Purifi Audio PTT6.5X04-NFA-01
6.5" (16.5cm) bass-midrange driver
/piece
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Your advantages with Masori
Description
- A whole new perspective on driver design
- The Natural bead from PURIFI
- Extremely low distortion over the entire deflection range
- Developed and manufactured in Denmark
- Excellent performance in the mid-range
- High load capacity
- High linear deflection limit with constant force factor
The PTT6.5X04-NFA-01 is a 6.5" (16.5cm) bass-midrange driver from Purifi Audio. This device stands out for its unparalleled performance, precision and fidelity and is considered a groundbreaking technical achievement in the world of audio equipment. Developed and manufactured in Denmark, it guarantees the highest quality and reliability. With special features such as high power handling, low distortion and excellent midrange, the device will not disappoint even in the most demanding applications. In summary, the PTT6.5X04-NFA-01 is a bass-midrange driver that impresses not only with its technical specifications, but also with its unique performance.
Highlights
Product details
- Driver size 6.5"
- Direct current resistance, RDC 3.7 Ω
- Resonance frequency, fs 30 Hz
- Total Q-factor, Qts 0.27
- Effective area, Sd 133 cm2
- Equivalent volume, Vas 26 L
- [email protected]/1m 88.7 dB
- Linear Xmax +/- 10 mm
- Mechanical Xmax +/- 14.5 mm
- IEC load capacity 250 W
- Cone material Proprietary fiber mix
FAQ
F
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: Why is the bead oddly shaped?
A
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This is the PURIFI Natural surround. Conventional surrounds produce distortions when they deform. The shape of the Natural surround reduces the resonances and distortions at the edges of the membrane. It may look strange, but here form follows function. A closer look reveals that the surround is actually a complex sound wave. We are told that the Natural surround is also referred to as "wormy" by insiders.
Data
- Nominal diameter 6.5"
- Impedance 4 Ohm
- Max. load capacity 250 watts
- Power 80 Watt RMS
- Sensitivity 88.7 dB @ 2.83V/1m
- Voice coil diameter 39 mm
- Direct current resistance (Re) 3.7 ohms
- Voice coil inductance (Le) 0.38 mH @ 1kHz
- Resonant frequency (Fs) 30 Hz
- Mechanical quality (Qms) 5.8
- Overall quality (Qts) 0.27
- Moving mass (Mms) 26.7 g
- Compliance of the suspension (Cms) 1.04 mm/N
- Diaphragm area (Sd) 132.7 cm²
- Displacement volume (Vd) 132.7 cm³
- Force factor (BL) 8.1
- Equivalent volume (Vas) 25.9 liter
- Maximum deflection (Xmax) 10 mm
- Mechanical loss (Rms) 0.88 kg/s
Dimensions
- Outer diameter 176 mm
- Total depth 90.2 mm
- Cut-out diameter 145 mm
Download data sheet
