d&b D40 Amplifier

This four channel Class D mobile amplifier provides the power density required for high-efficiency d&b systems including the KSL System, V-Series, Y-Series and T-Series.

The D40 incorporates comprehensive loudspeaker management, switchable filtering functions as well as user definable equalization and delay capabilities.

Onboard enhanced energy saving features, power efficiency and Automatic Wake up enable you to save on resources and meet environmental responsibility requirements.

The D40 incorporates up to eight input channels with four analogue inputs and four AES3 channels with corresponding link outputs. Each input channel can be routed to any of the output channels.

The D40 utilizes a switch mode power supply with automatic mains range selection and active Power Factor Correction (PFC) to produce a clean current draw and ensure stable and efficient performance under adverse mains conditions.

Access to the d&b Remote network is via Ethernet using the Open Control Architecture protocol (AES70 / OCA). The D40 is controlled using the integrated web interface, which enables access via a browser, or using the d&b R1 Remote control software.

For applicable d&b loudspeakers, d&b LoadMatch enables the D40 amplifier to preserve tonal balance when cable lengths of up to 70 m (230 ft) are used.

Digital Signal Processing

• Equalizer: 2 x 16-band | PEQ/notch/shelving/asymmetric
• Latency analog and digital inputs: 0.3 ms
• Delay setting: 0.3 ms - 10 s
• Configurations: current d&b loudspeakers (except GSL, SL-SUB, J-Series, M2)
• Function switches: d&b loudspeaker specific circuits
• Frequency generator: Pink noise or Sine wave 10 Hz - 20 kHz

Controls and indicators

• POWER: Mains power switch
• SCROLL/EDIT: Digital rotary encoder
• Display: Colour TFT touchscreen, 4.35"/480 x 272 pixel

Connectors

• Sampling frequency Digital AES/EBU: 44.1, 48, 96, 192 kHz
• 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 AES3
• DIGITAL LINK (Output): 3 pin XLR male
• Speaker outputs A/B/C/D: NL4
• Mix TOP/SUB / 2-Way Active output A/B and C/D: NL4
• 4 Channel output: NL8
• ETHERNET: 2 x RJ 45, 1 Gbit/100 Mbit Ethernet
• Mains connector: powerCON®TRUE1 TOP

Data (linear setting with subsonic filter)

• Maximum output power per channel (THD+N < 0.5%, all channels driven) CF = 12 dB at 4 / 8 ohms: 4 x 2400/2000 W

Power supply

• Type: Autosensing switch mode power supply with active Power Factor Correction (PFC)
• Rated mains voltage: 100 - 127 / 208 - 240 V, 50 - 60 Hz

Dimensions / weight

• Dimensions (H x W x D): 2 RU x 19" x 512 mm/20.2"
• Weight: 13,8 kg | 30,4 lb