BSS Opal Series FCS966.듀얼 30밴드 그래픽 EQ.
FCS-966은 페이더 외에 저역과 고역 필터를 따로 가지고 있어서 룸이나 스피커의 정교한 응답을 구성하는 페이
더의 세팅을 방해하지 않으면서 전체적인 사운드의 밸런스 조절을 가능하게 합니다.
각 페이더는 +/-15 dB의 게인을 가지고 있고 페이더의 길이는 45mm로 정확한 컨트롤을 가능하게 합니다.
역시 따로이 제공되는 주파수 가변이 가능한 하이 패스 필터는 저역 성분을 제거하는 용도로 사용되어 앰프와 스
피커의 성능을 최적화 할 수 있습니다.
8 세그먼트의 LED 미터는 출력레벨을 표시하여 EQ 조작 시에 클리핑이 일어나는 것을 알려줍니다.
페이더가 중간에 위치되어 있을 때는 그 페이더에 해당하는 주파수의 필터는 자동으로 바이패스되어 최적의 신호
패스를 구현하게 됩니다.
모든 입출력은 전기적으로 밸런스 되어 있으며 트랜스포머 밸런싱은 옵션으로 제공됩니다.
Graphic equalisers are found in just about every sound application from room contouring to feedback
control and general audio sweetening.
Traditionally much general eq"ing takes place on the faders alone but this restricts the use of the
faders at each end of the scale for further precision eq work. So we provided the Opal FCS-966 with
separate LF and HF contour filters which can change an overall sound balance without disturbing a
detailed room or loudspeaker response.
These filters are very musical gentle boost and cut shelving filters which can be used to add (or
remove) room effects that change with temperature audience numbers or humidity.
All these effects can be easily made without disturbing the critical fader settings already made.
Constant Q Filters
The modern generation of graphic eq"s
uses the Constant Q topology pioneered by BSS Audio which means that the filter width is constant
whatever the fader gain setting.
Compared to the earlier "gyrator" style of filters Constant Q filters provide a smoother and more
predictable interaction between adjacent faders and the resulting eq curve more closely resembles the
actual fader positions.
More Gain Control Per Filter
Each eq fader has +/-15dB of adjustable gain more than many competitive graphic eq"s. The faders
are long-throw 45mm types for precision control.
High Pass Filter
Also provided on the FCS-966 is a sweepable high-pass filter which can be used very effectively to
restrict the low-energy output for better amplifier and loudspeaker performance. Stage monitors also
benefit from the application of a high-pass filter to remove bass signals e.g. from vocal-only wedges.
BSS Audio believes in providing engineers with information and the FCS-966"s 8-segment led meter
shows output level and warns of signal clipping within the eq. When the unit is switched to bypass the
meter will read the input level allowing accurate matching of the "dry" and equalised signals using the
When any eq fader is in its centre detent position the filter is automatically bypassed for optimum
All the inputs and outputs of the FCS-966 are electronically balanced with optional transformer
balancing. To make installation of the FCS-966 easier we"ve provided three differerent interface
connectors: XLR-type 1/4" TRS jack and Phoenix/Combicon screw terminals.
The EQ IN buttons switch the EQ path
into circuit. When switched out or power fails a high-quality relay switches the input signal directly to
the output connectors.
30 EQ filter faders on ISO centres each with nominal +/-15dB of gain. Positive centre-detent on 45mm
long-throw precision faders.
Sweepable high pass filter frequency adjustable from OUT (flat) up to 250Hz.
Smooth shelving filter +/-6dB of gain at 50Hz
Smooth shelving filter +/-6dB of gain at 14kHz.
Used for overall unity gain adjustment. Adjustable from - infinity to +10dB.
Triple-point clip detector that indicates red when the internal signal is clipping at any one of three
Shows output signal level (input signal when eq is bypassed) from -24dBu to +18dBu in 8 steps.