Brax DSP – Upgrade Module – Analog Output with AKM – analog stereo output module with AKM D/A converter
This upgrade module adds analog outputs to an existing BRAX DSP. It uses an Asahi Kasei AK4490REQ 32-bit, 2-channel D/A converter combined with a TI/BurrBrown OPA1656 op-amp with SoundPlus technology in the analog path.
Five digital FIR output filters can be selected in software to fine-tune the sound, and the output voltage is switchable. Made in Germany and supplied in a wooden box with BRAX design.
Key Features
- D/A converter: Asahi Kasei AK4490REQ, 32-bit, 2-channel, 192 kHz sampling rate
- Analog stage: TI/BurrBrown OPA1656 op-amp with SoundPlus technology
- Output filters: five digital FIR filters selectable in software
- Output voltage: switchable 2, 4 or 8 V RMS
- Auto detection: module is recognised automatically, measured values shown in the DSP PC-Tool
Compatibility
- BRAX DSP (can be retrofitted to any BRAX DSP)
Installation Notes
- Automatic module detection requires DSP PC-Tool version 4.42a or later.
Technical Specifications
| Signal converter |
Asahi Kasei AK4490REQ |
| Operational amplifier | TI/BurrBrown OPA1656 with SoundPlus technology |
| Sampling rate |
192 kHz |
| Frequency response | 5 Hz – 70 kHz |
| Signal-to-noise ratio (A-weighted) | 122 dB |
| Total harmonic distortion (THD+N) | -108 dB (= 0.0004 %) |
| IM distortion (IMD) | -103 dB (= 0.0007 %) |
| Crosstalk | < -107 dB (@1 kHz) |
| Output voltage | 2 / 4 / 8 Volt RMS adjustable |
Scope of Delivery
1 x BRAX DSP – Upgrade Module – Analog Output with AKM
1 x Exclusive wooden box with BRAX design
