Brax Graphic GL6 Mk2 6.5″ woofer
Graphic GL6 Mk2
6.5″ / 165 mm High-End Woofer
Brax speakers are reference-grade components for installations where no compromise is acceptable. Designed and manufactured in Germany by the engineers behind Helix, these represent the absolute pinnacle of automotive speaker engineering. This isn’t a casual upgrade from factory speakers – Brax components demand professional installation, proper amplification, and complete system integration.
Brax – German Car Audio
It all started with the vision of music lover and company founder Heinz Fischer to be the first to bring exceptional audio experience of legendary high-end hi-fi components into the car. Uncompromising in design, technology and sound. True to these fundamental principles, the focus in the development of our BRAX GRAPHIC loudspeaker series is on pure, unaltered music reproduction, consistently realized by the latest technologies and highest-quality materials – of course designed and made in Germany.
Each pair of speakers is unique
As is typical for BRAX, each pair of speakers is given its own serial number and recorded in a service database. This high-end product – made in Germany – is rounded off by the packaging in a fine wooden box, which once again underlines the philosophy of the BRAX brand.
Features
- Very stiff lightweight paper cone with unique “MicroSphere” coating consisting of micro ceramic hollow spheres embedded in a polymer layer offers best possible impulse response without any sound colouration
- Special shaped rubber surround for long linear cone excursion
- Polyurethane dustcap for optimization of the frequency response in the upper midrange area
- Extremely rigid aluminium die-cast basket
- 24 carat gold-plated screw terminals for lowest contact resistance
- Powerful and precisely machined magnet system for high efficiency in combination with excellent magnetic flux linearity
- Large pole-piece ventilation hole significantly reduces compression effects
- Rugged magnet cover with BRAX lettering for perfect magnet protection
Technical data
| Power handling RMS / max. | P | 100 / 150 Watts |
| Impedance | Z | 3 Ω |
| DC resistance | Re | 3.0 Ω |
| Frequency response | 40 Hz – 4,000 Hz | |
| Resonance frequency | Fs | 52 Hz |
| Mechanical Q factor | Qms | 6.00 |
| Electrical Q factor | Qes | 0.57 |
| Total Q factor | Qts | 0.52 |
| Compliance | Cms | 603 μm/N |
| Equivalent air volume | Vas | 16.3 L |
| Force factor | B*I | 5.2 Tm |
| Sensitivity | SPL | 92 dB @ 2.83V / 1m 88 dB @ 1W / 1m |
| Cone area | Sd | 139 cm² |
| Moving mass | Mms | 15.3 g |
| Cone material | Paper cone with “MicroSphere” coating consisting of micro ceramic hollow spheres embedded in a polymer layer | |
| Mechanical resistance | Rms | 0.84 kg/s |
| Voice coil diameter | ø | 37 mm |
| Voice coil winding height | 14 mm | |
| Max. linear excursion | Xmax | +/- 4.0 mm |
| Outer diameter | ø | 166 mm / 6.5″ |
| Installation diameter | ø | 142 mm / 5.6″ |
| Installation depth | 68.2 mm / 2.7 |








