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The Model 355 Dual 31-Band 1/3 Octave Graphic Equalizer may be used in a variety of
applications such as live sound, recording studios, instrument racks, DJ sound systems
and fixed equipment installations. Designed to interface into any audio system, the Model
355 is a powerful tool for solving audio problems and creating interesting sound textures.
The Model 355 possesses a long list of impressive features including: constant Q circuitry,
20mm center detent sliders (with a selectable boost/cut range of 6dB or 12dB), balanced
XLR and 1/4? and unbalanced RCA input and output connections, adjustable high pass and
low pass filters, variable input level controls, signal clip level indicators, ground lift switch,
internal power supply and selectable line voltage switch. The rugged, all-steel constructed
chassis occupies 2U rack spaces and is intended for installation into standard 19? equipment
racks.
The 355 Dual Channel 31 Band EQ has the features and performance you need for any of
your audio applications requiring precise equalization. For the latest in equalizer technology
today, check out the 355 at your favorite A R T dealer.
355 - Dual 31 band EQ Features:
Dual Channel 31-Band Graphic Equalizer
Constant-Q Filtering
Balanced XLR, Active Balanced 1/4“, and Unbalanced RCA Input and
Output Connectors
Variable High-Pass and Low-Pass Filters
+/- 6dB or +/-12dB Level Adjustments
20mm Center Detented Frequency Band Sliders
Independent Level and Bypass Controls Per Channel
Designed for Years of continuous, reliable performance
Rugged All Steel Construction
One Year Warranty
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- Professional 15-band stereo graphic equalizer for live and studio applications
- Revolutionary FBQ Feedback Detection system instantly reveals critical frequencies and can also be used as audio analyzer
- Ultra-low noise 4580 operational amplifiers for highest signal integrity
- Dedicated mono subwoofer output with adjustable crossover frequency
- Additional low-cut filter removes unwanted frequencies, e.g. floor rumble
- Highly accurate 4-segment LED output metering and input gain controls for easy level setting
- Servo-balanced inputs and outputs with 1/4" TRS and gold-plated XLR connectors
- “Planet Earth" switching power supply for maximum flexibility (100
- 240 V~), noise-free audio, superior transient response plus low power consumption for energy saving
- 3-Year Warranty Program*
- Designed and engineered in Germany
| PRICE WITHOUT V.A.T.
BSS Opal FCS-966 Constant Q Graphic Eq
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.
Metering
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 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, we've 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. |
* 2 channel 15 2/3 octave band graphic equalizer
* 25Hz - 16kHz frequency control * Constant Q circuitry
(3% frequency accuracy) * Selectable 6dB or 12dB control
* Variable level control * By-pass switch * Overload threshold LED (5dB below clipping) * Ground lift switch * XLR & 1/4" TRS balanced Inputs/Outputs * Power: Selectable 120V/220V voltage
* Dimensions: 1.75" H x 19" W x x 8.5" D / 44.5mm x 483mm x 216mm - 1 space r.m. * Weight: 4.5 lbs. / 2.5kg
XEQ-152 Specifactions:
* Input type: Active balanced / Unbalanced * Output Impedance: |
DBX 2215 Dual 15-Band Graphic Equalizer with Noise Reduction
It's amazing. One little button. So much effect. dbx? Type III? Noise Reduction is an entirely new concept... virtually instantaneous encode/decode within the circuitry of the box. We started out to build the finest EQs possible, boxes with the heritage and performance to rival our famous 30 Series EQs. And to no one's surprise they came out awfully darn good. (Ask to see the Audio Precision plots compared to the competition.) But then, Roger (our chief engineer, a nice guy, as far as engineers go) got the crazy idea of putting this new noise reduction stuff in the box. We listened to it and were amazed. The EQs sounded great without it but with it the performance was nothing short of incredible. Check it out yourself and see.
But hey, Roger wasn't about to stop there. PeakPlus? Limiter. Who knows more about limiting than the folks at dbx; nobody... that's who. So when the guys were developing this new series of EQs they wanted something that would be unique to these EQs. That's when Roger got another one of his bright ideas and said "I bet they'll work a lot better if there's a cool limiter built in." Next thing you know, all the guys are in the studio amazed at the new limiter Roger had designed specially for the 20 Series. Once again, hearing is believing... With a threshold range of 0dbu to plus 20dbu, the patent-pending PeakPlus limiter is designed to tame your program material from the subtlest nuances to the rowdiest hits. Also, the four stage LED ladder gives you a great visual indication as to what the limiter is doing.
20 Series EQs. You used to have to settle for second best in a reasonably priced EQ but not any more. With the new 20 Series from dbx Professional Products you get a great EQ circuit, a graceful yet powerful limiter and the revolutionary new design of the Type III Noise Reduction. Check out the dbx 20 Series graphic EQs at your pro audio outfitter. You'll see, with the 20 Series EQs you get MORE!!!
SPECIFICATIONS:
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INPUT
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Connectors:
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1/4" TRS, female XLR (pin 2 hot), and barrier terminal strip
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Type:
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Electronically balanced/unbalanced, RF filtered
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Impedance:
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Balanced 40k ohm, unbalanced 20k ohm
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Max Input Level:
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>+21dBu balanced or unbalanced
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CMRR:
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>40dB, typically >55dB at 1kHz
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OUTPUTS
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Connectors:
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1/4" TRS, male XLR (pin 2 hot), and barrier terminal strip
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Type:
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Impedance-balanaced/unbalanced, RF filtered
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Impedance:
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Balanced 200 ohm, unbalanced 100 ohm
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Max Output Level:
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>+21dBu balanced/unbalanced into 2k or greater
>+18dBm balanced/unbalanced (into 600)
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SYSTEM PERFORMANCE
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Bandwidth:
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20Hz to 20kHz, +/-0.5dB
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Frequency Response:
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50kHz, +0.5/-3dB
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Noise Reduction In:
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(+/-6 and +/-15dB range):
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Signal-to-Noise:
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>102dB, unweighted, ref: +4dBu, 22kHz measurement bandwidth
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Dynamic Range:
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>120dB, unweighted
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Noise Reduction Out:
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(+/-6dB range):
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Signal-to-Noise:
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>94dB, unweighted, ref: +4dBu, 22kHz measurment bandwidth
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Dynamic Range:
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>112dB, unweighted
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Noise Reduction Out:
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(+/-15dB range):
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Signal-to-Noise:
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>90dB, unweighted, ref: +4dBu, 22kHz measurement bandwidth
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Dynamic Range:
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>108dB, unweighted
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THD + Noise:
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| | High-Definition 31-Band Stereo Graphic Equalizer with FBQ Feedback Detection System
- Professional 31-band stereo graphic equalizer for live and studio applications
- Revolutionary FBQ Feedback Detection system instantly reveals critical frequencies and can also be used as audio analyzer
- Ultra-low noise 4580 operational amplifiers for highest signal integrity
- Dedicated mono subwoofer output with adjustable crossover frequency
- Additional sweepable high and low-cut filters for each channel remove unwanted frequencies, e.g. floor rumble, hiss etc.
- Highly accurate 12-segment LED input/output metering and input gain controls for easy level setting
- Relay-controlled hard-bypass with an auto-bypass function during power failure (fail-safe relay)
- Servo-balanced inputs and outputs with 1/4" TRS and gold-plated XLR connectors
- “Planet Earth" switching power supply for maximum flexibility (100
- 240 V~), noise-free audio, superior transient response plus low power consumption for energy saving
- 3-Year Warranty Program*
- Conceived and designed by BEHRINGER Germany
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