Quested S8 User Manual - page 11
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section 1.1 Class A-B amplifiers) the LED will be continuously green when the amplifier has
warmed up and is ready for normal operation. The LED will flicker red with music peaks to indicate that the
amplifier is 2db under clip. The clip indication should be used as a guide that the amplifier is approaching
clip, which should be avoided for audible integrity. If the amplifier detects a fault or over heats
the LED will be continuously red. If the amplifier has over heated and the LED has turned red
refer to section 5.2 Thermal.
5.4
Signal Level
Input sensitivity can be adjusted with the ten position rotary switch recessed in the rear panel
by using a flat bladed screwdriver. The control has an 18dB range in 2dB steps and accurately
sets the SPL level for a known input signal level. With the switch set at the 0dB position, 0dBu
of pink noise will produce 96dB SPL at 1 meter.
5.5
Contour Sel ectors
There are two switch groups that control the HF and LF contour settings. These can be used to
adjust for room conditions or personal preference. The nominal flat position is indicated with a
flat line. The speaker will only operate correctly if the switches are in one of the
positions shown on the rear panel.
6
TECHNICAL SPECIFICATION
S8
Dimensions:
300(w) x 428(h) x 334(d) mm
Weight:
17.6 kgs
Drivers:
Bass cone - 1 x 200 mm (8 ”)
High Frequency soft dome - 1 x 28 mm (1 ⅛”)
Maximum SPL:
110 dB (c) continuous pink noise @ 1 m (122 dB (c) per pair RMS
music)
Frequency Response: 50 Hz-20 kHz ± 2 dB
Connector:
XLR and ¼ inch Jack combo socket
Impedance:
10k
Ω
electronically balanced with RF filters
Wiring:
Pin 1 ground Sleeve
Pin 2 hot
Tip
Pin 3 cold
Ring
Sensitivity:
-12 dBu to +6 dBu for 96 dB SPL @ 1 m set by 10 position rotary switch on
rear
Subsonic:
-3dB @ 20 Hz, 24dB/oct
Ultrasonic:
-3dB @ 75kHz, 4dB/oct
Crossover:
1k40
LF EQ:
-2/-4 @ 42 Hz