Hornresp
.txt · Hornresp driver database
Driver file ready to place in Hornresp’s Drivers folder.
Download for HornrespMonacor SPX-21M 4Ω
LF DriverMedia
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Overview
LF DriverSPX series
Monacor
Monacor SPX-21M
Monacor SPX-21M is a 2" 4 ohm LF driver rated at 12W RMS. The validated T/S data includes Fs 170Hz, Qts 0.47, Vas 0.1L, Xmax 1.2mm, sensitivity 81.7dB, plus 2cm³ Vd and 321 EBP. bits tracks vendor pricing, datasheet links, simulator import data, and similar drivers from the same loudspeaker database.
Size
2"
Impedance
4Ω
RMS Power
12W
Sensitivity
81.7dB
84.0dBmanufacturer; using T/S-derived value (2.3dB delta).
EBP
321
Vented alignment
Vd
2cm³
T/S Parameters
Valid
Fs170Hz
Qts0.47
Qes0.53
Qms4.7
Vas0.1L
Re3.7Ω
Le0.12mH
BL3.3Tm
Sd13cm²
Mms1g
Xmax1.2mm
SPL82dB
Power12W
Impedance4Ω
F Low3Hz
F High22000Hz
Voice Coil20mm
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
Weight90.0kg
Diameter55.5mm
Overall Depth34.0mm
Cutout Diameter50.5mm
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
Monacor
SPX-21M
2"
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.
59%
Similarity
£51.51
Fountek
FR59EXE
2"
Xmax1.4mm+17%
Qts0.36-23%
BL3Tm-10%
Vas0.1L+50%
Qes0.48-9%