Purifi Audio PTT4.0X08-NAC-03
4" (10cm) midrange driver
/piece
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Description
The PTT4.0X08-NAC-03, manufactured by Purifi Audio, takes the performance of compact 4" long excursion drivers to a new level. With the easily recognizable PURIFI NeutralSurround suspension and the ultra-linear motor system PURIFI PureDrive technology, this model represents almost unparalleled quality. Special features such as the vibro-acoustically optimized cone and dust cap made of black anodized aluminium, negligible Force Factor Modulation (FFM) and Surround Radiation Distortion (SRD) as well as low Magnetic Hysteresis Distortion (MHD) make it a pioneer in the field. Designed and manufactured in Denmark, the PTT4.0X08-NAC-03 offers pristine midrange performance and "true" long excursion performance with low distortion across the entire excursion.
Highlights
- Vibroacoustically optimized cone and dust cap made of black anodized aluminium
- Negligible Force Factor Modulation (FFM) and Surround Radiation Distortion (SRD)
- Low magnetic hysteresis distortion (MHD)
- Dedicated midrange driver with improved efficiency
- "True" long-stroke performance with low distortion across the entire stroke
- Unadulterated performance in the mid-range
- Developed and manufactured in Denmark
Properties
- Woofer type Long Stroke driver
- Nominal diameter 10.16 cm
- Load capacity (QMW) 200 watts
- Sensitivity (SPL at 1m / 2.83V) 81.8 dB
- Voice coil diameter 30 mm
- Direct current resistance (Re) 6.5 Ω
- Resonant frequency (Fs) 43 Hz
- Mechanical quality (Qms) 4.1
- Electrical quality (Qes) 0.43
- Overall quality (Qts) 0.39
- Moving mass (Mms) 11.9 g
- Compliance of the suspension (Cms) 1.16 mm/N
- Diaphragm area (Sd) 56.7 cm2
- Force factor (BL) 7.0 N/A
- Equivalent volume (Vas) 5.3 L
- Maximum deflection (Xmax) 6.85 mm
- Driver's Mechanical Losses (Rms) 0.79 kg/s
- Cut-out diameter 101 mm
- Fixing hole diameter 4.2 mm
Download data sheet
