Add to cart

FEATURES BSS FCS-966 OPAL:


Input Section
Input Impedance 10kOhm, electronically balanced
Maximum Imput Level > 20dBu
CMRR >-40dB @1kHz

Output section
Output Impedance < 50 Ohms, electronically balanced
Maximum Output Level > 20dBu into 600 Ohms

Filters
HP filter control OUT to 250Hz @ 12dB/octave
LF contour /-6dB shelving @ 50Hz 6dB/octave
HF contour /-6dB shelving @ 14kHz 6db/octave
FREQUENCY bands /-15dB on ISO centres with a Q
of 4

General Performance
Frequency Response 5Hz to 45kHz /-1dB
Noise <-94dBu 22Hz to 22kHz
Dynamic Range > 115dB
Cross Talk >-80dB @1kHz
Distortion <0.005%THD (80kHz measurement
BW) 20Hz-20kHz.
GAIN control 10dB to -infinity

- Dimensions 19" x 5.25" x 7.1"
(483mm x 134mm x 180mm)
- Weight 6.6lbs (3kgs), unpacked
- AC Power 115/230V AC, 50/60Hz, 30VA.


Graphic equalisers are found in just about every sound application,
from room contouring to feedback control and general audio
sweetening.

Traditionally, much general eqing 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 eqs
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 eqs. 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.

Metering
BSS Audio believes in providing engineers with information, and the
FCS-966s 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 gain control.

Centre Bypass
When any eq fader is in its centre detent position, the filter is
automatically bypassed, for optimum performance.

Input/Outputs
All the inputs and outputs of the FCS-966 are electronically
balanced, with optional transformer balancing. To make installation
of the FCS-966 easier, weve provided three differerent interface
connectors: XLR-type, 1/4" TRS jack and Phoenix/Combicon screw
terminals.

Relay Bypass
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.



Control Descriptions

Faders
30 EQ filter faders on ISO centres, each with nominal /-15dB of
gain. Positive centre-detent on 45mm long-throw precision faders.

HP Filter
Sweepable high pass filter, frequency adjustable from OUT (flat) up
to 250Hz.

LF Contour
Smooth shelving filter, /-6dB of gain at 50Hz

HF Contour
Smooth shelving filter, /-6dB of gain at 14kHz.

GAIN
Used for overall unity gain adjustment. Adjustable from - infinity
to 10dB.

CLIP
Triple-point clip detector that indicates red when the internal
signal is clipping at any one of three critical points.

LED Meter
Shows output signal level (input signal when eq is bypassed) from
-24dBu to 18dBu in 8 steps.