21vS

A Studio subwoofer.

The 21vS is a high power handling, high output, long travel 21 inch subwoofer driver featuring; high sensitivity, clean and well extended top end response, low/linear inductance, and low distortion. The goal behind this driver is to offer music and cinema lovers alike, a well rounded driver that delivers all aspects of bass in a high performance fashion. 

Studio drivers offer predictable output performance, there is no sudden changes or diminishing sound quality.

Designed and manufactured in Canada.
  • Overview
  • Specifications
  • TS Parameters
  • ​Installation
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Studio/Reference bass driver

Compact

High performance

Neodymium motor

Dual 2 ohm Voice Coil (D2)

​Dual 4 ohm Voice Coil (D4)

Physical Properties

​Basket Material
Cast Aluminum

Cone Material
Carbon

Surround
Half roll treated foam

Power handling
1500-3000

Spider
Single progressive 10" diameter

Magnet
Neodymium Ring

Coil
4.5" Diameter Aluminum

Former
Black anodized Aluminum

Dustcap
Black anodized Aluminum

Motor Topology
Overhung

Shorting Ring
Dual Aluminum

Performance & Application

​Frequency response
5-600 Hz

Power Handling
1500-3000 RMS

Enclosure types
Sealed/Ported/LLT

Enclosure Vol sealed
150L-infinite

Enclosure Vol ported
300L-800L

Port tuning range
10-25 Hz

Suitable Purpose
Home/Studio/Pro

D2

​​Fs
Re
Qms
Qes
Qts
Sd
Vas
Le 1khz
Mms
Bl
Xmax
Xmech
Cms
Rms
Sensitivity/W
Sensitivity @ 2.83V
24.6
4.1(2x2.05)
4.7
0.56
0.50
1550
325
1.7
460
23
25
38
0.095
14.44
91.4
94.3
Hz
Ohm



cm2
L
mH
g
N/A
mm
mm
mm/N
kg/s
dB
dB

D4

​​Fs
Re
Qms
Qes
Qts
Sd
Vas
Le 1khz
Mms
Bl
Xmax
Xmech
Cms
Rms
Sensitivity/W
Sensitivity @ 2.83V
24.2
6.8(2x3.4)
4.8
0.57
0.51
1550
325
3.0
470
29
26
38
0.095
14.44
91.0
91.7
Hz
Ohm



cm2
L
mH
g
N/A
mm
mm
mm/N
kg/s
dB
dB
Application
Studio/Home/Pro

Diameter


Cutout


Total Depth 


Mounting Depth


Enclosure Volume
See Specifications