Hornresp
.txt · Hornresp driver database
Driver file ready to place in Hornresp’s Drivers folder.
Download for HornrespPurifi PTT4.0X04-NAC-03 4Ω
LF DriverMedia
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Overview
LF DriverPTT series
Purifi
Purifi PTT4.0X04-NAC-03
Purifi PTT4.0X04-NAC-03 is a 4" 4 ohm LF driver rated at 60W RMS. The validated T/S data includes Fs 40Hz, Qts 0.31, Vas 5.5L, Xmax 8.8mm, sensitivity 82.2dB, plus 50cm³ Vd and 118 EBP. bits tracks vendor pricing, datasheet links, simulator import data, and similar drivers from the same loudspeaker database.
Size
4"
Impedance
4Ω
RMS Power
60W
Sensitivity
82.2dB
83.9dBmanufacturer; using T/S-derived value (1.7dB delta).
EBP
118
Vented alignment
Vd
50cm³
T/S Parameters
Valid
Fs40Hz
Qts0.31
Qes0.34
Qms3.8
Vas5.5L
Re3.8Ω
Le0.38mH
BL6.1Tm
Sd57cm²
Mms13g
Xmax8.8mm
SPL82dB
Power60W
Impedance4Ω
Min Impedance4.4Ω
Voice Coil30mm
Pricing & availability
Price definitionsVendor offers
1 vendorsoundimports
Updated 11 Sept 2026
Source: inc VAT
£257.71
inc VAT
Out of stock
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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.
Download for WinISDBASTA!
.bastaelement · BASTA! loudspeaker simulator
Native BASTA! element file using its documented SI-unit fields.
Download for BASTA!VituixCAD
.wdr · VituixCAD 2 Enclosure
A WinISD driver file that VituixCAD imports directly.
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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
PTT4.0X04-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.
7 matches
Compare a specific driver
Added drivers stay at the front of the list, whatever the ranges say.
90%
Similarity
Purifi
PTT4.0X04-NFC-01
4"
Xmax8.8mm0%
Qts0.3-3%
BL6Tm-2%
Vas6.4L+16%
Qes0.32-6%
76%
Similarity
£23.67
SB Acoustics
SB12PAC25-4
4"
Xmax10mm+14%
Qts0.310%
BL4.3Tm-29%
Vas5.3L-4%
Qes0.33-3%
76%
Similarity
£23.67
SB Acoustics
SB12PACR25-4
4"
Xmax10mm+14%
Qts0.310%
BL4.3Tm-29%
Vas5.3L-4%
Qes0.33-3%
76%
Similarity
£58.31
SB Acoustics
SB12CACS25-4
4"
Xmax10mm+14%
Qts0.310%
BL4.3Tm-30%
Vas5.7L+4%
Qes0.33-3%
72%
Similarity
Purifi
PTT4.0X08-NFC-01
4"
Xmax8.8mm0%
Qts0.37+19%
BL6.9Tm+13%
Vas5.7L+4%
Qes0.41+21%
65%
Similarity
£45.28
SB Acoustics
SB12NRX25-8
4"
Xmax10mm+14%
Qts0.37+19%
BL5.4Tm-11%
Vas5.3L-4%
Qes0.41+21%
60%
Similarity
£58.31
SB Acoustics
SB12CACS25-8
4"
Xmax10mm+14%
Qts0.37+19%
BL5.2Tm-15%
Vas6.5L+18%
Qes0.4+18%