The PLM 12K44 Combines a 4-in, 4-out Configuration with Industry-standard Dante Networking, Setting the Benchmark for Powered Loudspeaker Management Systems.
The PLM 12K44 is the natural successor of the proven, road tested, and trusted Lab Gruppen touring foundation exemplified by the iconic PLM series, but with an additional new powerful feature set: the ability to rationalize power allocation between channels to optimize performance. Now packaged in an extended 4-in, 4-out configuration together with twice the processing power via the latest version 6.3 Lake Controller release, plus industry-standard Dante® networking, the PLM 12K44 sets the benchmark for Powered Loudspeaker Management Systems.
Features
- 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
- Rugged binding post 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
| Weight | 16.5 kg (36 lbs) |
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 |
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