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Recent developments in sound measurement techniques have revealed the limitations
of existing graphic equalisers. The wealth of data that such equipment can provide for
the users requirements - feedback suppression, increased headroom, room equalisation/
compensation can no longer be adequately provided for with a simple graphic equaliser.
The Apex PE MKII is the solution, providing a tool which both enables maximum correction
whilst shaping the response to your specific requirements, combining a full graphic equaliser
with a complementary parametric equaliser/notch filter.
FEATURES:
Electronically balanced input with a balanced floating output stage.
All potential overload points are continuously monitored by an extremely fast "peak-peak"
overload detecter circuit, followed by a "peak-stretching" circuit for clear indication of overload
conditions.
Reliablilty is the hallmark of any product, and the mechanical integrity of the components housing
is the vital prerequisite. Sophistical CAD programmes and advanced engineering concepts have
been applied to the chassis design to eliminate the stress and torsional movements which can
damage the electronics.Special attention has been given to the purity of the signal path.The musicality
of previous designs of Apex equalisers has been well appreciated by users, and the PE continues this
tradition, noise and distortion are significantly better than 16-bit digital.
Fine-tuning your system is essential. The "vernier control" provides adjustment refinement on an
unprecedented scale.
In the event of power failure to the unit, a failsafe relay links the input to the output ensuring that signal
continuity is maintained.
SPECIFICATIONS:
Input
Electronically balanced
Absolute overload point +22dBm
Impedance 10 kOhm (each leg), equal impedance for ?+? and ??? legs
CMRR Better than 65dB (20Hz-20kHz)
connectors XLR-3 type ( pin 1: signal ground, pin 2: hot ?+?, pin 3: cold ?-? )
Output
Electronically balanced and floating, simulating transformer output with app.
10kHom to ground impedance for each leg
Max level +21dBm into 600 Ohms
Impedance 51 Ohms (each leg)
Symmetry balance Better than 65dB (20Hz-20kHz IEC)
connectors XLR-3 type ( pin 1: signal ground, pin 2: hot ?+?, pin 3: cold ?-? )
Performance
Frequency response +0 ?0.5 dB, 20Hz-20kHz (graphic EQ in)
THD < 0.01%, 20Hz-20kHz
Noise < -94 dBm (typ. -98dBm), graphic and parametric equalisers in circuit (0dB settings)
Measurements: , 22Hz-22kHz RMS unweighted
Level Control -? to +6dB
Level control ?0dB? cal. accuracy +- 0.2 dB (overall gain input to output)
Overload indicator
Lights for approximately 200ms if the instantaneous peak voltage at any point in the
equaliser comes within 2dB of clipping
Filters
Graphic equaliser:
30 ISO center frequencies
25Hz to 20kHz 1/3 octave
Center frequency tolerance +-1% (typically better than +-0.5%)
Q tolerance +-1%
Max boost/cut 6 or 12dB +-0.5dB reciprocal
switchable
Parametric filters:
Tuning ranges 18-200Hz, 180Hz-2kHz, 1800Hz-20kHz
Vernier control +- 10% of main frequency control
Range of Q adjustment 0.5 to 8
Range of level adjustment
-? to +15dB (typ -45 to +15.5dB) non reciprocal. Smaller cut than boost curves through
addition and substraction of parametric bandpass filter output to filter input
Each filter individually switchable
High pass filter:
Frequency range 15-300Hz (-3dB frequencies)
Type
Maximally flat 12dB/oct
Switchable
Low pass filter:
Frequency range 2-40Hz (-3dB frequencies)
Type
Maximally flat 12dB/oct
Switchable
Power Requirements
Voltage 110/120/220/240V 50/60Hz
Consumption 20VA
Connector IEC type
Size and weight
dimensions
482 x 89 x 255 mm (19 x 3.5 x 10 inch)
weight 5 kg | 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. |
The Rane ME 15S microGraphic Equalizer is a two-channel, 2/3-octave design with 20 mm sliders in a single rack space unit. It features a Range switch for high slider resolution in the ±6 dB mode, equivalent resolution to 45 mm sliders found on the DEQ 60L. The ±12 dB mode provides a wide range of control over system audio.
The active filter sections feature Raneʼs innovative constant-Q (constant bandwidth) design. Constant-Q means the bandwidth of each individual filter is guaranteed to be narrow enough to prevent unwarranted interaction between filters, yet wide enough to produce exactly the type of correction curve demanded by even the most unusual acoustic surroundings. This differs dramatically from conventional designs of the past, encumbered with the unfortunate characteristic of changing bandwidth when changing boost/cut amounts.
Front panel controls and indicators include an overall rotary Level control for each channel as well as Overload indicators. Passive pushbutton Bypass switches feature LED indicators, avoiding ambiguity by being on when the unit is Bypassed. (A passive Bypass switch requires no power to operate. This allows completion of the audio path should power fail in the ME 15S.)
Inputs and Outputs are electronically balanced designs, capable of unbalanced operation when required. They accept and drive all possible signal levels into normal load impedances. Balanced applications choose between the XLR or 1/4" Tip-Ring-Sleeve connectors. Unbalanced sources also may tie to the ME 15S through mono 1/4" connectors (no ring connection).
Features - Constant-Q Bandwidth Design
- Overall Level Controls and Passive Bypass Switches
- 20 mm Filter Slide Controls with ±6 dB or ±12 dB Slider Range
- Infrasonic, Ultrasonic, & RFI Filters
- Balanced XLR and 1/4" TRS Inputs and Outputs
- Universal internal switching power supply (100-240 VAC)
| INPUT
Connectors: 1/4" TRS, female XLR (pin 2 hot)
Type: Electronically balanced/unbalanced, RF filtered
Impedance: Balanced 40k ohm, unbalanced 20k ohm
Max Input Level: >+21dBu balanced or unbalanced
CMRR: >40dB, typically >55dB at 1kHz
OUTPUTS
Connectors: 1/4" TRS, male XLR (pin 2 hot)
Type: Impedance-balanaced/unbalanced, RF filtered
Impedance: Balanced 100 ohm, unbalanced 50 ohm
Max Output Level: >+21dBu balanced/unbalanced into 2k ohm or greater
>+18dBm balanced/unbalanced (into 600 ohm)
SYSTEM PERFORMANCE
Bandwidth: 20Hz to 20kHz, +0.5/-1dB
Frequency Response: 50kHz, +0.5/-3dB
Dynamic Range: Typicall >112dB
Signal-to-Noise: Typically >95dB
THD+Noise: |
INPUT
Connectors: 1/4" TRS, female XLR (pin 2 hot)
Type: Electronically balanced/unbalanced, RF filtered
Impedance: Balanced 40k ohm, unbalanced 20k ohm
Max Input Level: >+21dBu balanced or unbalanced
CMRR: >40dB, typically >55dB at 1kHz
OUTPUTS
Connectors: 1/4" TRS, male XLR (pin 2 hot)
Type: Impedance-balanaced/unbalanced, RF filtered
Impedance: Balanced 100 ohm, unbalanced 50 ohm
Max Output Level: >+21dBu balanced/unbalanced into 2k ohm or greater
>+18dBm balanced/unbalanced (into 600 ohm)
SYSTEM PERFORMANCE
Bandwidth: 20Hz to 20kHz, +0.5/-1dB
Frequency Response: 50kHz, +0.5/-3dB
Dynamic Range: Typically >112dB
Signal-to-Noise: Typically >95dB
THD+Noise: | Digital stereo active crossover with 4 inputs and 8 outputs, incl. software .
- Flexible routing configurations for all standard mono and stereo output operating modes
- 4 analog inputs and 8 analog outputs (XLR)
- Active frequency filter types (Bessel, Butterworth and Linkwitz-Riley) with slopes up to 24 dB/octave split up the audio signal into different frequency bands
- Incl. software editor (for PC and Mac) for remote control via computer through USB interface: store, transfer, and manage your presets
- Up to 30 user presets storable in the device via software
- 5 menu languages selectable (German, English, French, Spanish, Dutch)
- Alphanumeric LCD screen with 2 lines of 16 characters each
- Input sensitivity digitally adjustable
- Inputs and outputs with 4-digit LED level meter as well as clip and limit LED indicator
- Mute switch with LED indicator per output
- 7-band parametric EQ per output
- Up to 7 ms signal delay adjustable for the outputs
- Output limiter with adjustable limits and automatic attack and release settings as overload protection for your amplifying system
- Switchable phase
- Lock function for prevents undesired changes to settings
- Rack installation, 1 U
- Windows XP, Vista, 7, 10 and Mac OS X 10.5.8 and better
- Digital signal processor
- The device can be connected via USB to the PC in connection with DXO Software
The firmware can be updated via the PC connection
- (19") 48.3 cm rack installation 1 U
| Power supply: |
100-240 V AC, 50/60 Hz
6 V DC 800 mA |
| Power connection: |
Mains input via Coaxial power connector (M) power supply cord with AC adapter (provided) |
| Frequency range: |
10 - 22000 Hz |
| THD: |
<0,005 % at 1 kHz |
| DSP: |
Digital signal processor |
| Crossover frequency: |
20-20000 Hz |
| Impedance: |
Input 10 kOhm
Output 50 Ohm |
| Gain: |
Output: -50 dB to +12 dB |
| Filter: |
Linkwitz-Riley; Butterworth; Bessel; 6db/oct; 12db/oct; 18db/oct; 24db/oct |
| Delay: |
0 - 7 ms |
| Dynamic range: |
Input: 114 dB
Output: 110 dB |
| Sample rate: |
48 kHz |
| Connections: |
Input: line via 4 x 3-pin XLR
Output: line via 8 x 3-pin XLR |
| Max. level: |
Input: +22 dBu
Output: +9 dBu |
| USB port: |
Typ B |
| PC connect: |
DXO Software via USB, firmware can be updated |
| Housing design: |
(19") 48.3 cm rack installation 1 U |
| Dimensions: |
Width: 48,3 cm
Depth: 22,3 cm
Height: 4,45 cm |
| Weight: |
1,90 kg |
|
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