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PA 4400 DSC

19" Multichannel DSP Amplifier


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Special features
  • Multichannel amplifier with 8 x 4 DSP-Matrix

  • Three models:
    PA 4400 DSC with 8 x line IN symmetrical
    PA 4400 DSC CINCH with 8 x line IN cinch asymmetrical
    PA 4400 DSC DANTE with Dante interface

  • 4 x 400 watts at 2 – 8 ohms, 2 x 800 watts at 4 – 16 ohms

  • 8 x line IN, 4 x speaker OUT

  • Second slot for additional input module

  • Control via Ethernet

  • Speaker presets for all LB Loudspeakers

  • Multiband limiter for volume limitation

  • VCA inputs per channel

  • Switchable Automatic On/Off per channel

  • On/Off- and Fault contact

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

  • Silent running regulated fans

  • Switchable Ground Lift per input channel pair
  • 1U chassis, installation depth only 348 mm
  • Optional:
    8xIN-SYM input module 8 x line IN symmetrical
    8xIN-CINCH input module 8 x line IN asymmetrical
    DANTE 8x8 Dante Interface
    • 100 V transformer
    • 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
  • Clubs, discotheques
  • Concert halls, theatres
  • Churches
Description

The PA 4400 DSC is a sophisticated, class-D power amplifier with four output channels and integrated 8 x 4 DSP matrix. The power amplifier has an output rating of 4 x 400 watts at 2 - 8 ohms or 2 x 800 watts at 4 - 16 ohms in bridge mode. The amplifier is controlled over Ethernet using our LB CONTROL app or network commands. By selecting the appropriate speaker presets in the outputs, all of our speakers can be powered with maximum audio performance. With the multiband limiters available in the speaker presets the maximum volume can easily be limited without sound impairment. The PA 4400 DSC circuits are designed to ensure outstanding sound quality and reliability with minimum heat build-up. The generously proportioned, high-capacity power supply together with our processor-controlled class-D power amplifier modules guarantee outstanding efficiency levels and enormous power reserves. Equipped with a second input module, the amplifier can process both analog and digital signal sources. 
The input Sensitivity is switchable for each channel, as well as a ground lift for each channel pair. An automatic On/Off function (switchable for each channel) automatically switches inactive amplifier channels to an energy-saving Sleep mode. In addition to the 8 x 4 mixer matrix and the speaker presets, the DSP also offers ten parametric filters, delay up to 100 ms plus Peak and RMS limiters for every input and output. We prepare project-specific presets on request. To enable remote control, the amplifiers are equipped with an On/Off contact and VCA inputs for each channel. For external volume control use our WP-V and RP-V volume controllers or the DV module with Up/Down contacts. 
Any fault in the power amplifier channels is signaled via the isolated fault contact.
 

Models
PA 4400 DSC
Order No.: 3106-0176
8 x Line In sym.
PA 4400 DSC CINCH
Order No.: 3106-0177

8 x Line In Cinch

PA 4400 DSC DANTE
Order No.: 3106-0178
Dante Interface, 2 x RJ-45 Ethernet (Primary/Secondary)
Downloads
Data sheet (PDF)
Technical data
Inputs
8 x Line IN sym. / 8 x Line IN cinch asym. / Dante (depending on the model)
Nom. input/output level
+4/-6 dBU, switchable
Max. input/output level
+18 dBU
Input impedance
20 kohms
Load impedance
≥ 2 ohms, Bridge ≥ 4 ohms
Outputs
4 x Speaker OUT up to 2 x 4 mm² screwtype terminals, pluggable)
Output power 2 ohms
4 x 400 watts
Output power 4 ohms
4 x 400 watts
Output power 8 ohms
4 x 400 watts
Output power Bridge
2 x 800 watts (4 -16 ohms)
Frequency range
15 Hz -22 kHz
Dynamic range
>100 dB
Displays
OLED display, LED for ON/STANDBY; LED for CLIP/LIMIT/DSP/SIGNAL; LEDs per channel for PROTECT, LIMIT, SIGNAL, SLEEP
Controls
Preset selector and power switch at front. Dip switches AUTO ON/STEADY ON and SENSITIVITY +4/-6 dBU per channel at back.
DSP
24 bit, 48 kHz
Latency
0.64 ms
Functions
8 x 4 routing matrix, 10 fully parametric filter, peak limiter, RMS limiter, delay up to 100 ms per input/output. 40 presets, speaker presets for all LB speakers
App
LB CONTROL download from our website: www.lb-lautsprecher.de/en/Download-Software
Interfaces
Ethernet
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, air flow from front to back
Protective circuits
Inrush current limiter, peak limiter, current limiter and power limiter for each speaker output, short circuit and multilevel overtemperature protection for all internal channels
Power supply
230 VAC
Mains connector
IEC connector
Power consumption Standby
< 0.5 watts
Power consumption All channels SLEEP
19 watts
Power consumption All channels active
35 watts
Power consumption 1/8th power maximum
271 watts
Max. power consumption
440 watts
Peak power
2440 watts
Dimensions (B x H x T)
19", 1 U, 483 x 44 x 348 mm
Weight
10 kg
Warranty
5 years
Accessories
8×IN-SYM
Order No.: 3108-0004

8-channel input module for the PA series / PA DSC series with symmetrical line inputs. The module features GROUND LIFT dip switches for each channel pair.

8×IN-CINCH
Order No.: 3108-0008

8-channel input module for the PA series / PA DSC series with asymmetrical cinch inputs. The module features GROUND LIFT dip switches for each channel pair.

PA 4400 DSC DANTE
Order No.: 3108-0009

8-channel Dante input module for the PA series / PA DSC series. The Dante interface features two RJ45 terminals for audio over Ethernet (primary/secondary).

WP-V
Order No.: 3401-0002
Wall panel, volume control for amplifiers of the PA Series for surface boxes.
RP-V
Order No.: 3402-0002
Wall panel, volume control for amplifiers of the PA Series for surface boxes.
RP-1U
Order No.: 3402-0016
19“ Rack mount, 1U, for 6 × RP panels
DV-Modul
Order No.: 3109-0006
Digital volume control for amplifiers of the PA Series.
PA-T 400
Order No.: 3109-0004
100 V transformer module, 400 watts, toroidal core
PA-T 1U
Order No.: 3109-0005
Rack cradle 19“, 1U for 4 × PA-T 100, 2 × PA-T 200, 2 × PA-T 400
In-Ceiling Speakers
Trimless In-Ceiling
Speakers
Invisible
Speakers
Installation
Series
Subwoofers
Directional
Speakers
Display Speakers
Soundbars
Column
Speakers
PA Speakers
PA Subwoofers
Amplifiers
Controller
CONTROL
App
Contact