dB Technologies AC26-N Digital Audio Controller for Loudspeakers Processing

by dB Technologies

dB Technologies AC26-N Digital Audio Controller for Loudspeakers Processing

The AC26N Digital Audio Controller for Loudspeakers Processing from dB Technologies allows you to control professional audio systems and is designed for both fixed and touring installations. Thanks to its high-quality converters, powerful processing, and compatibility with the RDNet remote control protocol, the AC26N Controller is an extremely versatile tool. It allows you to manage (in real-time) active and passive systems, or act as a matrix for a loudspeaker system managing & solving tons of issues typical of live music applications. It uses the 28/56-bit processor and high performance 24-bit/96 kHz AD/DA converter.

The available functions include input and output levels, delay, polarity, 12 equalization bands for each input and output channel, multiple crossover, and high-performance limiter/compressor. The control resolution of the filters is 1 Hz, and inputs and outputs can be set according to many configurations to meet different needs. The AC26N Controller can be controlled in real time, and all its parameters can be edited on its front panel or through a computer, thanks to the intuitive graphic interface of the DVA Network software and a dedicated RDNet or USB network connection.

The CPU and DSP software updates are done via PC. They keep the device up-to-date, and make it possible to save and recall 32 preset configurations. The unit can also be remotely controlled using PC-based software. Communication can be performed using a USB cable or connecting the AC26N Controller into complex RDNet networks via Control 2 or Control 8 RDNet Hub. This proprietary communication protocol has been developed for receiving and sending data, and allows for real-time monitoring of loudspeaker parameters such as output power, amp temperature, limiter status, and more. The controller also allows you to select different equalizations or create new ones, including the ability to set the desired volume levels using the specific plug-in.


  • 28/56-bit DSP processing
  • Parametric EQ, delay, phase, compressor/limiter, level control
  • 24 bit/96 kHz AD/DA converters
  • 2 balanced inputs x 6 balanced outputs with flexible routing
  • 2 x AES/EBU inputs and 2 x AES/EBU outputs
  • RDNet hardware interface
  • Front panel or USB / RDNet remote control support using dB Technologies software
  • Live sound for rental application
  • Portable PA, ballrooms, live theater
  • Fixed installations in clubs, theaters
  • Houses of worship and corporate A/V professional
Tech Specs:
Frequency Response +/- 0.1 dB (20 to 30 kHz)
Dynamic Range 116 dB typical
Common Mode Rejection Ratio > 60 dB (50 to 10 kHz)
Crosstalk < -100 dB
Distortion 0.002% (1 kHz @ +4 dBu)
Digital Audio
Processor DSP 28/56-bit
Processing Data Processing Frequency: 24-bit BURR BROWN
Digital to Analog Converter 24-bit BURR BROWN
Propagation Delay 1.5 ms
Storage 32 presets
Display Graphic LCD
Buttons & Controls ESC - Menu - Functions Selection - Enter
Inputs / Outputs
Analog I/O n°2 x XLR (3 pole female) / n°6 x XLR (3 pole male)
Digital Input n°1 x XLR (3 pole female) - SPDIF-AES/EBU (AES3)
Digital Output n°1 x XLR (3 pole male) - Compliant with the input standard
Other I/O RDnet Inputs/Output: n°2 x XLR RJ45 (Cat5 cable)
USB B-Type
Gain -80 dB to +20 dB (step 0.1 dB)
Delay Input to Output 0 to 72.9 ms (step 0.1 ms)
Phase 0° to 180°
Compression Threshold: -80 dB @ +20 dB (step 0.1 dB)
Ratio: 1:1 to Inf:1 (step 0.01)
Output Gain: 0 to 40 dB (step 0.1 dB)
Attack Time: 1 to 1000 ms (step 0.1 ms)
Release Time: 1 to 1000 ms (step 0.1 ms)
Hold Time: 1 to 1000 ms (step 0.1 ms)
Equalizer 12 equalizers for each input and output
Type: PEQ (parametric), Hi-shelf, Lo-shelf
Frequency 20 Hz to 20 kHz (step 1 Hz)
Gain -30 to +15 dB (step 0.01 dB)
Band 0.05 to 2 dB (step 0.01 dB) - only with PEQ
Filter Filter Linkwitz Riley
Type: HP High-pass, LP Low-pass
Slope 12dB/oct - 24 dB/oct - 48 dB/oct
Cut-Off Frequency 5 Hz to 20 kHz (step of 1 Hz)
Power Supply Full-range 100 to 240 VAC / 50 to 60 Hz
Dimensions (W x H x D) 19 x 1.7 x 5.1" (48 x 4.3 x 13 cm)
Weight 4.2 lb (1.9 kg)


  • Most items are shipped out within 2 business days upon cleared payment
  • Ground shipping is free (orders over $40).
  • Free shipping only to the lower 48 states