Formula Sound NN106 User Manual - Page 6

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Channels 1 & 2 have a balanced stereo line input is on a pair of ¼" 3 pole jack

sockets for input switch position 3.

Channels 3 – 6 have a phono input on RCA phono connectors on input switch

position 3, this phono input has an input capacitance selection switch (4 positions)

and a gain trim accessible through the back panel.

Input 4 is one of the tow USB stereo inputs, the two stereo USB inputs are on a single

USB connector located on the back panel output section, the two stereo USB inputs

are routed to all channels and a recessed switch adjacent to the channel fader allows

USB1 or USB2 (USB stereo channel 1 or USB stereo channel 2) to be selected. Note

there are only two stereo USB channels for the whole mixer, and each channel is may

be set for either of these two.

Each channel has an FX loop switch that sends the signal to the FX LOOP stage in the

output section, and then onto the FX loop jack sockets, if nothing is connected to the jack

sockets the signal is automatically returned to the channel via the FX LOOP stage wet/dry

control. If more than one channel has the FX loop selected then the facility is disabled, this

is because if multiple FX switches are enabled there would be multiple sends and multiple

returns without a disable mechanism so we have included circuitry to sense when more

than one FX switch is selected.

This allows any channel to access a single FX unit connected to the FX jack sockets

by selecting that channels FX switch, only one channel at a time may access the FX

loop and if more than one channel FX switch is selected then the facility is disabled.

An AUX switch sends a copy of the signal at the top of the channel fader to the AUX

output, if several AUX are selected the AUX signals are summed. There is an AUX

output level control in the output section.

The XFA and XFB switches assign the channel signal to a side of the cross fader

(XFA is left and XFB is right), when a channel has microphone selected and the

microphone is assigned to the MIC buss then no mic signal is assigned for that

channel to the cross fader (the MIC buss goes direct to the output).

The CUE switch sends a copy of the signal at the top of the fader to the headphones

in the output section and the CUE meter in the output section indicates the level

providing only one CUE switch is selected (if more then one CUE switch is selected

then the signals are summed and the summed signal level is indicated).

USB input

The USB input is type B connector. The USB input module is an Amanero

Combo384 Module (See

www.amanero.com

website for full specification) operating

up to 192Khz.