Skip to main content

PA-S 250 DSC / PA-S 250 DSC DANTE
Compact Amplifiers with DSP
new

 
Special features
  • Remote controllable 2-Channel amplifier with 4 x 2 DSP-Matrix

  • Output power 2 × 50 watts at 2-4 ohms,
    2 × 30 watts at 8 ohms

  • Symmetrical inputs, Cinch inputs

  • Optical SPDIF input (PA-S 250 DSC)

  • DANTE interface (PA-S 250 DSC DANTE)

  • VCA inputs per channel

  • Auto-On/Off switchable

  • Ext. On/Off contact

  • Switchable input Sensitivity +4/-6 dBU per channel

  • Ethernet interface

  • Configuration with LB AUDIO CONTROL App

  • Controllable via network commands
  • Fanless
  • Switchable Ground Lift
  • Chassis ¼ 19“, 1 U
  • Optional:
  • 100 V transformers
  • Volume control (wall-panel WP-V or rack-panel RP-V)
  • DV module for volume control via Up/Down contacts
Fields of application
  • Home audio
  • Media rooms
  • Conference rooms
  • Shops, sales rooms
  • Gastronomy
  • Concert halls, theatres
  • Churches
Description

The PA-S 250 DSC is a sophisticated 2-Channel amplifier with integrated DSP matrix, analog inputs and an optical SPDIF input. The model PA-S 250 DSC DANTE is equipped with a 2-channel DANTE interface instead of the SPDIF input. The amplifiers are configurable with our browser-based LB AUDIO CONTROL app and are operated with network commands via media control systems. The DSP is implemented as a 4 x 2 mixer matrix and offers ten fully parametric filters, high-pass and low-pass filters, a delay of up to 400 ms, and compressors and limiters for each input and output channel. The amplifiers are designed to ensure outstanding sound quality and operational reliability with minimal power consumption. The Auto On/Off function automatically switches the amplifier to energy-saving SLEEP mode if no input signal is detected. The PA-S 250 DSC has an output rating of 2 x 50 watts at  2 – 4 ohms or 2 x 30 watts at 8 ohms. It is equipped with both cinch inputs and symmetrical inputs. The PA-S 250 DSC also has an optical SPDIF input with TOSLINK terminal, and the PA-S 250 DSC DANTE has a second network terminal for digital audio transmission via Ethernet. A ground lift switch and DIP switches for changing input sensitivity enable optimum adaption to different signal sources. The amplifiers feature an On/Off contact and VCA inputs for external volume control. This can be done via the WP-V and RP-V volume controllers, or via the DV module and Up/Down contacts.

Technical data
Inputs analog/digital
PA-S DSC

PA-S DSC DANTE

2 × Line In sym. + 2 × Line In Cinch, optical SPDIF input
2 × Line In sym. + 2 × Line In Cinch, 2 channel DANTE interface
Nom. input level + 4/-6 dBU, switchable
Max. input level + 10 dBU
Input impedance 20 kOhms
Load impedance ≥ 2 Ohms
Outputs 2 × Speaker Out up to 2 × 2,5 mm², (screwtype terminals, pluggable)
Output power
2 Ohms
4 Ohms
8 Ohms

2 × 50 Watts
2 × 50 Watts
2 × 30 Watts
Frequency range 15 Hz – 22 kHz
THD < 0,05 % (1 kHz, 3 dB below full power)
Dynamic range > 100 dB
Display LED for ON/STANDBY; LEDs per channel for PROTECT, LIMIT, SIGNAL, SLEEP
Controls Power switch at front. At back VOLUME control per channel, DIP switches for AUTO ON/STEADY ON, GROUND/LIFT and SENSITIVITY +4/-6 dBU
DSP 24 Bit, 48 kHz
Latency 0,64 ms
Functions 4 × 2 mixer matrix, Lowpass, Highpass and 10 fully parametric filters per input/output: bell, high shelf, low shelf, high-pass, low-pass. Delay up to 400 ms, limiter and compressor per input/output, 40 presets
App LB AUDIO CONTROL Download Website: www.lb-lautsprecher.de/Download-Software
Remote Control Via network commands
Interface Ethernet, PA-S 250 DSC DANTE 2 x Ethernet
Additional connectors VCA inputs 0 -10 V for each channel (also for DV modules), ON/OFF contact N/C
Cooling Fanless
Protective circuits Peak limiter, current limiter and power limiter for each speaker output, short circuit and multilevel overtemperature protection
Power supply 90 up to 260 VAC
Main connector IEC connector
Power consum.
Standby
All channels SLEEP
All channels active
1/8 Nominal Power
Max. average consumption
Peak power
PA-S 250DSC/PA-S 250DSC DANTE
< 0,5 Watts
5 Watts / 6 Watts
6,7 Watts / 7,7 Watts
20 Watts / 21 Watts
44 Watts / 45 Watt

127 Watts / 128 Watts
Dimensions
(W × H × D)
¼ 19“, 1 U 110 × 42 × 233 mm
Weight 1.2 kg
Warranty 5 years
Downloads
Data sheet (PDF)
Manual
 
ModelVersion
PA-S 250 DSC
Order No.: 3005-0007
2-Channel amplifier with DSP and optical SPDIF input
PA-S 250 DSC DANTE
Order No.: 3005-0013
2-Channel amplifier with DSP and DANTE interface
Accessories
WP-V
Order No.: 3401-0003

Wall Panel (Volume control and ON/MUTE)

RP-V
Order No.: 3401-0004

Rack Panel (Volume control and ON/MUTE)

RP-1U
Order No.: 3402-0016

19“ Rack mount, 1U, for 6 × RP panels

DV-Module
Order No.: 3109-0006
Digital volume control (UP/DOWN contacts)
PA-T 2050
Order No.: 3109-0001
100 V transformer module, 2 × 50 watts, toroidal core
PA-T 1U
Order No.: 3109-0005
Rack cradle 19“, 1 U, for up to 4 x PA-S 250 DSC or PA-T 2050
MP-PA-S
Order No.: 3005-0030
Mounting plate for PA-S Series