Brax Matrix ML165 PRO 6.5″ woofers
Brax Matric ML165 PRO
Handcrafted 165 mm / 6.5” High-End Woofer
Power, Control and Sonic Perfection
The BRAX MATRIX ML165 PRO represents the next evolutionary stage of the legendary MATRIX ML6 D – a loudspeaker that has long been regarded in the high-end world as a benchmark for natural music reproduction. With a refined technical design, state-of-the-art materials and uncompromising attention to detail, it has been further developed to elevate midbass performance to an unprecedented level.
The result is a loudspeaker that reproduces music with impressive authority, exceptional precision and emotional depth – created for sound enthusiasts who accept no compromise.
Brax speakers are reference-grade components for installations where compromise is unacceptable. 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.
Features
- Ultra-lightweight carbon fleece multilayer cone – combines superior stiffness-to-weight ratio with reduced resonance for precise, natural and highly dynamic sound reproduction
- Copper cap on the pole core – minimizes voice coil inductance, linearizes impedance at high frequencies, and enhances efficiency for greater transparency and refined upper-frequency response
- Hemispherically shaped dust cap – optimizes the upper midrange response for seamless tonal transitions and exceptional detail resolution
- Aerodynamically shaped aluminum die-cast basket – allows ideal voice coil ventilation while minimizing airflow noise for consistently high performance even at demanding levels
- High-strength Nomex spider – crafted from meta-aramid fabric to ensure exceptional shape stability and long-term reliability even under demanding conditions
- Specially shaped rubber surround – crafted from premium butyl enables maximum linear cone excursion with minimal distortion
- Ultra-precise machined magnet system – guarantees optimal symmetrical magnetic flux, outstanding impulse accuracy and powerful low-frequency performance
- Vented pole core and spider – enhances airflow within the magnetic system and reduces compression effects for consistent performance even at high sound pressure levels
- Massive 24-carat gold-plated terminals – guarantee maximum conductivity and signal quality
- Made in Germany – developed and manufactured for uncompromising sound quality at reference level
Technical data
| Power handling RMS / max. | P | 120 / 170 Watts |
| Impedance | Z | 4 Ω |
| DC resistance | Re | 3,4 Ω |
| Frequency response | 40 Hz – 4,000 Hz | |
| Resonance frequency | Fs | 48 Hz |
| Mechanical Q factor | Qms | 6.80 |
| Electrical Q factor | Qes | 0.50 |
| Total Q factor | Qts | 0.47 |
| Compliance | Cms | 560 μm/N |
| Equivalent air volume | Vas | 14.6 L |
| Force factor | B*I | 6.3 Tm |
| Sensitivity | SPL | 91 dB @ 2.83V / 1m 88 dB @ 1W / 1m |
| Cone area | Sd | 137 cm² |
| Moving mass | Mms | 19.1 g |
| Cone material | Carbon fleece multilayer cone | |
| Mechanical resistance | Rms | 0.87 kg/s |
| Voice coil diameter | ø | 37 mm / 1.5″ |
| Voice coil winding height | 14 mm / 0.6″ | |
| Max. linear excursion | Xlin | +/- 4.0 mm |
| Max. mechanical excursion | Xmax | +/- 8.0 mm |
| Outer diameter | ø | 167 mm / 6.5″ |
| Installation diameter | ø | 143 mm / 5.6″ |
| Installation depth | 64 mm / 2.5″ |












