d&b audiotechnik D80 4-Channel Amplifier

Description

d&b audiotechnik D80 4-Channel Amplifier

If your design specification for a fixed installation or mobile touring rig requires high sound pressure levels (SPL), select the 2U, four-channel d&b audiotechnik D80 power amplifier. Its DSP includes two graphic equalizers, delay capabilities, and configurations for all d&b loudspeakers plus a linear mode. The D80 features a color TFT touchscreen, offering quick access to the menu structure, while the rotary encoder can be used for fine adjustment. The front panel and the integrated touchscreen of the D80 amplifier are tilted up for ease of operation when the amplifier is below eye level.

d&b audiotechnik D80—At a Glance:

Installation-specific, four-channel amplifier
4 x 4,000W into 4 ohms maximum power
Compatible with all current d&b loudspeaker setups
Display Color TFT touchscreen, 3.5″/320 x 240 pixel

d&b audiotechnik D80—Parsing the Details

Built for high-power applications, the D80 features a comprehensive DSP for signal control. It has signal delay capability that enables user-definable settings of up to 10s (= 3440 m/11286 ft.) to be applied independently to each channel. The same applies to its two 16-band equalizers, providing optional parametric, asymmetric, shelving, or notch filtering.

Angled touchscreen control

The D80 incorporates a color TFT touchscreen, offering quick access to the menu structure, while the rotary encoder can be used for fine adjustment. The front panel and the integrated touchscreen of the D80 amplifier are tilted up for ease of operation when the amplifier is below eye level. The equal ratio of the signal input to amplifier output channels increases the application flexibility, particularly for monitor, front-fill, or effect channel use.

Automatic impedance/reactance compensation

The LoadMatch function integrated within the D80 amplifier enables the electrical compensation of loudspeaker cable properties, without the need for an extra conductor. LoadMatch results in increased accuracy of audio reproduction over a bandwidth of up to 20kHz, preserving tonal balance in cable lengths of up to 70 m (230 ft.).

Power Factor Correction (PFC)

The D80 incorporates Class D amplifiers utilizing a power supply with active Power Factor Correction (PFC)* suitable for mains voltages of 100V/120V/200V/230V at 50 – 60Hz and maintains a stable output when used with weak or unstable mains supplies. An NL8 provides all outputs on a single connector, while individual outputs are optionally NL4 or EP5 connectors. RJ45 and etherCON connectors enable access to the d&b Remote network via CAN-Bus and OCA/AES70 via Ethernet respectively.

*What is power factor correction (PFC)—Power factor correction is a technique for increasing the power factor of a power supply. Switching power supplies without power factor correction draws current in short, high-magnitude pulses, which can be smoothed out by using active or passive techniques. This reduces the input RMS current and apparent input power, thereby increasing the power factor. Power factor correction tries to push the power factor of the power supply towards 1. It gets to as close as 0.95 which is acceptable for most applications.

Integrated web interface

The D80 amplifier features an integrated web interface to control individual amplifiers via a standard web browser. In small applications, this allows direct control of each device without the need to create an R1 Remote control software file. The amplifier and the computer must be connected to an Ethernet network. Using a wireless access point, these d&b amplifiers can be controlled using mobile devices.

d&b audiotechnik D80 applications:

Touring and concerts
Musical productions
Concert halls
Nightclubs and bars

The D80 Touring racks

The D80 Touring racks are designed as fully equipped and prewired system racks, providing mains power distribution, connector interfaces, and all internal cabling for either three or six D80 amplifiers.

The 3 x D80 Touring rack is available with either a 32 A CEE mains power connector with a 32 A mains link or one 30 A NEMA mains socket, and a loudspeaker connector panel with three NL8 (4 channel) and one LKA25 (12 channel) loudspeaker outputs. Electrically interlocked auxiliary mains outputs (powerCON1 16 A sockets) are provided to power the DS10 and other low-current devices such as laptops.

The 6 x D80 Touring rack is available with either a single 32 A CEE mains power distribution panel or a dual 30 A NEMA mains power distribution panel. Electrically interlocked auxiliary mains outputs (powerCON1 16 A sockets) are provided to power the DS10 and other low-current devices such as laptops. The 2 RU loudspeaker connector panel of the 6 x D80 Touring rack assembly provides six NL8 (4 channel) and two LKA25 (12 channel) loudspeaker outputs. This loudspeaker connector panel is also equipped with a Power over Ethernet (POE) socket to connect and power an inclinometer.

The DS10 Audio network bridge delivers 16 AES3 outputs to the D80 amplifiers via the Dante audio transport protocol over Ethernet, while also providing the distribution of control data. It incorporates an integrated 5-port switch, offering a primary and redundant network for the Dante protocol, as well as advanced functions such as Multicast Filtering and VLAN modes. This extensive switch flexibility provides extended connectivity for a laptop to control the d&b amplifiers using the R1 Remote control software via the OCA (Open Control Architecture) protocol. Using the DS10 Audio network bridge, audio signals and remote control data can be combined using a single Ethernet cable. The front panel of the DS10 is designed to align with the input panel of the D80 Touring rack assembly.

The 19” internal shock mount steel frames also accommodate an I/O panel providing both analog and digital audio signals as well as four network connectors for either Ethernet or CAN-Bus remote networking. The 3 x D80 Touring rack is provided with either a DS10 Audio network bridge, which comes supplied with all necessary cabling or a 1 RU drawer. The DS10 Audio network bridge is provided in the 6 x D80 Touring rack as standard.

The DS10 Rack upgrade kit contains everything required to replace the drawer within the D80 Touring rack assembly with a DS10. This kit includes a DS10 Audio network bridge, a powerCON to powerCON mains cable, an Ethernet patch cable, and two AES3 XLR patch cables.

The MC24 multi-core

Large line-array systems require an efficient multi-core solution, especially when each loudspeaker in an array is driven individually with ArrayProcessing. The d&b MC24 multicore system is designed specifically for use with the D80 Touring racks. It provides 12 amplification channels (24 lines 4 mm2) with an LKA25 F/M connector, delivering 12 channels in dual-channel mode, or six channels in 2-way active mode and Mix TOP/SUB mode. The reinforced cable, heavy-duty mesh cable gland, and bayonet clutch within the LKA25 connector improve handling and reliability.

A single 6 x D80 Touring rack can drive up to 12 SL-Series or J-Series cabinets in ArrayProcessing, or 24 KSL / J Top TOP cabinets in standard mode with linked loudspeakers. Up to 24 T, Y, or V-Series line array loudspeakers can be driven with ArrayProcessing from a single amplifier rack, while a total of 48 Y-Series or V-Series line array modules can be driven in standard mode with linked loudspeakers. Adapters are available to break out from the multi-core cable to the individual NLT4 inputs of the loudspeakers. A break-in option is available to adapt an NL8 amplifier output to an MC24 multi-core. All d&b touring racks come fully assembled, pre-wired, and tested.

Architectural specifications for detailed project planning

If you require architectural specifications for a d&b system or a specific d&b Series, the most important technical specifications can be downloaded from the d&b audiotechnik website.

For assistance configuring a d&b audiotechnik system with D80 amplifiers, call or chat online with your Parsons Audio integrator today.

specifications:

Digital Signal Processing

Equalizer: 2 x 16-band PEQ/notch/shelving/asymmetric
Latency analog and digital inputs: 0.3ms
Delay setting: 0.3ms – 10s
Configurations: Current d&b loudspeakers and linear mode
Function switches: d&b loudspeaker-specific circuits
Frequency generator: Pink noise or sine wave
Sampling rate: 27-bit/96kHz ADC; 24-Bit DAC

Controls and indicators

Power: Mains power switch
Scroll/Edit: Digital rotary encoder
Display: Color TFT touchscreen, 3.5″/320 x 240 pixel
ISP, GR, OVL A/B: Color TFT

Connectors

Input analog (A1 – A4): 3-pin XLR female
Analog link (A1 – A4): 3-pin XLR male
Input digital (D1/2, D3/4): 3-pin XLR female AES 3
Digital link (output): 3-pin XLR male
Sampling Digital AES/EBU: 48/96 kHz
Speaker outputs A/B/C/D: NL4, optional EP5
4-channel output: NL8
CAN: 2 x RJ45 parallel
Ethernet: 2 x etherCON^®, 10/100Mbit Ethernet
Mains connector: powerCON^®-HC

Data (linear setting with subsonic filter)

Maximum output power per channel (THD+N < 0.5%, all channels driven)

CF = 6dB at 4/8 ohm: 4 x 2,600/2000W
CF = 12dB at 4/8 ohm: 4 x 4,000/2000W

S/N ratio (un-weighted, RMS)

Analog input: N/a
Digital input: > 114dBr

Power supply

Type: Auto-sensing switch mode power supply with active Power Factor Correction (PFC)
Rated mains voltage high range: 208 to 240V; 50–60Hz
Rated mains voltage high range: 100 to 127V; 50–60Hz

Dimensions/weight (approx.)