BSS Opal FCS-966 Constant Q 2-Channel Graphic Equalizer from dbx provides a generous +/-15 dB of control range on each of 30 constant Q frequency bands. For optimum performance, each filter band is arranged to be out of circuit if its sliders are left in the center of its travel, and thus does not contribute unnecessary noise or distortion.
In addition, a sweepable high-pass filter, variable gain, and HF/LF contour controls are provided for extra flexibility. Indication of level is provided by an 8-segment meter that reads input level when the unit is bypassed, and output level when active. This allows accurate level matching of the equalized to un-equalized signal. Indication of overload is provided by a separate clip indicator that simultaneously monitors the level at 3 critical internal points to ensure that any overload does not go unnoticed.
When bypassed, the FCS-966 Equalizer connects the output directly to the input with a high-quality relay, ensuring that a signal passes even with a loss of AC power. The relay drive also incorporates a power on delay and AC power loss detector, ensuring that there is no possibility of on/off thumps being generated by the unit.
For installation flexibility, XLR, jacks, and pluggable terminal block (Combi-con) connectors are provided as standard, with transformer isolation on both the inputs and outputs available as an option. The mains lead is a standard detachable IEC type.
The Opal FCS-966 Equalizer features separate LF and HF contour filters, which can change the 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
More Gain Control Per Filter
Input / Outputs
|Chassis||3U rack spaces|
|Input Connectors||XLR, TRS, Combi-con (2 each)|
|Output Connectors||XLR, TRS, Combi-con (2 each)|
|Equalizer||EQ Bands: 30 per channel (60 total)|
|Filter||Width (Q): Constant-Q|
|Gain||EQ: +/- 15 dB per band, plus - inf to +10 dB overall|
|Metering||8-segment LED per channel|
|High-Pass Filter||Sweepable, flat to 250 Hz|
|Contour||Low Frequency: Smooth shelving filter, +/- 6 dB at 50 Hz
High Frequency: Smooth shelving filter, +/- 6 dB at 14 kHz
|Input Impedance||10 kΩ balanced or unbalanced|
|Headroom||Input: >20 dBu|
|Maximum Output Level||>21 dBu into 600 Ω or greater|
|Frequency Response||45 kHz +/-1 dB|
|Noise||< -94 dBu 22 Hz to 22 kHz|
|Dynamic Range||>115 dB|
|Control||Gain Control: 10 dB to infinity
HP Filter Control: OUT to 250 Hz @ 12 dB / octave
|Frequency Bands||+/-15 dB on ISO centers with a Q of 4|
|Package Weight||6.6 lb|
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