MODEL SOUNDS ShockWave 2 Quick user guide

ShockWave 2 Sound Module
Version 4.1.3 Hardware Reference Manual
Date: November, 2018
© Model SoundsTM Inc.

ShockWave2-4.1.3 Hardware Manual Page i of 40 Published: November, 2018
© Model SoundsTM Inc.
TABLE OF CONTENTS
Table of Figures....................................................................................................................................... 3
CHAPTER 1 –THE BASICS –GETTING STARTED...................................................................................4
ShockWave 2 Sound Module Layout ...................................................................................................... 4
Terminal Block and Connector H1/H2 Detail.......................................................................................... 4
Mounting the Module............................................................................................................................. 6
Correct Switch-On sequence for Transmitter/Receiver/Sound Module................................................ 7
Applying Power to the ShockWave 2 Sound Module............................................................................. 7
Supply Voltage Considerations ............................................................................................................... 7
Why Do I Have to Wait So Long For The LEDS to Stop Flashing? ........................................................... 8
CHAPTER 2 –THE MICROSD CARD AND .SFX7 FILES ...........................................................................9
The ShockWave 2 Sound Module And Its microSD Card........................................................................ 9
What is a .sfx7 file?................................................................................................................................. 9
File Structure On The ShockWave 2 microSD Card .............................................................................. 10
CHAPTER 3 –CONNECTING THE SHOCKWAVE 2 MODULE TO YOUR PC ............................................ 11
Transferring files Between the PC and the ShockWave 2 Sound Module............................................ 12
CHAPTER 4 –HOW TO WIRE THE SHOCKWAVE 2 MODULE .............................................................. 13
Wiring for One Throttle With Receiver Battery.................................................................................... 13
Wiring for One Throttle –Without Receiver Battery ........................................................................... 14
Wiring for One Throttle –with Auxiliary Battery for Sound Module ................................................... 14
Wiring for Two Throttles and Two Engine Sounds ............................................................................... 16
CHAPTER 5 –VOLUME/BALANCE CONTROLS AND EXTERNAL AMPLIFIERS ....................................... 17
Volume Control..................................................................................................................................... 17
Balance Control..................................................................................................................................... 17
Remote Volume Control –R/C or Wired .............................................................................................. 17
Connecting to An External Amplifier .................................................................................................... 18
CHAPTER 6 –CALIBRATING THE SHOCKWAVE 3 THROTTLE INPUTS.................................................. 19
Automatic Throttle Setup ..................................................................................................................... 19
Precision Manual Button Throttle Setup.............................................................................................. 19

ShockWave2-4.1.3 Hardware Manual Page ii of 40 Published: November, 2018
© Model SoundsTM Inc.
CHAPTER 7 –HOW TO CONTROL THE SOUNDS ................................................................................ 21
Controlling “Regular” (Non-Engine) Sounds......................................................................................... 21
Using Mechanical Switches or Logic Level Voltage Inputs ................................................................... 23
Throttle Controls................................................................................................................................... 23
Throttle1 and Throttle2 Setup.............................................................................................................. 24
What Are The Two Buttons Used For? ................................................................................................. 25
Using an Analog Input to control the Engine Sounds........................................................................... 25
Controlling the Engine Sounds.............................................................................................................. 26
Starting Up Jet/Turbofan/Turboprop/Helicopter Sounds .................................................................... 27
CHAPTER 8 –SPECIAL PROVISONS FOR MODEL TANKS AND HELICOPTERS....................................... 28
Special Provisions For Model Tanks...................................................................................................... 28
Special Provisions For Model Helicopters............................................................................................. 28
CHAPTER 9 –WHICH LOUDSPEAKERS TO USE .................................................................................. 30
CHAPTER 10 –HOW TO USE THE LED SWITCHED OUTPUTS.............................................................. 31
Switched Outputs for LED Flashing/Lights or Smoker Fan Control ...................................................... 31
Using Receiver Battery to Power LEDs ................................................................................................. 31
Using Optional Separate Battery To Power LEDs ................................................................................. 32
Switching Inductive Loads and Snubbers ............................................................................................. 32
CAUTION –Do Not Use These Outputs to Drive a Motor Directly!...................................................... 33
Switched Outputs for Smoker fan Control ........................................................................................... 33
CHAPTER 11 - MISCELLANEOUS....................................................................................................... 35
Updating the Firmware in the ShockWave 2 Module .......................................................................... 35
Setting Low Battery Voltage Alarm Sounds.......................................................................................... 35
What Do The Red/Green LEDs Mean?.................................................................................................. 36
Where Are Hardware Settings Stored? ................................................................................................ 37
CHAPTER 12 –TECHNICAL SPECIFICATIONS ..................................................................................... 38
Technical Specifications (continued) .................................................................................................... 39

ShockWave2-4.1.3 Hardware Manual Page 3 of 40 Published: November, 2018
© Model SoundsTM Inc.
TABLE OF FIGURES
Figure 1: ShockWave 2 Sound Module Layout ........................................................................................... 4
Figure 2: Wiring for Single Throttle with Separate Receiver Battery ....................................................... 13
Figure 3: Wiring for Single Throttle Using ESC BEC................................................................................... 14
Figure 4: Wiring for Separate Receiver Battery and Separate Sound Module Battery............................ 15
Figure 5: Wiring for Dual Motors/ESCs/Throttles with Separate Receiver Battery ................................. 16
Figure 6: Wiring for LED Switched Outputs Using Receiver Battery to Power LEDs ................................ 31
Figure 7: Wiring for LED Switched Outputs Using Separate Battery to Power LEDs................................ 32
Figure 8: External P-Channel MOSFET transistor for heavy currents....................................................... 34
MAKE A BACKUP OF THE ENTIRE CONTENTS OF THE MICROSD CARD USING THE INCLUDED
MICROSD TO STANDARD SD ADAPTOR IN A SD CARD SLOT ON YOUR COMPUTER,
OR A USB MICROSD CARD READER ON YOUR COMPUTER BEFORE YOU DO ANYTHING!!!

ShockWave2-4.1.3 Hardware Manual Page 4 of 40 Published: November, 2018
© Model SoundsTM Inc.
CHAPTER 1 –THE BASICS –GETTING STARTED
SHOCKWAVE 2 SOUND MODULE LAYOUT
Figure 1: ShockWave 2 Sound Module Layout
Power supply input and loudspeaker connections are made through the centre terminal block.
All R/C receiver inputs for throttles and sound select are at Header 1. Additional throttle connections,
optional switched outputs and audio line outputs are at Header 2. In order to hear sound from the
speaker, power (10 –26Volts) must be on the main terminal block terminals 2 and 3.
Recommended gauge for loudspeaker and battery wire is 22AWG solid core.
TERMINAL BLOCK AND CONNECTOR H1/H2 DETAIL
Header 1
Header 2
LEDS
Terminal Block
Volume Control
MicroSD Card Slot
Mini-USB Port
Balance Control
Button 1
(Used for Optional
Button Throttle1 Setup)
Button 2
(Used for Optional
Button Throttle2 Setup
and for firmware
re-programming)

ShockWave2-4.1.3 Hardware Manual Page 5 of 40 Published: November, 2018
© Model SoundsTM Inc.
HEADER 1 Detail –Use Male-Male Servo Leads
Pin
Numbers
Board
Legend
Function
Notes
1, 2, 3
GPSIN
Input from external DopplerFX GPS Module.
+3.3V power is on pin 2. DO
NOT connect to anywhere else.
4, 5, 6
SOUND2
Sound Select2 signal in from receiver. Pin 4 is GND,
5 is receiver power, 6 is Sound Select2 signal.
Receiver power is on pin 5
7, 8, 9
SOUND1
Sound Select1 signal in from receiver. Pin 7 is GND,
8 is receiver power, 9 is Sound Select1 signal.
Receiver power is on pin 8
10, 11, 12
THTTL2
Throttle2 signal in from receiver. Pin 10 is GND,
11 is receiver power, 12 is Throttle2 signal.
Receiver power is on pin 11
13, 14, 15
THTTL1
Throttle1 signal in from receiver. Pin 13 is GND,
14 is receiver power, 15 is Throttle1 signal.
Receiver power is on pin 14
Terminal Block Detail –Use 22AWG solid core wire
CAUTION WHEN WIRING : The power and speaker connections on the ShockWave 2 are interchanged
from the original ShockWave module. Take care when connecting the battery and speakers!
HEADER 2 Detail
Pin
Numbers
Board
Legend
Function
Notes
1
++VE
Main Battery positive 4.5Volts –26 volts
Do NOT reverse Battery
leads!!
2,3
SPKR
Loudspeaker - Do NOT use less than 8 Ohms
on voltages above 17Volts. 4 Ohms is OK on
4.5-17Volts.
4
--VE
Main Battery negative 4.5Volts –26 volts
Do NOT reverse Battery
leads!!
Pin
Numbers
Board
Legend
Function
Notes
1, 2, 3
SW 3/4
Switched Outputs 3/4. Pin 1 is SWITCH4,
2 is RECEIVER POWER, 3 is SWITCH3.
Receiver power is on pin2.
4, 5, 6
SW 1/2
Switched Outputs 1/2. Pin 4 is SWITCH2,
5 is RECEIVER POWER, 6 is SWITCH1.
Receiver power is on pin 5.
7, 8, 9
THTTL2
Throttle2 signal out to ESC2. Pin 7 is GND,
8 is receiver power, 9 is THTTL2 signal.
Receiver power is on pin 8.
Can be used to feed ESC2
10, 11, 12
THTTL1
Throttle1 signal out to ESC1. Pin 10 is GND,
11 is receiver power, 12 is THTTL1 signal.
Receiver power is on pin 11.
Can be used to feed ESC1
13, 14, 15
AUDIO
Line level Audio Out signals –1.0V RMS.
13 is GND, 14, is Left Signal, 15 is Right Signal.
Used to feed external
amplifier(s).

ShockWave2-4.1.3 Hardware Manual Page 6 of 40 Published: November, 2018
© Model SoundsTM Inc.
NOTES :
1. LEDs for guns or other switched loads connect between their Switch 1/2 terminals 4, 6 or
Switch 3/4 terminals 1, 3 and a positive supply voltage which can be the same supply as the
receiver supply on pins 2/5 or you can use any secondary positive power supply up to a
maximum of 30Volts. DO NOT connect its +VE supply to any pin on the sound module. DO
NOT exceed 1 Amp. on each output or 4 Amps total for all switched outputs.
2. The servo leads for Throttle and Sound Select inputs are Futaba style (black, red, white).
The black wire is always the GND, 0V or –VE connection and should always be inserted
towards the outside of the receiver case and towards the board of the sound module.
3. The SPKR terminals MUST NOT be connected to anything other than the appropriate
loudspeaker for the supply voltage used.
4. The ShockWave 2 sound module receives its power from the receiver battery through the
throttle cable. The ESC (without a BEC) can be connected to the right-hand set of THTTL1 pins
to receive its signal from the receiver, thus avoiding the necessity of a Y servo lead to connect
both the ESC and the sound module to the receiver throttle output. The left and right-hand
THTTL1 pins are connected internally, thus are essentially a feed through.
If, on the other hand, you want to power your entire system from the ESC BEC, then you should
use a Y servo lead rather than connect the ESC to the right hand THTTL1 pins. This is because
the internal THTTL1 connections use a very narrow copper track internal to the board that is
not designed to take high currents such as may be drawn by the servos when in operation.
MOUNTING THE MODULE
Mount the module using screws WITH THE PROVIDED NYLON WASHERS UNDER THEIR HEADS.
Failure to use the included insulating washers under the screw heads voids the warranty.
Mount the module where good air circulation can take place, especially when operating it above
18 Volts. The module will get warm on 12 Volts and quite hot on 24Volts if operated continuously
when playing sounds. Do not be overly concerned. The output amplifier is thermally protected and will
shut down if it gets too hot.

ShockWave2-4.1.3 Hardware Manual Page 7 of 40 Published: November, 2018
© Model SoundsTM Inc.
CORRECT SWITCH-ON SEQUENCE FOR TRANSMITTER/RECEIVER/SOUND MODULE
The radio transmitter should ALWAYS be switched on before the receiver. Some receivers give out
invalid signals when the transmitter is not switched on. If the sound module is connected to the
receiver and is switched on before the transmitter, some sounds may start playing.
In this case, switch off the receiver and sound module, switch on the transmitter FIRST and THEN
power up the receiver and sound module.
APPLYING POWER TO THE SHOCKWAVE 2 SOUND MODULE
The ShockWave 2 module’s low-level circuitry can be powered using two methods.
1. From the R/C receiver through the THTTL1/2 or SOUND1/2 cables.
2. From the USB port when connected to a PC.
In addition, the audio power amplifier is powered from the Blue terminal block on the module.
Either of the first two methods will power the low level circuitry and make the sound module
functional. Audio line signals are available through the line output pins on Header 2. However, if you
want to hear sound from the sound module’s internal power amplifier you must have power applied to
the Blue terminal block as well as low level power from methods 1 or 2.
If USB power is not connected, you must have receiver power applied through the THTTL1/2 or
SOUND1/2 cables, in addition to power supplied to the Blue terminal block.
SUPPLY VOLTAGE CONSIDERATIONS
The minimum supply voltage for the power amplifier is 4.5V. The 26Volts maximum must not be
exceeded. A 6 cell LiPo flight pack will give out a nominal voltage of 6 x 3.7V = 22.2V, but close to 26V
when fully charged. Be aware that output power changes with the square of the supply voltage, so 1/2
the supply voltage results in 1/4 the output power for any given loudspeaker impedance. On lower
supply voltages the volume control should be turned down if distortion occurs in the audio amplifier.
The single channel audio amplifier to drive the loudspeaker is powered from the main terminal block
terminals 2 and 3 (see later). It will play a mix of the left and right audio channels.
There are two sets of pins for THTTL1 and THTTL2 on each side of the sound module. They are
internally connected to each other. One set can be used to connect to the receiver throttle output and
the other set can be used to feed the ESC for its respective throttle channel. They are straight through
connections with no signal processing, therefore there is no need for a Y servo lead to be used.

ShockWave2-4.1.3 Hardware Manual Page 8 of 40 Published: November, 2018
© Model SoundsTM Inc.
WHY DO I HAVE TO WAIT SO LONG FOR THE LEDS TO STOP FLASHING?
During the initialization period when the red/green LEDS are flashing rapidly alternately, the sound
module is waiting for the receiver to stabilize and produce valid outputs signals. The default wait
period is 6 seconds. This is because some receivers can take a long time to stabilize, especially some
2.4GHz receivers. If your receiver stabilizes much faster, you can reduce this wait time down to as short
as one second using the SFXPC4.1.3 Software in its Control Panel->Hardware Tab.

ShockWave2-4.1.3 Hardware Manual Page 9 of 40 Published: November, 2018
© Model SoundsTM Inc.
CHAPTER 2 –THE MICROSD CARD AND .SFX7 FILES
THE SHOCKWAVE 2 SOUND MODULE AND ITS MICROSD CARD
The ShockWave 2 microSD Card connector is a push-push type, i.e. you push the card in to insert and
lock it and push it again to release the card for removal. When inserting the microSD Card, make sure it
is pushed fully home so that the latching mechanism prevents it from accidentally being removed.
To remove the card, push it again and it will spring out so that it can be removed fully.
During installation in your model or other testing it is possible to accidentally push the card in without
noticing and it may then fall out and get lost. It is therefore advisable to put a piece of adhesive tape
over the card and its connector to make sure this does not happen.
The ShockWave 2 sound module uses the microSD Card to store its digitized sounds, as well as various
configuration and hardware settings. Thus it is very easy to add or change the sounds on a ShockWave
2 sound module by simply plugging in a different microSD Card with new files.
When the ShockWave 2 sound module has its microSD Card inserted and it is connected to a Windows
PC through its USB port, it will appear as a “USB Mass Storage Device”, i.e. a removable “hard drive”
will appear in Windows Explorer. The name of this drive, or its disk label, is ALWAYS “SHOCKWAVESD”.
DO NOT re-label the ShockWave 2 microSD Card as any other name. This specific disk label is searched
for by the SFXPC4 Software to detect the necessary files on the module.
However, the ShockWave 2 sound module can be connected to the PC either with, or without, it’s
microSD Card. If the microSD Card is missing, you will get a warning dialogue box, but this is for
information only. The dialogue box can be closed and the ShockWave 2 sound module will still be
detected. However, the Red and Green LEDS will flash alternately to indicate that it is in USB MODE,
but with the microSD Card missing.
For those that are technically minded with computers, see Appendix A for further details of the USB
Classes used by the ShockWave 2 sound module.
WHAT IS A .SFX7 FILE?
The ShockWave 2 sound module uses files on its microSD card with a .sfx7 file extension. Some users
may not see any file extension as Microsoft, in their infinite wisdom, have deemed that ordinary users
do not need to see file extensions as a default setting in Windows Explorer. You can see file extensions
by changing the Folder View settings in Windows Explorer.

ShockWave2-4.1.3 Hardware Manual Page 10 of 40 Published: November, 2018
© Model SoundsTM Inc.
FILE STRUCTURE ON THE SHOCKWAVE 2 MICROSD CARD
The files on the ShockWave 2 microSD Card must be in a certain format and structure. In the microSD
Card Root Folder there is the following file :
SELECT_YOUR_SOUNDSET_HERE.txt. This file should contain two lines as follows:
One line naming the folder containing the .sfx7 file you wish to use.
One line naming the .sxf7 file in that folder that you want the ShockWave 2 sound module to use.
Example:
ShockWave 2SoundSets\Aircraft
SpitfireMerlinSoundSet.sfx7
In this example, when powered up, the ShockWave 2 module will expect there to be a .sfx7 file named
“SpitfireMerlinSoundSet.sfx7” in the ShockWave 2SoundSets\Aircraft folder on the card.
Alternatively, you can place the .sfx7 sound file in the root folder of the microSD Card and then the
SELECT_YOUR_SOUNDSET_HERE.txt file should contain only one line of text containing the name (with
file extension) of the .sfx7 file you want to use. E.G. SpitfireMerlinSoundSet.sfx7
In this way you can have many .sxf7 sound sets on the microSD Card and they can be changed at will by
simply editing the SELECT_YOUR_SOUNDSET_HERE.txt. Each time this information is changed the
module should be powered down and then powered up again.

ShockWave2-4.1.3 Hardware Manual Page 11 of 40 Published: November, 2018
© Model SoundsTM Inc.
CHAPTER 3 –CONNECTING THE SHOCKWAVE 2 MODULE TO YOUR PC
You DO NOT need to connect the ShockWave 2 sound module to a PC in order to use it or set it up –
it is fully configured and ready to use when you receive it. If you want to change any of its many
configurable settings or change the sounds then you will need to connect it to a PC and install the
optional SFXPC4.1.3 Windows only software application. Alternately you can simply plug in another
microSD Card that you purchase from us with the new sounds and configuration settings already
installed.
The ShockWave 2 sound module waits for the initialization period when in both playback and USB
modes. This is to make sure the sound module has set the correct values for the various R/C pulse
widths whichever mode it is in. Therefore please make sure your transmitter is switched on before the
receiver is powered up when it is connected to the sound module and then connect the USB cable
after the red/green LEDs have finished flashing alternately. Also if you use a throttle cut-off switch that
changes the throttle pulse width once it is armed, then that switch must be armed BEFORE the
initialization period is complete. Otherwise, if it is armed afterwards, the sound module will think there
is a step change in the throttle pulse width and will likely immediately play the engine sound at full
speed as a result.
Power up the Transmitter and Receiver First Before you Connect the USB Cable
Whilst the module will connect to the PC and be powered by the USB connection without the
transmitter and receiver being connected and powered on, you will not be able to perform any R/C
related activity in the SFXPC4.1.3 Software application. If you then connect the receiver to the module
with the transmitter switched on, and the USB cable is still connected, the module firmware will stop
and the red and green LEDs will come on. This indicates a temporary firmware failure since the R/C
code was not properly initialized before the USB connection was made.
The ShockWave 2 USB interface requires no special USB drivers –the USB drivers it requires are
already part of any Windows 7, Vista or Windows XP Operating System. When you connect the
ShockWave 2 sound module to the PC for the first time, you will see a message indicating that the
required USB drivers are being installed. Shortly afterwards it will say “Your New Hardware is ready to
use”.
The SFXPC4.1.3 Windows software application is available as a separate purchase for download only.
This software is not required by everyone so by not including it with the sound module we are able to
lower the price of the sound module for everyone. The manual for the Software Application is in the
Manuals folder in the ZIP file that is downloaded. The software can be ordered on-line from our web
site.

ShockWave2-4.1.3 Hardware Manual Page 12 of 40 Published: November, 2018
© Model SoundsTM Inc.
TRANSFERRING FILES BETWEEN THE PC AND THE SHOCKWAVE 2 SOUND MODULE
If you want to transfer files and configuration data between the PC and the ShockWave 2 module, it is
highly recommended to remove the microSD Card from the ShockWave 2 module and insert it into an
available microSD card reader slot on your computer. If your PC does not have a microSD card reader,
and you do not have a USB microSD card reader, we can supply a USB microSD Card reader as an
optional extra. Insert the microSD Card into the USB reader and plug the reader into any spare USB
port. Be careful not to lose the microSD Card!!
The ShockWave 2 module conforms to the USB2.0 Full Speed (12MBits/sec) specification. If you save
files to the microSD Card whilst it is in the ShockWave 2module, it will be much slower than when the
microSD Card is in the USB card reader which conforms to USB 2.0 High Speed (480MBits/sec)
specification.
Launch the SFXPC4 application AFTER the microSD Card reader has been plugged in. The SFXPC4
application will search all hard drives for one that has the disk label “SHOCKWAVESD”. Be patient –it
may take 10 seconds or so for the ShockWave 2 sound module to be full recognized by the operating
system and the SFXPC4.1.3 software.

ShockWave2-4.1.3 Hardware Manual Page 13 of 40 Published: November, 2018
© Model SoundsTM Inc.
CHAPTER 4 –HOW TO WIRE THE SHOCKWAVE 2 MODULE
WIRING FOR ONE THROTTLE WITH RECEIVER BATTERY
Although some modellers favour using their ESC BEC (Battery Eliminator Circuit) to power their
receiver, we do not recommend that set-up for high power systems. Depending upon the wiring,
currents involved, and the quality of the ESC BEC, it can introduce radio interference on the receiver
power leads. For this reason we recommend using a separate battery to power the receiver, as shown
in the next diagram.
When installing, be sure to run separate power lines to the battery just for your module. If the power
lines are shared with motor or ESC lines, the electrical noise generated by them will almost certainly
interfere with the sound module.
Figure 2: Wiring for Single Throttle with Separate Receiver Battery
Loudspeaker wires should be
tightly twisted together
8 Ohm
RX
Battery
4.8-6 Volts
+_
MOTORESC
Note : Centre wire IS NOT connected
if ESC has a BEC
Signal wire colour may be
orange or white
Battery wires should be
tightly twisted together
Any spare radio
channel can be used
ShockWave2
MODULE
GPSIN
SOUND2
SOUND1
THTTL2
THTTL1
BATT -VE
SPKR
SPKR
BATT +VE
SW 3/4
SW 1/2
THTTL2
THTTL1
AUDIO OUT
Receiver
THROTTLE
ANY AUX. CHNL
MAIN BATTERY
4.5 VOLTS MIN.
26 VOLTS MAX.
when fully charged
+
_
Optional User Supplied
Power switch
Note : When using a separate battery for the receiver, if the ESC has an active BEC
(Battery Eliminator Circuit), the centre wire of the servo lead MUST BE CUT. This avoids the Rx.
Battery and the ESC BEC “fighting each other”, which will likely damage the ESC.

ShockWave2-4.1.3 Hardware Manual Page 14 of 40 Published: November, 2018
© Model SoundsTM Inc.
See wiring diagram on next page for alternate loudspeaker wiring using two loudspeakers in series.
WIRING FOR ONE THROTTLE –WITHOUT RECEIVER BATTERY
If you must use the ESC BEC to power the receiver, then the wiring is as follows:
Figure 3: Wiring for Single Throttle Using ESC BEC
Loudspeaker wires should be
tightly twisted together
8 Ohm
Receiver
THROTTLE
ANY AUX. CHNL
MOTORESC
Signal wire colour may be
orange or white
Battery wires should be
tightly twisted together ShockWave2
MODULE
GPSIN
SOUND2
SOUND1
THTTL2
THTTL1
BATT -VE
SPKR
SPKR
BATT +VE
SW 3/4
SW 1/2
THTTL2
THTTL1
AUDIO OUT
Any spare radio
channel can be used
MAIN BATTERY
4.5 VOLTS MIN.
26 VOLTS MAX.
when fully charged
+
_
Single Loudspeaker
Connections
Solder Joint
Covered with
Shrink Wrap
Alternate Connections for
Two Loudspeakers
4 Ohm
Optional User Supplied
Power switch
WIRING FOR ONE THROTTLE –WITH AUXILIARY BATTERY FOR SOUND MODULE
If your main battery, e.g. your flight pack, exceeds 26Volts then you are recommended to use a
separate battery for the sound module. A small 6S LiPo 1000mAH pack would serve well. You could use
a voltage regulator to drop the flight pack voltage down to 26Volts, but these are generally inefficient
and may require heatsinking. The wiring for a separate auxiliary battery is shown here. Usually high
voltage, high current ESCs don’t have BECs, but if it does, cut the servo lead centre wire, as before.
In all cases, please heed the notes (4) on page 5 regarding using the right hand THTTL pins to feed the
ESCs only, not the other way round.
Wiring diagram on next page …

ShockWave2-4.1.3 Hardware Manual Page 15 of 40 Published: November, 2018
© Model SoundsTM Inc.
Figure 4: Wiring for Separate Receiver Battery and Separate Sound Module Battery
8 Ohm
Receiver
THROTTLE
ANY AUX. CHNL
RX
Battery
4.8-6 Volts
+_
_
MAIN BATTERY FOR
MOTOR
E.G. 10S LiPo
37 VOLTS
+
MOTORESC
Note : Centre wire IS NOT connected
if ESC has a BEC
Signal wire colour may be
orange or white
Loudspeaker wires should be
tightly twisted together
Battery wires should be
tightly twisted together ShockWave2
MODULE
GPSIN
SOUND2
SOUND1
THTTL2
THTTL1
BATT -VE
SPKR
SPKR
BATT +VE
SW 3/4
SW 1/2
THTTL2
THTTL1
AUDIO OUT
AUX. BATTERY
FOR SOUND MODULE
4.5 VOLTS MIN.
26 VOLTS MAX
when fully charged
+
_
Optional User Supplied
Power switch
In this diagram you have the main motor battery feeding the ESC ONLY and the separate sound
module battery feeding the SOUND MODULE ONLY, through a switch.
This arrangement is also recommended whenever the motor has a very high current draw so as to
isolate the sound system from the spiky, interference prone motor wiring.

ShockWave2-4.1.3 Hardware Manual Page 16 of 40 Published: November, 2018
© Model SoundsTM Inc.
WIRING FOR TWO THROTTLES AND TWO ENGINE SOUNDS
Figure 5: Wiring for Dual Motors/ESCs/Throttles with Separate Receiver Battery
8 Ohm
RX
Battery
4.8-6 Volts
+_
MOTOR1ESC1
MOTOR2ESC2
Note : Both centre wires
ARE NOT connected
if ESCs have BECs
Loudspeaker wires should be
tightly twisted together
Battery wires should be
tightly twisted together
Signal wire colour may be
orange or white
MAIN BATTERY
4.5 VOLTS MIN.
26 VOLTS MAX.
when fully charged
+
_
ShockWave2
MODULE
GPSIN
SOUND2
SOUND1
THTTL2
THTTL1
BATT -VE
SPKR
SPKR
BATT +VE
SW 3/4
SW 1/2
THTTL2
THTTL1
AUDIO OUT
THROTTLE1
ANY AUX. CHNL
THROTTLE2
RECEIVER
Optional User Supplied
Power switch
Wiring for dual throttles as above is self-explanatory.
If either of the ESCs above have an active BEC (Battery Eliminator Circuit), then BOTH of their receiver
power leads (the red, or centre, lead) MUST BE DISCONNECTED. Failure to do so could severely
damage the ESCs!!
If you don’t want to use a separate receiver battery (we recommend that a separate receiver battery is
always used), then ONE AND ONLY ONE of the ESC receiver power leads may be connected to power
the receiver. Never connect two ESCs with active BECs to the same receiver.
In all cases, please heed the notes (4) on page 5 regarding using the right hand THTTL pins to feed the
ESCs only, not the other way round.

ShockWave2-4.1.3 Hardware Manual Page 17 of 40 Published: November, 2018
© Model SoundsTM Inc.
CHAPTER 5 –VOLUME/BALANCE CONTROLS AND EXTERNAL AMPLIFIERS
VOLUME CONTROL
The audio volume can be set using the on-board rotary volume control, turning it using a small
flat-bladed screwdriver. When playing two or more sounds simultaneously you may have to reduce the
volume control to avoid overload and/or distortion if both signals peak at the same time. The signal
levels are such that, at full volume setting, full power output can be obtained when powered at 26
Volts. The actual volume and balance settings can be seen in the SFXPC4 Main Window. The volume
and balance controls also change the signal levels at the Audio Line Outputs.
When powered at lower voltages, e.g. 5-12V, you should reduce the volume control to avoid
overdriving the amplifier and causing distortion. When powered at the highest voltage (26 Volts) you
can increase the volume control to its maximum setting, but the speaker must then be able to handle
40 Watts. If your speaker can handle only 20 Watts proceed as follows.
1. Reduce the volume to a very low-level.
2. Gradually increase the volume to the point at which the speaker starts to sound distorted.
3. Back off the volume until the distortion stops.
BALANCE CONTROL
The balance control adjusts the ratio of left/right audio signals. At the centre position, both channels
are delivering their maximum signal levels. If the balance control is turned towards the left, it cannot
increase the left signal any further, so it reduces the right signal. Conversely, turning the control to the
right will reduce the left signal.
REMOTE VOLUME CONTROL –R/C OR WIRED
Using the SFXPC4 Control Panel->Hardware Tab, it is possible to configure the SOUND1 input as an
R/C remote volume control or the SOUND2 input as a wired remote volume control.
The RC Remote Volume mode will make the volume minimum with a 1ms pulse input and maximum
with a 2ms pulse input on the SOUND1 Input pins. If you want to use an external volume control on
the model itself, it should be configured for Wired Remote Volume. This mode requires a variable input
voltage on the SOUND2 signal pins from 0 –+2.5 Volts. You can connect an external potentiometer to
the SOUND2 signal pins to supply a variable 0 –+2.5 Volts with respect to GND or the –VE battery
connection.

ShockWave2-4.1.3 Hardware Manual Page 18 of 40 Published: November, 2018
© Model SoundsTM Inc.
CONNECTING TO AN EXTERNAL AMPLIFIER
The ShockWave 2 module has “Line-Out” Audio outputs that permit one or two external single channel
or one two channel audio power amplifiers to be connected. This would allow a high voltage, high
power amplifier to be used.
The left/right line audio output signals on Header 2 pins 14/15 are 1.0 Volts RMS at maximum volume
setting for sounds which are stored at their maximum amplitude. These audio outputs should not be
loaded with less than 10KOhms in order to preserve good low frequency response.
The setup and assignment of sounds to the left and right channels is done using the SFXPC4 software
application.
Something you have to watch for, and take care of, when using an external amplifier is the overall
phasing of the external amplifier's stereo channels, and its loudspeakers, compared to that of the
ShockWave 2 module and its loudspeakers. This means that you need all four loudspeakers to be
pushing or pulling air at the same time. It would not help if the ShockWave 2 speakers (or exciters)
were pushing air while the external amplifier speakers were pulling air, as they would be fighting
against each other to produce the sound.
The easiest way to test this is to experiment with reversing the polarity of the loudspeaker connections
on the ShockWave 2 blue terminal block and see if it makes any difference to the overall sound output
when you are using an external amplifier.

ShockWave2-4.1.3 Hardware Manual Page 19 of 40 Published: November, 2018
© Model SoundsTM Inc.
CHAPTER 6 –CALIBRATING THE SHOCKWAVE 3 THROTTLE INPUTS
AUTOMATIC THROTTLE SETUP
In order to startup, shutdown and increase and decrease the engine sound speed, the ShockWave 2
module must know what the corresponding throttle channel pulse widths are at its OFF, maximum
forwards and maximum reverse throttle stick positions.
The ShockWave 2module makes this job easy for the average user by measuring the incoming throttle
pulse width at the time the red/green LEDS stop flashing and using that as the neutral or OFF throttle
pulse. It then assumes the maximum forward and reverse values are 1000us for a forwards only
control or +/-500us for forwards and reverse throttle controls.
For most users these assumptions are adequate. However, if you want precision control over the full
range of sounds and the full throttle stick range, you should consider using the “Precision Button
Throttle Setup described next.
PRECISION MANUAL BUTTON THROTTLE SETUP
If you want precise control over throttle ranges and which engine sounds are selected at each throttle
position, you should consider using the manual button setup procedure. Normally the range of throttle
stick movement is assumed to be 1000us from OFF position for forwards only throttle or +/- 500us
around neutral position for forwards/reverse throttles. If your radio does not respond like this you can
set up the actual throttle pulse widths using the two push buttons.
This mode is configured using the SFXPC4.1.3 Software Control Panel->Hardware Tab. See the
SFXPC4SWManual.pdf Software Manual for details.
You only need do this once for each transmitter/receiver and throttle settings such as mixes, trim tabs
etc. If you subsequently alter any throttle setting you should repeat this process. Progress is indicated
by the LEDs.
To setup the Throttle Settings manually using the Setup Buttons, follow these steps :
1) Switch on your transmitter with the throttle controls in their NEUTRAL positions for model boats or
tanks or OFF positions for model aircraft, then switch on your receiver and sound module. The red
and green LEDs should flash alternately for about six seconds, or whatever delay period has been
configured in the Control Panel->Hardware Tab.