เครื่องขยายเสียง Lab Gruppen รุ่น D 20:4L

Lab Gruppen D 20:4L Specifications
Processing / Network
Lake / Dante
Number of amplifier channels
4
Total burst power all channels (share among channels with RPM)
2000 W
Max output power (all channels driven)1
2 ohms
500 W
2.67 ohms
500 W
4 ohms
500 W
8 ohms
500 W
16 ohms
425 W
Hi-Z 25 V
500 W
Hi-Z 70 V
500 W
Hi-Z 100 V
250 W
Max output power single channel (all models)1
2 ohms
850 W
2.67 ohms
1150 W
4 ohms
1600 W
8 ohms
1100 W
16 ohms
600 W
Hi-Z 25 V
500 W
Hi-Z 70 V
1400 W
Hi-Z 100 V
1000 W
Amplifier output modules (all models, all channels)
Peak output voltage
142 Vpk
Max output Current
30 Apk
Rational Power Management (RPM)
Share “Total burst power” of the product freely among channels. Any channel can scale up to the “single channel max power”
Default voltage limitation (can be lifted with RPM configuration)
100 Vpk
Protection features
Current Average Limiter (CAL), Very High Frequency Protection (VHF), Direct Current Protection (DC), Short Circuit Protection, Current-Clip Limiter, Voltage Clip Limiter, Temperature protection
Amplifier platform
Inter Sample Voltage Peak Limiter (ISVPL)
Configurable Peak voltage threshold and profile
Amplifier gain
Digital configurable amplifier gain 22 – 44 dB
Dynamic range
> 112 dB
Load impedance analysis
Yes
Temperature control
Temperature regulated fans (front-to-rear airflow) and show must go on limitation (ATL, PTL)
Internal Sample Rate / Data path
96 kHz / 32 bit floating point
Product propagation delay AES 96 kHz / analog input
1.61 / 1.68 ms
Lake processing
Loudspeaker processing
Up to 4 modules of Classic/linear-phase/FIR crossover, EQ, delay, LimiterMax™ – peak and RMS limiters
System tuning
Group control with Raised Cosine™ MESA EG™ asymmetric filters
Input redundancy / Matrix
Automatic 4 level input redundancy / 4 input mixers
System integration
Comprehensive 3rd party protocol over UDP Ethernet
Dante Audio Network
Dante I/O
8 x 8
Network topology / redundancy
Flexible topology / Supports daisy-chained and Dual redundant networks
Sample Rates / Transport
48, 96 kHz / Uni + Multicast
Network latency
0.25, 0.5, 1.0, 2.0, 5.0 ms
AES Inputs
Inputs
4 AES inputs
Supported sample rates / resolution
44.1, 48, 88.2, 96, 176.4, 192 kHz / up to 24 bits
Sample rate conversion THD+N 20 Hz – 20 kHz unweighted
0.0000003
Analog Inputs
Inputs
4 high quality inputs with Iso-Float ground isolation
Maximum input / digital reference
+26 dBu / +21 dBu
Sampling rate / Resolution
96 kHz / 24 bit
Input impedance balanced / unbalanced
20 / 10 kOhm
THD+N (typical at 1 kHz unweighted)
0.0000022
THD+N (typical at 20 Hz and 20 kHz unweighted)
0.0000033
Back panel Interface
Analog inputs
4 x Terminal block connectors analog input with +, – and ground
AES inputs
4 x Terminal block connectors analog input with +, – and ground
Output connectors
4 x 2 pole Terminal block connectors rated at 1000 V / 41 A (exceeding amplifier capacity) Can take up to 8 mm2 (8.2 AWG) cables
Ethernet Ports
2 x EtherCon RJ45 Lake Controller, Dante controller and/or DLM (3rd party protocol)
Detachable mains cord
Detachable locking 3-pin IEC rated at 250 V / 16 A
Front-panel user interface
System status indication
3 x tri-color LED. FRAME, TEMP, PSU for device status indication
Channel status indication
3 x tri-color LED per channel. Status indication separated for channel LOAD, AMP, SIGNAL status
Mute
Per channel touch button for MUTE control and tri-color LED for indication
Power
Touch button for ON/STANDBY control and tri-color LED for power state indication
Select
Touch button and LED for bidirectional device software select functionality
Mains Power
Nominal voltage
100 – 240 Volt AC 50 – 60 Hz
Operating voltage
70 – 265 V AC 45 – 66 Hz
Mains wall plug
Selectable on order CEE 7/7 “Schuko” 230 V / 16 A, NEMA 5-15 125 V / 15 A, BS1363-A 250 V / 13 A, IA16A3 250 V / 16 A, AU/NZ 250 V / 10 A, JP 125 V / 15 A, CPCS-CCC 250 V / 10 A
Power supply features
Soft start / Inrush power
Yes
Power factor correction
> 0.98 for mains power > 300 W
Regulated switch mode power supply (R.SMPS)
Yes
Breaker Emulation Limiter (BEL)
No
BEL max current threshold
Fixed 8 A
Power Average Limiter (PAL)
Yes
Under Voltage Limiter (UVL)
Yes
Mains undervoltage and overvoltage protection and mains glitch tolerance
Yes
Dimensions
Rack rail to rear panel
W: 483 mm (19”), H: 44 mm (1 U), D: 425 mm (16.7”)
Overall depth front-rear support
D: 463 mm
Weight
Weight
7.9 kg (17.3 lbs)
Finish
Finish
Black painted steel chassis with grey painted steel front with detachable grille
Approvals
Approvals
CE, ETL (ANSI/UL, CSA), PSE, RCM, BIS, CCC