Hornresp
.txt · Hornresp driver database
Driver file ready to place in Hornresp’s Drivers folder.
Download for HornrespSB Acoustics SB65WBAC25-4 4Ω
LF DriverMedia
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Overview
LF DriverSB65 series
SB Acoustics
SB Acoustics SB65WBAC25-4
SB Acoustics SB65WBAC25-4 is a 2" 4 ohm LF driver rated at 20W RMS. The validated T/S data includes Fs 115Hz, Qts 0.68, Vas 0.4L, Xmax 5.3mm, sensitivity 81.3dB, plus 11cm³ Vd and 149 EBP. bits tracks UK vendor pricing, price movement, datasheet links, simulator import data, and similar drivers, with a current best price of £32.95.
Size
2"
Impedance
4Ω
RMS Power
20W
Sensitivity
81.3dB
83.5dBmanufacturer; using T/S-derived value (2.2dB delta).
EBP
149
Vented alignment
Vd
11cm³
Datasheet traces
Frequency and impedance curves traced from the manufacturer PDF.
30 degrees240 ptsp1medium
60 degrees240 ptsp1medium
Curve provenanceInspect 3 tracesHide details
These plotted lines are Bits digitizations of manufacturer evidence, not new measurements. How provenance works
- Trace datasheet-response-trace-poc/v1
30 degrees
Frequency response
240 plotted pointsMedium confidence892 selected pixels of 2,160 - Trace datasheet-response-trace-poc/v1
60 degrees
Frequency response
240 plotted pointsMedium confidence830 selected pixels of 1,942 - Trace datasheet-response-trace-poc/v1
impedance
Impedance response
240 plotted pointsMedium confidence2,059 selected pixels of 4,408
T/S Parameters
Valid
Fs115Hz
Qts0.68
Qes0.77
Qms6.0
Vas0.4L
Re3.6Ω
Le0.15mH
BL2.9Tm
Sd20cm²
Mms3g
Xmax5.3mm
SPL81dB
Power20W
Impedance4Ω
Voice Coil25mm
Flux Density1.02T
Pricing & availability
Price definitionsPrice movement
Other offers
1 vendorsoundimports
Updated 11 Sept 2026· 4Ω
Source: inc VAT
£28.74
inc VAT
Out of stock
Best current price
Updated 11 Sept 2026
willyshifi
£32.95
inc VAT
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.
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.
Download for VituixCAD00 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
Weight0.1kg
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
SB Acoustics
SB65WBAC25-4
2"
Best current price
£32.95
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.
1 match
Compare a specific driver
Added drivers stay at the front of the list, whatever the ranges say.
64%
Similarity
Dayton Audio
CE70PR-6
2.5"
Xmax4mm-25%
Qts0.63-7%
BL3.1Tm+7%
Vas0.5L+22%
Qes0.770%