compression ratio MAZDA MODEL RX 8 2009 Owners Manual (in English)

Black plate (230,1)
lThe maximum number of characters
that can be used for file names is as
follows. However, this unit will only
display up to 30 characters, including
the file extension (.mp3).
Maximum number of
characters in a file name
(including a separator “.”
and the three letters of the file extension)
ISO9660 level 1 12
*
ISO9660 level 231*
Joliet extended
format 64
Romeo extended
format 128
* English one-byte characters (capitalized only) and underbar “_ ” are available.
CAUTION
This unit can only play MP3 files that
have an MP3 file extension (.mp3)
attached. Do not attach an MP3 file
extension to any other type file as it
could cause noise to be emitted or a
malfunction in the unit.
About ID3 Tag display
lThis unit can only display ID3 Tag
album, track and artist names that have
been input using Ver.1.0/1.1/2.2/2.3
formats. Any other data that may have
been input cannot be displayed.
lThis unit can only display English
(including numerals) one-byte
characters. Use only English (including
numerals) one-byte characters when
inputting ID3 tags. Two-byte characters
and some special symbols cannot be
displayed.
Specialized glossary
MP3
Abbreviation for “MPEG Audio Layer 3 ”.
A technical standard for audio
compression as decided by an ISO
(International Organization for
Standardization) MPEG working group.
Use of MP3 allows for audio data to be
compressed to approximately a tenth of
the source data size.
ISO 9660
An international standard for logical
formatting of CD-ROM files and folders.
It is divided into three separate levels
based on differences in file naming
procedures, data configuration and other
characteristics.
Multi-session
A session is the complete amount of data
recorded from the beginning to the end of
a single period of CD-ROM, CD-R/CD-
RW data recording. Multi-session refers to
the existence of data from two or more
sessions on a single disc.
Sampling
Refers to the process of encoding analog
audio data at regular intervals and
converting it to digital data. The sampling
rate refers to the number of times a
sample is taken in one second and is
expressed in Hz units. Increasing the
sampling rate improves the sound quality
but also increases the data size.
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Interior Comfort
Audio System
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*Centerpoint®(Bose®Sound System-
equipped model)
Centerpoint
®offers you the experience of
5.1-channel surround sound in your
vehicle even with your conventional 2-
channel stereo CDs.
Centerpoint
®can be set on or off.
NOTE
lCenterpoint®operates optimally with a 2-
channel stereo CD. MP3 audio files can be
played, however, MP3 audio files encoded
with high compression may result in poor
sound quality.
lCenterpoint®is available for 2-channel
stereo audio except for AM radio/FM radio/
SIRIUS digital satellite radio/AUX.
* Centerpoint®is a registered trademark
of Bose Corporation.
BEEP setting
The beep-sound when operating the audio
system can be set on or off.
ILLM EFT setting (Illumination setting
during operation)
The audio system illumination during
operation can be set on or off.
Interior Comfort
Audio System
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Specifications
qEngine
Item Model
Type Rotary engine
Displacement 654 ml × 2 (654 cc × 2, 40.0 cu in × 2)
Compression ratio 10.0
qElectrical System
Item Classification
Battery 12V-55AH/5HR
Spark-plug number Trailing side
N3Y1 18 110A, N3H1 18 110D
*1
Leading sideN3Y8 18 110A, N3Y9 18 110A, N3H5 18 110A*1
Spark-plug gap 1.15―1.25 mm (0.046 ―0.049 in)
*1 ex factory
CAUTION
When cleaning the iridium plugs, do not use a wire brush. The fine particulate
coating on the iridium alloy and platinum tips could be damaged.
q Lubricant Quality
Lubricant Classification
Engine oil Refer to the recommended SAE viscosity numbers on page 8-12.
Manual transmission oil API Service GL-4 (SAE 75W-90)
Automatic transmission fluid JWS3309
Rear differential oil API Service GL-5 (SAE 90)
API Service GL-5 (SAE 80W-90)
API Service GL-5 (SAE 75W-90)
*
Brake/Clutch fluid SAE J1703 or FMVSS116 DOT-3
* Not available from Mazda
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Specifications
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Form No.8Z09-EA-08C