Harman MFXI, MPMI manual Stereo Inputs Stereo 1/2, Mix Outputs, Aux and FX Bus Outputs, Headphones

A ‘Y’ lead may be required to connect to equipment with separate send and return jacks as shown below:

Stereo Inputs STEREO 1/2

These accept 3-pole 6.35mm (1/4”) jacks, or 2-pole mono jacks which will automatically ground the ‘cold’ input. Use these inputs for sources such as keyboards, drum machines, synths, tape machines or as returns from process- ing units. The input is BALANCED for low noise and immunity from interfer- ence, but you can use UNBALANCED sources by wiring up the jacks as shown, although you should then keep cable lengths as short as possible to minimise interference pick-up on the cable. Note that the ring must be grounded if the source is unbalanced.

Mono sources can be fed to both paths by plugging into the Left jack only.

Mix Outputs

The MIX outputs are on XLR’s, wired as shown, and incorporate impedance balancing, allowing long cable runs to balanced amplifiers and other equipment.

From		Balanced Connection
Impedance-Balanced	Signal +
Output			To External Device

Screen Signal -

Unbalanced Connection

From	Signal +
Impedance-Balanced		To External Device
Output

Screen Signal -

Experience has shown that sometimes it is better not to connect screen at external device end.

Aux and FX Bus Outputs

The Aux and FX Bus outputs are on 3-pole 6.35mm (1/4”) jack sockets, wired as shown on the left, and are impedance-balanced, allowing long cable runs to balanced amplifiers and other equipment.

Headphones

The PHONES output is a 3-pole 6.35mm (1/4”) jack, wired as a stereo output as shown, ideally for headphones of 32Ω or greater.

8Ω headphones are not recommended.

Soundcraft MFXi MPMi User Guide Issue 1210 17