Hornresp
.txt · Hornresp driver database
Driver file ready to place in Hornresp’s Drivers folder.
Download for HornrespSB Acoustics SB20PFCS30-7 7Ω
LF DriverMedia
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Overview
LF DriverSB20 series
SB Acoustics
SB Acoustics SB20PFCS30-7
SB Acoustics SB20PFCS30-7 is a 8" 7 ohm LF driver rated at 40W RMS. The validated T/S data includes Fs 39Hz, Qts 0.66, Vas 59.5L, Xmax 11mm, sensitivity 88.6dB, plus 244cm³ Vd and 51 EBP. bits tracks UK vendor pricing, price movement, datasheet links, simulator import data, and similar drivers, with a current best price of £31.91.
Size
8"
Impedance
7Ω
RMS Power
40W
Sensitivity
88.6dB
EBP
51
Either alignment
Vd
244cm³
Datasheet traces
Frequency and impedance curves traced from the manufacturer PDF.
30 degrees240 ptsp1medium
60 degrees222 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 confidence1,533 selected pixels of 3,407 - Trace datasheet-response-trace-poc/v1
60 degrees
Frequency response
222 plotted pointsMedium confidence849 selected pixels of 2,757 - Trace datasheet-response-trace-poc/v1
impedance
Impedance response
240 plotted pointsMedium confidence1,731 selected pixels of 4,848
Frequency response
Manufacturer-provided response plots and related charts.
T/S Parameters
Valid
Fs39Hz
Qts0.66
Qes0.77
Qms4.5
Vas59.5L
Re5.0Ω
Le0.95mH
BL5.6Tm
Sd222cm²
Mms20g
Xmax11.0mm
SPL89dB
Power40W
Impedance7Ω
Voice Coil31mm
Flux Density0.91T
Pricing & availability
Price definitionsPrice movement
Other offers
1 vendorsoundimports
Updated 11 Sept 2026
Source: inc VAT
£36.90
inc VAT
Out of stock
Best current price
Updated 11 Sept 2026
leanaudio
£31.91
inc VAT·2 in 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.
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
Weight1.0kg
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
SB20PFCS30-7
8"
Best current price
£31.91
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.
4 matches
Compare a specific driver
Added drivers stay at the front of the list, whatever the ranges say.
84%
Similarity
19% cheaper£26.00
Visaton
W 200
8"
Lower price
Xmax10mm-9%
Qts0.63-5%
BL5.9Tm+5%
Vas51L-14%
Qes0.79+3%
84%
Similarity
7% cheaper£29.76
Visaton
W 200 - 8 OHM
8"
Lower price
Xmax10mm-9%
Qts0.63-5%
BL5.9Tm+5%
Vas51L-14%
Qes0.79+3%
78%
Similarity
Visaton
W 200 - 4 OHM
8"
Xmax10mm-9%
Qts0.63-5%
BL4.2Tm-25%
Vas54L-9%
Qes0.770%
53%
Similarity
Tang Band
W8-1722B
8"
Xmax9mm-18%
Qts0.51-23%
BL6.2Tm+11%
Vas46.3L-22%
Qes0.58-25%