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bits.00aud.io by 00 Audio

Eighteen Sound 21LW2600 4Ω

LF Driver
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Media

Eighteen Sound 21LW2600 21 inch 4 ohm loudspeaker driver view 1
Eighteen Sound 21LW2600 21 inch 4 ohm loudspeaker driver view 2
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Overview

LF Driver
Eighteen Sound

Eighteen Sound 21LW2600

Eighteen Sound 21LW2600 is a 21" 4 ohm LF driver rated at 1600W RMS. The validated T/S data includes Fs 27Hz, Qts 0.29, Vas 332L, Xmax 14.6mm, sensitivity 95.6dB, plus 2426cm³ Vd and 93 EBP. bits tracks vendor pricing, datasheet links, simulator import data, and similar drivers from the same loudspeaker database.

Size
21"
Impedance
4Ω
RMS Power
1600W
Sensitivity
95.6dB
97.0dBmanufacturer; using T/S-derived value (1.4dB delta).
EBP
93
Either alignment
Vd
2426cm³
Datasheet

Datasheet traces

Frequency and impedance curves traced from the manufacturer PDF.

2 curves
86827773695k10kHzdBfrequency response
frequency response95 ptsp2medium
Curve provenanceInspect 2 tracesHide details

These plotted lines are Bits digitizations of manufacturer evidence, not new measurements. How provenance works

  • frequency response

    Frequency response

    Trace datasheet-response-trace-poc/v2
    95 plotted pointsSource file SHA-256 4ac24f3e21e1…Medium confidence193 selected pixels of 595
    Manufacturer datasheet, page 2

  • impedance

    Impedance response

    Trace datasheet-response-trace-poc/v2
    240 plotted pointsSource file SHA-256 4ac24f3e21e1…Medium confidence628 selected pixels of 868
    Manufacturer datasheet, page 2

T/S Parameters

Valid
Canonical
Fs27Hz
Qts0.29
Qes0.29
Qms22.8
Vas332.0L
Re2.6Ω
Le1.65mH
BL24.9Tm
Sd1662cm²
Mms415g
Xmax14.6mm
SPL96dB
Power1600W
Power Nominal1600W
Impedance4Ω
F Low35Hz
F High1400Hz
What this validation status means

Pricing & availability

Price definitions

No 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.

Hornresp

.txt · Hornresp driver database

Driver file ready to place in Hornresp’s Drivers folder.

Download for Hornresp

WinISD

.wdr · WinISD driver editor

Native WinISD driver record with the required SI conversions.

Download for WinISD

BASTA!

.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 VituixCAD

00 Simulator

Direct import · Web app

Start a new enclosure simulation with this driver already loaded.

Open in 00 Simulator

Copy spec sheet

Plain text · Clipboard

Copy the available values as a clean label-and-value list.

Dimensions & Physical

Weight17.1kg
Diameter545.0mm
Overall Depth245.0mm
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.

Search Similar
Eighteen Sound 21LW2600 21 inch 4 ohm loudspeaker driver similar-driver reference
Reference
Eighteen Sound
21LW2600
21"
Compare on

Matches sit inside every range. Size stays fixed automatically.

Qts
Qes
Vas
L
Xmax
mm
BL
Tm

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.

Eighteen Sound 21NTLW5000 21 inch 4 ohm loudspeaker driver similar driver
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Similarity
Eighteen Sound
21NTLW5000
21"
Xmax17.5mm+20%
Qts0.32+10%
BL25Tm0%
Vas300L-10%
Qes0.33+14%
Eighteen Sound 21NLW5300 21 inch 8 ohm loudspeaker driver similar driver
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Similarity
Eighteen Sound
21NLW5300
21"
Xmax15.3mm+5%
Qts0.32+10%
BL31Tm+24%
Vas325L-2%
Qes0.34+17%
Eighteen Sound 21LW2600 21 inch 8 ohm loudspeaker driver similar driver
69%
Similarity
Eighteen Sound
21LW2600
21"
Xmax14.6mm0%
Qts0.33+14%
BL32.5Tm+31%
Vas333L0%
Qes0.34+17%
B&C 21SW152 21 inch 4 ohm loudspeaker driver similar driver
68%
Similarity
£585.00
B&C
21SW152
21"
Xmax15mm+3%
Qts0.3+3%
BL32.5Tm+31%
Vas200L-40%
Qes0.31+7%
Eighteen Sound 21NLW9001 21 inch 4 ohm loudspeaker driver similar driver
68%
Similarity
Eighteen Sound
21NLW9001
21"
Xmax14mm-4%
Qts0.34+17%
BL23.8Tm-4%
Vas272L-18%
Qes0.37+28%
B&C 21SW115 21 inch 4 ohm loudspeaker driver similar driver
65%
Similarity
£481.99
B&C
21SW115
21"
Xmax14mm-4%
Qts0.36+24%
BL24.8Tm0%
Vas278L-16%
Qes0.37+28%
Eighteen Sound 21NLW9601C 21 inch 4 ohm loudspeaker driver similar driver
63%
Similarity
£798.74
Eighteen Sound
21NLW9601C
21"
Xmax14mm-4%
Qts0.290%
BL33.2Tm+33%
Vas140L-58%
Qes0.31+7%
Eighteen Sound 21ID 21 inch 2 ohm loudspeaker driver similar driver
60%
Similarity
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21ID
21"
Xmax14mm-4%
Qts0.23-21%
BL25.2Tm+1%
Vas143L-57%
Qes0.24-17%
Fane COLOSSUS PRIME 21XS 21 inch 8 ohm loudspeaker driver similar driver
59%
Similarity
Fane
COLOSSUS PRIME 21XS
21"
Xmax14mm-4%
Qts0.34+17%
BL31.3Tm+26%
Vas266L-20%
Qes0.35+22%
Image unavailable
59%
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Precision Devices
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21"
Xmax14mm-4%
Qts0.34+17%
BL31.3Tm+26%
Vas266L-20%
Qes0.35+22%
SB Audience NERO-21SW1100D 21 inch 8 ohm loudspeaker driver similar driver
59%
Similarity
£343.60
SB Audience
NERO-21SW1100D
21"
Xmax12.2mm-16%
Qts0.34+17%
BL30Tm+20%
Vas312.6L-6%
Qes0.35+21%
Fane COLOSSUS PRIME 21NDXL 21 inch 8 ohm loudspeaker driver similar driver
52%
Similarity
Fane
COLOSSUS PRIME 21NDXL
21"
Xmax14mm-4%
Qts0.36+24%
BL30Tm+20%
Vas241L-27%
Qes0.37+29%