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The XR-Series crossovers are the product of an intensive research effort started in 1972 which combined a reexamination of traditional crossover theory with practical field use. Over the years, a number of refinements and new models have been added to our crossover series, but the original design goals have remained the same: to produce a crossover which is sonically accurate, is flexible enough to suit a wide variety of systems, and affords maximum protection for speakers and drivers.
All Ashly crossovers are based upon the same powerful state-variable filter circuit, which guarantees that two adjacent frequency band outputs always remain in phase. Our crossovers offer a number of useful and unusual features, including continuous tuning, a response control, and a unique output stage which maintains low noise at any level setting. These models also include a 200:1 tuning range, output mute switches, and both TRS and XLR connectors. Like other Ashly products, your crossover features low noise and distortion, active balanced inputs, a peak level indicator, a precision regulated power supply, protection against abnormal input or output conditions, and rugged mechanical construction. Conservative design and an unusually thorough procedure for quality control have earned Ashly a reputation for dependability in the recording, sound reinforcement, and broadcast fields.
Response Control an Ashly Exclusive...
This control, found adjacent to the crossover frequency control, adjusts the damping of the filter affecting the response shape of the filters at the crossover point. The dial calibrations refer to the amount of attenuation effected by the filter at the crossover frequency, i.e., a setting of 3dB means that the filter's high-pass and low-pass outputs are each "rolled off 3dB at the crossover point“. This describes Butterworth filter response, or a gentle 3dB peak at the crossover point when the two filter output signals overlap. To obtain a flat signal, or "Linkowitz-Riley" response through the crossover region, set the Response control to "6“. This attenuates each output of the filter by 6dB at the crossover point (two identical signals added together yield a +6dB increase). To obtain a notch at the crossover point, turn down the response control past "6" to best suit your needs.
The purpose of this control is to help offset the inaccuracies inherent in typical loudspeakers, thereby helping you to achieve a flat system response. NOTE: The Response control is not a "slope" control. A 24dB/octave crossover will always have a slope of 24dB/octave. The Response control only affects filter response shape in the immediate vicinity of the crossover frequency; the ultimate crossover slope is a fixed parameter.
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24dB/Octave Slopes |
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Variable Filter Response Allows Tuning-In Linkwitz-Riley or Other Filters |
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Output Mute Switches |
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Balanced Inputs and Outputs |
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20Hz Third Order High Pass Filter |
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XLR and 1/4" TRS Audio Connections |
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Peak Overload Warning LEDs |
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Five Year Warranty | | Behringer DCX2496 Overview
The DCX2496 ULTRADRIVE PRO from Behringer is a digital loudspeaker management system, that provides excellent audio quality, along with a comprehensive feature list. It allows for precise set-up of multiple loudspeaker arrays, suitable for live sound, fixed installations that require control of loudspeaker systems, and other contractor-installed applications.
Each of the three-inputs and six-outputs have fixed processing blocks, including gain, delay, EQ and dynamic EQ on the input channels, and gain, crossover, EQs, limiter and delays on the output side. One of the inputs can accept a stereo AES/EBU digital signal. An integrated sample rate converter assists in accepting various sample rates. Additionally, an internal input-sum signal is easily set-up.
Four different mono and stereo output operating modes are available, all with individual crossover filter types with selectable roll-off characteristics. Input and output delays allow for time adjusting signals to compensate for ambient temperature changes or for adjusting arrival time differences for individual speaker clusters. EQs can be used for both musical enhancement or for level-dependent equalization. Brick-wall limiters guarantee speaker protection.
Remote control of one or several units can be accomplished utilizing downloadable software for a Windows based computer. Set-ups can be saved to the software, or to an optional PCMCIA card for the ultimate in portability. Servo-balanced, gold-plated XLR connectors for all inputs and outputs guarantee excellent connectivity.
- Three-input, six-output loudspeaker management system
- Four different mono- and stereo-output operating modes
- Individual crossover filter types including Butterworth, Bessel and Linkwitz-Riley, with selectable roll-off characteristics from 6dB to 48dB per octave
- Choice of high-, band- and low-pass filters for each input and output
- Dynamic EQ for level-dependent equalization and parametric EQ selectable for each channel
- “Zero" attack limiters on all output channels for optimal signal protection
- Automatic or manual-adjustable delays for all inputs and outputs allow for adjustment due to room temperature, phase and arrival time differences
- Link option via RS-485 network interface allows for linking multiple units for larger installation requirements
- Downloadable software enables single- or multiple-unit remote control utilizing a Windows based computer
- Sixty user-defined internal presets can bestored via software or on a PCMCIA card
- Internal universal power supply allows the unit to operate virtually anywhere
| Frequency Response |
10Hz to 35kHz, -1dB |
| Dynamic Range |
109dB |
| Input Connections |
3 x XLR |
| Output Connections |
6 x XLR |
| Input Impedance |
20kΩ @ 1kHz |
| Output Impedance |
160Ω @ 1kHz |
| Maximum Input Level |
+22dBu |
| Maximum Output Level |
+22dBu |
| Sample Rate |
32kHz to 96kHz |
| RTA Mic Phantom Voltage |
+15V |
| Crosstalk (Main Outputs) |
-100dB @ 10dBu In |
| THD & Noise |
0.007% @ 0dBu In |
| Dimensions |
19" x 8.5 x 1.75" (483 x 217 x 45mm) |
| Weight |
6.6 lbs (3 kg) |
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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 | Advanced Feedback Suppression Processor with Full LCD Display
The AFS2 Dual-Channel Advanced Feedback Suppression Processor from DBX protects your ears and audio equipment from annoying and potentially damaging audio feedback without altering your sound. The AFS2 features application-specific filter types for speech, music low, music medium, and music high. The 24 fixed or live narrow-band notch filters are capable of removing frequencies at 1/80 of an octave, ensuring an optimal frequency response without the possibility of feedback.
The front panel features the wizard function to take the guesswork out of setting up any room by incorporating an advanced feedback suppression module and providing a full LCD display for system settings and menus. Additionally, the AFS2 offers a five-segment LED for accurately monitoring input levels for each channel, while the notch filter indicator allows you to monitor the number of filters applied. Dedicated bypass buttons are included to help isolate problem channels. The rear panel offers XLR and 1/4" inputs and outputs, both switchable between +4 and -10 dB operations. A USB port has been provided for firmware updates. The AFS2 ships with a standard IEC power cable.
| Number of Channels |
2 |
| Inputs |
Connectors: Female XLR and 1/4" TRS
Type: Electronically balanced and unbalanced, RF filtered
Impedance: Balanced 50 kohm, unbalanced 25 kohm
Max Line Level: +20 dBu |
| Input CMRR |
>40 dB, typically >55dB @ 1 kHz |
| Outputs |
Connectors: Male XLR and 1/4" TRS
Type: Electronically balanced and unbalanced, RF filtered
Impedance: Balanced >120 ohms, unbalanced >60 ohms
Max Level: +20 dBu |
| A/D/A Converter |
A/D Converter: DBX type IV conversion system
A/D Dynamic Range: >113 dB A-weighted, >110 dB, unweighted, 22 kHz BW
Type IV Dynamic Range: >119 dB, A-weighted, 22 kHz BW; >117 dB, unweighted, 22 kHz BW
A/D Conversion: 24-bit
Sample Rate: 48 kHz
D/A Dynamic Range: 112 dB A-weighted, 109 dB unweighted
D/A Conversion: 24-bit |
| Dynamic Range |
109 dB A-weighted, 106 dB unweighted, 22 kHz BW |
| THD + Noise |
0.003% typical at +4 dBu, 1 kHz |
| Frequency Response |
20 Hz to 20 kHz, ±0.5dB |
| Crosstalk |
Interchannel Crosstalk: >80 dB typical
Crosstalk Input to Output: >80 dB |
| Power |
US: 100 to 120 VAC 60 Hz
EU: 220 to 240 VAC 50 Hz
9 W |
| Dimensions (HxDxW) |
1.8 x 5.8 x 19.0" / 4.4 x 14.6 x 48.3 cm |
| Weight |
4.5 lb / 2.0 kg |
| 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 |
The VENU360 provides all the processing and flexibility you need between your mixer and amplifiers to optimize and protect your loudspeakers. With the latest advancements in dbxʼs proprietary AutoEQ and AFS algorithms, additional input channels, ethernet control via an Android, iOS, Mac, or Windows device, and updated wizards, the DriveRack VENU360 continues the DriveRack legacy of great-sounding, powerful, and affordable loudspeaker management processors, for a whole new generation. |
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