4 Track Mixer Mx4v2s - Version 2

(See diagrams below)

Asymmetrical output level:

• No jumper: -2 dBm
• With jumper: -12 dBm

Return level:

Must be set depending on the recorder. Minimum level for a 0 dBm tape return.
Factory setting: -12 dBm.

Reference:

• No Jumper: Reference to the left track only
• With Jumper: Reference to both tracks

Reference level:

The reference level must be set at +4 dBm to the symmetrical outputs.
The distortion potentiometer must be kept in the middle.

Vu/Modulo Jumper selection:

• Jumpers on "Vu" : Vu-meters
• Jumpers on "Mod": Modulometers

Modulometers / Vu-meters settings:

• Vu-meters must indicate 0 dB with a sinusoidal/1 KHz/+4 dBm signal to the symmetrical outputs.
• Modulometers must indicate 0 dB with a sinusoidal/1 KHz/+12 dBm signal to the symmetrical outputs.

Input offset trim:

Preamplifiers must be set to the max sensitivity. No signal to the input. Set the trim potentiometer to have as few cc offset tension as possible to the output of the SSM2017 integrated amplifier (Pin #6).

Limiters:

Input trim at -20 dB. Input potentiometers to the maximum. Apply an 1KHz sinusoidal signal to the inputs in order to have +22 dBm to the symmetrical outputs (with no limiter). Switch the limiter on and set the trim potentiometer to lower the output signal to +20 dBm. Repeat for all tracks.