6.1.1. CORRECT USE OF SPEAKERS GUARANTEES THEIR LONG LIFE!

6.1.2. NO.

6.1.3. It is very simple. Connect the signal cable to the bass extension (PUB 380 or BASS 200), then connect outputs from the bass extension to either the PUB 280 or SIDE input. Turn on the power and that’s it.

6.1.4. Yes, every SCHERTLER bass extension has one parallel-full range output.

6.1.5. First, try switching the Ground lift switch. If this does not resolve the problem, check your current source. If the venue has a poor electrical ground the problem will persist. You can solve the problem (current noise) with a Line Conditioner.

6.1.6. In the case of amplified speakers, the arrival of a distorted signal (square wave) may damage the internal amplifier beyond repair, which may in turn damage the loudspeakers.