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Starting in May 2003, the 4.24D has additional input and output parametric/shelf
filters, 48dB slope HPF and LPF options and increased security levels.
Four Inputs and Eight Outputs allow you to distribute audio from a variety of sources to multiple locations, the Protea System II 4.24D Digital Distribution System Processor has all the audio processing tools needed for precise crossover and sound control.
Each input allows you to control gain, six parametric, low or high shelf filters and the ability to assign any input to any output. In addition to setting crossover frequencies, each output allows you to program four parametric, low or high shelf filters, delay of up to 682ms, output gain, reverse polarity and a compressor/limiter for speaker protection.
All this is in one rack space with euroblock type input and output connections. Programming the Protea 4.24D is straight-forward using a PC and Ashly's Protea System Software (WindowsTM 95, 98, 2000, ME, XP and NT platforms). [click here to view the Protea System Software control configuration screen]
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| Power supply: |
100-240 V AC, 50/60 Hz
6 V DC 800 mA |
| Power connection: |
Mains input via Coaxial power connector (M) mounting version power supply cord with AC adapter (provided) |
| Frequency range: |
10 - 30000 Hz |
| THD: |
<0,005 % at 1 kHz |
| DSP: |
Digital signal processor |
| 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 - 5 ms |
| Dynamic range: |
Input: 114 dB
Output: 110 dB |
| Sample rate: |
67 kHz |
| Connections: |
Input: line via 2 x 3-pin XLR
Output: line via 6 x 3-pin XLR |
| Crossover frequency: |
20-20000 Hz |
| 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: 12,8 cm
Height: 4,45 cm |
| Weight: |
1,77 kg |
| Operating system: |
Win XP, Win Vista, Win 7, Win 10, OS X 10,5 or better |
| Behringer CX-3400 3-Way Stero/4-Way Mono Frequency Crossover with Limiters
The CX3400 is an active frequency crossover enabling 2 or 3-way stereo or even 4-way mono operation. Each band features two 24-dB Linkwitz-Riley filters, as well as individual IGC limiters, while the integrated delay enables flexible time alignment. Polarity switches for each output allow quick and easy runtime compensation for various driver and horn types.2
Respectively:
3-Way stereo or 4-way mono
24 dB / octave Linkwitz-Riley filter
Mono-Sub switchable
LF / HF gain regular / mutable
CD horn EQ switchable
Vertex frequency tunable
Factor switching (10x)
Multi-band limiter switch / variable (threshold)
Limit display each way
LF Delay (max 2ms / 60cm)
Phase reverse
25 Hz subsonic filter, sym
XLR in / out with multiband limiters
Dimensions: 19", 1U, 147 mm case depth
Weight: 1.7 kg |
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 |
|---|
| 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 |
|---|
| Input Impendance: | >10 | kΩ | | Output Impendance: | 50 | Ω | | Maximum Level: | + 20 | dBu | | Type: | XLR 3 | Electronically balanced |
| AUDIO PERFORMANCE |
|---|
| 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 |
|---|
| 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 |
|---|
| 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 |
|---|
| 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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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 |
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