LD Systems DS21 19″ DSP Controller 3-channel

Discontinued

230.00 incl. GR VAT

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The LD DS2.1 is a universal 3-channel DSP controller for 2.1 loudspeaker systems with 24-bit processing and convenient front panel operation providing easy setup and high quality audio performance. Designed for live sound and fixed applications the rack mountable unit offers extensive parameter control of its EQ, crossover, delay and limiter functions. The LD DS2.1 […]

 

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The LD DS2.1 is a universal 3-channel DSP controller for 2.1 loudspeaker systems with 24-bit processing and convenient front panel operation providing easy setup and high quality audio performance.

Designed for live sound and fixed applications the rack mountable unit offers extensive parameter control of its EQ, crossover, delay and limiter functions. The LD DS2.1 features a 3-band parametric EQ with adjustable Q and high shelf / low shelf selection. The crossover includes Butterworth, Bessel and Linkwitz-Riley filters with 6 dB to 24 dB slopes. Delay time is adjustable to a maximum of 12.5 ms for each of the three outputs and the limiter provides independent threshold and hold time setting for the L / R and subwoofer channels.

A backlit 2 x 16 LCD and jog wheel allow for quick parameter adjustment and recall of up to 6 presets. Also provides real time level meter. The rear panel features XLR connectors for left and right input, left and right plus sub XLR outputs and a USB port. Software and a power cord is included.

Product type
Signal Processors


Type
3-channel


Version
3-channel


AD/DA converter
24 bit


Sampling frequency
48 kHz


Frequency response
20 – 20.000 Hz


Filter type
Bessel , Butterworth , Linkwitz-Riley


Delay
max. 12.5 mS


Filter slew rate
12 dB/oct , 18 dB/oct , 24 dB/oct , 6 dB/oct


Dynamic range
> 100 dB


Signal-to-noise ratio
87 dB


THD
0.005 %


Crosstalk
> 80 dB


Max. input level
+ 13 dBu


Max. output level
+ 13 dBu


Input impedance (kOhms)
22 kOhm


Output impedance
300 Ohm(s)


Controls
Edit , Parameter , Power , Recall


Indicators
multifunction LC display


Line inputs
2


Line input connectors
XLR


Line outputs
3


Line output connectors
XLR (balanced)


Interfaces
USB


Mains connector
IEC socket


Operating voltage
90 V AC – 250 V AC, 50 – 60 Hz


Width
482 mm


Height
44.5 mm


Depth
160 mm


Weight
1,8 kg

Weight 1.99 kg

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Quick Comparison

LD Systems DS21 19" DSP Controller 3-channel removeDBX ZONEPRO 640 DIGITAL ZONE PROCESSOR removeDBX 234XS Stereo 2-Way Mono 3-Way Crossover removeBEHRINGER DCX2496 PRO Ultra High-Precision Digital 24-Bit-96 kHz Loudspeaker Management System removeOMNITRONIC DXO-48E Digital Controller - stereo active crossover 4 inputs - 8 outputs, incl. software removeDBX VENU360 Digital speaker processor 3 IN x 6 OUT remove
NameLD Systems DS21 19" DSP Controller 3-channel removeDBX ZONEPRO 640 DIGITAL ZONE PROCESSOR removeDBX 234XS Stereo 2-Way Mono 3-Way Crossover removeBEHRINGER DCX2496 PRO Ultra High-Precision Digital 24-Bit-96 kHz Loudspeaker Management System removeOMNITRONIC DXO-48E Digital Controller - stereo active crossover 4 inputs - 8 outputs, incl. software removeDBX VENU360 Digital speaker processor 3 IN x 6 OUT remove
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SKULDDS21DBX ZONEPRO 640DBX 234XSE005260DXO-48EDBX VENU360
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Price 230.00 incl. GR VAT 782.00 incl. GR VAT 306.06 incl. GR VAT 395.00 incl. GR VAT 590.00 incl. GR VAT 1,154.00 incl. GR VAT
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Description
  • Flexible routing configurations for all standard mono and stereo output operating modes
  • 4 analog inputs and 8 analog outputs (XLR)
  • Active frequency filter types (Bessel, Butterworth and Linkwitz-Riley) with slopes up to 24 dB/octave split up the audio signal into different frequency bands
  • Incl. software editor (for PC and Mac) for remote control via computer through USB interface: store, transfer, and manage your presets
  • Up to 30 user presets storable in the device via software
Content

The LD DS2.1 is a universal 3-channel DSP controller for 2.1 loudspeaker systems with 24-bit processing and convenient front panel operation providing easy setup and high quality audio performance.

Designed for live sound and fixed applications the rack mountable unit offers extensive parameter control of its EQ, crossover, delay and limiter functions. The LD DS2.1 features a 3-band parametric EQ with adjustable Q and high shelf / low shelf selection. The crossover includes Butterworth, Bessel and Linkwitz-Riley filters with 6 dB to 24 dB slopes. Delay time is adjustable to a maximum of 12.5 ms for each of the three outputs and the limiter provides independent threshold and hold time setting for the L / R and subwoofer channels.

A backlit 2 x 16 LCD and jog wheel allow for quick parameter adjustment and recall of up to 6 presets. Also provides real time level meter. The rear panel features XLR connectors for left and right input, left and right plus sub XLR outputs and a USB port. Software and a power cord is included.

Product type Signal Processors
Type 3-channel
Version 3-channel
AD/DA converter 24 bit
Sampling frequency 48 kHz
Frequency response 20 - 20.000 Hz
Filter type Bessel , Butterworth , Linkwitz-Riley
Delay max. 12.5 mS
Filter slew rate 12 dB/oct , 18 dB/oct , 24 dB/oct , 6 dB/oct
Dynamic range > 100 dB
Signal-to-noise ratio 87 dB
THD 0.005 %
Crosstalk > 80 dB
Max. input level + 13 dBu
Max. output level + 13 dBu
Input impedance (kOhms) 22 kOhm
Output impedance 300 Ohm(s)
Controls Edit , Parameter , Power , Recall
Indicators multifunction LC display
Line inputs 2
Line input connectors XLR
Line outputs 3
Line output connectors XLR (balanced)
Interfaces USB
Mains connector IEC socket
Operating voltage 90 V AC - 250 V AC, 50 - 60 Hz
Width 482 mm
Height 44.5 mm
Depth 160 mm
Weight 1,8 kg

With 6 inputs and 4 outputs the dbx ZonePro? 640 and 641 provide flexible signal routing,
powerful DSP processing and multiple control interfaces for Commercial Audio applications.
Designed to offer superior system sonic performance and flexibility, the 640/641 deliver the
highest quality tools available. Even the input and outputs connectors were chosen for their
standard usage and reliability. The ZonePro products offer Euroblock connectors for balanced
signals and RCA connectors for interfacing with consumer equipment often used in commercial
applications; there is also a simple analog input buss that allows inputs to be sent from one
unit to the next for unit and job scalability. The 640 and 641 provide every necessary processing
tool, from the input processing like gain control and EQ available on all inputs to highly sophisticated
and specific functions such as selectable paging microphone processing including Gating,
De-Essing, Auto Gain Control, Compression and Feedback Suppression. The heart of the
ZonePro products is the Routing module that provides of course Primary Source Selection
but also Source Ducking for Paging and Priority Override. The outputs also offer a wealth of
processing designed for commercial applications like our patent-pending AutoWarmth? function
that was co-developed with JBL to provide natural low frequency extension at any signal level.
Each output also offers EQ, Bandpass and Crossover filters, Limiting and Delay for system
optimization. With the ZonePro? every tool is at your disposal to maximize the response of
your system.
Beyond processing, the ZonePro? products offer multiple forms of control to further extend the
versatility of your system. From easy-to-use wall panel Zone Controllers for standard end-user
functions like source select and volume control to advanced system control including a built-in
Real Time Clock that can provide programmable system changes throughout the day or week.
For system setup and monitoring the ZonePro Designer software provides an intuitive interface
and a speedy setup Wizard for configuring and editing all system parameters.

The ZonePro? 640 and 641 will take your Commercial Audio system to the next level with advanced
processing, versatility and control.

? Advanced Feedback Suppression (AFS?)
? Autowarmth?
? Auto Gain Control
? Compression
? Limiting
? Noise Gating
? Notch Filtering
? Bandpass and Crossover Filters
? Parametric EQ
? Security Lockout
? Wall Panel Control
? RS-232 Control
? Windows? 2000 and XP GUI
? IEC, UL and CSA Approvals

More sound to your amps and speakers The secret to making speakers sound great lies with the crossover you use. With the dbx® 234xs 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 234xs 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 234xs 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 234xs 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. XLR balanced ins and outs Mode switches for mono 4-way or stereo 2-way/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
Input Connectors XLR
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), >93dB (Mid Output), >90dB (High Output)
Signal-to-Noise (Mono Mode) >94dB (Low Output, Low/Mid Output); >92dB (High/Mid Output); >88dB (High Output)
Dynamic Range > 106 dB, unweighted, any output
THD+Noise
Interchannel Crosstalk
Crossover Frequencies (Stereo Mode) Low/Mid: 45 to 960 Hz or 450 Hz to 9.6 kHz (x10 setting); Low/High: 45 to 960 Hz or 450 Hz to 9.6 kHz (x10 setting); Mid/High 450Hz to 9.6kHz (x10 setting)
Crossover Frequencies (Mono Mode) Low/Low-Mid: 45 to 960 Hz or 450 Hz to 9.6 kHz (x10 setting); Low-Mid/High-Mid: 450 Hz to 9.6 kHz; High-Mid/High: 450 Hz to 9.6 kHz
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 2/3/4-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 100-120 VAC 50/60Hz; 120 VAC 60Hz 230 VAC 50/60Hz
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 4.0 lbs. (1.8 kg)
Shipping Weight 5.8 lbs. (2.6 kg)
 
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)

Digital stereo active crossover with 4 inputs and 8 outputs, incl. software .

  • Flexible routing configurations for all standard mono and stereo output operating modes
  • 4 analog inputs and 8 analog outputs (XLR)
  • Active frequency filter types (Bessel, Butterworth and Linkwitz-Riley) with slopes up to 24 dB/octave split up the audio signal into different frequency bands
  • Incl. software editor (for PC and Mac) for remote control via computer through USB interface: store, transfer, and manage your presets
  • Up to 30 user presets storable in the device via software
  • 5 menu languages selectable (German, English, French, Spanish, Dutch)
  • Alphanumeric LCD screen with 2 lines of 16 characters each
  • Input sensitivity digitally adjustable
  • Inputs and outputs with 4-digit LED level meter as well as clip and limit LED indicator
  • Mute switch with LED indicator per output
  • 7-band parametric EQ per output
  • Up to 7 ms signal delay adjustable for the outputs
  • Output limiter with adjustable limits and automatic attack and release settings as overload protection for your amplifying system
  • Switchable phase
  • Lock function for prevents undesired changes to settings
  • Rack installation, 1 U
  • Windows XP, Vista, 7, 10 and Mac OS X 10.5.8 and better
  • Digital signal processor
  • The device can be connected via USB to the PC in connection with DXO Software The firmware can be updated via the PC connection
  • (19") 48.3 cm rack installation 1 U
Power supply: 100-240 V AC, 50/60 Hz 6 V DC 800 mA
Power connection: Mains input via Coaxial power connector (M) power supply cord with AC adapter (provided)
Frequency range: 10 - 22000 Hz
THD: <0,005 % at 1 kHz
DSP: Digital signal processor
Crossover frequency: 20-20000 Hz
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 - 7 ms
Dynamic range: Input: 114 dB Output: 110 dB
Sample rate: 48 kHz
Connections: Input: line via 4 x 3-pin XLR Output: line via 8 x 3-pin XLR
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: 22,3 cm Height: 4,45 cm
Weight: 1,90 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.

Weight1.99 kg4.00 kg2.60 kg3.00 kg2.25 kg2.00 kg
DimensionsN/AN/AN/AN/A52.5 × 25 × 8 cmN/A
Additional information
Weight 1.99 kg
Weight 4.00 kg
Weight 2.60 kg
Weight 3.00 kg
Weight 2.25 kg
Dimensions 52.5 × 25 × 8 cm
Weight 2.00 kg