Product overview
The BRAX DSP
The impossible takes a little longer – from the very first idea in 2011 until the sales start at the end of 2018 the all-new BRAX DSP went through the longest and most intensive development process in the history of Audiotec Fischer. Desperately awaited from many customers all over the world we proudly present the most advanced digital signal processor which is – without any doubt – redefining both sound quality and functionality. It is not only the first DSP on the market which deserves to bear the famous BRAX logo but it also elevates the performance standard to an unrivalled level. Audiotec Fischer didn't spare any effort to carry every single detail of this technological masterpiece to extremes.
The BRAX DSP
The "heart" consists of no less than three (3!) of the most advanced Sigma350 series fixed-point 64 Bit audio DSP's with the incredible processing power of 3.6 billion MAC operations per second. This allows to run the whole system on a native 192 kHz sampling rate, extending the audio frequency range to 80 kHz. The signal conversion is handled by the best sounding A/D and D/A converters from Asahi Kasei with specifications beyond imagination.
The BRAX DSP
Enormous care has been taken for the design of the power supply which is the essential foundation for perfect sound quality. A host of fifty-five voltage regulators cleans and stabilizes all the supply voltages for every single stage separately. A new high-performance 32 Bit CoProcessor (ACO) supervises every operation and assures fastest communication with the DSP PC-Tool software and the optional remote control DIRECTOR.
The BRAX DSP
But besides all its technical merits, the BRAX DSP marks the beginning of a new era in terms of connectivity as well. Its unique modular concept allows to configure the inputs and outputs either as analog , digital or a mix of it. It is hard to conceive that with this flexibility the BRAX DSP won't be able to support any kind of system configuration, neither today nor in the future. The “total work of art” is completed by a mechanical concept which gives the impression of immortality at first glance.
The BRAX DSP
Again, the enormous expenditure – from the massive heatsink in BRAX typical straight-lined design to the cinch jacks milled from the solid – is discernible down to the most minute detail.
Key features
- Three extraordinary powerful “fixed point” Sigma350 audio DSP's with 64 Bit resolution and a total of 3.6 billion MAC operations per second calculating power
- State-of-the-art Asahi Kasei "Velvet Sound" A/D and D/A converters with a native resolution of 32 Bit
- 192 kHz sample rate for ultra High-Res audio bandwidth up to 80 kHz
- Benchmark specifications for e.g. signal-to-noise ratio and total harmonic distortion, close to measuring limits
- Modular 8-channel in / 12-channel out concept with exchangeable stereo analog or digital input / output modules for covering all possible system configurations
- 4 stereo input modules with either analog RCA / Cinch and Highlevel or digital optical / coaxial SPDIF input
- 6 stereo output modules with either analog RCA / Cinch or digital optical / coaxial SPDIF outputs
- Output modules with switchable sampling rate of 48, 96 or 192 kHz
- Analog output modules with variable filter characteristics and switchable output voltage of 2, 4 or 8 Volts
- Muting of the analog output stages via relays with gold-plated contacts
- Additional stereo SPDIF input (optical / coaxial) as well as a Link module for system extensions
- Double BRAX Extension Card slot (BEC) for optional input / output modules like Bluetooth ® Audio Streaming, High Resolution Audio Streaming via USB etc.
- Unique DSP Sound Effects such as the “Augmented Bass Processing” which dynamically optimizes the bass response of the subwoofer, the “StageXpander” that significantly widens the stereo perspective, the “RealCenter” function, which allows a perfectly focussed sound staging for both driver and co-driver and much more
- Incomparably complex power supply concept with a total of 55 voltage regulators and start-stop capability
Technical specifications
| Technical data | |
|---|---|
| Inputs | Up to 8 x RCA / Cinch + 8 x highlevel speaker input | or | up to 4 x stereo SPDIF in optical / coaxial | 1 x Optical SPDIF (12 – 96 kHz) | 1 x Coaxial SPDIF (12 – 192 kHz) | 1 x Remote In | 1 x Remote control input |
| Input sensitivity | RCA / Cinch 1 – 8 Volts | Highlevel 3.5 – 30 Volts |
| Outputs | Up to 12 x RCA / Cinch | or | up to 6 x stereo SPDIF out optical / coaxial (48 / 96 / 192 kHz) | 1 x Remote Out | 1x SPDIF Link |
| Output voltage | 2 / 4 / 8 Volt RMS adjustable |
| Frequency response | 5 Hz – 80,000 Hz |
| DSP resolution | 64 Bit |
| DSP power | 3 x 295 MHz (3.6 Mrd. MAC operations/sec |
| Sampling rate | 192 kHz |
| DSP type | 3 x Audio signal processor |
| Signal converters | A/D: Asahi Kasei AK5572EN 32 Bit | D/A: Asahi Kasei AK4490EQ 32 Bit |
| Signal-to-noise ratio digital input | 122 dB (A-weighted) |
| Signal-to-noise ratio analog input | 116 dB (A-weighted) |
| Total harmonic distortion (THD+N) digital input | < 0.0004 % |
| Total harmonic distortion (THD+N) analog input | < 0.0006 % |
| IM distortion (IMD) digital input | < 0.0013 % |
| IM distortion (IMD) analog input | < 0.002 % |
| Crosstalk | > 110 dB (1 kHz) |
| Operating voltage | 10.5 – 16 Volt (max. 5 sec. down to 6 Volts) |
| Current draw | 2400 mA |
| Max. remote output current | 500 mA |
| Operating temperature range | -40 °C to +70 °C |
| Additional features | Modular input / output concept, 2 x BEC Slot, ground lift switch, 32 Bit CoProcessor, control Input, ADEP.3 circuitry, Auto remote switch, DiSAC volume control in combination with BRAX MATRIX MX4 PRO |
| Dimensions (H x W x D) | 310 x 200 x 56 mm / | 12.21 x 7.87 x 2.21" |
| Product properties | |
| Number of inputs | 1 x elektrischer Eingang, 1 x optischer Digitaleingang, 2 x BEC Steckplatz, 8 x Cinch / Highlevel |
| Number of outputs | 6 x elektrisch SPDIF, 6 x optisch SPDIF, 12 x Cinch |
| Signal path resolution | 192 kHz / 32 Bit |
| Signal-to-noise ratio | > 80 dB, > 85 dB, > 90 dB, > 95 dB, > 100 dB, > 105 dB |
| THD | < 0,001, < 0,01 %, < 0,05 %, < 0,1 % |
| Advanced features | ADEP highlevel input, Auto remote switch, BEC slot, High-Res audio, Integrated DSP, Regulated power supply, Start-Stop capability |
What you are ordering
The exact BRAX model shown above, APEX catalogue SKU BRAX-DSP. Review the listed inputs, outputs, impedance and system requirements before ordering.
Technical information verified against the official Audiotec Fischer product page.
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