Power Acoustik PQ-7 Owners Manual

SOUNDSTREAM

Parametric Equalizer

Owner's Manual

and

Installation Guide

1.

CONGRATULATIONS

Congratulations for buying this Sound Stream product
and thank you for your confidence!

With this Sound Stream Equalizer you have purchased

.n innovative and professional high-end product, which

+

ill enable you to enjoy your music on a very high quality

level for many years.
We have especially focused on electronic as well as

product design to give you a product that will accompany

you for

ahead and will still be modern for many years.
Sound Stream products represent the experience our

engineers have made through many years assisted by
car audio magazines as well as professional installers.

Please read these instructions very carefully, to avoid
unnecessary trouble and defects.

In case of trouble, please contact your local dealer or
check our
shooting. There we also offer up-to-dates hints and
technical support for you.

-adjustments for your car model. Using these adjustments,
you do not need any additional measurements.

The SOUND STREAM PQ-7 is a state-of-the-art 6-channel
/
of resonances and peaks caused by the car's geometry
itself.

niany years, as our products are always one step

website www.soundstream.com for trouble

ur website www.soundstream.com offers many ptimized

7-band car audio equalizer, engineered for the correction

So, even the best speaker is not able to reproduce music
as it was, since the car's own sound is always added to
the music. By filtering this garbage out, the sound becomes
more clear, precise and more hi-fi.

-

TIPS FOR MEASUREMENTS

If you want to go one step further, optimizing the whole system
including Radio, amplifier, speakers and car acoustics, you

have to take measurements with professional equipment,

like computer
Analyzers being capable of conducting an average curve out
of many single plots in order to take measurements in several
positions. The microphone should be moved slowly from the
left ear towards the nose and then to the right ear while about

30

single measurements are taken. This way, you will get a
real average curve ensuring not to hit a point which is not
representative at all.

SAFETY

Before you make any conneetion, the battery must be
disconnected!

A

main fuse must be installed into the +12V wire within
+the first 12 from the +terminal of the battery
(insurance regulation!).

The fuse in the power line only protects the device itself,
not the battery and the car!

RTA(Real Time Analyzers). We recommend

u

The PQ-7 is not meant to be used as sound control like
bass and treble controls. That makes no sense and will
only strain the amplifier and speakers.

Additionally, the PQ-7 is equipped with a subsonic filter
and a phase shifter to reduce very low frequencies and
to correct the phase of the subwoofer in relation to the
other speakers.

Resonances and peaks caused by the car's own

,eometry cause distortions of the frequency response of

le whole sound-system which lead to a dirty and boomy

'-or aggressive, colorated sound, or both.

INSTALLATION

For safety reasons, the equalizer has to be mounted properly
and fixed to the car's body. Please fix the device using the
screws that some with your product. Be careful when drilling
holes, there might be wires, fuel lines or the gas tank behind
a wall! Never drill holes when you do not know what's behind.
Never install signal wires close to power cables to avoid
and alternator noise is being induced.

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