DOD SR830QX 31 BAND.CONSTANT Q EQUALIZER

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248.00 incl. GR VAT

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SR831QXLR Graphic Equalizer      The SR831QXLR is a 1/3 octave, 31 band, constant Q equalizer housed in a two rack space, all steel chassis. It includes a shielded internal power supply, balanced XLR input/outputs, as well as balanced 1/4″ inputs and impedance balanced 1/4″ outputs.         Features ? Two space 31-band equalizer […]

 

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SR831QXLR Graphic Equalizer
    
The SR831QXLR is a 1/3 octave, 31 band, constant Q equalizer
housed in a two rack space, all steel chassis. It includes a shielded
internal power supply, balanced XLR input/outputs, as well as balanced
1/4″ inputs and impedance balanced 1/4″ outputs.
     
 
Features
? Two space 31-band equalizer
? Constant Q
? Low cut filter at 50Hz with a 12dB/Octave slope
? Balanced XLR inputs and outputs
? Bal 1/4″ inputs and impedance balanced 1/4″ outputs
? Shielded internal power supply
? 1/3 octave ISO frequency centers

Weight 5.44 kg

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DOD SR830QX 31 BAND.CONSTANT Q EQUALIZER removeGOLDEN AGE EQ-73 Equalizer removeAVALON AD2055 DUAL MONO PURE CLASSA PARAMETRIC MUSIC EQUALIZER removeRANE ME 15S 2 Channel 2/3 Octave microGraphic EQ removeDBX 215S 2X15 BAND GRAPHIC EQUALIZER removeBEHRINGER FBQ6200HD Ultra-Musical 31-Band Stereo Graphic Equalizer with FBQ Feedback Detection System remove
NameDOD SR830QX 31 BAND.CONSTANT Q EQUALIZER removeGOLDEN AGE EQ-73 Equalizer removeAVALON AD2055 DUAL MONO PURE CLASSA PARAMETRIC MUSIC EQUALIZER removeRANE ME 15S 2 Channel 2/3 Octave microGraphic EQ removeDBX 215S 2X15 BAND GRAPHIC EQUALIZER removeBEHRINGER FBQ6200HD Ultra-Musical 31-Band Stereo Graphic Equalizer with FBQ Feedback Detection System remove
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SKUSR831QXEQ73AD2055ME15SDBX 215SE008298
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Description
Content

SR831QXLR Graphic Equalizer
    
The SR831QXLR is a 1/3 octave, 31 band, constant Q equalizer
housed in a two rack space, all steel chassis. It includes a shielded
internal power supply, balanced XLR input/outputs, as well as balanced
1/4" inputs and impedance balanced 1/4" outputs.
     
 
Features
? Two space 31-band equalizer
? Constant Q
? Low cut filter at 50Hz with a 12dB/Octave slope
? Balanced XLR inputs and outputs
? Bal 1/4" inputs and impedance balanced 1/4" outputs
? Shielded internal power supply
? 1/3 octave ISO frequency centers

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

The AD2055 combines 100% discrete, pure class A signal amplifiers with state-of-
the-art passive and active filter topologies. The AD2055's unique circuitry delivers
very high resolution transient detail at the operational extremes of real world equalization
demands. The AD2055 auto-bias DC servo loop control eliminates the need for all
interstage capacitor coupling. The AD2055 breathes life into all musical performances!
 
AD2055 FEATURES
Pure Class A, 100% discrete design
Smooth musical detail and sonic excellence
Minimum audio signal path
Dual mono operation
Transparent active and passive filter design
High headroom +30dB Very low noise -94dB
Fully balanced inputs and outputs
DC coupled, no transformers in audio path
Switched frequencies in high and low bands
Mid bands use X10 frequency for extended range
Wide bandwidth -3dB 1Hz to 450kHz
Low distortion less than 0.5% THD and IMD
All signal routing with sealed silver relays Conductive
plastic potentiometers for low noise
External 150W toroidal power supply 100% discrete
power supplies for audio path
Long lasting, stainless steel hardware
 
SONIC EXCELLENCE
The Avalon AD2055 Pure Class A music equalizer is the most powerful, low noise
parametric equalizer available today. Designed to optimize absolute signal integrity
and musical performance, the AD2055 combines the best of active and passive filter
topologies with sonic excellence unequaled by lesser designs. The AD2055 is the
perfect solution for two buss music-program equalization, special instrument EQ and
FX applications and ultra high performance mastering studio's.

Features include state-of-the-art, balanced 100% discrete, Pure Class A signal amplifiers,
practical user features and rugged hardware designed to deliver true high performance
audio for many years. 

PASSIVE-ACTIVE FILTER DESIGN
Avalon equalizers feature the unique combination of both active and passive filter EQ designs.
This special combination enables the AD2055 to deliver high speed transient detail at the
operational extremes of real-world equalization demands. The passive high and low bands offer
alternate musical tone range to the full function active parametric mid bands. Passive equalizers
have long been a favorite with music lovers around the world.  Full bodied, powerful (up to +/-32dB,
64dB range !) and sweet frequency selections are the benefits of the passive high-low EQ bands.
The full bandwidth twin mid bands provide variable frequency selection (X10 frequency multipliers
for very wide range), variable Q (width) and amplitude control.

MINIMUM SIGNAL PATH DESIGN
Avalon's advanced true symmetry design offers high-voltage, large headroom, extended bandwidth
and very low noise. The use of 100% discrete, Pure Class A signal amplifiers give the serious music
professional unlimited sonic character and a natural harmonic detail that enhances the program
material and becomes one with the music itself. The Avalon AD2055 breathes life!

AD2055 SPECIFICATIONS
Circuit Topology  High-voltage 100% discrete, balanced and symmetrical
Class A 
Output Gain Range  Unity Gain 
Maximum Input Level  +30dB balanced XLR pin 2 hot 
Maximum Output Level  +32dB balanced 600 ohms, DC coupled, high-current
discrete Class A 
Input / Output Type  XLR type, pin 2 hot balanced 
Noise 20kHz Unweighted  -94dB (EQ in) 
Distortion THD, IMD  0.5% (typical 0.05% at +6dB 1kHz) 
Frequency Response -3dB  1Hz to 450kHz (input band limited) 
Equalizer Type  Passive high and low bands plus two fully parametric mid
bands 
Bypass  Hard-wire relay bypass for equalizer in-out 
Low Band F1  Passive, amplitude to -32dB to +32dB shelf or peak-dip curve 
F1 Frequency Range  Switched 10 position 18Hz, 25, 30, 50, 72, 100, 150, 215,
300, 450Hz 
Mid Band F2  Active, amplitude to -16dB to +16dB peak-dip curve 
F2 Frequency Range  Variable 35Hz to 450Hz (x10) 350Hz to 4k5Hz, Q (width)
0.3 to 3.0 
Mid Band F3  Active, amplitude to -16dB to +16dB peak-dip curve 
F3 Frequency Range  Variable 160Hz to 2k0Hz (x10) 1k6Hz to 20kHz, Q (width)
0.3 to 3.0 
High Band F4  Passive, amplitude to -26dB to +26dB shelf or peak-dip curve 
F4 Frequency Range  Switched 10 position 1k5Hz, 2k5, 3k5, 5k, 7k2, 10k, 12k5,
15k, 20k, 25kHz 
AC-DC Power  External AC supply, 150w toroidal transformer, 4 pin cable 90v
isolated, 
(B2T Power Supply Included)  100-240v selectable 50/60Hz, 150w max 
Dimensions  19 x 3.5 x 12 in (482 x 88 x 305mm) 
Shipping weight  30lbs (13.6 kg) 

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: Typically >112dB

 

Signal-to-Noise: Typically >95dB

 

THD+Noise:

  • 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
Weight5.44 kg3.00 kg13.60 kg2.30 kg2.00 kg2.70 kg
DimensionsN/AN/AN/AN/AN/AN/A
Additional information
Weight 5.44 kg
Weight 3.00 kg
Weight 13.60 kg
Weight 2.30 kg
Weight 2.00 kg
Weight 2.70 kg