DNA 20K8c Amplifier
DNA 20K8c Professional Amplifier
Danley Sound Labs 8 channel amplifiers present a unique combination of power and audio performance combining advanced DSP and network control with many other contractor friendly features.
The 20K8c Professional Amplifier from Danley features 20,000 Watts RMS output power. The integrated state of the art digital signal processor (DSP) is the ideal complement to Danley loudspeaker systems. This revolutionary amplifier provides a logical front panel user interface and powerful Ethernet based remote control. Both provide access to all features allowing rapid system configuration with full performance monitoring and analytics.
The 20K8c features:
- Eight channels of sonically pure Class D amplification
- Unique, precise digital signal processing
- Over designed switch mode power supply
- 20,000 Watts RMS total output
- Analog, AES3 and Dante digital network audio inputs
- Full front panel user interface
- Ethernet network software for system operation and monitoring
- DSP Drive Modules for loudspeaker processing
- Powerful grouping for multi-layer EQ and effective control of large systems
General Specifications
Amplifier Topology
Class D
Number of Channels
Eight
Total Power Output, All Channels Driven
20,000 Watts RMS
Audio Inputs
8x Analog, 1x AES3, and 8x Dante (factory fitted option)
Digital Signal Processing
High performance DSP processing on all inputs and outputs
Control, Monitoring and System Status Alarms
Ethernet network
Volt-free relay and contact closure port
Volt-free relay and contact closure port
Power-Save Modes
Standby after user defined time, instant wake up on audio (less than 1ms)
Deep ECO sleep after user defined time, wake up on command (30 seconds)
Deep ECO sleep after user defined time, wake up on command (30 seconds)
System Standby and Wakeup
Front panel switch, network command, and audio detection
Power Output
Power Specification
RMS output power per channel, all channels driven with continuous program material and a nominal ambient temperature of 40°C / 105°F
Crest Factor of 4 (12dB), 2-Ohm Nominal Load
1,500W
Crest Factor of 2.8 (9dB), 4-Ohm Nominal Load
2,500 W
Crest Factor of 2 (6dB), 8-Ohm Nominal Load
1,500W
Bridged, Per Channel Pair, 4-Ohm Nominal Load
3,000W / 5,000W
100V Line Operation, Crest Factor 4 (12dB)
2,500W
70V Line Operation, Crest Factor 4 (12dB)
1,970W
25V Line Operation, Crest Factor 4 (12dB)
625W
Audio Performance
Amplifier Topology
Proprietary 5h Generation High Performance Class D
Amplifier Modulation Scheme
Low feedback, multiple loop, with feed-forward error correction
Dynamic Range to Amplifier Output
Analog input, better than 113dBA typical
AES / Dante input, better than 114dBA typical
AES / Dante input, better than 114dBA typical
Gain (with all DSP level controls set to 0dB)
32dB
Frequency Response, 4-Ohm Load
Less than 7Hz to greater than 30KHz, 4 Ohms -2.5dB
Total Harmonic Distortion, THD
Less than 0.05% typical, 1KHz signal, AES17 filter, 4 Ohm load
Inter-Channel Crosstalk, Worst Case Combination
Better than -85dBr at 1KHz and -75dBr at 10KHz
Slew Rate
Greater than 60V per microsecond typical
Damping Factor (ref 8 Ohms)
Greater than 800 at amplifier output
Maximum Analog Input Level
+20dBu
Analog Input Sensitivity Range for Full Output
0dBu to +20dBu, continuously adjustable
Analog Input (4 Channels)
Input 20k Ohm, electronically balanced, link directly connected to analog input
Analog Ground Scheme
AES48 standard compliant
AES3 Input (Two Audio Channels, One Connection)
Transformer isolated with unique active cable equilization for extended range
AES3 Link (Two Audio Channels, One Connection)
Active AES3 signal regeneration. Automatic direct bypass to the AES3 input ensuring the audio signal will still flow even when the amplifier is powered down
AES3 Supported Sampling Rates
24KHz to 192KHz (auto locking)
Digital Signal Processing
Resolution
40 bit, proprietary LMD algorithms (Linea Micro Detail)
Sample Rate
96KHz throughout
Physical Inputs to DSP Drive Modules
8x analog, 2xAES, & 8x Dante inputs can be routed to eight DSP drive modules
Drive Module Input Processing
Input signal routing, delay, gain, high pass filter, polarity, mute
EQ: 2x low shelf, 6x parametric, and high FIR shelving filter
EQ: 2x low shelf, 6x parametric, and high FIR shelving filter
Drive Module Output Processing
Source, delay, gain, polarity, mute, high pass and low pass crossover filters, VX limiters
EQ: low shelf, 8x parametric / all pass, and high shelf filters
EQ: low shelf, 8x parametric / all pass, and high shelf filters
Preset Management
10 snapshots for device wide setup, 50 presets for loudspeaker settings;
Presets can be recalled to sets of outputs or individual outputs as required.
Presets can be recalled to sets of outputs or individual outputs as required.
Unique High Performance Processing: Overlays
Twelve additional independent overlays of EQ, Delay and Gain;
Flexible grouping for effective control of many amplifier channels in large systems
Flexible grouping for effective control of many amplifier channels in large systems
Unique High Performance Processing: Class Leading VX Limiters
See the ‘speaker protection systems’ section
Unique High Performance Processing: LIR Crossover Filters
Linear Phase alignments without the compromises of FIR filters
Power Supply
Topology (Main Power Supply)
3rd generation high performance Series Resonant
Internally Stored Energy
Greater than 600 Joules
Nominal Mains Input Voltage Range
85V to 240V Power supply automatically detects voltage and configures accordingly
Mains Input Frequency Range
47Hz to 63Hz
Mains Inrush Current (Max for <10ms)
6A at 115V and 12A at 230V
Overview
Under all circumstances the control and protection systems will endeavor to deliver the maximum power possible for a given set of conditions, applying limiters only in extreme circumstances. Muting will only occur when a dangerous situation is detected, normal operation automatically resuming when the condition clears.
System Protection
Excessive power supply current or amplifier output current
Excessive temperature per sub system: PSU, amplifier and DSP
Mains voltage within acceptable limits
Internal power rails producing correct output
Fans operating at correct speed
Excessive temperature per sub system: PSU, amplifier and DSP
Mains voltage within acceptable limits
Internal power rails producing correct output
Fans operating at correct speed
Speaker Protection
Sustained clipping prevention
DC offset protection
Excessive HF energy (VHF) limiter
DC offset protection
Excessive HF energy (VHF) limiter
Power Distribution Protection Systems
Mains inrush current limiting for soft start and anti-surge
Mains average current limiting for mains breaker management
Randomized initialization when remotely powered up
Mains average current limiting for mains breaker management
Randomized initialization when remotely powered up
VX Audio Output Limiters
VX provides a linear phase virtual crossover and two limiter paths on each output. This unique system delivers effective protection for systems that incorporate passive crossovers.
VX Limit: Multiband peak limiter, two per output
VX Max: Multiband overshoot limiter, two per output
X-Max: Driver excursion limiter
T-Max: Driver thermal limiter (long term power limiter)
VX Limit: Multiband peak limiter, two per output
VX Max: Multiband overshoot limiter, two per output
X-Max: Driver excursion limiter
T-Max: Driver thermal limiter (long term power limiter)
Monitoring, Measurement Recorded Against Time
Supply current
Supply voltage
Thermal capacity
Each driver current
Each driver impedance
Protection limiting for each output
Supply voltage
Thermal capacity
Each driver current
Each driver impedance
Protection limiting for each output
Monitoring, Device Statistics and Counters
Number of power cycles counted
Number of mains brownout events counted
Fan speeds continuously monitored
Fan under-speed events counted
Various protection mute events counted
Driver impedance continuously monitored
Number of mains brownout events counted
Fan speeds continuously monitored
Fan under-speed events counted
Various protection mute events counted
Driver impedance continuously monitored
Alarms
An inbuilt alarm and notification system to indicate problems to remote devices either via the network or the volt-free changeover relay contacts accessibly on the rear panel.
Physical
Cooling
Dual vari-speed fans, front to back airflow; Washable, tool less change filter media
Analog IN and LINK
Phoenix pluggable terminal block
AES3 Dual Channel IN and LINK
Phoenix pluggable terminal block
Amplifiers Output
4x Neutrik Speakon NL4 connectors
Mains Input Connector
Neutrik 32A Powercon
Dante Primary and Secondary
2x shielded RJ45
Relay Output & Contact Closure Inputs / Outputs
Phoenix pluggable terminal block
LED Indicators
Bright, easily differentiated
Enclosure
Standard 19″ 2U (88mm), 14″ (357mm) deep with handles and optional rear support
Net Weight
27.5 pounds (12.5kg)
Rear Support Kit
DNA-RSK
