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PTT8.0X04-NAB-01

https://ptt.purifi-audio.com/web/image/product.template/1956/image_1920?unique=6730719

8.0" Ultra Low Distortion Extended Woofer

DKK 4,375.00 4375.0 DKK DKK 4,375.00 Tax Excluded

OEM Only

  • 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
  • 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
  • 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
  • Internal volume displacement

This combination does not exist.

Type Extended Woofer
Size 8in
Nominal impedance 4Ω
Cone material Black Anodized Aluminum
Linear excursion, Xlin ±9.3mm
Maximum mechanical excursion, Xmax ±15.0mm
Motor efficiency factor, Beta 18.3 (N*A)^2/Ω
Efficiency Bandwidth Product, EBP 72.2Hz
Long term maximum power 350W
Rated noise power, 100h 90W
DC resistance 3.5Ω
Minimum impedance above resonance, Zmin 3.8Ω
Frequency for minimum impedance, fmin 241Hz
Maximum impedance, Zo 52Ω
Voice Coil inductance @ 1kHz 0mm, Le 0.18mH
SPL @ 2.83Vrms/1m, 300-800Hz 89.3dB
SPL @ 1W/1m, 300-800Hz 86.1dB
Resonance frequency, fs 26Hz
Mechanical Q factor, Qms 5.3
Electrical Q factor, Qes 0.38
Total Q factor, Qts 0.36
Equivalent volume, Vas 70.4L
Effective piston area, Sd 235.1cm2
Effective piston diameter, D 17.3cm
Force factor, Bl 8.0N/A
Mechanical resistance, Rms 1.32kg/s
Moving mass, Mms 43.2g
Suspension compliance, Cms 0.90mm/N
Typical corner frequency, sealed B2 alignment 51.1Hz
Box volume, sealed B2 alignment 24.6L
Typical corner frequency, bass reflex PTT alignment 25.3Hz
Box resonance, bass reflex PTT alignment 27.6Hz
Box volume, bass reflex PTT alignment 69.0L
Port diameter, bass reflex PTT alignment 6.9cm
Port length, bass reflex PTT alignment 21.6cm
Typical corner frequency, 2xPR PTT alignment 29.3Hz
Box volume, 2xPR PTT alignment 54.7L
PR mass per PR, 2xPR PTT alignment 112.6g
Voice Coil diameter 52mm
Voice Coil length 23.6mm
Voice Coil layers 2
Airgap height 5.0mm
Winding material CCAW
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
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Payment fees (e.g. Stripe fees) are not refundable 
All transducers are made-to-order
Expect 8-12 weeks of delivery time   
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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