Instruction manual

13
Put the helmet on and play preferably the same piece of music that you listened to earlier, and try to
focus on one speaker/side at a time, while moving the helmet up, down, backwards and forwards and
also side to side to listen for any improvements or loss of sound level and quality.
If for example, moving the helmet forwards (on one side) improves the sound level or quality for that
speaker, it means your speaker is set too far back, so readjust it forwards, and keep fine tuning the
position until any movement forwards or backwards only reduces the sound quality/level and does not
improve it, meaning that you have found the best horizontal position for that speaker. Do the same for
the other side and then test for up and down.
If for example, moving the helmet up (on one side) improves sound level or quality for that speaker, it means
the speaker is set too low, so adjust the speaker upwards, and do this accordingly with each speaker/side
until you are happy that you have the best possible vertical and horizontal positioning for each speaker.
If you now push the side of the helmet towards your head and notice improved sound, it means you
need to pack that speaker out on some foam so that it is nearer to your ear. Do this to both sides, and
then recheck each side for vertical (up, down) alignment and also again for horizontal (back and
forwards) and adjust each speaker until it cannot be improved.
Ensure the sound is equally balance to both ears, if it is slightly louder or has more bass in one ear it means
the other speaker is out of alignment (or need more packing out) until the sound from both speakers are equal.
Needless to say you will need to find the best compromise in both comfort and sound quality/level, and
your comfort will almost certainly be your top priority, however please remember that angling the
speakers as show in the diagram on page 8, and avoiding the top part of your ears will greatly help to
improve both positioning/sound level and quality while maintaining maximum comfort.
It may take a little extra time now to get each speaker correctly positioned and fine tuned but it will
pay huge dividends in sound quality, high speed performance and comfort, especially if you intend using
high attenuation earplugs.
When you are convinced that you have fine tuned your speaker positioning to perfection in your first
helmet installation, you should now retest the other headset (that’s not been installed) and see if you
can hear any difference between the installed headset and the one held properly over your ears? It
really is worth every minute extra of your time to make the installed headset sound every bit as good
at the one held properly over your ears.
When you have completed your first helmet installation you will almost certainly find that it is a lot
easier and less time consuming installing and tuning your second helmet. But if it is different or you
have any doubts please ask your supplier for advice.
Top Tips (10)
Note you may need to slightly readjust your speakers for more comfort during your first ride out and
until they have settled in, or perhaps in time should they slide up in your helmet through putting
the helmet on and off.
If passing an approved Autocom dealer you can ask them if you can compare your headset installation
with their ear-defender demo/test headsets in the shop. It is a good idea to do this at least once every
six months just to check your speakers haven’t move over time through putting the helmet on and off.
TESTING THE INSTALLATION AND FINE TUNING THE
SPEAKERS AND MICROPHONE POSITIONING
SETTING THE VOX PRE-SET SENSITIVITY CONTROL
READY FOR YOUR FIRST RIDE
Start with the VOX sensitivity preset control set as in picture A
(soft/easy/sensitive) and go for a ride to see if the helmet noise at speed
can false trigger the VOX. If it does then before adjusting the VOX preset
control, first double check that you have blocked the air vents on the
inside of the chin-bar of your full face helmet, as this not only prevents
wind from blowing directly onto the back of the microphone, it also forces
more airflow up into the visor area and so helps with demisting your visor.
If using an open face helmet, ensue you have fitted the optional Open
Face Conversion Kit (OFCK) Part 2156 properly to the microphone. If
these are done and the VOX still false activates when not speaking,
please slightly turn the VOX preset control clockwise (about
1
⁄8 of a turn
at a time) and try it again. Keep doing this until you have set the VOX
such that helmet noise will not accidentally turn it on at speed when you are not speaking.
If the VOX is hard to operate, first check that you are properly positioning the microphone and using
the LOUD-SPOT (If using an open face helmet, ensue you have fitted the Open Face Conversion Kit
(OFCK) properly and the right way round to the microphone). If so then please turn the VOX pre-set
control
1
⁄8th turn anticlockwise (to set the VOX threshold lower) and try again. If required keep doing
this until the VOX is easy to speak to, without helmet noise activating it when not speaking.
Top Tips (11)
Use some of the Velcro supplied to block the vents on the inside of the chin-bar of your full face
helmet, as this not only prevents wind from blowing directly onto the back of the microphone, it also
forces more airflow up into the visor area and so helps with demisting your visor.
WARNING; if the VOX is set too low it will false activate when riding at higher speeds, which will cause the
music to keep muting and/or bike to bike transceiver to keep transmitting when not speaking at speed, and
this would prevent you from being able to receive bike to bike communications. This is why it is very
important to correctly set the VOX and why you must find and use the microphone LOUD SPOT rather than
reduce the VOX level to compensate. Remember, not having the master volume controls set any higher
than required helps you to naturally speak louder and so operate a higher VOX setting with less effort.
If during your first ride you find that you need to adjust either of the master volume control levels, only
make small adjustments at a time and test again.
A
Logic Instructions 8/5/09 3:28 pm Page 13