GT650P, 800P Powered Sub OM 7/15/98 10:57 AM Page 6
Input ConnectionsEquivalently, if you are usingAdjustments3. Back off on the source unitOs
06Your GT Subwoofer may be the speaker-level connection, Volume Level and Crossovervolume control until just below
driven either with the preampyou can connect the PoweredFrequency (labeled �X-Over�)the point where you hear dis-
output or speaker level output Subwoofer in parallel with theadjustments are done by ear. Thetortion. Slowly increase the
of your source unit. The inputspeakers. The PoweredCrossover Frequency may bePowered Subwoofer volume
impedance of the GT ampliŢerSubwoofer will sample the adjusted over the range of 80Hzcontrol until you begin to hear
module is such that a Oy-connec-signal, but will not load theto 150Hz. Midpoint on the X-Overslight distortion from the sub-
tor� may be used to connect yoursource unit the way a secondscale is at 125Hz. The knob atwoofer. Mark or remember the
source unit simultaneously to thepair of conventional speakersO9:00� equals 100Hz, and atposition of the Powered
GT Subwoofer and an externalwould, so you do not need toO3:00� equals 175Hz. Subwoofer volume knob and do
power ampliŢer used to drive theworry that this connection will1. We recommend starting yournot exceed this point in subse-
main speakers when the preamplower the speaker impedance setup procedure with the quent adjustments.
level connection is used.too far for your ampliŢer orvolume control set at the 4. Adjust the volume control so
source unit.minimum, and the X-Over setthat the bass level is balanced
If you are using two GT Poweredat the most counterclockwiseto your taste from the listening
Subwoofers, only one input (80Hz) position. position.
channel needs to be used on 2. Increase the volume level of
each subwoofer. the source unit to the maxi-
Please refer to Figure 2 onmum listening position. This
page 5 for a wiring diagram.is the point where the main
speakers in the system begin
to sound slightly distorted. |
ACEC
