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MS300
QQ
3 7 63 1515 0
• Finished product inspection
1.
Preparation
1) input terminal: LINE INPUT (XLR)
2) LINE LEVEL: MAX(10)
3) MIC LEVEL: MIN(0)
4) MASTER LEVEL: MAX(10)
5) EQ HIGH: Center click position (0)
6) EQ LOW: MAX(0)
2.
Inspection
1) Input a 20Hz to 20kHz, 0.08Vrms(-19.72dBu) sine
wave signal to the input terminal LINE INPUT (XLR)
and check that none of the contact of the voice coil,
air leakage and abnormal noise such as vibration
noise occurs.
Next, input music signals to the input terminal LINE
INPUT (XLR), move each VR knob and check that
the sound volume and tone quality change smoothly
without producing noise.
2) Phase of speaker output
Check that the output at LF is in positive phase with
respect to the input signal and the output at HF is in
TE
negative phase with respect to the input signal.
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