PTT8.0X08-NAB-01

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8.0" Ultra Low Distortion Extended Woofer

DKK 4,375.00 4375.0 DKK DKK 4,375.00 VAT Excluded

DKK 4,375.00 VAT Excluded

Not Available For Sale

  • Type
  • Size
  • Nominal impedance
  • Cone material
  • Linear excursion, Xlin
  • Maximum mechanical excursion, Xmax
  • Motor efficiency factor, Beta
  • Efficiency Bandwidth Product, EBP
  • Long term maximum power
  • Rated noise power, 100h
  • DC resistance
  • Minimum impedance above resonance, Zmin
  • Frequency for minimum impedance, fmin
  • Maximum impedance, Zo
  • Voice Coil inductance @ 1kHz 0mm, Le
  • SPL @ 2.83Vrms/1m, 300-800Hz
  • SPL @ 1W/1m, 300-800Hz
  • Resonance frequency, fs
  • Mechanical Q factor, Qms
  • Electrical Q factor, Qes
  • Total Q factor, Qts
  • Equivalent volume, Vas
  • Effective piston area, Sd
  • Effective piston diameter, D
  • Force factor, Bl
  • Mechanical resistance, Rms
  • Moving mass, Mms
  • Suspension compliance, Cms
  • Typical corner frequency, sealed B2 alignment
  • Box volume, sealed B2 alignment
  • Typical corner frequency, bass reflex PTT alignment
  • Box resonance, bass reflex PTT alignment
  • Box volume, bass reflex PTT alignment
  • Port diameter, bass reflex PTT alignment
  • Port length, bass reflex PTT alignment
  • Typical corner frequency, 2xPR PTT alignment
  • Box volume, 2xPR PTT alignment
  • PR mass per PR, 2xPR PTT alignment
  • Voice Coil diameter
  • Voice Coil length
  • Voice Coil layers
  • Airgap height
  • Winding material
  • Basket diameter
  • Cutout diameter
  • Mounting hole pattern diameter
  • Mounting hole diameter
  • Magnet diameter
  • Outer flange height
  • Build-in depth
  • Weight
  • Internal volume displacement

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NOTE: VAT amount will vary based on ship-to country
Payment fees (e.g. Stripe fees) are not refundable 
All transducers are made-to-order
Expect 8-12 weeks of delivery time   
Terms and Conditions

Downloads

Data Sheet     3D Drawing     Frequency Response and Impedance Data


Description

This 8.0" is a member of the ultra low distortion extended-stroke woofer family from PURIFI. The driver incorporates the easily recognizable PURIFI NeutralSurround suspension and ultra-linear motor system PURIFI PureDrive technology working in concert to enable record-breaking linearity specifications over an extended bandwith.

The PTT8.0X04-NAB-01 features:

  • Vibroacoustic optimized cone and dust cap in black anodized aluminum
  • Negligible Force Factor Modulation (FFM) and Surround Radiation Distortion (SRD)
  • Ultra Low Magnetic Hysteresis Distortion (MHD)
  • "Real" long-stroke performance with distortion remaining low over full excursion
  • Uncompromised midrange performance
  • Designed and manufactured in Denmark

Specifications

General Specifications
Type Extended Woofer
Size 8in
Nominal impedance
Cone material Black Anodized Aluminum
Linear excursion, Xlin ±9.3mm
Maximum mechanical excursion, Xmax ±15.0mm
Motor efficiency factor, Beta 19.1 (N/A)^2/Ω
Efficiency Bandwidth Product, EBP 68.6Hz
Long term maximum power TBD
Rated noise power, 100h TBD
Electrical & Acoustical Parameter
DC resistance 6.0Ω
Minimum impedance above resonance, Zmin 6.6Ω
Frequency for minimum impedance, fmin 223Hz
Maximum impedance, Zo 100Ω
Voice Coil inductance @ 1kHz 0mm, Le 0.33mH
SPL @ 2.83Vrms/1m, 300-800Hz 86.4dB
SPL @ 1W/1m, 300-800Hz 85.6dB
Thiele/Small Paramters
Resonance frequency, fs 24Hz
Mechanical Q factor, Qms 5.8
Electrical Q factor, Qes 0.37
Total Q factor, Qts 0.35
Equivalent volume, Vas 74.5L
Effective piston area, Sd 235.1cm2
Effective piston diameter, D 17.3cm
Force factor, Bl 10.7N/A
Mechanical resistance, Rms 1.22kg/s
Moving mass, Mms 47.6g
Suspension compliance, Cms 0.95mm/N
Typical Box Tunings
Typical corner frequency, sealed B2 alignment 48.5Hz
Box volume, sealed B2 alignment 24.2L
Typical corner frequency, bass reflex PTT alignment 24.2Hz
Box resonance, bass reflex PTT alignment 26.3Hz
Box volume, bass reflex PTT alignment 67.7L
Port diameter, bass reflex PTT alignment 6.8cm
Port length, bass reflex PTT alignment 23.1cm
Typical corner frequency, 2xPR PTT alignment 27.8Hz
Box volume, 2xPR PTT alignment 54.0L
PR mass per PR, 2xPR PTT alignment 124.3g
Voice Coil Properties
Voice Coil diameter 52mm
Voice Coil length 23.6mm
Voice Coil layers 2
Airgap height 5.0mm
Winding material CU
Physical Dimensions
Basket diameter 221mm
Cutout diameter 193mm
Mounting hole pattern diameter 210mm
Mounting hole diameter 5.2mm
Magnet diameter 140mm
Outer flange height 5.0mm
Build-in depth 102.0mm
Weight 3.50kg
Internal volume displacement 0.64L