Speaker User Manual
Congratulations and thank you for purchasing Soundstream products. We are confi-
dent you will enjoy your new subwoofer and appreciate the effort involved in bringing 
you  the  best  engineered  and  crafted  subwoofer  in  this  category.  Harmonic 
indulgence...Listen and feel. 
We advise you to keep this manual in a safe and dry place. Write down any important 
information to reference from in the future, such as you enclosure information and 
port dimensions. Draw a simple diagram or parameters of the enclosure incase you 
ever need to reference from it in the future. 
Due to the nature of this speaker, it works best when installed in smaller sealed enclo-
sures. The use of a ported enclosure will resulting in unsatisfactory performance and 
low speaker life. This speaker is intended to form a multi-way system utilizing custom 
built passive crossover networks tuned between 60 - 1250Hz at  an  18dB or greater 
slope. Please  consult the assistance  of a  qualified technician for  more information 
before proceeding with your installation. The use of an active (electronic) crossover is 
also a good idea, but both should be considered to provide the best performance 
and frequency response. 
Specifications 
NOTICE 
Model 
Mounting Depth 
Outer Diameter 
Cutout Diameter 
Driver Displacement 
Impedance 
RMS Power 
MAX Power 
PEAK Power 
Voice Coil 
Magnet Weight 
Frequency Response 
Resonant Frequency 
Qts 
Qms 
Qes 
Vas 
XMAX 
SPL 
SM16-90
3.125”
6.875”
5.875”
.03 cu. ft.
8 ohm
100 watts
200 watts
300 watts
1.5”
35 oz.
130 - 15KHz
128Hz
.384
1.786
.489
4.978 ltr
2 mm
97dB
SM8-100
3.625”
8.25”
7.25”
.04 cu.ft.
8 ohm
100 watts
200 watts
300 watts
1.5”
45 oz.
90 - 10KHz
94.4Hz
.406
1.493
.558
15.513
1 mm
97dB
Enclosure Recommendations for SM16-90
Optimum Enclosure Other Enclosures
MAX Power
Volume
NET Volume .4 cuft / 11.3 ltrs
Enclosure Q .71
Max Power 125 watts
SPL   92dB
Fill   60% Semi Tight
Smallest   .2 cuft / 5.66 ltrs  125 watts
Largest   .8 cuft / 22.65 ltrs  100 watts
Wiring Configurations
Other Enclosures
MAX Power
Volume
Smallest   .25 cuft / 7.08 ltrs  130 watts
Largest   1 cuft / 28.317 ltrs  125 watts
NET Volume .5 cuft / 14.16 ltrs
Enclosure Q .8
Max Power 130 watts
SPL   94dB
Fill   60% Semi Tight
Enclosure Recommendations for SM8-100
Optimum Enclosure
Other Enclosures
MAX Power
Volume
Smallest   .2 cuft / 5.66 ltrs  125 watts
Largest   .8 cuft / 22.65 ltrs  100 watts
NET Volume .4 cuft / 11.3 ltrs
Enclosure Q .71
Max Power 125 watts
SPL   92dB
Fill   60% Semi Tight
Enclosure Recommendations for SM16-94
Optimum Enclosure
Because both of SM8-100 and SM16-90 are only available in a single 8 ohm voice 
coil  configuration,  and  SM16-94  is  only  available  in  a  single  4  ohm  voice  coil 
configuration,  there  are  no  wiring  diagrams  to  explain  for  other  possible 
impedance  levels.  However,  you  can  obtain  different  impedance  levels  with 
multiple  speakers  connected  to  one  circuit,  but  because  of  the  intended 
application of the speaker the information is not disclosed. If you will be designing a 
system which requires more than one driver in one a circuit and need assistance 
calculating the  impedance,  please E-mail  tech-support@soundstream.com for 
more information or call our offices at 323.724.4600.
SM16-94
3.125”
6.875”
5.875”
.03 cu. ft.
4 ohm
100 watts
200 watts
300 watts
1.5”
35 oz.
130 - 15KHz
133Hz
.540
2.490
.689
3.482 ltr
2 mm
97dB


