Hornresp
.txt · Hornresp driver database
Driver file ready to place in Hornresp’s Drivers folder.
Download for HornrespMedia
Auto-advancing
Overview
LF Driver
Eighteen Sound
Eighteen Sound 21ID
Eighteen Sound 21ID is a 21" 2 ohm LF driver rated at 1800W RMS. The validated T/S data includes Fs 38Hz, Qts 0.23, Vas 143L, Xmax 14mm, sensitivity 97.2dB, plus 2324cm³ Vd and 158 EBP. bits tracks vendor pricing, datasheet links, simulator import data, and similar drivers from the same loudspeaker database.
Size
21"
Impedance
2Ω
RMS Power
1800W
Sensitivity
97.2dB
94.2dBmanufacturer; using T/S-derived value (3.0dB delta).
EBP
158
Vented alignment
Vd
2324cm³
Datasheet traces
Frequency and impedance curves traced from the manufacturer PDF.
frequency response99 ptsp2medium
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
frequency response
Frequency response
99 plotted pointsMedium confidence670 selected pixels of 1,218 - Trace datasheet-response-trace-poc/v1
impedance
Impedance response
239 plotted pointsMedium confidence846 selected pixels of 1,310
T/S Parameters
Valid
Fs38Hz
Qts0.23
Qes0.24
Qms5.6
Vas143.0L
Re1.3Ω
Le1.08mH
BL25.2Tm
Sd1660cm²
Mms489g
Xmax14.0mm
SPL97dB
Power1800W
Power Nominal1800W
Impedance2Ω
F Low29Hz
F High1600Hz
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
Weight13.6kg
Diameter545.0mm
Overall Depth250.0mm
Cutout Diameter492.0mm
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
Eighteen Sound
21ID
21"
Compare on
Matches sit inside every range. Size stays fixed automatically.
5 active T/S params, plus size.
1 match
Compare a specific driver
Added drivers stay at the front of the list, whatever the ranges say.
66%
Similarity
£497.00
B&C
21DS115
21"
Xmax15mm+7%
Qts0.21-9%
BL28.6Tm+13%
Vas219L+53%
Qes0.22-8%