Hornresp
.txt · Hornresp driver database
Driver file ready to place in Hornresp’s Drivers folder.
Download for HornrespSica 21 S 4 PL 8Ω
LF DriverMedia
Auto-advancing
Overview
LF Driver
Sica
Sica 21 S 4 PL
Sica 21 S 4 PL is a 21" 8 ohm LF driver rated at 1200W RMS. The validated T/S data includes Fs 35Hz, Qts 0.30, Vas 255L, Xmax 5.2mm, sensitivity 97.4dB, plus 864cm³ Vd and 112 EBP. bits tracks vendor pricing, datasheet links, simulator import data, and similar drivers from the same loudspeaker database.
Size
21"
Impedance
8Ω
RMS Power
1200W
Sensitivity
97.4dB
98.8dBmanufacturer; using T/S-derived value (1.4dB delta).
EBP
112
Vented alignment
Vd
864cm³
T/S Parameters
Valid
Fs35Hz
Qts0.30
Qes0.31
Qms9.9
Vas255.0L
Re5.7Ω
Le1.60mH
BL36.1Tm
Sd1662cm²
Mms325g
Xmax5.2mm
SPL97dB
Power1200W
Impedance8Ω
Voice Coil100mm
Flux Density0.89T
Pricing & availability
Price definitionsNo standard offers found
Check the manufacturer website for current pricing.
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
Weight10.5kg
Diameter545.0mm
Overall Depth249.0mm
Cutout Diameter497.0mm
Bolt Circle Diameter520.0mm
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
Sica
21 S 4 PL
21"
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.
Loading matches