Features of the Lab Gruppen PLM 12K44 BP 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
- 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
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