fader effect sends
Signal and clipping LEDs
Solo
Master bus and submix bus routing.

4-band Parametric equaliser

High band: switchable shelf/bell filter at 12 kHz
High mid band: bell filter with variable frequency between 500 Hz and 8 kHz and variable Q between 0.5 (2.5 octaves) to 2.7 (0.5 octave)
Low mid band: bell filter with variable frequency between 75 Hz and 1.3 kHz and variable Q between 0.5 (2.5 octaves) to 2.7 (0.5 octave)
Low band: switchable shelf/bell filter at 125 Hz.

100mm fader

The long fader allows accurate control over the channel’s level as well as a good build quality and smooth operation.

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Advanced options

This channel type also includes some very handy options:
> The insert effect can be bypassed through a switch to compare the dry/wet signals
> The equaliser can be bypassed for easy A/B-ing
> Each of the effect sends included have a pre/post switch to allow routing of the pre-fader or the post-fader signal to the respective effect send.

Modular inside

Just like for the simple channel, inside this channel there are two boards: one with the input and preamp circuitry and another with the rest of the circuits, including the EQ, thus allowing for any combination of preamp and EQ to be installed inside each channel.

Connection

The pro channel block can be connected with any other type of channel block as well as other pro channel blocks or a docking station. They can be connected in any order, except for the docking block, which is always connected at the rightmost of a Mixerblocks console.
The connections are made through connectors on the sides of the channel blocks (more details here)

Enclosures

Two types of enclosures can be chosen for Mixerblocks: an MDF version and a sheet metal one. The MDF gives the console a very unique and inspiring look.
The sheet metal enclosure(coming soon) looks quite traditional but it makes a Mixerblocks console more durable and road-ready as well as giving it a better electromagnetic shielding than the MDF version.

The blocks connect through the electrical connectors but the cases are also securely fastened into place. For the MDF case, the blocks are connected like puzzle pieces with laser cut MDF crosses, which complete the design. For the sheet metal cases, the blocks connect through “ears” that screw each channel to the previously connected channel and/or dock.

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TECHNICAL SPECIFICATIONS & SIGNAL PATH

Current draw: max 120 mA
Input impedance:
- 11 kΩ unbalanced
- 22 kΩ balanced
SNR: -93 dB
Cross-talk (@ 1 kHz):
- Channel mute: -70 dB
- Channel down: – 70 dB
Pad: 0 dB/-20 dB
Input amp gain: -60 dB … 40 dB
Fx send gains: -65 dB … 0 dB

Dimensions (WxHxD): 53 mm x 63 mm x 400 mm
Weight: 450 g

EQ:
- High band: +/-16 dB@12 kHz, shelf/bell
- Mid high band: +/-16 dB for frequencies between 500 Hz and 8 kHz, Q between 0.5 (2.5 octaves) and 2.7 (half octave)
- Mid low band: +/-16 dB for frequencies between 75 Hz and 1.3 kHz, Q between 0.5 (2.5 octaves) and 2.7 (half octave)
- Low band: +/-16 dB@125 Hz, shelf/bell
Fader amp gain: -60 dB … +10 dB
Frequency response:
- Input to main: 20-20 kHz, +0/-0.5 dB
- Input to submix: 20-20 kHz, +0/-0.5 dB
- Input to effect sends: 20-20 kHz, +0/-0.5 dB

EXTRA BLOCKS

This block (as well as any other channel block) has a connector on the rear side through which any number of “extra” blocks can be installed to add features to the channel: extra effect send/returns, extra submix buses, vuMeters, recorder/loopers, etc.

Some of the extra blocks connect between them forming rows in order to mix their signals (like for effect sends). These blocks also connect to their respective docking block to send the mixed signal to the master mix.