In a 6.1-channel setup, a pair of surround speakers will be placed to the sides of your listening area, with
an additional rear center channel speaker behind you. If you choose to implement 7.1-channel surround
you will use a pair of surrounds to the sides, and another pair behind you, spaced evenly to fill the room.
Again, please experiment with your installer to determine which modes sound best for each pair before
he calibrates your room to determine the correction curves for each channel. If you change your mind
later, you will need to have the room recalibrated to accommodate the new speaker settings. Also, if you
change your room’s furnishings in any significant way (floor coverings, drapes, furniture) please have your
installer recalibrate the room to return your system to its original target response curves.
Your dARTS powered subwoofer(s) are specifically designed to blend well with the dARTS main speak-
ers, and to perform well with either music or movies, augmenting the deep bass which is such an inte-
gral part of our emotional involvement with our entertainment choices. Although very deep bass is es-
sentially non-directional, the higher bass frequencies and the initial attacks of each note are often shared
by the main speakers. Thus, subwoofers usually blend best when they are relatively close to the front
channels. The dARTS Custom Built-In line offers subs which are the same width as the main speakers,
so they can be readily used as speaker stands, ensuring proper integration and impact. If you do use the
system in this way, please have your installer mount the included connecting brackets to lock the subs
and main speakers together, with their fronts vertically aligned. The brackets allow for vertical adjustment
of the main speakers to accommo-date the use of isolation feet. The Audyssey Laboratories MultEQ XT
32 room calibration software WILL account for sub placement (as it does for all speakers) while measur-
ing your room and designing the correction curves, but the closer you can come to ideal placement, the
better will be the results.
System Wiring and Connection
Phase Technology’s dARTS systems are unique in that all speakers are either bi-amplified or tri-amplified.
This means that each tweeter, midrange, and woofer set is connected to their own individual amplifier
channel to allow for greater dynamic performance and flexibility in configuration. To take advantage of
these connections, front main and surround channels need to be wired with four-conductor speaker
wire. The horizontal center channel is tri-amplified, so it needs to have six conductors available. Phase
Technology recommends using 14 AWG speaker wire (no smaller than 16 gauge) for each of these con-
nections. Wire with higher gauge numbers is thinner, and is not recommended.
The dARTS subwoofer includes its own 500-watt on-board power amplifier. It will need to have a shield-
ed audio interconnect run to its “LINE INPUT L” jack from the DP4000 amplifier/controller’s “SUB OUT 8”
jack. The subwoofer’s amplifier features both line-level inputs and outputs To add additional subwoofers
to increase the bass performance in a large room, have your installer run an additional shielded audio
interconnect from the first sub’s “LINE OUTPUT L” jack to the second sub’s input “LINE INPUT L” jack,
continuing on to as many subs as desired. The sub amp’s volume control should be set at the“12:00”
position for the calibration process, but can then be raised or lowered a bit to match your own desired
bass levels in the room.
The heart of the dARTS system is the DP4000 digital amplifier/controller. It consists of a 16-channel
power amplifier (up to 250 w/ch), the setup firmware used by Phase Technology to individually match
your speakers to each other (frequency response, crossover, time alignment), and space for the room
correction program your installer will run to calibrate the system to your room. Each of your speakers will
connect to the DP4000 with either two or three pairs of speaker wire. Your surround processor or receiv-
er’s preamp outputs will also be connected to the DP4000. If desired, your installer can connect
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