User manual

12
Signal Mode Configuration
The IP™-Six amplifier is configured for Two-Channel (Stereo), Bridged Mode or Parallel Mode
operation at the input connector.
To send the same signal to both channels (Parallel Mode), connect the input signal to channel A
via the input connector. Run jumpers from the positive and negative terminals of channel A’s input
connector to the respective terminals of channel B. Both channels then share channel A’s input signal,
but will operate independently. Speakers are connected as in two-channel (stereo) mode.
Bridged Mode converts the amplifier into a single-channel unit with a power rating equal to the sum of
both channel’s power ratings, and at a load rating of twice that of the single-channel rating. In Bridged
Mode, the channels operate at opposite polarity of each other so that one channel “pushes” and
the other “pulls” equally. Signal is connected to the input connector with one jumper connecting the
positive (+) terminal of input A to the negative (-) terminal of input B, and another jumper connecting
the negative (-) terminal of input A to the positive (+) terminal of input B. Both channel attenuators (A
and B) are used to control signal level and both must at the same level, preferably at 0 dB attenuation.
The speakers are connected only to the designated “+” output terminals. Never ground either side of
the speaker cable when the amplifier is in Bridged Mode, as both sides are “hot.” If an output patch
panel is used, all connections must be isolated from each other and from the panel. For the IP-Six
amplifier, the minimum nominal load impedance in Bridged Mode is 4 ohms; this is the equivalent
of driving both channels at 2 ohms. Driving loads of less than 4 ohms may activate the Load Fault
Correction circuit and may also cause a thermal protect condition.
NOTE:
Regardless of operating mode, NEVER connect amplifier outputs together!
Operation