Hornresp
.txt · Hornresp driver database
Driver file ready to place in Hornresp’s Drivers folder.
Download for HornrespPurifi PTT5.25X04-NAA-05 4Ω
LF DriverMedia
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Overview
LF DriverPTT series
Purifi
Purifi PTT5.25X04-NAA-05
Purifi PTT5.25X04-NAA-05 is a 5.25" 4 ohm LF driver rated at 70W RMS. The validated T/S data includes Fs 29Hz, Qts 0.27, Vas 11.8L, Xmax 9.8mm, sensitivity 82.1dB, plus 83cm³ Vd and 104 EBP. bits tracks vendor pricing, datasheet links, simulator import data, and similar drivers from the same loudspeaker database.
Size
5.25"
Impedance
4Ω
RMS Power
70W
Sensitivity
82.1dB
84.9dBmanufacturer; using T/S-derived value (2.8dB delta).
EBP
104
Vented alignment
Vd
83cm³
T/S Parameters
Valid
Fs29Hz
Qts0.27
Qes0.28
Qms5.9
Vas11.8L
Re3.6Ω
Le0.37mH
BL7.9Tm
Sd85cm²
Mms26g
Xmax9.8mm
SPL82dB
Power70W
Impedance4Ω
Min Impedance4.3Ω
Voice Coil39mm
Pricing & availability
Price definitionsVendor offers
1 vendorsoundimports
Updated 11 Sept 2026
Source: inc VAT
£343.63
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
Weight1.8kg
Diameter147.0mm
Cutout Diameter121.0mm
Bolt Circle Diameter138.0mm
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
PTT5.25X04-NAA-05
5.25"
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.
8 matches
Compare a specific driver
Added drivers stay at the front of the list, whatever the ranges say.
90%
Similarity
Purifi
PTT5.25X08-NFA-01
5.25"
Xmax9.8mm0%
Qts0.270%
BL9Tm+14%
Vas13.2L+12%
Qes0.280%
85%
Similarity
Purifi
PTT5.25X04-NFA-01
5.25"
Xmax9.8mm0%
Qts0.24-11%
BL7.9Tm0%
Vas13L+10%
Qes0.25-11%
78%
Similarity
Purifi
PTT5.25X08-NAA-05
5.25"
Xmax9.8mm0%
Qts0.3+11%
BL9.1Tm+15%
Vas12.4L+5%
Qes0.32+14%
60%
Similarity
£24.81
SB Acoustics
SB13PFCR25-4
5"
Xmax9mm-8%
Qts0.29+7%
BL5.3Tm-33%
Vas13.4L+14%
Qes0.33+18%
59%
Similarity
£139.69
SB Acoustics
MW13P-8
5"
Xmax10mm+2%
Qts0.3+11%
BL5.7Tm-28%
Vas15L+27%
Qes0.33+18%
57%
Similarity
£139.69
SB Acoustics
MW13PNW-8
5"
Xmax10mm+2%
Qts0.31+15%
BL5.7Tm-28%
Vas15L+27%
Qes0.33+18%
54%
Similarity
£233.59
SB Acoustics
MW13TX-8
5"
Xmax10mm+2%
Qts0.32+19%
BL5.7Tm-28%
Vas14.8L+25%
Qes0.34+21%
46%
Similarity
£24.81
SB Acoustics
SB13PFCR25-8
5"
Xmax9mm-8%
Qts0.33+22%
BL6.2Tm-22%
Vas13.4L+14%
Qes0.39+39%