MEQ-2000 24/96 MULTIMODE EQUALIZER, also called DSP blue, is the first member of the new digital audio 19" processor family, the DSP-2000. It is a extremaly versatile digital equalizer. The MEQ-2000 delivers warm analog sound and outstanding features thanks to the high-quality converters, the constant internal sampling rate of 96 kHz, and the power of absolutely precise low-noise digital processing functions. The 31-band graphic equalizer and 8-band parametric equalizer are supported by 6-band notch, low-cut, and high-cut filters. For sound finishing in mastering mode, a combined limiter/compressor is provided, for loudspeaker protection in reinforcement mode a reliable peak-limiter. A long separate delay in every channel allows adjusting the sound for different loudspeaker or spot microphone positions. The processor offers two fully independent channels that can be coupled for stereo use.

In connection with other members of the DSP-2000 audio processor family, the MEQ-2000 consistently remains in the 24-bit/96kHz digital domain through the whole audio processing path, maintaining the highest signal fidelity. The dithering and noise shaping options at the output of the processing chain take care of the audio quality if tailoring down to 16-bit CD.

The MEQ-2000 incorporates high-quality 24bit/96kHz AD and DA converters as well as a sophisticated sample rate converter. This allows digital input to accept every sample frequency from 20 kHz to 100 kHz and digital output to deliver every typical sample frequency used in digital audio.

The remote control capability via MIDI or RS-232 permits cascading the devices with other members of the DSP-2000 family or third party equipment and convenient controlling of the parameters over a PC compatible computer using proprietary software.

The MEQ-2000 is an ideal universal tool for both the mastering and reinforcement engineer.

Typical Applications:

Two-channel or stereo recording and mastering equalizer:
analog and digital tracking, mixing and mastering
sound shaping and compression
critical material processing (notch, high-cut, low-cut)
conversion between different analog and digital formats.
sensitive treatment of solo tracks
unique linear-phase mastering (optionally with the DSP1 extension module)

Two-channel or stereo digital sound reinforcement equalizer:
sound field control
balancing of the room characteristics
microphone alignment
speaker compensation and protection
manual feedback reduction
automatic room measurement (optionally with the DSP1 extension module)

High-End 24-bit, 96 kHz A/D and D/A Converters
Digital I/O on AES/EBU or S/PDIF with comprehensive Sample Rate Conversion. Input Rates: 20 - 100 kHz, Output Rates: 32, 44.1, 48, 64, 88.2, 96 kHz
Superior THD+N performance ( < 0.001% ) for the crystal clear sound
40-bit Internal Signal Path to maintain increased head-room and low-level signals
Up to 80-bit Processing Accuracy for the lowest digital distortion
Internal Sampling Frequency always on 96 kHz to achieve analog-like processing
Inherent System Delay less than 1 ms
Extended Frequency Bandwidth up to 31.5 kHz
Output Dither at 16, 20, or 24 bits
8-Band Fully Parametric Equalizer: Low Shelving, 6 x Bell, High Shelving
Low-Cut and High-Cut Filters with switchable slopes
6-Band Notch Filters for feedback suppression
31-Band Graphic Equalizer
Visually displayed filter curves
True Peak Limiter for loudspeaker protection
Mastering Limiter/Compressor with Soft-Knee and Auto-Release
Absolutely clickless filter parameter update
Intuitive Programming and Real-Time Navigation Interface
Two Temporary Preset buttons for Real-Time Setup Comparison
32 Factory and User Presets
Remote Control via MIDI or RS-232
Software Update and special PlugIns via Internet and RS-232

SIGNAL PROCESSING FUNCTIONS (per channel)

Full Parametric Equalizer

Eight Low-Noise Digital filters
Low Shelving, 6 x Constant-Q Bell, High Shelving
Shelving Characteristics
Baxandall or 6 dB/Octave
Extended Frequency Range
20 Hz to 25 kHz
Bandwidth
1/12, 2 octaves
Boost/Cut Range
16dB or 8dB
Graphic Equalizer
31 constant-Q Filters on 1/3-octave ISO or musically divided center frequencies
Bandwidth
1/3, 2/3, or 1/6 octave
Boost/Cut Range
±16 dB or ±8 dB
Cut Filter Block
Low-Cut and High-Cut Filters
Low-Cut Frequency Range
2 Hz to 2 kHz
suitable for DC-Removal and De-Rumble
High-Cut Frequency Range
200 Hz to 25 kHz
Slope
6, 12, 18 dB/Octave
Characteristics
Bessel, Butterworth
Notch Filters (Six Low-Noise Digital Filters)
Frequency Range
20 Hz to 20 kHz
Q
15, 30, 45, 60
Cut
0 ~ 24 dB
Limiter/Compressor
(mastering mode version)
Unique Combination of a Limiter and Compressor
smoothly adjustable between limiting and compressing
Knee
Hard and Soft (different grades)
Threshold
0 ~ 50 dBFs
Ratio
1:1 to inf:1
Attack Time
0.1 to 200 ms
Hold Time
0.1 to 500 ms
Release Time
20 to 5000 ms
Program-Dependent Auto-Release Function
Make-Up Gain
True Stereo Coupling
Sophisticated Metering
Input, Output, Gain Reduction
Peak Limiter
(reinforcement mode version)
Brick-Wall function
Threshold
0 ~ -50 dBFs
Knee
Hard and Soft (different grades)
Auto-Attack for Reliable Peak-Stop function
Hold Time
0 to 200ms
Relase Time
20 to 2000ms
Program Dependent Auto-Release Function
Make-Up Gain
True Stereo Coupling
Sophisticated Metering
Input, Output, Gain Reduction
Master Delay
Length
2 x 1240 ms
Programmable in milliseconds, meters or feet (the actual environment temperature can be considered)
Sophisicated Signal Measurement Adjustment
Peak / RMS for Input and Output
Correlation Meter
Normalizing
Digital Output Level Attenuation and Requantization with Dither
Attenuation
0 to -24 dBFs
Phase Invert
Dithering Levels
16, 20, 24 bits
Dither Type
TPDF, HTPDF
1/3 Octave Real-Time Spectrum Analyzer
31-Band conform to GEQ
Peak-Hold Function with Reset
Adjustable Averaging and Decay Time
Adjustable Display Range
Maximum Level and Zoom
Inverse Spectral Function as a reference for GEQ
Reference Signal Generator
Waveforms
Sine, Sine Sweep
Noise
White, Pink
Manual Feedback Detection and Suppression
Room Measurement and Correction
Comprehensive Sample Rate Conversion
Input Sample Rates
0 - 100 kHz
Output Sample Rates
2, 44.1, 48, 64, 88.2, 96 kHz
Detailed Digital I/O Status Monitoring
AES-3 (AES/EBU) conform
IEC958 (S/PDIF) conform
Configuration Modes
Two-Channel / Mono
Mastering / Reinforcement
Acoustic Measurements
Channel Swap
Hard Bypass (switchable to Hard Mute with jumpers)
EXTENDED FUNCTIONALITY with add-on DSP1 Module and optional software PlugIns
Real-Time Spectrum Analyzer simultaneously to the complete processing capability
8-Band Liner-Phase Mastering Equalizer
Expander / Noise Gate
Extended Acoustic Measurements Functions

 

DSP-2000 (Common Specifications)
Audio Inputs and Outputs
Analog Inputs
XLR (pin 2 hot) electronic balanced, RF suppressed
Impedance
> 10 kOhms (balanced)
Maximal Signal Level
+24 dBu(Input Potentiometer @ +12 dB)
Input Level Range (analog adjusted)
-12 dB to +12 dB
Digital Inputs
XLR
AES-3 or AES/EBU (up to 24 bits) transformer balanced
Coaxial and Optical
S/PDIF (up to 20bits), IEC 958, EIAJ CP-340 transformer balanced
Sample Rate
20 to 100 kHz (any)
Analog Outputs
XLR (pin 2 hot)
electronic balanced, RF suppressed
Impedance
100 Ohms (balanced)
Maximal Signal Level
+24dBu @ 600 ohm
Output Level Gain
0 to -24 dBFs(digitally adjusted)
Digital Outputs
XLR
AES-3 or AES/EBU (up to 24 bits) transformer balanced
Coaxial and Optical
S/PDIF (up to 20 bits), IEC 958, EIAJ CP-340, coax with transformer
Sample Rate
32kHz, 44.1kHz, 48kHz, 64kHz, 88.2kHz, and 96kHz
Audio Performance
Digital Processing
A/D conversion
Sigma-Delta, 24-bit, 96 kHz
D/A conversion
Sigma-Delta, 24-bit, 96 kHz
Digital In/Out
24-bit, 32 to 96 kHz
Internal Sampling Frequency
96 kHz(always)
Calculation Resolution
up to 80 bits
Internal Signal Path
40 bits
Inherent System Delay
< 1 ms (between any input and output)
Analog Input
Frequency Range
10 Hz - 31.5 kHz, 0/-0.5 dB
Dynamic Range
> 113 dB(A)
THD+N
0.001% (10 Hz - 31.5 kHz)
Crosstalk
< -105 dB @ 1 kHz
CMRR
> 55 dB @ 1 kHz
Analog Output
Frequency Range
10 Hz - 31.5 kHz, 0/-0.5dB
Dynamic Range
> 115dB(A)
THD+N
0.0015% (10 Hz - 31.5 kHz)
Crosstalk
< -105 dB @ 1 kHz
CMRR
> 50 dB @ 1 kHz
Digital In/Out
Frequency Range
10Hz - 44kHz, 0/-0.2dB
Dynamic Range
> 124 dB(A)
THD+N
0.0005% (10 Hz - 44 kHz)
Memory
32 Factory Presets
32 User Presets
2 Temporary Presets for fast setup comparison
Remote Interface
MIDI
In, Thru, Out
RS-232
In, Thru
General
Password Protection with Alphanumeric Key
Power Source
100 - 120/200 - 240 VAC, 50/60 Hz, 25 VA
Weight
6.5kg
Dimensions
19" 2U Rack, 482(W) x 88H) x 300(D) mm

 

Owners Manual, Spec Sheet, Block Diagram, Drawing, and Large Scale Photo can be found here.