Features of the Lab Gruppen PLM 12K44 SP Amplifier
- 12,000 Watt amplifier with 4 flexible output channels and up to 5,900 Watts channel output for touring applications
- Lake digital signal processing for unparalleled loudspeaker management and system control
- Integrated 8×8 channels of dual redundant Dante* digital audio networking with AES67 support
- 4 x 3,000 Watts into 2 Ohms, 4 x 3,000 Watts into 2.67 Ohms, 4 x 3,000 Watts into 4 Ohms, 4 x 1,900 Watts into 8 Ohms, 4 x 950 Watts into 16 Ohms, 4 x 3,000 Watts into Hi-Z 70 V, 4 x 3,000 Watts into Hi-Z 100 V
- Proven and reliable Class-TD output stage with proprietary Intercooler high-efficiency cooling system
- Rational Power Management (RPM) provides total flexibility to allocate available power across all 4 output channels
- Best-in-class Power Factor Correction (PFC) with Current Draw Modelling reduces running costs and minimizes environmental impact
- Under-Voltage Limiting (UVL) for continued operation during severe mains supply voltage drops
- Dedicated on-board surveillance and load monitoring for complete peace of mind
- Redundant audio inputs and on-board system surveillance for full system security
- Backlit, white-on-black front panel display and menu navigation buttons
- 100 user presets for simple and efficient system configuration and set-up
- 3 front-to-rear airflow fans with temperature control for optimal speed and reduced noise
- 4 “Lake Class” analog input channels with Iso-Float ground isolation
- 4 input channels of AES/EBU (AES3) digital audio supporting all standard sample rates up to 192 kHz with 24-bit resolution
- 2 Neutrik etherCON* RJ-45 ports provide dual redundant Dante interfaces and remote configuration via Lake Controller and Dante Controller software
- Balanced analog and AES/EBU audio inputs on Neutrik* XLR connectors
- 1 NLT8 and 2 NLT4 Neutrik speakON* output connectors
- Detachable Neutrik powerCON* cable rated at 250 V / 32 A
- Removable dust filter grilles for increased air circulation
- Rugged 2U rackmount chassis for durability in touring applications
Specifications
General
Processing / Network |
Lake / Dante |
Number of amplifier channels |
4 |
Total burst power all channels (share among channels with RPM) |
12000 W |
Max output power (all channels driven)1
2 ohms |
3000 W |
2.67 ohms |
3000 W |
4 ohms |
3000 W |
8 ohms |
1900 W |
16 ohms |
950 W |
Hi-Z 70 V |
3000 W |
Hi-Z 100 V |
3000 W |
Max output power single channel1
2 ohms |
4400 W |
2.67 ohms |
5900 W |
4 ohms |
4600 W |
8 ohms |
2300 W |
16 ohms |
1150 W |
Hi-Z 70 V |
3300 W |
Hi-Z 100 V |
4700 W |
Amplifier output modules (all models, all channels)
Peak output voltage |
194 V |
Max. output current |
67 A |
Rational Power Management (RPM) |
Regardless of model, any channel has potential to deliver the max single channel output power |
Default voltage limitation (can be lifted with RPM configuration) |
175 V |
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 |
Audio Performance (Amplifier platform with digital input)
THD + N 20 Hz – 20 kHz for 1 W |
< 0.05 % |
THD + N at 1 kHz and 1 dB below clipping |
< 0.04 % |
Dynamic range |
> 114 dB |
Channel separation (Crosstalk) at 1 kHz |
> 70 dB |
Frequency response (1 W into 8 Ohm, 20 Hz – 20 kHz) |
+/- 0.05 dB |
Internal Sample Rate / Data path |
48 / 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 |
Measurement & Analysis
Pilot tone generation and analysis |
Yes |
Load impedance analysis |
Yes |
Real Time Analyzer (RTA), 3rd party integration |
Yes |
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 |
Device presets
Local memory locations for the settings of the product |
100 |
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 |
Limiters
Adjustable Inter-Sample Voltage Peak Limiter (ISVPL) |
17.8 – 194 V, step size 0.1 V |
Current Peak Limiter < 300 ms |
67 A peak |
Current Average Limiter (CAL) > 300 ms |
33 Arms |
MaxRMS (rms voltage limiter) |
Yes |
MaxPeak (peak voltage limiter) |
Yes |
Gain
Amplifier gain |
22 – 44 dB, step size 0.1 dB |
Output attenuator |
-Inf to 0 dB, step size 0.25 dB |
Back panel Interface
Analog, 2-channel I/O (input + link) |
4 x 3-pin XLR, electronically balanced |
AES / EBU / I/O (input + link) |
2 x 3-pin XLR |
Output connectors |
Neutrik speakON (1 x NLT8, 2 x NLT4) or 4 Binding Posts (pairs) |
Auto 10/100, Auto Uplink |
2 x RJ45 etherCON |
Control and monitoring interface |
Via Ethernet for Lake Controller software, or DLM (the 3rd party protocol) |
Detachable mains cord |
Neutrik PowerCon rated at 250V/32A |
Cooling |
Three fans, front-rear airflow, temperature controlled speed |
Front-panel user interface
Display |
2.5 inch, black / white, daylight readable LCD |
Fault/Warning/Limit/Clip indicators |
RGB LEDs and detailed fault description on display |
Mute and soft function buttons |
8 provided |
Standby Power button |
On/Standby |
Mute Enable button |
Enables muting of outputs and inputs via soft-button keypad |
Meter button |
Toggles through meter views |
Menu button |
Provides a menu driven interface for full function front panel control |
Rotary Encoder |
Yes |
Exit Button |
Provides a “back” function |
Mains Power
Nominal voltage |
100 – 240 Volt AC 45 – 66 Hz |
Operating voltage |
70-265 V AC |
Mains wall plug |
NEMA L5-30 “Twist lock” 125 V / 30 A, and CEE 7/7 “Schuko” 230 V / 16 A |
Power supply features
Soft start / Inrush power |
Yes/ Max 8 Ampere |
Power Factor Correction (PFC) |
0.98 |
Regulated switch mode power supply (R.SMPS) |
Yes |
Breaker Emulation Limiter (BEL) |
Configurable current threshold and breaker profile |
BEL max current threshold |
25 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: 88 mm (2 U), D: 424 mm (16″) |
Overall depth front-rear support |
D: 498 mm (19.6″) |
Weight
Finish
Finish |
Black painted steel chassis with black painted steel / aluminum front |
Approvals
Approvals |
CE, ANSI / UL 60065 (ETL), CSA C22.2 NO. 60065, FCC, PSE, RCM, BIS India |
Chris Black –
Great product