LD Systems DS 21 DSP Controller

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LD Systems DS 21 DSP Controller


  • 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.

Also known as: DS21, DS-21

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€ 197,94
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  • 3-way 24-bit speaker processor.
  • For connection of right and left signal and subwoofer.
  • Filter types: Bessel, Butterworth and Linkwitz-Riley.
  • Controls equalizer, limiter, crossover frequency and delay.
  • Power cable, USB cable and software included.


Model/Product no.: LDS-LDDS21
EAN: 4049521070389
Product number: LDDS21
Product type: DSP controller
Type: digital, 3-channel
AD/DA converter: 24
Sampling frequency: 48
Frequency response: 20 - 20,000Hz
Filter type: Bessel, Linkwitz-Riley, Butterworth
Filter slew rate: 12, 6, 18, 24
Dynamic range: > 100dB
Signal-to-noise ratio: 87dB
THD: 0,005 %
Crosstalk: > 80dB
Max. input level: + 13
Max. output level: + 13
Input impedance (kOhms): 22
Output impedance: 300Ohm(s)
Controls: Parameter, Edit, Power, Recall
Display: 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: 482mm
Height: 44,5mm
Depth: 160mm
Weight: 1,8kg