Brax Relevation RX2 Pro
2 x 300 Watts @ 4 Ohms
2 x 510 Watts @ 2 Ohms
1 x 930 Watts bridged @ 4 Ohms
Revelation RX2 Pro
2-channel amplifier
Brax amplifiers represent German reference-grade engineering with no cost constraints.
Designed by the team behind Helix, these are built for installations where technical excellence matters more than price.
Brax exists for serious installations where proper system design, professional integration, and uncompromising performance justify the investment.
Available with either analogue or digital inputs, in black or silver.
Brax Relevation RX2 Pro Features
- Proprietary bridgeable high-end Class D amplifier concept based on PURIFI’s patented ‘EIGENTAKT’ technology – redefining automotive sound quality and outperforming even the best Class A and Class AB amplifiers
- Unique ‘Multistage Feedback Design’ – multiple feedback loops individually compensate for all non-linearities in the power section, including the LC filters and even the output relays, for absolute precision.
- Outstanding measurement values – outperforming everything thanks to negligible THD+N, minimal intermodulation distortion (IMD), an impedance-unaffected, linear frequency response up to 60 kHz and an impressive signal-to-noise ratio
- Modular input concept with selectable modules – offers a choice between analog or digital inputs
- Analog stereo input module – with innovative ‘super-balanced’ input structure for particularly high interference immunity thanks to maximum Common-Mode Rejection (CMR), equipped with the currently best sounding and ultra-low-noise OPA1612 operational amplifiers from BurrBrown
- Digital stereo input module – equipped with the latest state-of-the-art ES9039Q2M DAC from ESS, powered by a voltage regulator specially developed by ESS to provide each DAC channel with an extremely low-noise and stable power supply. Equipped with an optical and a coaxial SPDIF input that supports our proprietary DiSAC 2.0 protocol for lossless and highly advanced volume control, manageable via the BRAX DSP
- Incomparably sophisticated power supply – a regulated, start-stop-capable power supply unit for the output stages with enormous total capacity for maximum peak current capability. Separate voltage regulators for each input and driver stage guarantee maximum stability and prevent any influence on the signal quality; suitable up to 18V on-board voltage for electric vehicles
- Exceptional frequency-independent damping factor of over 10,000 @ 4 ohms – unlike conventional Class D designs, this ensures maximum speaker control at all frequencies, resulting in unrivalled audio precision.
- Particularly compact and maximum efficiency – same dimensions as a BRAX DSP, ideal for modern vehicle concepts thanks to low heat generation and high efficiency
- Ultra-low impedance 8-layer printed circuit board – allowing maximum, loss-free current flow and optimum isolation of sensitive input signals from the power stages
- Exclusive use of the finest and selected components – guarantees maximum consistency and remarkable durability
- Complex protection circuits – Optimum protection of the amplifier and the connected speakers under all conceivable load and temperature conditions
- Processor and temperature-regulated fan – ensures optimum cooling and an ideal operating temperature range for the amplifier
- Separate connector for the BRAX Power Stabiliser – for an increased power supply and improved maximum performance of the amplifier
- Massive heat sink made of a special aluminum alloy – enables optimum heat dissipation and continuously high performance
- Engraved serial number in the stainless steel type plate – emphasises the exclusivity of the amplifier
Technical data
| Power RMS ≤ 1% THD+N | RX2 PRO with digital input module |
| – @ 4 Ohms | 2 x 300 Watts |
| – @ 2 Ohms | 2 x 510 Watts |
| – @ 1 Ohm | – |
| – bridged @ 4 Ohms | 1 x 930 Watts |
| – bridged @ 2 Ohms | – |
| Amplifier technology | PURIFIs “EIGENTAKT” Class D |
| Inputs | 1 x Optical SPDIF (32 – 96 kHz) 1 x Coaxial SPDIF (32 – 192 kHz) 1 x Remote In 1 x Power Stabilizer Input |
| Input sensitivity | |
| Input impedance RCA / Cinch | |
| Input impedance highlevel | – |
| Outputs | 2 x Speaker output |
| Output voltage RCA / Cinch | – |
| Signal converter for digital input | ESS 9039Q2M with HyperStream IV Dual DAC technology and advanced ÂSABRE HiFi architekture / Supports ÂAudiotec ÂFischers proprietary DiSAC technology |
| OpAmp analog input | – |
| Frequency response | 10 Hz – 60 kHz |
| Bass boost | – |
| Highpass | – |
| Lowpass | – |
| Bandpass | – |
| Subsonic | – |
| Phase | – |
| Slope high- / lowpass | – |
| Slope subsonic / lowpass | – |
| Signal-to-noise ratio digital input | > 125 dB (A-weighted) |
| Signal-to-noise ratio analog input | – |
| Distortion (THD) | < 0.0002 % |
| Damping factor | > 10,000 |
| Operating voltage | 9 – 18 Volts (max. 5 sec. down to 6 Volts) |
| Idle current | 1.5 A |
| Power rating | DC 12 V ⎓ 150 A max. |
| Fuse | 4 x 25 A LP-Mini-fuse (APS) |
| Operating temperature range |  -20 °C to +70 °C |
| Additional features | Based on Purif’s EIGENTAKT technology, BRAX Power Stabilizer connector, Start-Stop capability, input mode switch |
| Dimensions (H x W x D) | 56 x 310 x 200 mm |
| Net weight | 4.0 kg |
