Technical Specification - Quested SB10 User Manual

You now need to obtain maximum output of the speaker combination at the crossover
point
by means of the phase potentiometer and polarity switch. It is usually easier to adjust for
maximum cancellation (lowest output) and then reverse the polarity switch to obtain
maximum output. If there is a bump or lift in the response at the crossover point, roll off the
bass response of the full range cabinet by using the LF Compensation switches on the left
and right monitors. Send pink noise to both the left and right inputs. Slowly turn the phase
pot looking for maximum cancellation. Now reverse the polarity and turn the phase pot
again
looking for maximum cancellation. You should be able to see there is a lot more cancellation
with the polarity set to either + or – whilst adjusting the phase pot. Reset it to wherever the
greatest cancellation was. Now reverse the polarity, this will give you maximum output.
Display showing maximum
Obtainable cancellation.
Your system is now configured and ready for use. There should be no need to adjust the phase
or polarity any more. You can, and may want to turn the sub up or down a little after using
the system.
Systems with two SB10s: Connect the out puts of the SB1 to each of the subwoofers,
connect each subwoofer to its corresponding full range cabinet. Proceed with the Accurate
system alignment
It is now necessary to confirm that the subwoofers are completely in phase with each other.
One subwoofer needs to be aligned to the other. If when aligning the subwoofers to the full
range cabinets either the left or right was easier to interpret, choose this as the master, if not
take your choice.
Disconnect the full range cabinets, send the pink noise to both sub woofers. Reverse
the
polarity on the SB10 controller that is not the master. Adjust the phase on this controller
to obtain the lowest output of the combined sub woofers. Switch the polarity on the same
controller back to its original position, the phase of the two sub woofers is accurately
adjusted.
7 SB 10 Technical Specificatio n
Size
Weight
Driver
Frequency Response
INPUT
Connector:
Impedance:
Wiring:
Gain:
OUTPUTS
Left and right monitor
outputs
Impedance
Sub Bass output
Display showing finished
Result (polarity reversed from
Maximum cancellation)
.
(w x h x d) 617 x 333 x 290 (SB Controller - 1U case 270mm deep)
19.8 kg (SB Controller – 5.5 kg)
Bass cone 1 x 250mm (10")
User Adjustable
2 off XLR and ¼ inch jack combo socket
10k electronically balanced
Pin 1 (Sleeve) ground, Pin 2 (Tip) hot, Pin 3 (Ring) cold
-14 dBu to +6 dBu
2 off XLR3 type male left & right
<100 ohm electronically balanced
Wiring Pin 1 ground, Pin 2 hot, Pin 3 cold
1 pair binding posts
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