SYSTEM 9098 Equaliser는 고성능 Equaliser로서 일반적으로 주파수 대역의 반응시간동안 signal을 진행시키고 고품질의 microphone signal들을 만들기 위해 디자인된 Preamplifier입니다.
구성 회로는 9098 console에 탑재되어있는 기본사양에 기초하며 접근방식은 9098에서 사용된 것과 많은 유사성을 가지고 있습니다.


Mic Amplifier
Frequency Response
200R Source - 10K Load
0dB gain <10Hz -3dB
20Hz -0.2dB
20kHz -0.1dB
>110kHz -3dB
66dB gain <10Hz -3dB
20Hz -1.2dB
20kHz -0.4dB
>110kHz -3dB
THD Noise
200R Source - 10K Load - measured @ 20dBu
0dB gain 20Hz <0.01%
20kHz <0.01%
66dB gain 20Hz <0.03%
20kHz <0.06%
Noise
200R Source - 22Hz to 22kHz (RMS)
EIN 66dB gain -128dBu
Output Noise 0dB gain -105dBu
Crosstalk - Mic Amp to EQ
20dB Input to Mic Amp, 0dB gain. Line Input selected with 200R source termination.
Measured at EQ output. All EQ bands and Filters bypassed, gain unity.
20Hz -112dB
1kHz -89dB
20kHz -65dB
Crosstalk - EQ to Mic Amp
20dB Input to Line Amp, 0dB gain. Mic Input selected with 200R source termination.
Measured at EQ output. All EQ bands and Filters bypassed, gain unity.
20Hz -119dB
1kHz -106dB
20kHz -82dB
Equaliser
Frequency Response
200R Source - 10K Load - Gain Unity
All EQ bands and Filters bypassed 20Hz to 20kHz ±0.2dB
All EQ bands In 20Hz to 20kHz -0.15dB to 0.6dB
All EQ bands and Filters In 20Hz to 20kHz -3dB to 0.6dB (20Hz Filter)
THD Noise
200R Source - 10K Load - measured @ 20dBu
All EQ and Filters Bypassed 20Hz <0.01%
20kHz <0.01%
All EQ and Filters In 20Hz <0.03%
20kHz <0.06%
Output Noise
200R Source - 22Hz to 22kHz (RMS)
All bypassed -104dBu
All in -90dBu
Maximum Levels
Input Level to Mic Amp 26dBu (at Unity Gain)
Output Levels 26dBu at 10K Load
25dBu at 600Ohm Load