REDCATT5FHW
£15.86Fs50 Hz +4%
Qts0.35 +13%, worse
Vas6.5 L +24%, worse
BL6.5 T·m −6%
Xmax3.2 mm +10%, better
Sensitivity85.4 dB +0.9
4-inch LF driver · PTT series · 30 mm voice coil
Purifi PTT4.0M08-NFC-01 8Ω
8 Ω
No current price
- Fs
- 48Hz
- Xmax
- 2.9mm
- SPL
- 85dB
- Pe
- –
- BL
- 7T·m
- Vd
- 16cm³
- Qts
- 0.31
- Vas
- 5L
Purifi PTT4.0M08-NFC-01 is a 4-inch 8 ohm LF driver. The validated T/S data includes Fs 48 Hz, Qts 0.31, Vas 5.3 L, Xmax 2.9 mm, sensitivity 84.5 dB, plus 16 cm³ Vd and 145 EBP. bits tracks vendor pricing, datasheet links, simulator import data, and similar drivers from the same loudspeaker database.
The published T/S values agree with each other
Thiele/Small
- Fs
- 48Hz
- Qts
- 0.31
- Qes
- 0.33
- Qms
- 5
- Vas
- 5.3L
- Re
- 5.8Ω
- Le
- 0.37mH
Motor and cone
- BL
- 7T·m
- Sd
- 57cm²
- Mms
- 9g
- Xmax
- 2.9mm
- Vd †
- 16cm³
- Voice coil
- 30mm
Power and response
- Sensitivity †
- 84.5dB
- Manufacturer sensitivity
- 85.4dB
- Impedance
- 8Ω
- Min. impedance
- 6Ω
- EBP †
- 145 · Leans vented
Size and mounting
- Diameter
- 125mm
- Cutout
- 101mm
- Bolt circle
- 115mm
- Weight
- 1.3kg
Other published values
- Cms
- 1.17mm/N
- Rms
- 0.57kg/s
- Xmech
- 13.7
Other dimensions
- Mounting Depth
- 73.5
† Calculated by bits from the published values
What this validation status means
Everything else Purifi lists
MF · Primary · 4″
- BL
- 7T·m
- Fs
- 48Hz
- Le
- 0.37mH
- Re
- 5.8Ω
- Sd
- 57cm²
- Cms
- 1.17mm/N
- Mms
- 9g
- Qes
- 0.33
- Qms
- 5
- Qts
- 0.31
- Rms
- 0.57kg/s
- SPL
- 84.5dB
- Vas
- 5.3L
- Xmax
- 2.9mm
- Xmech
- 13.7
- Impedance
- 8Ω
- Sensitivity
- 85.4dB
- Calculated sensitivity †
- 84.5dB
- Manufacturer sensitivity
- 85.4dB
- Min. impedance
- 6Ω
- Voice coil
- 30mm
- Weight
- 1.3kg
- Diameter
- 125mm
- Mounting Depth
- 73.5
- Cutout
- 101mm
- Bolt circle
- 115mm
02
Compare
Same-size drivers, compared with the PTT4.0M08-NFC-01. Clear differences are green when better and red when worse.
This driverPTT4.0M08-NFC-01
Best price
–
Fs
48 Hz
Qts
0.31
Vas
5.3 L
BL
7 T·m
Xmax
2.9 mm
Sensitivity
84.5 dB
Power
–
HiViF5
£23.17Fs52 Hz +8%
Qts0.33 +6%
Vas7.3 L +38%, worse
BL8.3 T·m +19%, better
Xmax2.7 mm −7%
Sensitivity86.6 dB +2.1, better
SB AcousticsSB12PAC25-4
£23.67Fs53 Hz +9%
Qts0.31 –
Vas5.3 L –
BL4.3 T·m −38%, worse
Xmax5 mm +72%, better
Sensitivity85.7 dB +1.2
SB AcousticsSB12PACR25-4
£23.67Fs53 Hz +9%
Qts0.31 –
Vas5.3 L –
BL4.3 T·m −38%, worse
Xmax5 mm +72%, better
Sensitivity85.7 dB +1.2
Sica5 F 1.5 CP
£38.51Fs61 Hz +27%, worse
Qts0.30 −3%
Vas6.8 L +28%, worse
BL7.6 T·m +8%
Xmax3.5 mm +21%, better
Sensitivity88.7 dB +4.2, better
SB AcousticsSB12MNRX2-25-4
£47.06Fs64 Hz +32%, worse
Qts0.32 +3%
Vas5.3 L –
BL3.9 T·m −44%, worse
Xmax2.2 mm −24%, worse
Sensitivity87.9 dB +3.4, better
Dayton AudioCF120-4
£52.29Fs53 Hz +11%, worse
Qts0.28 −10%
Vas4.9 L −8%
BL4.9 T·m −29%, worse
Xmax3.5 mm +21%, better
Sensitivity85.6 dB +1.1
Scanspeak12W/8524G00
£54.43Fs52 Hz +8%
Qts0.32 +3%
Vas8.2 L +55%, worse
BL5.4 T·m −23%, worse
Xmax3 mm +3%
Sensitivity87.2 dB +2.7, better
Tang BandW4-1320SIF
£57.77Fs75 Hz +56%, worse
Qts0.36 +16%, worse
Vas5.2 L –
BL5.3 T·m −24%, worse
Xmax3 mm +3%
Sensitivity89.2 dB +4.7, better
SB AcousticsSB12CACS25-4
£58.31Fs51 Hz +6%
Qts0.31 –
Vas5.7 L +8%
BL4.3 T·m −39%, worse
Xmax5 mm +72%, better
Sensitivity85.6 dB +1.1
Beyma5P200FE
£63.23Fs72 Hz +50%, worse
Qts0.33 +6%
Vas5.7 L +8%
BL8.5 T·m +21%, better
Xmax5.7 mm +97%, better
Sensitivity89.9 dB +5.4, better
Tang BandW4-1337SDF
£71.17Fs70 Hz +46%, worse
Qts0.34 +10%
Vas5.6 L +6%
BL5.3 T·m −24%, worse
Xmax2.5 mm −14%, worse
Sensitivity88.9 dB +4.4, better
SEASH1152-08 CA12RCY
£79.46Fs57 Hz +19%, worse
Qts0.31 –
Vas5 L −6%
BL6.3 T·m −9%
Xmax3 mm +3%
Sensitivity86.1 dB +1.6
SB AcousticsMR13PNW-8
£115.00Fs47 Hz –
Qts0.30 −3%
Vas12.9 L +143%, worse
BL6.2 T·m −11%, worse
Xmax3 mm +3%
Sensitivity88.2 dB +3.7, better
SB AcousticsMR13P-8
£135.77Fs45 Hz −6%
Qts0.31 –
Vas12.5 L +136%, worse
BL6.1 T·m −13%, worse
Xmax3 mm +3%
Sensitivity87.4 dB +2.9, better
Tang BandW4-2315
£175.00Fs65 Hz +35%, worse
Qts0.29 −6%
Vas5.0 L −6%
BL6.2 T·m −11%, worse
Xmax2.8 mm −3%
Sensitivity88.5 dB +4, better
PurifiPTT4.0M08-NAC-03
£251.15Fs50 Hz +4%
Qts0.32 +3%
Vas4.9 L −8%
BL7 T·m –
Xmax2.9 mm –
Sensitivity84.6 dB –
PurifiPTT4.0X04-NFC-01
£251.15Fs38 Hz −21%, better
Qts0.30 −3%
Vas6.4 L +21%, worse
BL6 T·m −14%, worse
Xmax8.8 mm +203%, better
Sensitivity82.4 dB −2.1, worse
Scanspeak12MU/8731T00
£263.71Fs66 Hz +38%, worse
Qts0.29 −6%
Vas5.8 L +9%
BL6.1 T·m −13%, worse
Xmax3.4 mm +17%, better
Sensitivity89.3 dB +4.8, better
PurifiPTT4.0M04-NAC-03
No current priceFs48 Hz –
Qts0.28 −10%
Vas5 L −6%
BL5.9 T·m −16%, worse
Xmax2.9 mm –
Sensitivity84.7 dB –
Tang BandW4-657D
No current priceFs70 Hz +46%, worse
Qts0.32 +3%
Vas5.6 L +6%
BL5.6 T·m −20%, worse
Xmax3.3 mm +14%, better
Sensitivity89.4 dB +4.9, better
PurifiPTT4.0X04-NAC-03
No current priceFs40 Hz −17%, better
Qts0.31 –
Vas5.5 L +4%
BL6.1 T·m −13%, worse
Xmax8.8 mm +203%, better
Sensitivity82.2 dB −2.3, worse
PurifiPTT4.0M04-NFC-01
No current priceFs46 Hz −4%
Qts0.25 −19%, better
Vas5.4 L –
BL6 T·m −14%, worse
Xmax2.9 mm –
Sensitivity84.9 dB –
Tang BandW4-1798S
No current priceFs60 Hz +25%, worse
Qts0.30 −3%
Vas7.4 L +40%, worse
BL5.8 T·m −18%, worse
Xmax3 mm +3%
Sensitivity88.4 dB +3.9, better
Tang BandW4-937SF
No current priceFs65 Hz +35%, worse
Qts0.26 −16%, better
Vas4.9 L −8%
BL6.7 T·m −5%
Xmax4.5 mm +55%, better
Sensitivity88.1 dB +3.6, better
HiViMY5N
No current priceFs57 Hz +19%, worse
Qts0.32 +3%
Vas7 L +32%, worse
BL7.7 T·m +10%, better
Xmax2.5 mm −14%, worse
Sensitivity87.1 dB +2.6, better
HiViBG5N
No current priceFs60 Hz +25%, worse
Qts0.33 +6%
Vas7.1 L +34%, worse
BL7.4 T·m +6%
Xmax2.5 mm −14%, worse
Sensitivity87.8 dB +3.3, better
HiViS5N
No current priceFs49 Hz –
Qts0.34 +10%
Vas8.9 L +68%, worse
BL7.7 T·m +10%, better
Xmax2.7 mm −7%
Sensitivity86.8 dB +2.3, better
HiViM5A
No current priceFs48 Hz –
Qts0.34 +10%
Vas11.2 L +111%, worse
BL7.6 T·m +9%
Xmax2.7 mm −7%
Sensitivity87.4 dB +2.9, better
Tang BandW4-992SD
No current priceFs55 Hz +15%, worse
Qts0.35 +13%, worse
Vas5.7 L +8%
BL6.4 T·m −8%
Xmax3.5 mm +21%, better
Sensitivity85.8 dB +1.3
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
No current price found. Pricing may appear after the next vendor refresh.