Hornresp
.txt · Hornresp driver database
Driver file ready to place in Hornresp’s Drivers folder.
Not enough T/S data
Missing RMS power
Purifi PTT4.0M08-NAC-03 8Ω
LF DriverMedia
Auto-advancing
Overview
LF DriverPTT series
Purifi
Purifi PTT4.0M08-NAC-03
Purifi PTT4.0M08-NAC-03 is a 4" 8 ohm LF driver. The validated T/S data includes Fs 50Hz, Qts 0.32, Vas 4.9L, Xmax 2.9mm, sensitivity 84.6dB, plus 16cm³ Vd and 147 EBP. bits tracks vendor pricing, datasheet links, simulator import data, and similar drivers from the same loudspeaker database.
Size
4"
Impedance
8Ω
Sensitivity
84.6dB
EBP
147
Vented alignment
Vd
16cm³
T/S Parameters
Valid
Fs50Hz
Qts0.32
Qes0.34
Qms4.7
Vas4.9L
Re5.6Ω
Le0.36mH
BL7.0Tm
Sd57cm²
Mms10g
Xmax2.9mm
SPL85dB
Impedance8Ω
Min Impedance6.0Ω
Voice Coil30mm
Pricing & availability
Price definitionsVendor offers
1 vendorsoundimports
Updated 11 Sept 2026
Source: inc VAT
£257.71
inc VAT
Out of stock
Use this driver
Open it in 00 Simulator, download it for your enclosure tool, or copy the specification values.
Files use canonical values. Required mechanical fields are derived only where the target format needs them.
WinISD
.wdr · WinISD driver editor
Native WinISD driver record with the required SI conversions.
Not enough T/S data
Missing RMS power
BASTA!
.bastaelement · BASTA! loudspeaker simulator
Native BASTA! element file using its documented SI-unit fields.
Not enough T/S data
Missing RMS power
VituixCAD
.wdr · VituixCAD 2 Enclosure
A WinISD driver file that VituixCAD imports directly.
Not enough T/S data
Missing RMS power
00 Simulator
Direct import · Web app
Start a new enclosure simulation with this driver already loaded.
Open in 00 SimulatorCopy spec sheet
Plain text · Clipboard
Copy the available values as a clean label-and-value list.
Dimensions & Physical
Weight1.3kg
Diameter125.0mm
Cutout Diameter101.0mm
Bolt Circle Diameter115.0mm
Similar Drivers
Size stays fixed. Tune the T/S ranges to change what counts as a match, or add a specific driver to compare it directly.
Reference
Purifi
PTT4.0M08-NAC-03
4"
Compare on
Matches sit inside every range. Size stays fixed automatically.
5 active T/S params, plus size. Pin a driver to open a side-by-side comparison.
12 matches
Compare a specific driver
Added drivers stay at the front of the list, whatever the ranges say.
94%
Similarity
Purifi
PTT4.0M08-NFC-01
4"
Xmax2.9mm0%
Qts0.31-3%
BL7Tm0%
Vas5.3L+8%
Qes0.33-3%
83%
Similarity
Tang Band
W4-2315
4"
Xmax2.8mm-3%
Qts0.29-9%
BL6.2Tm-11%
Vas5L+1%
Qes0.31-9%
80%
Similarity
SEAS
H1152-08 CA12RCY
4.5"
Xmax3mm+3%
Qts0.31-3%
BL6.3Tm-9%
Vas5L+2%
Qes0.36+6%
79%
Similarity
Purifi
PTT4.0M04-NAC-03
4"
Xmax2.9mm0%
Qts0.28-12%
BL5.9Tm-16%
Vas5L+2%
Qes0.3-12%
78%
Similarity
Tang Band
W4-657D
4"
Xmax3.3mm+14%
Qts0.320%
BL5.6Tm-20%
Vas5.6L+14%
Qes0.35+3%
68%
Similarity
Tang Band
W4-1798S
4"
Xmax3mm+3%
Qts0.3-6%
BL5.8Tm-18%
Vas7.4L+51%
Qes0.37+9%
68%
Similarity
Tang Band
W4-1798S
4"
Xmax3mm+3%
Qts0.3-6%
BL5.8Tm-18%
Vas7.4L+51%
Qes0.37+9%
68%
Similarity
Purifi
PTT4.0M04-NFC-01
4"
Xmax2.9mm0%
Qts0.25-22%
BL6Tm-14%
Vas5.4L+10%
Qes0.27-21%
67%
Similarity
Tang Band
W4-1320SIF
4"
Xmax3mm+3%
Qts0.36+12%
BL5.3Tm-24%
Vas5.2L+7%
Qes0.42+24%
67%
Similarity
Tang Band
W4-992SD
4"
Xmax3.5mm+21%
Qts0.35+9%
BL6.4Tm-8%
Vas5.7L+17%
Qes0.4+18%
66%
Similarity
£82.80
Tang Band
W4-1337SDF
4"
Xmax2.5mm-14%
Qts0.34+6%
BL5.3Tm-24%
Vas5.6L+14%
Qes0.4+18%
64%
Similarity
SEAS
H1602-04/06 L12RE/XFC
4.5"
Xmax3mm+3%
Qts0.3-6%
BL5.5Tm-21%
Vas3L-39%
Qes0.33-3%