d&b audiotechnik D20 Four Channel Amplifier
The d&b audiotechnik D20 is a compact four-channel amplifier engineered for installation and mobile applications.
It is built on d&b's latest DSP platform, and supports all current d&b loudspeakers plus linear mode operation. Each channel delivers up to 1600W into 4Ω, with dual 16-band parametric EQs offering precise tonal shaping through parametric, asymmetric, shelving, and notch filters.
The tilted colour TFT touchscreen and rotary encoder enable intuitive, ergonomic control on the fly. With up to 10 seconds of delay per channel and LoadMatch technology that compensates for cable properties without extra conductors, the D20 maintains tonal integrity across extended cable runs. Class D amplification with active PFC ensures stable operation across global mains voltages. Flexible output connectivity, NL8 multicore, four NL4s for dual-channel mode, and dedicated outputs for Mix TOP/SUB and 2-Way Active configurations, accommodates diverse installation scenarios. Network control via Ethernet (OCA/AES70) and CAN-Bus integration with d&b R1 Remote software streamlines system management.
Features:
- Maximum output power
4 x 1600 W into 4 Ω - All current d&b loudspeaker
setups except J-Series, M2, SL-Series - Display Colour TFT touchscreen, 3.5"/320 x 240 pixel
Specifications:
Digital Signal Processing:
- Equalizer: 2 x 16-band PEQ/notch/shelving/asymmetric
- Latency Analog and Digital Inputs: 0.3 ms
- Delay Setting: 0.3 - 10000 ms
- Configurations: Current d&b loudspeakers (except SL-Series, J-Series, M2) and linear mode
- Function Switches: d&b loudspeaker specific circuits
- Frequency Generator: Pink noise or Sine wave
- Sampling Rate: 96 kHz/27 Bit ADC/24 Bit DAC
Controls and Indicators:
- Power: Mains power switch
- SCROLL/EDIT: Digital rotary encoder
- Display: Colour TFT touchscreen, 3.5"/320 x 240 pixel
- ISP, GR, OVL A/B: Colour TFT
Connectors:
- INPUT ANALOG (A1 - A4): 3 pin XLR female
- ANALOG LINK (S1 - A4): 3 pin XLR male
- INPUT DIGITAL (D1/2, D3/4): 3 pin XLR female AES3
- DIGITAL LINK (Output): 3 pin XLR male
- Sampling Digital AES/EBU: 48 kHz/96 kHz
- Mix TOP/SUB / 2-Way Active output A/B and C/D: NL4
- 4 Channel Output: NL8
- CAN: 2 x RJ 45 parallel
- Ethernet: 2 x etherCON, 10/100 Mbit Ethernet
- Speaker Outputs A/B/C/D: NL4
- Mains Connector: powerCON
Data (Linear Setting with Subsonic Filter):
- Maximum output power per channel (THD+N < 0.5%, all channels driven)
CF = 6 dB at 4 / 8 ohms: 4 x 1000/800 W
CF = 12 dB at 4 / 8 ohms 4 x 1600/800 W - S/N ratio (unweighted, RMS)
Analog input: > 104 dBr
Digital input: > 106 dBr
Power Supply:
- Type: Universal range switch mode power supply with active PFC
- Rated Mains Voltage: 100 - 240 V, 50 - 60 Hz
Dimensions / Weight:
- Dimensions (h x w x d): 2 RU x 19" x 460 mm/18.1"
- Weight: 10.8 kg/23.8 lb
