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PA 250 S-DSC
Compact Amplifiers with DSP
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Special features
  • Automatic switch-on

  • Ethernet interface

  • 2 × 50 watts or 1 × 100 watts

  • VCA inputs per channel

  • Minimal dimensions

  • Stand-by contact

  • Silent running regulated fans

  • Optional 100 V transformer

  • Optional extern volume control (wall panel WP-V or rack panel RP-V)

  • Optional DV module for extern volume control via UP/DOWN contacts

  • 2-channel digital amplifier with integrated 2×2 DSP

Fields of application
  • Home audio
  • Media rooms
  • Conference rooms
  • Shops, sales rooms
  • Gastronomy
  • Clubs, discotheques
  • Concert halls, theatres
  • Churches
Description

The PA 250 S-DSC is a compact, remote controllable 2-channel digital amplifier with integrated DSP. With minimal dimensions the PA 250 S-DSC has a output power of 2 × 50 watts at 4 ohms, 2 × 40 watts at 8 ohms or 2 × 70 watts at 2 ohms. In bridge mode, it delivers output power of 1 × 140 watts at 4 or 8 ohms, guaranteeing excellent sound quality at all times. Single or multiple amplifiers in the PA S-DSC series can be connected via Ethernet, programmed using the DSC Control software and a PC, and operated using a media control system.

In addition to the 2 × 2 mixer matrix, the DSP also offers ten fully parametric filters, a delay of up to 10 ms, and compressors and limiters for each input and output. Up to 100 presets can be stored permanently. We can also preconfigure project-specific settings on request. The integrated limiters guarantee stable, distortion-free operation even with low load impedances.

The amplifiers are equipped with an automatic switch-on function, an ON/Stand-by contact and VCA inputs for external volume control.The amplifiers can be controlled individually or in groups using the WP-V and RP-V volume controllers or the DV module and UP/DOWN contacts. Up to 4 compact amplifiers can be mounted in 19” racks in a single height unit (in PA-T 1U).

Technical data
Inputs 2 × line IN sym. (pluggable screw-type terminals)
Nom. input 0 dBU
Max. input + 6 dBU
Input impedance 20 kohms
Load impedance ≥ 2 ohms / bridge ≥ 4 ohms
Outputs 2 × speaker out up to 2 × 2.5 mm², (pluggable screw-type terminals)
Output power
4 ohms
8 ohms
2 ohms
Bridge

2 × 50 watts
2 × 40 watts
2 × 70 watts
140 watts (4 or 8 ohms)
Frequency range 10 Hz – 22 kHz (-3 dB)
THD < 0,05 % (1 kHz, 3 dB at full power)
Dynamic range > 100 dB
DSP 24 Bit, 48 kHz
Functions 2×2 mixer matrix, 10 parametric filters for each input/output: bell, high shelf, low shelf, notch, all-pass, band-pass, high-pass, low-pass. Delay up to 10 ms, limiter and compressor for each input/output, 100 presets
Software (inclusive) DSC Control – Download from our Website – www.lb-lautsprecher.de/Download-DSC-Control-Software
Interface Ethernet
Automatic switch-on ON if NF signal is present, OFF (stand-by) after more than approx. 5 min. without signal, Auto-ON/Steady-ON selectable per DIP-switch
Controls Power switch, dual-LED SLEEP/ ON at front, DIP-switches at back: Auto-ON/Steady-ON, Ground-Lift
Additional connectors VCA inputs 0 – 10 V for each channel (also for DV-modules), floating fault contact (N/O), Standby contact (N/O or N/C)
Cooling Silent running regulated fans
Protective circuits Short circuit and overtemperature protection, inrush current limiter. Peak limiter, current limiter and power limiter for each speaker output
Power supply 230 VAC
Mains connector IEC connector
Power consumption
Standby
Idle
⅛ th power
Maximum


5 watts
10 watts
25 watts
60 watts
Dimensions
(W×H×D)
¼ 19", 1 U, 110 × 43 × 242 mm
Fixing Mounting bracket (included in delivery)
Weight 1.8 kg
Warranty 5 years
Downloads
Data sheet (PDF)
Manual
 
Accessories

WP-V
RP-V

Wall-Panel (volume + mute)
Rack-Panel (volume + mute)

DV module

Digitale module for volume control via UP/DOWN contact

PA-T 2050

Stereo 100 V transformer, 2 × 50 watts toroidal core

PA-T 1 U

Rack cradle 19", 1U for 4 × PA 250 S-DSC or PA-T 2050

Add-on modules
Eingänge 2 × Line In sym.