Hornresp
.txt · Hornresp driver database
Driver file ready to place in Hornresp’s Drivers folder.
Download for HornrespMedia
Auto-advancing
Overview
LF DriverSD21 series
P.Audio
P.Audio SD21-125XB
P.Audio SD21-125XB is a 21" 8 ohm LF driver rated at 1800W RMS. The validated T/S data includes Fs 35Hz, Qts 0.38, Vas 345.6L, Xmax 11.3mm, sensitivity 97.7dB, plus 1851cm³ Vd and 88 EBP. bits tracks vendor pricing, datasheet links, simulator import data, and similar drivers from the same loudspeaker database.
Size
21"
Impedance
8Ω
RMS Power
1800W
Sensitivity
97.7dB
96.0dBmanufacturer; using T/S-derived value (1.7dB delta).
EBP
88
Either alignment
Vd
1851cm³
T/S Parameters
Valid
Fs35Hz
Qts0.38
Qes0.40
Qms10.0
Vas345.6L
Re5.2Ω
Le1.31mH
BL30.4Tm
Sd1645cm²
Mms334g
Xmax11.3mm
SPL98dB
Power1800W
Power Nominal1800W
Impedance8Ω
F Low30Hz
F High200Hz
Voice Coil127mm
Flux Density1.20T
Pricing & availability
Price definitionsNo current price found
Pricing may appear after the next vendor refresh.
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
Diameter539.3mm
Overall Depth268.0mm
Cutout Diameter491.2mm
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
P.Audio
SD21-125XB
21"
Compare on
Matches sit inside every range. Size stays fixed automatically.
5 active T/S params, plus size.
12 matches
Compare a specific driver
Added drivers stay at the front of the list, whatever the ranges say.
81%
Similarity
£481.99
B&C
21SW115
21"
Xmax14mm+24%
Qts0.37-3%
BL30.1Tm-1%
Vas318L-8%
Qes0.39-3%
80%
Similarity
£389.00
RCF
LF21X451
21"
Xmax14mm+24%
Qts0.37-3%
BL30.5Tm0%
Vas385L+11%
Qes0.39-3%
74%
Similarity
£193.71
Dayton Audio
PSS555-8
21"
Xmax11mm-2%
Qts0.33-13%
BL29.7Tm-2%
Vas444L+28%
Qes0.34-15%
Image unavailable
71%
Similarity
£566.00
Precision Devices
PD.2155-1N
21"
Xmax14mm+24%
Qts0.36-5%
BL30Tm-1%
Vas241L-30%
Qes0.37-7%
66%
Similarity
Fane
COLOSSUS PRIME 21XS
21"
Xmax14mm+24%
Qts0.34-11%
BL31.3Tm+3%
Vas266L-23%
Qes0.35-12%
Image unavailable
66%
Similarity
Precision Devices
PD.2155-1F
21"
Xmax14mm+24%
Qts0.34-11%
BL31.3Tm+3%
Vas266L-23%
Qes0.35-12%
65%
Similarity
£481.99
B&C
21SW115
21"
Xmax14mm+24%
Qts0.36-5%
BL24.8Tm-18%
Vas278L-20%
Qes0.37-8%
64%
Similarity
£492.21
Eighteen Sound
21LW2600
21"
Xmax14.6mm+30%
Qts0.33-13%
BL32.5Tm+7%
Vas333L-4%
Qes0.34-15%
60%
Similarity
£449.00
Celestion
NTR21-5010JD
21"
Xmax9mm-20%
Qts0.32-16%
BL33.9Tm+11%
Vas276.7L-20%
Qes0.34-15%
49%
Similarity
£576.21
Eighteen Sound
21NLW9001
21"
Xmax14mm+24%
Qts0.31-18%
BL37Tm+22%
Vas244L-29%
Qes0.34-15%
46%
Similarity
Beyma
121LEX16ND8
21"
Xmax14mm+24%
Qts0.29-24%
BL36.6Tm+20%
Vas305L-12%
Qes0.3-25%
39%
Similarity
£699.33
Eighteen Sound
21NLW9601C
21"
Xmax14mm+24%
Qts0.29-24%
BL33.2Tm+9%
Vas140L-59%
Qes0.31-23%