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A Series Active Monitor Speakers

E4/4 Service Date printed: 29.02.00

4.3.1.5 A1: Input Gain Check and EQ Preadjustments

These preadjustments must be performed only if RT1 and RT2 are com-

pletely out of range; these settings will be fine-adjusted on the assembled

unit, also refer to section 4.3.2.5.

Steps Generator Measurement

No. Description Id Value Test pos. Type Value Limits

1 Input gain check G1 –33 dBV/200 Hz/sine wave M1 Level –20.0 dBV ±0.3 dB

2 RT1 adjust G1 –33 dBV/12.2 kHz/sine wave M1 Level –18.2 dBV ±0.5 dB

3 RT2 adjust G1 –33 dBV/21 kHz/sine wave M1 Level –17.0 dBV ±0.5 dB

4 Repeat steps 2 and 3 until all values are within the given limits

Level

[Hz]

–

40 40 k50 100 200 500 1 k 2 k 5 k 10 k 20 k

[dBr @ –20 dBV]

–

900

+180

–

810

–

720

–

630

–

540

–

450

–3

–

270

–180

–90

+90

40 40 k50 100 200 500 1 k 2 k 5 k 10 k 20 k

[Hz]

[°]

Phase

Studer A1 User Manual

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