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Datasat AP25

The most powerful and feature-rich digital audio processor available to the cinema industry today

With 16 channels of digital audio available as standard, the AP25 leverages the power of six Analog Devices 400MHz DSPs. In addition, it includes one S/PDIF, two TOSLINK and four HDMI 2.0b inputs with Blu-ray decoding to provide the ability to handle widest range of professional and consumer content. Its channel support allows the AP25 to accommodate the standard 5.1 digital surround up to and beyond the 11.1 and 13.1 sound formats required for the next generation of 3D audio.

The AP25 comes with 31 bands of third octave and three bands of parametric equalization on every channel. In all, the AP25 delivers 512 individual equalization bands. In addition, each channel includes low, high and bandpass filters as well as individual treble and bass controls to deliver a stunning clarity of sound.

The AP25 takes advantage of Datasat’s exclusive licensing of Dirac Live room optimization technology for the cinema industry. This makes the AP25 the only cinema audio processor to include true working mixed-phase correction. In addition to impulse response optimization, you receive advanced tools to correct issues in both the time and frequency domains including magnitude response correction, early reflection reduction and bass management.

The advanced room optimization technologies in the AP25 combined with its audio equalization and audio delay capabilities allow you to deliver a sound stage that is transparent and true-to-source. Regardless of room design or speaker arrangement, you’re able to tune the listening environment to provide the optimum experience whatever content type is being played.

Every facet of a properly tuned room is captured and stored. The room can be tuned to optimize different content types. The memory presets can then be used to switch quickly between set-ups as the content changes without having to re-tune the room. In addition, all presets can be saved to a USB memory stick. This provides security in case of failure but also allows for the rapid tuning of new rooms. In new cinema construction where all rooms are designed to be identical, you an use one audio processor to tune the initial room, save this to the memory presets on the USB stick and tuning the next room becomes as easy as downloading the memory presets onto that room’s processor.

The AP25 presents you with a number of features to make management flexible and convenient. In addition to a range of wireless remote control options – including smartphone, tablet and laptop support – the system includes Ethernet and RS232 connects with up to 20 user-defined set-up and operational profiles.


The Datasat AP25 delivers the precise reproduction of both digital and analog sources. It is the professional solution that is developed by sound engineers for the most realistic movie experience available in movie theatres worldwide.

The AP25 offers an outstanding array of features in a single box. With 16 channels of digital and analog inputs and outputs, it delivers an impressive total of 85 input options and 34 output options – almost double its nearest competitors. The result is that the AP25 is one of the few audio processors capable of 3D audio today.

Its market leading features include unique room optimisation technology, granular sound control and a comprehensive range of memory pre-sets to facilitate room tuning and the optimum playback of alternative content. The AP25 delivers a true-to-source sound stage with unbeatable voice intelligibility and crystal clear musical score and effects reproduction.

An 8 channel version of the Datasat AP25 is available for cinema exhibitors that have less demanding requirements but still demand outstanding sound quality. An easy upgrade path is available to the full AP25 product.

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Inputs & Outputs

Digital Audio Decoders

Dolby AC3

DTS Master Audio / DTS ES / DTS 5.1 / Neo:6

Signal Inputs

Digital Audio Inputs
Channels: 16
Connector: Two DB25 (Female) connectors (1-8) and (9-16)
Digital Format: AES/EBU
Sample Rates: 44.1kHz, 48kHz, 96 kHz and 192kHz

Other Digital Audio Inputs
Connector: Two TOSLINK (optical S/PDIF) and 1 coaxial (S/PDIF)

Analog Audio Inputs
Channels: 8 balanced that are fully routable as to output, can be connected unbalanced
Connector: DB25 (Female)
Impedance: 10k ohms
Sensitivity: 300mv rms

Other Analog Audio Inputs
Channels: 2 stereo single ended and routable (non-sync) input pairs
Connector: 4 RCA jacks
Impedance: 10k ohms
Sensitivity Adjustable: -16dBv to -4dBv

Microphone Input

Single channel -68dBv to -8dBv input (XLR female connector) with switchable
+48V phantom power

HDMI Audio & Video Inputs

Audio Channels
Up to 8 (PCM, DTS-HD Master Audio & Dolby AC3)
Connectors: 5 HDMI connectors (ie: 4 switched as inputs and 1 as output – Video passed thru)

HDMI 1.3 compliant digital audio with video pass-thru

Signal Outputs

Digital Audio Outputs
Channels: 16 (fully routable as to input)
Connector: Two DB25 (Male) connectors (1-8) and (9-16)
Digital Format: AES/EBU
Sample Rates: 48kHz, 96 kHz and 192kHz
Two DB25 (Male) (1-8) and (9-16)

Analog Audio Outputs
Balanced (can be connected unbalanced or single ended)
Channels: 16 (fully routable as to input) common mapping with Digital Outputs
Level: 10dBu with Fader at 7, +26dBu max (balanced)
Two DB25 (Male) (1-8) and (9-16)

Monitor Output
1 single ended RCA output, channel-selectable to drive an external monitor. Adjustable Level to 300mv rms

Hearing Impaired Output
1 single ended RCA output, summed output for Assistive Listening . – Fixed Level Out, 300mv rms





Audio EQ

Dirac Live® Room Optimisation (option)
16-Channel Dirac Live® room optimisation
Installer kit required to install Dirac Live®

3rd Octave EQ
16 channels – 31 user-adjustable bandpass filters
Gain +/-6dB adjustable in 0.5dB steps
Frequencies range from 20Hz to 20kHz.

16 channels with 3 user-adjustable parametric filters for shaping Subwoofer response.
Adjustable from 20 to 200Hz, gain +/-6dB in 0.1dB steps
Q range from 0.7 to 5.

Hi/Low Active Crossovers
Adjustable from 20Hz to 20kHz; adjustable slope of 6, 12, 18 or 24dB per octave (Linkwitz-Riley, Butterworth or Bessel)

Bass/Treble tone control
Adjustable +/-6dB at 150Hz and 5.5kHz
Corner frequency for bass adjustable from 50Hz to 300Hz
Corner frequency for treble adjustable from 1.5kHz to 12.0kHz


Automation Inputs/Outputs
Connector: DB25 Female
18 bi-directional GPIO’s plus additional 2 GPO only, optically isolated, mute and fader inputs
External +5v@140mA

35mm Film

35mm Film Optical Soundtrack Audio Processing (with optional H338 PCB)
Built-in processing for mono, A-Type and SR noise reduction.
Matrix decoding LT/RT to left, center, right and surround
Optical bass extension with adjustable low-pass filter and gain.
2 projector inputs for change-over operation.
Automation control for change-over.
BNC connectors for external RTA and oscilloscope.
Graphical user interface for A-chain alignment including optical gain, slit-loss EQ, and azimuth.


Remote Control
RS232 DB9 Female
10/100Mbps Ethernet
Can be controlled by smart phone, iPad, Android based devices via iRule or VNC
Crestron Integrated Device

Setup/Operation Profiles
Named profiles identifying inputs, output, filter and channel gain settings
Touchscreen or automation format switching
Export/Load of user profile to additional cinema processors with identical room setups (via USB)
Configurable for up to 40 user defined named format selections. Format selections include processing options along with a selected named set for EQ and output channel profile.
Configurable for up 40 user defined named EQ sets which include definitions for Dirac optimization, third octave EQ, parametric EQ, bass and treble controls.
Configurable for up to 40 user defined output channel profiles which include output channel names, output routing, crossover high/low pass filters.
User defined input selections controllable by Touchscreen, GPIO, or ethernet
Export/Load of user configurations via USB


Audio Delays

Individual Channel Delays
Input delay 0 – 999ms
Output delay 0-120ms

Global Delay
0 –1000ms

Note: Total delay per channel not to exceed 1000ms