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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 |
- 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
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Providing 48-bit filter algorithms, 24-bit AD/DA conversion and a dynamic range of 115 dB, the DSP 244 sets new standards for digital loudspeaker controllers and processors. The DSP 244 is an universal Digital Sound System Processor that provides 2 inputs and 4 outputs; plus internal summing of the inputs 1 and 2. Via matrix it is possible to assign the outputs to any input or to the sum of the inputs. It is further possible to establish the following configurations: Stereo or Dual 2-Way systems, 3-Way + Direct and 4-Way systems, each with Mono Subchannel, but also full range systems. High and low-pass filters are provided for the frequency crossover functions in all operation modes. The selection includes Linkwitz-Riley, Butterworth and Bessel type filters with switchable slopes between 6, 12, 18 and 24 dB/oct. A huge number of additional filters offers extremely flexible correction of the frequency response. Each input incorporates a 5-band equalizer, allowing to assign high and low-pass, high and low-shelving or parametric peak-dip filters to its individual filter sections. Next to the frequency crossover filters, four additional filters are employed in each output channel, which also can be set to work as high or low-pass, high or low-shelving filters, parametric peak-dip filters, or all-pass filters. Additional filtering is provided through 2. order high-passes for the realization of B-6 alignment, or special LPN-filters (Low-Pass Notch filters) for correcting the frequency and phase responses of optimally vented woofer cabinets. Each channel additionally provides a delay, a polarity switch, a programmable level control and a digital compressor / limiter while the master delays are located in the input channels. Datasheets / ManualsBrochure (309KB)
Mains voltage 90 - 250 V AC / 50 - 60 Hz Power consumption 20 watts Safety class I Inputs 2 x XLR IN, electronically balanced, transformer optional available 2 x XLR OUT (Direct Out) Input voltage (nominal) 1.55 V / + 6 dBu Max. input voltage 24.5 V / + 30 dBu Input impedance 20 kohms Common mode rejection > 40 dB AD-conversion 24-bit, Sigma-Delta, 128 times oversampling, linear phase Outputs 4 x XLR OUT, electronically balanced Output voltage (nominal) 1.55 V / + 6 dBu Max. output voltage 8.7 V / + 21 dBu Output impedance | Crossover 2-Way stereo or 3-way mono mode Additional subwoofer output Linkwitz-Riley filter with 24 dB / octave Sub-woofer frequency range separately adjustable Individual output gain controls and output mute switch for all bands 2 Balanced XLR inputs with gold-plated contacts 5 Balanced XLR outputs with gold-plated contacts Switchable 25 Hz low-cut filter to protect loudspeakers from infrasound Easy-to-read status LEDs Built-in power supply 100-240V, 50-60 Hz Dimensions (H x W x D): 44 x 483 x 147 mm Weight: 1.6 kg | Overview
More sound to your amps and speakers
The secret to making speakers sound great lies with the crossover you use. With the dbx® 223xs Crossover you\'ll get great performance, ultra low-noise, rugged reliability and four decades of dbx knowledge and expertise in building the world\'s finest processors. The 223xs uses precision filters to separate the audio signal and direct the correct frequencies to your loudspeaker drivers. By directing only the specific frequency bands to each speaker driver the 223xs leaves your amplifiers free to use their full power on the usable signal eliminating distortion and giving your PA system a cleaner and better sound.
The dbx 223xs is a dual channel crossover with all the features you would expect from a professional product. It features Linkwitz-Riley 24dB per octave filters, independent output gain controls for level matching, output phase inversion, 40 Hz low cut filter, and optional mono summing of the low frequency (subwoofer) output. Everything in the design exudes great precision from the solid "click" controls to the high quality XLR inputs and outputs
Features
- XLR balanced ins and outs
- Mode switch for stereo 2-way or mono 3-way operation
- Low frequency summed (subwoofer) output
- x10 range switch on both channels
- 40Hz high pass (low cut) filter both channels
- Phase reverse switch on all outputs
- Individual level controls on all outputs
- 24dB per octave Linkwitz-Riley filters (the professional standard)
- Stereo/Mono status LEDs indicate the selected mode
- dbx® 2 year parts and labor as standard
- CSA NRTL/C approved
- CE compliant
Specifications
Input Connectors |
XLR (pin 2 hot) |
Input Type |
Electronically balanced/unbalanced, RF filtered |
Input Impedance |
Balanced >50k ohm, unbalanced >25k ohm |
Max Input |
>+22dBu balanced or unbalanced |
CMRR |
>40dB, typically >55dB at 1kHz |
Output Connectors |
XLR |
Output Type |
Impedance-balanaced/unbalanced, RF filtered |
Output Impedance |
Balanced 200 ohm, unbalanced 100 ohm |
Max Output |
>+21dBu balanced/unbalanced into 2k ohms or greater |
Bandwidth |
20Hz to 20kHz, +/-0.5dB |
Frequency Response |
90 kHz, +0/-3 dB |
Signal to Noise Ratio |
Ref: +4 dBu, 22 kHz measurement bandwidth |
Signal-to-Noise (Stereo Mode) |
>94dB (Low Output), >91dB (High Output) |
Signal-to-Noise (Mono Mode) |
>94dB (Low Output), >93dB (Mid Output), >91dB (High Output) |
Dynamic Range |
> 106 dB, unweighted, any output |
THD+Noise |
< 0.004% at +4 dBu, 1 kHz; < 0.04% at +20 dBu, 1 kHz |
Interchannel Crosstalk |
< -80 dB, 20 Hz to 20 kHz |
Crossover Frequencies (Stereo Mode) |
Low/High: 45 to 960 Hz or 450 Hz to 9.6 kHz (x10 setting) |
Crossover Frequencies (Mono Mode) |
Low/Mid: 45 to 960 Hz or 450 Hz to 9.6 kHz (x10 setting); Mid/High: 45 to 960 Hz or 450 Hz to 9.6 kHz (x10 setting) |
Crossover Filter Type |
Linkwitz-Riley, 24 dB/octave, state-variable |
Low cut Switch |
Activates 40 Hz Butterworth, 12 dB/octave high-pass filter, one switch per channel. |
Phase Invert Switch |
Inverts the phase at the output, one switch per output. |
x1 / x10 Switch |
Multiplies the low-high(mono: low/mid and high/mid) crossover frequency range of the front-panel markings by a factor of 1 or 10, one switch per channel. |
Mode Switch |
Selects stereo/mono and 2/3-way operation |
LF Sum Switch |
Selects normal (stereo) or mono-summed low frequency operation and disables Ch 2ʼs low output phase invert LED to indicate that this output is not operational in the LF sum mode. |
Indicators |
Stereo Operation (Green); Mono Operation (Yellow); Low Cut (Red-per channel); x10 (Green-per channel); Phase Invert (Red-per output) |
Operating Voltage |
100 VAC 50/60 Hz; 120 VAC 60 Hz 230 VAC50 HZ |
Operating Temperature |
32°F to 113°F (0°C to 45°C) |
Power Consumption |
15W |
Power Connector |
IEC receptacle |
Dimensions |
1.75" H X 19" W X 6.9" D (4.4cm x 48.3cm x 17.5cm) |
Unit Weight |
3.7 lbs. (1.7 kg) |
Shipping Weight |
5.4 lbs. (2.5 kg) |
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Lab Gruppen NLB 60E
The NomadLink network provides remote monitoring, control and power sequencing functions for multiple C Series or FP+ amplifiers. Indeed up to 16 NLB 60E network bridges, each monitoring up to 60 amplifiers may be accommodated in one system. Easy setup, redundancy, and minimum maintenance were bywords when developing this network format.
NomadLink is a closed-loop, daisy-chained network topology with the NLB 60E providing the bridge to the familiar world of Ethernet/LAN. NomadLink reduces installation time and cost significantly, includes redundancy during operation by design and simplifies the location of faults or system abuse.
NomadLink together with the associated DeviceControl software allows the subnets’ architecture to be automatically uploaded even without individual IP addresses in the amplifiers. All in all, it is the fastest and easiest monitoring and control network on the market today.
Specifications:
Network Connectors:
* Nomadlink Out: EtherCon housed RJ45
* Nomadlink In: EtherCon housed RJ45
* Ethernet rear-panel: EtherCon housed RJ45
* Ethernet front-panel: Standard RJ45
General Purpose Inputs (GPI):
* One Voltage sensing input: Two pole Phoenix
* Two contact closure inptus: Two pole Phoenix
Front Panel Indicators:
* Front operation locked: Yellow LED
* Fault warning: Red LED
* Amplifier subnet muted: Red LED
* NomadLink network connected/activity: Blue LED
* Ethernet connected: Orange LED
* Ethernet Activity: Yellow LED
2 x 16 Character display: White text, Blue background
Navigation and Adjust keys: Yes, x 6
Subnet Power on/off keys: Yes, x 2
Power: 100 to 240 VAC, 50 to 60 Hz (auto-select)
Power consumption:
Finish: Anodized aluminum front, Plated and painted steel chassis
Approvals: CE, CSA
Dimensions (W x H x D): 19" x 1.73" x 8.2" (483 x 44 x 208 mm), 1 RU
Weight: 5 lbs. (2.25 kg)
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