19
3 Phase Orientation: Once in the corner, we need to adjust for phase. This may be the single most critical
step, and because it really is quite simple, it is often over-thought. Keep in mind; the right phase is
whichever position is the loudest or fullest. While playing music with true low bass, adjust the crossover
to a point where the REL and the speaker are sure to share frequencies at 50Hz on the crossover control,
or slightly higher for smaller speakers. At this point turn the HI/LO LEVEL control up so that both the REL
and speaker are roughly equal in volume and then switch, using the phase switch, from “0” to “180”
phase positions. Again, whichever position is loudest or fullest is the correct position. That is, when the
position is working in harmony with your main speakers, reinforcing bass, not canceling it.
4 Corner Fine Tuning: (When Setting up for Stereo G1 Mk II it is Possible that Placement is Not Corner
Loaded and this Step May be Omitted). The next step is to determine precisely how far from the corner
the sub should be placed to achieve the most efficient output, as well as the lowest frequency extension.
With the REL fully into the corner, and pointing straight out along the diagonal coming out of the corner,
continuing to play the music, slowly pull the REL from the corner on the diagonal, equidistant from both
side and rear wall. At a certain point (sometimes a matter of only a few inches, in rare cases a foot or more)
the REL will audibly go lower, play louder, and, if it truly locks on to the room and is fully pressurizing it,
the air around the REL will seem to be energized, stop right there! This is the correct position from the
corner for the REL.
5 Orientation: Once the position from the corner has been established, the orientation of the woofer
must be determined by rotating the REL from an imagined centre point at the rear of the REL. As the REL
is moved from one side to the other listen for the greatest level of output and bass linearity. In effect, the
REL should be left in the position where it is playing the loudest and lowest.
Summary of Contents for G1 Mk II
Page 1: ......
Page 2: ...Operating Instructions for the G1 Mk II Sub Bass System...
