Parasound
®
ZoneMaster
™
2350 Owner’s Manual
Page 13
Output Mode Switch
There are three positions for this switch which enable the 2350 to operate in three different modes. See
pages 14-16 for example diagrams of each Mode.
Stereo:
The Stereo setting routes the Left channel Input signal to the Left channel Speaker A and B
terminals and the Right channel Input signal to the Right channel Speaker A and B terminals. The
Stereo option is used for a standard stereo system with a left and right speaker.
Mono:
The Mono setting combines the Left and Right Inputs into a summed L + R mono signal and
routes it to both the Left and Right channels for both the A and B speaker output terminals. In the
Mono Mode the 2350 can easily drive 4 or even 8 speakers at the same time. You can connect one
pair to the A Speakers Terminals and other pair to the B Speaker Terminals. All speakers will play the
same Mono signal.
The Mono Mode is especially useful for very large rooms and particularly outdoor speakers where
mono operation will produce a more uniform sound than stereo. Other applications might be for
bathrooms and hallways where there is only space or need for a single speaker and it is more
practical to run a single speaker wire pair.
Note: The Mono mode is not for bridging. The 2350 channels cannot be bridged.
Sub (80
Hz Low Pass):
The Sub setting is only used when the Model 2350 will be powering one or
more passive subwoofer(s). This mode combines the Left and Right Inputs into a summed L + R
mono signal. This mono signal is then routed through an 80
Hz low pass filter (crossover) with a
slope of 24
dB/oct. This allows multiple passive subwoofers to be powered by the Model 2350
without the need for additional external crossovers. The Model 2350 is capable of driving up to four
8
Ω passive subwoofers at the same time. The Model 2350 does not support stereo subs and all
subs will play the same mono signal with an 80
Hz low pass filter.
Note:
The High Pass Filter switch must be set to Off for the Sub Mode to function. The 2350
cannot power both full range speakers and a passive subwoofer at the same time. This
requires two 2350s.
Minimum Impedance When Driving Subwoofers:
Although the Model 2350 is 2 ohm stable in all three modes (Stereo, Mono and Sub), it is not recommended
to go below 4 ohms per channel when powering subwoofers. This means two 4 ohm subwoofers can be
driven (one sub on channel 1 and a second sub on channel 2). This is because subwoofers require much
more power than a typical full range speaker. See the chart on page 16 to determine how many
subwoofers you can drive and how much power each will be receiving.
