Soundigital SD 400.4D Evolution Owner'S Manual Download Page 7

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Dear customer

Congratulations on acquiring your Soundigital! You've just purchased a
product of high quality and technology. The Soundigital products are
developed to assure maximum efﬁciency and reliability to your sound
system.

Class D Ampliﬁers:

The main characteristics of Class D ampliﬁers are: audio quality,
efﬁciency, versatility and compact design.

Here are the advantages of these characteristics:

- Audio Quality – Class D ampliﬁers used to have a limited response in
the past and they used to have a worse performance regarding higher
frequencies than Class AB amps, despite being more efﬁcient.
Introducing new technologies, Soundigital developed a Class D
ampliﬁer superior to the Class AB ones in efﬁciency and performance.

- Efﬁciency – The Soundigital Class D ampliﬁers have a total efﬁciency
(power source + output) higher than 70%, assuring a lower than
expected battery drain and heating.

- Versatility of uses –The ﬂat response of all the frequencies of
Soundigital ampliﬁers allows them to be used in all the kinds of
systems: SPL, Sound Quality, Trio Eletrico and Pancadao, meeting the
needs with extreme quality.

- Compact design – The high efﬁciency and technology allow our
ampliﬁers to be really compact, making it easy to install them in
vehicles where you have limited space.

Important info:

Read this manual and follow its instructions and information carefully. It
contains extremely important information to have your ampliﬁer
working properly. If you feel the need to contact our Tech Support, you
c a n r e a c h o u r t e c h n i c i a n s t h r o u g h t h e e - m a i l
[email protected]

We recommend the use of Soundigital original accessories for a better
performance. The crossovers, RCA cables and voltmeters offered by
Soundigital follow the same quality standards as our ampliﬁers,
assuring an excellent quality and high power sound system to our
customers.

To know our complete line of ampliﬁers and accessories, visit
www.soundigitalusa.com

This “Warning” sign alerts the user of
i m p o r t a n t i n f o . N o t f o l l o w i n g t h i s
instructions may cause injuries to the user or
damage to the equipment.

To prevent injuries to the user or damage to the ampliﬁer, read
all the safety instructions written on this manual;

If you have questiond about the installation of this equipment,
get in touch with our tech support or with a professional
specialized in car audio installation;

Before proceeding with the installation of any electric equipment
on your vehicle, unplug the negative (-) terminal of the battery
to avoid ﬁres, injuries or damages.

Use your sound system safely, exposure to continuous sound
pressure over 85 dB may cause irreversible hearing loss.

Package contents

· 1 SD400.4D Evolution Ampliﬁer

· 1 Owner's Manual

· 1 Promotional sticker

Contacts:

Custumer Service Phone: +55 51 3042 9001

General e-mail:

[email protected]

Tech Support:

[email protected]

Website: