Parallel Wiring of Dual Voice Coils (1 Woofer)
Parallel Wiring of Dual Voice Coils (2 Woofers)
Series Wiring of Dual Voice Coils (1 Woofer)
Series/Parallel Wiring of Dual Voice Coils (2 Woofers)
Owner's manual
REV 011106JMH
SOUNDSTREAM SPLX Woofer
Thiele / Small Parameters SPLX-122
Design Features
Cast Aluminum Basket
Kevlar/Paper Mix Cone
UV Coated Foam Surround
1-Piece Rubber Gasket
Gold Plated Push Terminals
Building the Enclosure
Recommended wiring
Optimum
Minimum
1 cubic foot
.75 cubic feet
Recommended box sizes
Sealed Enclosure Recommendations
Vented Enclosure Recommendations
SPLX 12
RMS Power (Watts)
VOICE COIL DIAMETER (INCHES)
VOICE COIL IMPEDANCE (INCHES)
WOOFER DISPLACEMENT (FT3)
MAGNET WEIGHT (oz)
FREQUENCY RESPONSE (Hz)
Fs (Hz)
Qes
Qms
Qts
Vas (Ft3)
Xmax (in.)
SPL (dB)
HOLE SIZE (INCHES)
WOOFER DEPTH (INCHES)
750
3
DUAL 2 Ohm
0.1
192
25-300
35
0.342
5.387
0.322
1.42
0.565
89
11.25
7.25
If you are an enthusiast that plays your system loud and hard, the SPLX
Woofers will take you to the next level. Capable of working in small
enclosures for audiophiles and large vented for SPLX Max “Bass Heads”,
this is woofer was a great a choice if you are serious about your sound.
We ask that you take a moment to read through the entire manual
before installing the woofer to familiarize your self with the connection
procedure as well as determining the best fit enclosure for you and your
vehicle’s application.
Congratulations and Thank You for you purchase of an SPLX Woofer. We
are confidant you will enjoy the performance of this woofer for many
years.
First determine the dimensions of your enclosure. Be certain the box
dimensions that you have designed will fit in the locations you have
chosen. Sometimes, making a cardboard box with the identical outer
dimensions is helpful to confirm it will fit properly. We recommend using
.75” thick MDF (Medium Density Fiberboard) to build your speaker box
with.
Use a “T-Square” to verify you have cut all your precise right angles
before you assemble the box completely. Use high quality wood glue
along with nails and screws for proper assembly.
Apply a sealant to all of the inside corners of the enclosure to assure
proper sealing of the box.
It is recommended to stuff a sealed enclosure with approximately 50%
fill (DACRON or Polyester Insulation) for damping purposes.
Strip off approximately .5”/13mm of wire insulation to assure the bare
wire lead penetrates all the way through the push terminal. Follow by
using additional sealant around the wire lead exiting the enclosure or
around the terminal cup if one is being used.
NOTE: A mathematical reference to determining impedance of multiple coils in one
circuit is to DIVIDE the Impedance of the coils by their quantity when connected in
Parallel or simply add the impedance in a concurrent matter if you series the coils in
a circuit.
The following page explains a few different methods for you to match
the impedance of the woofer(s) to the optimum or near best capabili-
ties of your amplifier. It is your responsibility to calculate the correct load
for your amp. Please take a moment to read through the diagrams to
insure maximum performance of your woofers and amplifier(s).
Optimum
Minimum
Port (dia x length)
Qty of Port(s)
Tune Freq.
F3
Required Airspace
2 cubic foot
1.5 cubic foot
36Hz
36Hz
33Hz
33Hz
1
3
4" x 12"
4" x 18"
2 ohm LOAD
Amplifier
4 ohm
Woofer
4 ohm
1 ohm LOAD
4 ohm
Woofer
4 ohm
4 ohm
Woofer
4 ohm
Amplifier
4 ohm
Woofer
4 ohm
Amplifier
8 ohm LOAD
4 ohm LOAD
4 ohm
Woofer
4 ohm
4 ohm
Woofer
4 ohm
Amplifier
