D 20:4L Combines 2000 W of Flexible Power with the Latest LAKE DSP, DANTE Digital Audio Networking and Advanced System Integrity Monitoring. The D 20:4L is based on the same foundation of robust, high-power amplifier technologies as our renowned PLM Series – an amplifier platform with a proven record of reliability and sonic performance on the world’s most grueling concert tours and in high-profile, large-scale installations.
Features
- 2,000 Watt amplifier with 4 flexible output channels and up to 1,600 Watts channel output
- 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 500 Watts into 2 Ohms, 4 x 500 Watts into 2.67 Ohms, 4 x 500 Watts into 4 Ohms, 4 x 500 Watts into 8 Ohms, 4 x 425 Watts into 16 Ohms, 4 x 500 Watts into Hi-Z 25 V, 4 x 500 Watts into Hi-Z 70 V, 4 x 250 Watts into Hi-Z 100 V
- Proven and reliable IDEEA Class D Output Stage with direct drive 70 and 100 V constant voltage systems as well as low impedance
- Rational Power Management (RPM) provides total flexibility to allocate available power across all 4 output channels for most efficient use of system inventory
- Best-in-class Power Factor Correction (PFC) and switch mode power supply reduces running costs and minimizes environmental impact
- Breaker Emulation Limiter (BEL) with configurable mains current draw threshold and breaker profile to safeguard mains breakers from tripping
- Configurable Auto Power Down and Adaptive Rail Control enables real world lifetime energy savings
- Under-Voltage Limiting (UVL) for continued operation during severe mains supply voltage drops
- Dedicated on-board surveillance and load monitoring for mass notification applications
- Redundant audio inputs and on-board system surveillance for voice alarm systems
- CAFE (Configuring Amplifiers For the Environment) software for design, system planning, equipment planning, installation and commissioning
- Control and monitoring integration with 3rd-party matrix systems including MediaMatrix* and Q-Sys* via dedicated interfacing software
- Dedicated front-panel mute buttons for each amplifier channel with bicolour LED indication
- 4 “Lake Class” analog input channels with Iso-Float ground isolation for reliable audio distribution
- 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 digital audio inputs and amplifier outputs on plug-in Phoenix* connectors
- Detachable and locking IEC mains cable rated at 250 V / 16 A with variety of wall plugs selectable on order
- Removable dust filter grille for increased air circulation and simple maintenance
- Rugged slimline (1U) rackmount chassis including rear support brackets for ease of installation
Specifications
General
| 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 |
No products in the cart.
Reviews
There are no reviews yet.