Diagram 5 – Typical Conguration – Stereo playback (Mono Sub). A preamplier or AV receiver Output is connected to the L and R Inputs of the
subwoofer. The subwoofer L and R Outputs are connected to the Input of the L and R main stereo amplier or active loudspeakers. In this
conguration the Gain switch is normally set to 0dB.
Diagram 6 – Typical Conguration – Stereo playback (Stereo Subs). A preamplier or AV receiver Output is connected to a single Input on each
subwoofer. The corresponding Output of each subwoofer is connected to the Input of the main power amplier/active loudspeaker on that channel.
In this conguration, the Gain switch is normally set to 0dB. Note that it is also possible to connect the preamplier/AV receiver Output to both
Left and Right channel Inputs on the subwoofer using a Y-Splitter cable. If connected in this way the “spare” Output can be used to connect further subwoofers.
DIAGRAM 6
It is likely that a subwoofer will be used in one of two dierent scenarios: either as Bass Reinforcement/Extension in a Stereo System or as a discrete
channel in a Multichannel Surround/Immersive Audio system.
Typically, a full-range stereo signal is driven into both Left and Right subwoofer Inputs. The subwoofer Outputs connect to and drive the main
loudspeakers. Alternatively, the
C4 Sub Mk2 and main loudspeakers can be driven independently from a suitable preamplier/AV receiver. Example
systems are shown in Diagrams 5, 6 and 7. All subwoofers can be controlled using the method described in section 5. All panel settings should be
set independently for each subwoofer.
All ATC loudspeakers deliver signicant low frequency output, more so with the larger monitors in the range, therefore there will always be some
degree of acoustic overlap between the subwoofer and stereo loudspeaker in this conguration. Applying an external high pass lter to the main
loudspeakers will introduce phase shift in the main loudspeakers and should be avoided where possible. Good results can be achieved through
experimentation with the subwoofer Level, Frequency and Phase adjustment.
A selection of common wiring congurations are shown but other congurations exist, please contact your reseller or ATC for advice.
Typical System Configurations and Recommendations
Bass Reinforcement/Bass Extension of a Stereo System
6 .1
6.2
SECTION SIX
DIAGRAM 5
SUBWOOFER CONNECTED IN SERIES
SUBWOOFER CONNECTED IN SERIES