Me pierdo en la configuración del SW en estereo

Hola a todos. Hace unos días recibí el cable con conexión Neutrik para incorporar el subwoofer Rel Quake al estereo. El caso es que, siguiendo las instrucciones del manual, cuyo link adjunto, dudo en alguno pasos que indica.


http://www.sumikoaudio.net/ContentsFiles%5CQ-Series-Manual(0).pdf


Así en el primero de ellos, dice:

While playing music with true low bass, adjust the crossover to a point
where the sub and the speaker are sure to share frequencies (B, 3 for big speakers or C, 4
for smaller speakers). At this point turn the gain so that both sub and speaker are roughly
equal and then switch, using the “mode selector” switch, from “0” (position 1) to “180”
(position 3) phase positions. Again, whichever position is loudest or fullest is the correct
position, and, as often as not, may be 180-degree phase. That is, this position is working in
harmony with your main speakers, reinforcing bass, and not cancelling it.

Alcanzo que lo que viene a señalar como primer paso para configurar la fase es ajustar la frecuencia de corte a lo que alcance el mínimo de la caja, pero no llego a comprender cuáles son las referencias que se hacen al indicar: "B, 3 for big speaker".  A partir de aquí entiendo que habría que ajustar la ganancia hasta alcanzar un nivel parecido entre cajas y sub para después ajustar la fase finalmente atendiendo a las posiciones 1 y 3 del selector.

Pero lo que ya no entiendo nada en el último paso son las referencias a A-1, B-1, A-D...:

Crossover and Gain Settings: To determine the crossover point, bring the gain down, put the
crossover to A-1, bring the gain back up to the point where you have achieved a subtle
balance (In some situations where there may not be sufficient output due to room and
subwoofer interactions B-1 should be the position to use in setting initial gain). Working only
with the coarse control (A-D), bring the crossover point up until it is obviously too high, at this
point bring it down to the next lowest setting. Now, working with the fine control (1-6), bring
up the crossover point until it sounds too high at which point bring it back down to the next
lowest setting. For all intents and purposes, this is the correct crossover point. Once this
stage has been reached subtle changes to gain and crossover can be accomplished to
provide the last bit of complete and seamless integration. With that, set-up is complete.

En fín... alguien puedo echarme una mano?

Editado

Ese parrafo que indicas, se refiere a otro modelo ( serie ST)
Para el Quake te interesa lo que dice despues:
For Q series, use the variable controls in much the same way, slowly turning up both gain and crossover until excess output is realised, then back down a soft-click or two.