Brax GX2000 – 2-Channel Class AB High-End Amplifier
Version: Black / Short
The GX2000 is the 2-channel model of the current BRAX GX amplifier generation, succeeding the original BRAX X2000 and X2400. It is a Class AB amplifier handcrafted in Germany, built as a pure power stage for high-end systems where crossovers and sound tuning are handled by an external processor.
BRAX omits all crossover and filter functions in this generation and instead focuses on the circuit board layout, short signal paths and hand-picked components. Transistors are selected individually – BRAX sorts them into more than 300 categories with in-house developed measuring equipment – to avoid power differences between units. The GX2000 is available in black or silver, with either a short or an extended heatsink.
Key Features
- Class AB, 2 channels: 2 x 290 W RMS at 4 Ohms, 2 x 530 W RMS at 2 Ohms, or 1 x 1,060 W RMS bridged at 4 Ohms.
- 32 hand-selected MOSFETs: high-end MOSFET output devices chosen individually for consistent performance.
- Purist signal path: no crossovers, filters, bass boost or phase controls.
- High-end input capacitors: premium signal capacitors at the signal inputs.
- Powerful power supply: specially developed transformers with high-efficiency core materials for a total output above 1,000 W.
- Solid aluminium heatsink: special aluminium alloy, cooling the power supply and output stage transistors.
- Gold-plated terminals: for power cables up to 50 mm² (gauge 1) and speaker cables up to 6 mm² (gauge 6), with low connection resistance.
- Dedicated IPC terminal: separate connection for a BRAX IPC capacitor directly at the switching transistors.
- Hidden gain controls: input sensitivity controls located under the nameplate; range 1.0–8.0 V.
- Measured performance: THD below 0.0009 %, damping factor above 1000, analog SNR above 120 dB (A-weighted).
- Versions: black or silver, each with a “Short” or “Long” heatsink.
- Made in Germany: handcrafted by Audiotec Fischer.
Inputs & Outputs
Two RCA (cinch) inputs and a remote input are provided, with 10 kOhms input impedance and input sensitivity adjustable from 1.0 to 8.0 V. There are no high-level inputs, no digital input and no RCA outputs. The amplifier has two speaker outputs, which can be bridged into a single channel at 4 Ohms.
Power & Amplifier Section
The GX2000 delivers 2 x 290 W RMS into 4 Ohms and 2 x 530 W RMS into 2 Ohms; bridged into 4 Ohms it produces 1 x 1,060 W RMS. No 1-Ohm or bridged 2-Ohm ratings are given. Frequency response is 10 Hz to 80 kHz, THD is below 0.0009 %, the damping factor is above 1000 and the analog signal-to-noise ratio exceeds 120 dB (A-weighted).
DSP & Sound Tuning
There is no DSP and no analog filter section (no high-pass, low-pass, band-pass, subsonic, bass boost or phase control). All crossover and tuning work is done in an upstream processor, making the GX2000 well suited to powering demanding woofers or subwoofers in a fully active high-end system.
Installation & Connectivity Notes
- Operating voltage: 9–16 V, briefly (max. 5 seconds) down to 6 V; start-stop capable.
- Idle current: 3.5 A.
- Fusing: 4 x 30 A LP-Mini fuses (APS) on board.
- Additional features: Colour Protection System and a BRAX Power Stabilizer connector.
- Dimensions (H x W x D): 53 x 237.5 x 433 mm with the short heatsink, 53 x 237.5 x 473 mm with the long heatsink.
- Weight: 8.1 kg (short heatsink) or 8.5 kg (long heatsink).
Technical Specifications
| Output power RMS | |
| – @ 4 Ohms | 2 x 290 Watts |
| – @ 2 Ohms | 2 x 530 Watts |
| – @ 1 Ohm | – |
| – bridged @ 4 Ohms | 1 x 1,060 Watts |
| – bridged @ 2 Ohms | – |
| Amplifier technology | Class AB |
| Inputs | 2 x Cinch 1 x Remote In |
| Input sensitivity | RCA / Cinch 1.0 – 8.0 Volts |
| Input impedance RCA / Cinch | 10 kOhms |
| Input impedance highlevel | – |
| Outputs | 2 x Speaker output |
| Output voltage RCA / Cinch | – |
| Signal converter for digital input | – |
| Frequency response | 10 Hz – 80 kHz |
| Bass boost | – |
| Highpass | – |
| Lowpass | – |
| Bandpass | – |
| Subsonic | – |
| Phase | – |
| Slope high- / lowpass | – |
| Slope subsonic / lowpass | – |
| Signal-to-noise ratio digital input | – |
| Signal-to-noise ratio analog input | > 120 dB (A-weighted) |
| Distortion (THD) | < 0.0009 % |
| Damping factor | > 1000 |
| Operating voltage | 9 – 16 Volts (max. 5 sec. down to 6 Volts) |
| Idle current | 3.5 A |
| Fuse | 4 x 30 A LP-Mini-fuse (APS) |
| Additional features | Colour Protection System, BRAX Power Stabilizer connector, Start-Stop capability |
| Dimensions (H x W x D) | Heatsink „Short“: 53 x 237.5 x 433 mm / 2.09 x 9.35 x 17.05″ Heatsink „Long“: 53 x 237.5 x 473 mm / 2.09 x 9.35 x 18.62″ |
| Net weight | Heatsink „Short“: 8.1 kg Heatsink „Long“: 8.5 kg |
Scope of Delivery
1 x High-End Amplifier BRAX GRAPHIC GX2000
1 x BRAX GRAPHIC T-shirt
3 x Allen key
1 x Instruction manual
