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DRIVE RACK PA Complete Equalizaton & Loudspeaker Management System
The DriveRack? PA continues the legacy of DriveRack? series, which
has been created by the company that has been redefining the standard
of signal processing for more than 30 years. The DriveRack? PA was
designed with the purpose and vision of providing state-of-the-art signal
processing, while utilizing a simple and intuitive user interface. This goal
has been achieved by offering two independent channels of processing
power with a linkable 28-Band Graphic equalizer, industry-standard dbx?
stereo compressor module, feedback eliminator and the 120A Subharmonic
Synthesizer on the input, with a six channel output system that includes
parametric EQs, and Peak Plus? limiters (which are used to provide
protection against speaker blowouts) and alignment delay. These features
combined with the Wizard setup system, represent a methodical design
that is guaranteed to deliver optimal, all-inclusive processing in a completely
scalable system
* Stereo Feedback Elimination with 12 feedback notch filters
* Dual 28-band Graphic EQ
* Classic dbx? Compressor
* 120A Sub-harmonic Synthesizer
* 2x3, 2x4, 2x5, 2x6 Crossover Configurations
* Stereo Multi-band Parametric EQ
* Stereo Output Limiters
* Alignment Delay
* Pink Noise Generator
* Auto-EQ with 28-band RTA
* JBL? Speaker and Crown Power Amp Tunings with Setup Wizard
* 25 User Programs/25 Factory Programs
* 2 Channel XLR Input and 6 Channel XLR Output
* Front panel RTA-M XLR input with phantom power
* 24-Bit ADC/24-Bit DAC, >110 dB Dynamic Range
* Full Graphic LCD Display
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The ARX EC-2 is a flexible yet affordable 24 dB per octave Phase Correct active crossovers.
It has 2 modes of operation; as either Stereo 2 way or a Mono 3 way units, with a switch on
the back panel selecting either mode.
Features
Ultra low noise circuitry
Totally phase aligned at crossover point
Switchable Dual Channel 2 way or Single Channel 3 way
Unique 'semi-fixed' crossover point
24dB per octave (Fourth Order) Linkwitz-Riley filters
Separate Summed Mono Output
Balanced Inputs and Outputs
Built in High Pass filters
Intuitive, 'user friendly' layout
Flawless performance in any audio environment
Tamper-Proof Crossover Points
The crossover points are determined internally by the value of 4 resistors per channel; changing
the resistor value changes the crossover point. This 'semi fixed' method avoids the pitfalls of
externally adjusted crossover points, making the crossover points tamper-proof once they are set.
Idle fingers can't fiddle with the crossover points and create havoc with the system!
As a handy guide, a list of common crossover points and their corresponding resistor values are
printed inside the unit's lid, and also set out in the Owner's Manual.
On the front panel are level controls for Low and High in dual channel 2 way mode, and Low, Mid
and High in single channel 3 way mode, with corresponding Outputs on the rear panel.
Balanced Inputs and Outputs
EC-2 has Balanced Inputs and Outputs, on XLR connectors.
The EC-2 also has an additional summed Mono Low output, for applications that need a Mono Low
feed (e.g. Left and Right full-range plus a single Sub Bass speaker).
High Pass Filter
There is also a preset 30 Hz HighPass filter to remove unwanted subsonics which can damage speakers
and waste amplifier power.
In addition, each output has up to +6 dB of gain available, to compensate for amplifiers and speakers of
differing sensitivities.
Universal AC Power
AC power range is a universal 100 to 120V or 220 to 240VAC, and is connected to the unit via a standard
IEC connector, with built-in fuse and voltage change switch.
Uncompromising Audio Quality
Innovative circuit design is pointless unless it delivers stunning sound quality, and here the EC-2 excels.
It has been designed for uncompromising audio quality, and to achieve this, Linkwitz Riley 24dB (Fourth
Order) state variable filters are used throughout, ensuring a smooth Phase Correct transition through the
crossover region.
From Stage Monitors to Studio Monitors, from Front of House to the Front room of your House, the ARX
EC-2 is a crossover that is suited to any application that requires flawless, transparent sound.
You'll never compromise on Quality when you choose ARX
T E C H N I C A L S P E C I F I C A T I O N S
Input Impedance Balanced 20 Kohms, Unbalanced 10 Kohms
Input Headroom + 21 dB
CMRR >45 dB, 20 Hz-20 KHz
Output Impedance Balanced 300 ohms, Unbalanced 150 ohms
Output Level (Max) + 21dB
Frequency Response 30Hz-20KHz +or- 0.5dB
Note: 30 Hz is a function of the High Pass filter
Signal to Noise ratio (Controls at Unity) -90 dB Unweighted, -93 dB 'A' weighted
Distortion 004% THD,0dB,1KHz
Dynamic Range 111 dB
Power Requirements 100/120 V AC, 220/240 V AC
Weight 5 lbs/2.2 Kg
Dimensions 19“W x 13/4“H x 6“D, 482 x 44 x 155mm
Input Connector type XLR
Output Connector type XLR
Crossover point frequencies are changed internally by varying the value of 4 resistors
per channel.
Front Panel Controls
Low and High Output controls for 2 way mode
Low, Mid and High Output controls for 3 way mode
Marker panels for labelling crossover assigns
2 way/ 3 way status LEDs
Rear Panel
Balanced XLR Inputs and Outputs
Additional summed mono Low output
2 way / 3 way mode switch | The LD Systems X223 is a stereo 2 way / mono 3 way crossover in standard 19"/1U rack format. Its rugged construction, high quality and robust knobs as well as the integrated power unit are rarities in this price range. It provides a mono sub output, an adjustable crossover frequency for each channel, adjustable LF/HF and input gains, phase reverse controls, switchable 40 Hz High-Pass filters and symmetrical XLR In- and Outputs. With the LD Systems X223 you get a crossover fulfilling the professional standards and offering great quality and sound characteristics.
Product type
Signal Processors
Version
2-way stereo/3-way mono
Frequency response
20 - 20.000 Hz
Signal-to-noise ratio
> 93 dB
Total Harmonic Distortion (THD)
< 0.004 %
Crosstalk
< - 80 (20 - 20.000 Hz) dB
Max. input level
+21 (balanced or unbalanced) dBu
Max. output level
+21 (balanced or unbalanced) dBu
Input impedance (kOhms)
50000 kOhm
Output impedance
200 Ohm(s)
Controls
2 x crossover frequency low/high, 2 x crossover low/mid, 2 x high gain, 2 x highpass (40 Hz), 2 x input gain, 2 x low gain, 2x frequency switch x1/x10, 4 x inv switch, LF sum, Mono/stereo mode
Indicators
2 x clip, 2 x crossover x 10, 2 x highpass, 4 x inv., mono, stereo
Line input connectors
XLR
Line output connectors
XLR
Mains connector
IEC socket
Operating voltage
220 V AC - 240 V AC
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The DX 4008 is a complete 4 input - 8 output digital loudspeaker management system designed for the touring or fixed sound installation markets.
The absolute latest in available technology is utilized with 32-bit (40-bit extended) floating point processor and high performance 24-bit Analog Converters. The high-bit DSP prevents noise and distortion induced by truncation errors of the commonly used 24-bit fixed-point devices. A complete set of parameters include I/O levels, delay,polarity, 6 bands of parametric EQ per channel, multiple crossover selections and full function limiters. The DX 4008 can be controlled or configured in real time on the panel or with the intuitive PC GUI accessed via the RS 232 interface. Software upgrade for CPU and DSP via PC keeps the device current with newly developed algorithms and function once available. Multiple setup storage and system security complete this professional package.
| Features |
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| The DX 4008 is a complete 4 input - 8 output digital loudspeaker management system designed for the touring or fixed sound installation markets | | Sampling rate can be set to 96kHz | | Precise frequency control is achieved with its 1 Hz resolution | | Inputs and outputs can be routed in multiple configuration to meet any requirements | | The DX 4008 is shipped with a special PC Graphic User Interface (GUI) application - XLink | | XLink gives the user an option to control the DX 4008 unit from a remote PC via the RS232 serial communication link | | The GUI application makes much easier control and monitor the device, allowing the user to get the whole picture on one screen | | Programs can be recalled and stored from/to PC's hard drive, thus expanding the storage to become virtuality limitless |
| INPUT AND OUTPUT SECTION |
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| Input Impendance: | >10 | kΩ | | Output Impendance: | 50 | Ω | | Maximum Level: | + 20 | dBu | | Type: | XLR 3 | Electronically balanced |
| AUDIO PERFORMANCE |
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| Frequency Response: | +/- 0.1 | dB (20 to 20 kHz) | | Dynamic Range: | 115 | dB typ (unweighted) | | CMMR: | > 60 | dB (50 to 10 kHz) | | Crosstalk: | | dB | | Distortion: | 0.001% | (1 kHz @ 18 dBu) |
| DIGITAL AUDIO PERFORMANCE |
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| Resolution: | 32 bit | (40-bit extended) | | Sampling Rate: | 48 / 96 | kHz | | A/D - D/A Converters: | 24 | bit | | Propagation Delay: | 3 | ms | | No. of Programs: | 30 | |
| FRONT PANEL CONTROL |
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| Display: | 4 x 26 | Character Backlit LCD | | Buttons: | 12 Mute Controls 12 Gain / Manu Controls 6 Menu Controls | | | “DATA" control: | (dial encoder) | Embedded Thumb Wheel | | Level Meters: | 5 | segment LED | | Interface | RS 232 | Female DB-9 |
| LIMITERS |
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| Threshold: | -20 to +20 | dBu | | Attack Time: | 0.3 to 100 | ms | | Release Time: | 2 to 32 | X the attack time |
| EQUALISATION |
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| Type: | Parametric, Hi-shelf, Lo-shelf | 6 per I/O | | Gain: | in 0.25dB steps | -30 to +15dB | | Bandwidth: | (Q=0.5 to 72) | 0.02 to 2.50 octaves |
| CROSSOVER FILTERS |
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| Filter Types: | Butterworth, Bessel, Linkwitz Riley | | | Slopes: | 6 to 24dB/oct (96kHz) | 6 to 48dB/oct (48kHz) |
| POWER REQUIREMENT |
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| Operating voltage: | 220÷240 / 110÷120 ~ 50 / 60 | V ~ Hz | | Power (consumption): | | mA | | Fuse model: | | | | Operating temperature range: | 0 ÷ +55 | °C | | Operating humidity: | 20 ÷ 90 | % RH non-condensing |
| PHISICAL SPECIFICATION |
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| Height: | 44 / 1.73 | mm/inch | | Width: | 483 / 19.01 | mm/inch | | Depth: | 203 / 7.99 | mm/inch | | Net Weight: | Kg/Lbs | 3 / 6.61 |
| SHIPPING INFORMATION |
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| Package height: | 80 / 3.14 | mm/inch | | Package width: | 615 / 24.2 | mm/inch | | Package depth: | 360 / 14.17 | mm/inch | | Shipping Weight: | 4.3 / 9.4 | Kg/Lbs |
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- 2 analog inputs and 6 analog outputs for maximum flexibility
- High-end 96 kHz converters for ultimate signal integrity and wide dynamic range (120 dB)
- Precise Dynamic EQs for level-dependent equalization and extremely musical Parametric EQs, selectable for all inputs and outputs
- Several types of EQs (LP/BP/HP) for each input and output
- “Zero“-attack Limiters on all output channels for optimal speaker protection
- Four different mono and stereo output operating modes
- Individual crossover filter types (Butterworth, Bessel and Linkwitz-Riley) with selectable roll-off characteristics from 6 to 48 dB/octave
- Adjustable Delays for all inputs and outputs—allow manual or automatic correction for room temperature, phase and arrival time differences
- 60 user-defined internal presets storable
- Servo-balanced, gold-plated XLR connectors for all inputs and outputs
- Internal switch-mode power supply for maximum flexibility (100 - 240 V~), noise-free audio, superior transient response plus low power consumption for energy saving
- High-quality components and exceptionally rugged construction ensure long life
- Conceived and designed by BEHRINGER Germany
| The DriveRack® PA2 provides all the processing you need between your mixer and amplifiers to optimize and protect your loudspeakers. With the latest advancements in dbx's proprietary AutoEQTM and AFSTM algorithms, a new input delay module for delaying the FOH system to the backline, Ethernet control via an Android®, iOS®, Mac®, or Windows® device, and updated Wizards, the DriveRack PA2 continues the DriveRack legacy of great-sounding, powerful, and affordable loudspeaker management processors, for a whole new generation.
Available Input Processing
- dbx Compression
- AFSTM (Advanced Feedback Suppression)
- Graphic EQ
- 8-Band Parametric EQ (adjusted when using the AutoEQ)
- Subharmonic Synthesis
Available Output Processing
- Crossover (supports full range, 2-way, and 3-way systems)
- 8-Band Parametric EQs (used for speaker tunings)
- dbx Limiting
- Driver Alignment Delays
| Input |
(2) line inputs. (1) RTA Mic input |
| Input Connectors |
(2) Female XLR line inputs. (1) Female XLR RTA Mic input |
| Input Type |
Electronically balanced/RF filtered |
| Input Impedance |
>50 kohm |
| A/D Converter |
dbx Type IVTM Conversion System |
| CMRR |
> 45dB |
| Mic Preamp Phantom Power |
+15VDC (RTA) |
| Mic Preamp Equivalent Input Noise (EIN) |
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| Output |
(6) Line Outputs |
| Output Connectors |
Male XLR |
| Output Type |
Electronically balanced, RF filtered |
| Output Impedance |
120 Ω |
| Max Output |
+20dBu |
| A/D Dynamic Range |
112 dB A-weighted, 110 dB unweighted |
| Type IV Dynamic Range |
123 dB with transient material, A-weighted, 22kHz BW; 121 dB with transient material, unweighted, 22kHz BW; 115 dB typical with program material, A-weighted, 22kHz BW |
| Input Delay Length |
100ms |
| Alignment Delay |
10ms per channel (60ms total) |
| Sample Rate |
48kHz |
| Dynamic Range |
>110 dB A-weighted, >107dB unweighted |
| THD+Noise |
0.003% typical at +4dBu, 1kHz, 0dB input gain |
| Frequency Response |
20Hz - 20kHz, +/- 0.5dB |
| Interchannel Crosstalk |
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| Operating Voltage |
100-120VAC 50/60 Hz - EU: 220-240 VAC 50/60 Hz |
| Power Consumption |
22 W |
| Unit Weight |
5.25 lbs. (2.4 kg) |
| Shipping Weight |
6.75 lbs. (3.1 kg) |
| Dimensions |
1.75" (H) x 5.75" (D) x 19" (W), 4.4cm (H) x 14.6cm (D) x 48.26cm (W) |
| D/A Dynamic Range |
112 dB A-weighted, 110dB unweighted |
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