Dayton Audio Ultimax UM8-22
Subwoofer
8″ / 210 mm
Nominal diameter
34 Hz
Resonance
0.64
Q factor
81 dB
Sensitivity
± 16 mm
Linear excursion
600 W
Program Power
.jpg)
.jpg)
.jpg)
Available on (affiliate links)
Amazon.com
$$$
Parts Express
$$$
Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
80.8
dB
Frequency response
30 - 800
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
34.3
Hz
Mechanical quality factor
QMS
2.47
Electrical quality factor
QES
0.87
Total quality factor
QTS
0.64
Large signal parameters
Maximum linear excursion
xmax
16.0
mm
Air volume displaced at xmax
VD
338
cm³
Power handling
P
300
W
Program power
Pmax
600
W
Voice Coil
Nominal impedance
Z
2 x 2
Ω
DC resistance (in series)
RE
4.2
Ω
Inductance (1kHz, in series)
LE
0.73
mH
VC Diameter
51
mm
Winding material
Copper
Former material
Aluminum
Magnet
Force factor (in series)
Bl
9.2
N/A
Motor constant
Bl/√RE
4.49
N/√W
Material
Ferrite
Diaphragm
Effective diameter
164
mm
Effective area
SD
211
cm²
Moving mass
MMS
81.2
g
Moving mass (without air load)
MMD
78.9
g
Material
Nomex
Suspensions
Stiffness
KMS
3.7
N/mm
Compliance
CMS
270
µm/N
Equivalent volume to the compliance
VAS
16.6
L
Mechanical resistance
RMS
7.08
N·s/m
Surround material
Rubber
Dimensions
Nominal diameter
8
″
210
mm
Overall diameter
210
mm
Baffle cutout diameter
189
mm
Overall depth
120
mm
Volume occupied by the driver (estimated)
1.1
L
Frame material
Cast Aluminium
.png)
.png)
.png)
Export this driver to a simulation software:
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
SpeakerbenchSimilar subwoofers to Dayton Audio UM8-22
.jpg.webp)
.jpg.webp)
.jpg.webp)