FOHHN IGS-4 (01) PDF Document

One-channel wiring is necessary for amplifiers with an output power greater than 200 W @ 4 ohm. Follow these steps:

1. Wire pin + of an amplifier output to IN1+.

2. Wire pin – of the same amplifier output to IN1-.

3. Insert a wire link from IN1- to IN2+.

4. Load a dedicated speaker preset to the output channel using Fohhn Audio Soft.

Two-channel wiring is recommended for Fohhn amplifiers with an output power less than 200 W @ 4 ohm, such as the MA-4.100. Follow these steps:

1. Wire one amplifier output to IN1.

2. Wire a second amplifier output to IN2.

3. Load a dedicated speaker preset to both output channels using Fohhn Audio Soft.

Please observe the following cautions:

• Make sure all wiring is carried out by a qualified person to prevent the amplifier and loudspeaker from damage.

• To obtain the best performance of the loudspeaker and prevent it from damage, the correct speaker preset must be loaded.

Before mounting, ensure that:

– The wall/ceiling will carry the total weight of the IGS-4.

– All dowels used suit the wall/ceiling type.

– All screws and nuts are tightened correctly.

In case of a dropped ceiling installation, also ensure that the IGS-4 does not have any contact with parts of the dropped ceiling frame or tiles.

1. **Drill holes:** Drill two holes at a distance of 345 mm into the wall. Use a spirit level to align them horizontally.

2. **Set dowels and screws:** Insert two dowels that suit your wall type. Screw in the hex-head bolts (screw diameter: 6.5 mm) that come with the set, leaving them up to 20 mm out from the wall.

3. **Install speaker:** Place the FOHHN IGS-4 onto the screws using its keyholes.

4. **Final adjustment:** Align the FOHHN IGS-4 horizontally, then tighten both hex-head screws with a wrench.

For ceiling mounting, the CSK-1 kit is required. Follow these steps:

1. **Prepare the IGS-4:** Insert the hex-head screws of the V-ropes from the ceiling mount kit through the keyholes of the IGS-4. Tighten all 4 nuts while holding the respective screw head.

2. **Drill holes:** Drill two holes at a distance of 370 mm into the ceiling.

3. **Set dowels and ceiling plates:** Insert two dowels that suit the ceiling type. Tighten the ceiling plates with the screws (screw diameter max. 4 mm).

4. **Mount suspension ropes:** Screw both suspension ropes with their endcaps onto the ceiling plates.

5. **Join suspension ropes:** Insert each end of the suspension ropes into the jointer of the slider of the V-ropes below, respectively.

6. **Adjust height:** Adjust the assembly to the required height and level it horizontally. To lower the assembly, press the release ring of the slider. Cut off or interloop the excess cable ends.