Hornresp
.txt · Hornresp driver database
Driver file ready to place in Hornresp’s Drivers folder.
Download for HornrespSB Acoustics SB23NBACS45-4 4Ω
LF DriverMedia
Overview
LF DriverSB23 series
SB Acoustics
SB Acoustics SB23NBACS45-4
SB Acoustics SB23NBACS45-4 is a 8" 4 ohm LF driver rated at 60W RMS. The validated T/S data includes Fs 23Hz, Qts 0.33, Vas 95L, Xmax 13mm, sensitivity 87.2dB, plus 281cm³ Vd and 66 EBP. bits tracks UK vendor pricing, price movement, datasheet links, simulator import data, and similar drivers, with a current best price of £98.70.
Size
8"
Impedance
4Ω
RMS Power
60W
Sensitivity
87.2dB
90.0dBmanufacturer; using T/S-derived value (2.8dB delta).
EBP
66
Either alignment
Vd
281cm³
Datasheet traces
Frequency and impedance curves traced from the manufacturer PDF.
30 degrees240 ptsp1medium
60 degrees206 ptsp1medium
Curve provenanceInspect 2 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 confidence2,622 selected pixels of 7,887 - Trace datasheet-response-trace-poc/v1
60 degrees
Frequency response
206 plotted pointsMedium confidence767 selected pixels of 3,291
T/S Parameters
Valid
Fs23Hz
Qts0.33
Qes0.35
Qms5.4
Vas95.0L
Re3.3Ω
Le0.27mH
BL6.7Tm
Sd216cm²
Mms32g
Xmax13.0mm
SPL87dB
Power60W
Impedance4Ω
Voice Coil46mm
Flux Density0.86T
Pricing & availability
Price definitionsPrice movement
Other offers
3 vendorsleanbusiness
Updated 17 May 2026· 4Ω
Source: inc VAT · 20%
£98.70
inc VAT
soundimports
Updated 11 Sept 2026· 4Ω
Source: inc VAT
£111.65
inc VAT
Out of stock
willyshifi
Updated 11 Sept 2026· 4Ω
Source: inc VAT · 20%
£115.95
inc VAT
Best current price
Updated 11 Sept 2026
leanaudio
£98.70
Avg £104.45£5.75 below avg (-5.5%)
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
Weight2.7kg
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
SB23NBACS45-4
8"
Best current price
£98.70
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.
82%
Similarity
68% cheaper£31.27
SB Acoustics
SB20PFCR30-4
8"
Lower price
Xmax11.5mm-12%
Qts0.330%
BL6.6Tm-1%
Vas66.2L-30%
Qes0.37+6%
60%
Similarity
65% cheaper£34.95
SB Acoustics
SB20PFCR30-8
8"
Lower price
Xmax11.5mm-12%
Qts0.37+12%
BL7.7Tm+15%
Vas66.2L-30%
Qes0.43+23%
63%
Similarity
40% cheaper£58.80
Visaton
W 200 S - 4 OHM
8"
Lower price
Xmax10mm-23%
Qts0.35+6%
BL7.7Tm+15%
Vas65L-32%
Qes0.38+9%
62%
Similarity
32% cheaper£67.14
Visaton
W 200 S - 8 OHM
8"
Lower price
Xmax10mm-23%
Qts0.330%
BL9Tm+34%
Vas70L-26%
Qes0.36+3%
87%
Similarity
14% cheaper£84.41
SB Acoustics
SB23NRXS45-4
8"
Lower price
Xmax13mm0%
Qts0.3-9%
BL6.9Tm+3%
Vas87.5L-8%
Qes0.32-9%
76%
Similarity
14% cheaper£84.41
SB Acoustics
SB23NRXS45-8
8"
Lower price
Xmax13mm0%
Qts0.38+15%
BL7.5Tm+12%
Vas94L-1%
Qes0.41+17%
67%
Similarity
£98.70
SB Acoustics
SB23NBACS45-8
8"
Xmax13mm0%
Qts0.4+21%
BL7.9Tm+18%
Vas93.4L-2%
Qes0.43+23%
100%
Similarity
16% more£114.02
SB Acoustics
SB23CACS45-4
8"
Higher price
Xmax13mm0%
Qts0.330%
BL6.7Tm0%
Vas95L0%
Qes0.350%
64%
Similarity
16% more£114.02
SB Acoustics
SB23CACS45-8
8"
Higher price
Xmax13mm0%
Qts0.4+21%
BL7.9Tm+18%
Vas87L-8%
Qes0.44+26%
58%
Similarity
79% more£176.73
Visaton
AL 200
8"
Higher price
Xmax10mm-23%
Qts0.35+6%
BL8.8Tm+31%
Vas77L-19%
Qes0.39+11%
53%
Similarity
98% more£194.95
SB Acoustics
MW19P-8
7"
Higher price
Xmax13.4mm+3%
Qts0.29-12%
BL7.7Tm+15%
Vas61L-36%
Qes0.32-9%
53%
Similarity
98% more£194.95
SB Acoustics
MW19PNW-8
7"
Higher price
Xmax13.4mm+3%
Qts0.29-12%
BL7.7Tm+15%
Vas61L-36%
Qes0.32-9%