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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 |
The class-A circuit used in the EQ-73 is similar to the eq section in the classical 1073 module, without the high pass filter. Additional frequencies have been added and the mid frequency band uses two inductors, the higher value of the second one is used for the two lowest frequencies, 160 Hz and 240 Hz, to achieve a suitable response.
The sound character is warm, punchy, sweet and musical. These classic characteristics have been heard on countless recordings through the years and it is a versatile sound that works very well on most sound sources and in most genres. The essence of this sound is now available at a surprisingly low cost, making it available to nearly everyone.
The EQ-73 has stepped frequency controls that offers a wide selection of frequencies from 20 Hz to 24 kHz.
The Low and High frequency bands are shelving and the mid frequency band is of the bell type.
The control range is +/-15 dB for the two lower bands and +/- 18dB for the high frequency band.
There are separate bypass switches for all three bands.
The EQ-73 is made to be used together with one of our PRE-73 models that has an Insert jack. It can also be used with many other units that has a low level insert jack.
Combining a PRE-73 and an EQ-73, and using a UNITE rack kit to mount them together, one will get a 19-inch 1073-style unit at a low cost and with a great sound!
FEATURES
- Vintage Style electronics. No intergrated circuits in the signal path
- 3-band with a dual inductor based mid frequency band
- Stepped frequency selection
- A wide selection of frequencies from 20 Hz to 24 kHz
- Control range up to +/- 18 dB
- Separate Bypass switches for each band
- Tantalum capacitors in the signal path
- Made to be used together with one of our PRE-73 models with an Insert jack or any other unit with a low level Insert jack
- TRS jack for in-and output connection, the nominal working level is around 18 dBu
- Selectable ground lift switch
- External power supply to avoid interaction with the audio circuits
- Great sound that suits most sound sources and genres
- A solid build quality that will last many years of normal use
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- Audiophile 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 Limiters with gain reduction meters for each channel protect your sound system from overload and distortion
- Pink noise generator provides test signals to adapt your sound system to any room acoustics
- Mono subwoofer output with dedicated level control and adjustable crossover frequency
- Additional sweepable high and low-cut filters for each channel remove unwanted frequencies e.g. floor rumble, hiss etc.
- Highly accurate 8-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
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iEQ-15 Dual 15-Band Graphic EQ with Type V? NR and AFS?
With an EQ heritage that has produced countless industry standard
patents and dates back more than 30 years, the dbx iEQ-31 easily
lives up to the dbx legacy of uncompromised sonic integrity. In
addition to unsurpassed equalization specs, the iEQ-15 also offers
the built-in necessities which include AFS? feedback Suppression,
Type V? noise reduction and PeakStopPlus? limiting. Besides
including two 15-band channels of 2/3-octave equalization, the iEQ-15
also offers +12 dB input gain range; switchable +6 or +15 dB boost/cut
range, 40mm faders, XLR, 1/4'' and Euroblock inputs and outputs,
nonconductive nylon sliders; and an intuitive user interface with comprehensive
output and gain reduction metering. As always, the inevitable result of our
meticulous attention to detail and top-quality componentry is exceptional
sound, performance, and reliability.
The iEQ series represents a major step forward in the performance of EQs.
The iEQ series is now able to offer state-of-the-art digital EQ performance
and specs with an analog look and feel. From its amazing 10Hz to 22kHz
frequency response, to its 113dB dynamic range and Advanced Feedback
Suppression (AFS?), dbx proprietary Type V? noise reduction
and PeakStopPlus? limiting, the iEQ-15 offers out of this world specifications
with a downto- earth price point. Sure to find a home in the studio, on tour and
with installed sound venues, the iEQ-15 is destined to take its rightful place in
the lineage of great dbx? signal processors that are the professional?s choice
in signal processing. With such pristine design and quality, the iEQ-15 offers
the maximum sonic flexibility in a straight forward interface and rock-solid construction.
? Advanced Feedback Suppression (AFS?)
? Type V? Noise Reduction
? PeakStopPlus? Limiting
? 2/3-octave Constant Q frequency bands
? Switchable boost/cut ranges of ±6 or ±15dB
? 18 dB per octave 40Hz low-cut filter
? ±12dB input gain range
? XLR, TRS and Euroblock Inputs and Outputs
? Internal Toroidal Transformer
? Frequency Response of 10Hz to 22kHz
? Dynamic range of greater than 113dB
? User Power Up Features
? Relay Bypass for Power Failure System Protection
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* 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: |
Phonic's GEQ3102F is the authentic soundman's choice of EQ - a dual channel 31-band equalizer, offering 6 or 12 dB of cut or boost on standard ISO center frequencies between 20 Hz and 20 KHz. The GEQ3102F is 2-rack space units high and accepts both 1/4" TRS phone jacks and XLR connectors, making it ideal for any studio or live venue setup.
- Sweepable high and low cut filters on each channel to remove unwanted frequencies
- Ultra low-noise audio operational amplifiers offer outstanding sound performance
- Relay-controlled hard-bypass with an auto-bypass function during power failure
- Dedicated subwoofer output with user-adjustable low-pass filter
- Feedback detection circuitry for indicating critical frequencies
- Balanced inputs and outputs with 1/4" TRS and XLR connectors
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