Matrix Mini-i User manual

24Bit /192kHz High Performance Stereo Audio Processor MATRIX
MATRIX
2 -Channels 24 bit /192 kHz
Desktop Digital Audio Processor
Mini-i
User Guide

24-Bit /192kHz High Performance Stereo Audio Processor MATRIX
Thank you for purchasing MATRIX digital audio processor!
This manual book provides you with general information you
need to start using your audio processor. Please read carefully
before installing and using it.
Enjoy the unbounded pleasure brought you by the remarkable
performance of Mini-i.
Be sure to keep all user
documentation handy for
future reference, including
the Model No. & Serial No.
CAUTION: For the prevention from fire and electric
shock, do not let the appliance drench with rain and get
wet.
CONTENTS
● FEATURES ………………………………………………………………2
● INTRODUCTION ………………………………………………………2
● FRONT PANEL …………………………………………………………3
● BACK PANEL……………………………………………………………3
● LCD PANEL ……………………………………………………………4
● SETTINGS & USAGE……………………………………………………4
● CONNECTIONS ………………………………………………………6
● TROUBLESHOOTING …………………………………………………6
● TECHNICAL SPECIFICATIONS ………………………………………7
● CUSTOMER SERVICE …………………………………………………8
● ACCESSORIES …………………………………………………………8
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24-Bit /192kHz High Performance Stereo Audio Processor MATRIX
● FEATURES
All the following features enable Mini-i to explore every small detail in the music for you,
and provide you a tactile sensation of its sound performance, with its ultra-high resolution
and signal-to-noise ratio, to fully meet your demands for a high-quality Hi-Fi.
zA double-AD1955-balanced structure with two AD1955 241Bit/192kHz D/A converting
units.
zA professional digital receiver chip of ultra-low jitter and an independent system clock.
zUSB, AES/EBU, OPTICAL, and coaxial digital signal input modes, and a coaxial output.
zUp to 24BIT/192kHz digital signal input.
zA professional stereo OP-Amp, OP275/OPA2134, to provide you with the best signal
playback effect.
zA digital volume controller that covers 90 steps.
zBoth balanced and unbalanced output, which enables it to be connected to other
analog devices with different interfaces at the same time.
zIts internal circuit units adopt the multi-stage stabilized voltage supply independently
zIts internal headphone amp unit can easily drive any headphones of 300 ohms and
below.
zIts LCD Panel displays current play message and setting information, which is
user-friendly
zWorking mode: Pre-mode and DAC mode
zAutomatically saves the current volume value and channel state while shutting down.
Restart, it will restore to the pre-shutdown settings.
zWhile starting up or switching channels, the sound will fade in so as to prevent shock
and hearing damage caused by excessive volume
● INTRODUCTION
Please put Mini-i in a well-ventilated place away from heat source, and avoid dust
accumulation and excessive vibration.
For the prevention from fire, please reserve some secure space around Mini-i according
to the following requirements:
zat least 5cm on both sides and its back,
zat least 10cm from its top.
Do not stack Mini-i with other equipments which generate lots of heat, otherwise it may
lead to the decline of Mini-i’s working stability. It may even damage Mini-i, or cause other
serious accidents.
Mini-i cannot bear fierce collisions. Please handle it gently while carrying, so as not to
cause unnecessary damage.
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24-Bit /192kHz High Performance Stereo Audio Processor MATRIX
● FRONT PANEL
Power LED Volume / channel control knob
Headphone jack LCD panel
● BACK PANEL
Digital coaxial input R analog output
Digital coaxial output R balanced analog output
USB input L balanced analog output
OPTICAL input Power switch
AES/EBU input Power in
L analog output
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24-Bit /192kHz High Performance Stereo Audio Processor MATRIX
NOTE: The USB input interface is only to be used on a PC with Windows2000/XP/vista
operating system.
● LCD PANEL
Input Mode Track
Sampling Rate Time
Volume
● SETTINGS & USAGE
POWER ON
Turn on the power, and Mini-i will automatically start self-check. After 0.5 second, the
internal headphone output relay will automatically close. Meanwhile, the LOGO and the
software version No. will be displayed on the LCD panel.
Self-check completes after about 1 second. Then it will enter into the normal working
state, and the LCD panel will display the current information.
If you don't use Mini-i for a long time, please turn it off and unplug the power cable.
INPUT SETUP
Press the Volume/Channel control knob on the front panel to switch the signal input
channels. While switching, the LCD panel will display the current input channel in area 1. It
switches over in an order of 1-2-3-4 circularly. If the currently selected channel is not
connected to external devices, the LCD panel will display NO SAMPE in area 2, indicating
no signal input. If the input signal is detected, the current input signal sampling rate and
signal format will be displayed.
The channel setting will be automatically saved while shutting down. Restarted, it will
maintain this setting state. On switching the channel, the volume will increase gradually
until it reaches the pre-set value within about 1.5 seconds to prevent you from hearing
damage.
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24-Bit /192kHz High Performance Stereo Audio Processor MATRIX
VOLUME SETUP
In the state of playing, by turning the volume/channel control knob, you can adjust
the volume up and down within the range from 0 to 90dB. And the current volume value
will be displayed on the area 3 of the LCD panel.
The current volume value will be automatically saved when you shut it down. On being
restarted, it will restore to the pre-shutdown settings.
When you restart Mini-i, the volume is designed to increase gradually until it reaches
the pre-set value within about 1.5 seconds to prevent you from hearing damage.
While you adjusting the volume, all analog output volume will follow to change.
You can easily use the decoder as a Pre-AMP.
WORKING MODE
PRE-MODE:
This is the default mode pre-set by the factory. Working under this mode, volume
control can be implemented while connected to any of the analog output ports. And it is
also very convenient to use your headphone under the pre-mode.
DAC MODE:
Under this mode, all the analog output levels are of their standard value. To get the
best sound performance, the headphone will be turned off under this mode.
SETUP MEOD:
Press the volume/channel control knob while power off, then switch the power on, at
this time it will enter the set-up menu for you to choose a working mode. The menu will be
shown as the picture below:
Pre-mode DAC mode Cursor
Turn the volume/channel control knob to switch the cursor to the working mode you
need, then press it, so that MINI-i will save the settings automatically, and work under that
mode.
Once the mode you set up has been saved, it will automatically enter that mode next
time you turn on the audio processor.
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24-Bit /192kHz High Performance Stereo Audio Processor MATRIX
PLAY MESSAGE DISPLAY
When Mini-i is connected to a CD player, it will automatically detect the input signals for
Q-SUB CODE, and display the track information and time duration of the current play in
area 4 and 5 on the LCD Panel. When Mini-i fails to obtain the Q-SUB CODE, information will
be automatically hidden.
When connected to a computer by USB or through the sound card, it will not perform
this function, because digital signals processed by the computer software will no longer
output Q-SUB CODE information.
HEADPHONE OUTPUT
The standard 1/4”stereo headphone jack of high-quality on the front panel can drive
any headphone of 300 ohms and below, which makes it very convenient to use your
headphone by connecting to it.
COAXIAL OUTPUT
Mini-i possesses a digital coaxial output. The output state depends on the condition of
the output channel. This channel directly outputs current digital signals. It also supports the
original code output such as AC-3, DTS and so on. Mini-i cannot playback signals of the
non-PCM format. It is very easy to connect it with other digital audio equipments or AC-3,
DTS decoders.
● CONNECTIONS
AES/EBU input balanced analog output
● TROUBLESHOOTING
Check the following before calling for service:
zWhether all the connections have been done correctly or not
zWhether you operate Mini-i properly or not
If your problems cannot be solved by the remedies listed in the following table, it might
due to the malfunction of Mini-i’s internal circuitry. In that case, please immediately
unplug the power cable and contact the MATRIX distributor.
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24-Bit /192kHz High Performance Stereo Audio Processor MATRIX
SYMPTOMS CAUSES REMEDIES
Off power zIt might be not plugged into a
proper AC or turned off
zMake sure the power
cable is connected to a
proper AC
NO SAMPE shown
all the time
zDigital input cable disconnected or
no input signal
zDigital signal outputs abnormally
zMake sure the digital
input cable is linked up
correctly
zCheck the digital signal
output
No analog output zAnalog port disconnected
zVolume has been turned to
minimum
zConnect the audio cable
correctly
zAdjust the volume
No Headphone
output
zIt might be working under the DAC
Mode
zSwitch to the Pre-mode
GENERAL MALFUNCTION:
Common breakdowns might be caused by an interrupted AC power. Or the device is
troubled by static electricity. Under these circumstances, turn it off and unplug the
main power at least for a minute, then reconnect and restart it.
● TECHNICAL SPECIFICATIONS
DIGITAL INTERFACE:
INPUT:
OPTICAL: Shielded/enclosed optical input Sampling Rate: 44.1kHz ~192kHz
BNC : Standard BNC 75 ohm Sampling Rate: 44.1kHz ~192kHz
USB r: Standard USB-B connector Sampling Rate: 44.1kHz ~48kHz
AES/EBU: Standard XLR interface Sampling Rate: 44.1kHz ~192kHz
OUTPUT:
Coaxial Output: standard RCA jack Supports AC-3, DTS data output
Sampling Rate: 44.1kHz ~192kHz Output Level: 1Vp-p (75 ohm)
ANALOG INTERFACE:
RCA Output Level: 0V~ 2.0V adjustable
Balanced Output Level: 0V~ 4.0V adjustable (XLR : 1=GND, 2=HOT, 3=COLD)
Frequency response: 20Hz~20KHz
SNR: 105 dB
Dynamic Range: 108 dB
Distortion : ＜0.0002%（1KHz）
POWER REQUIREMENT:
Power： AC 220V 50/60Hz (AC 110V in U.S.)
Power consumption： ＜15W
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24-Bit /192kHz High Performance Stereo Audio Processor MATRIX
OTHER SPECIFICATIONS:
Operating temperature： 0~+40℃
Weight： 1.2kg
Dimension：(L×W×H) 205×155×48mm
NOTE: Specifications subject to changes without prior notice.
● CUSTOMER SERVICE
From the date of purchase, MATRIX provides you a one-year-limited warranty.
This warranty is limited to the malfunction of our products only caused by the quality
problems of the original components or manufacturing issues.
Any failure and losses result from ignoring the cautions mentioned in this instruction or
misusing as follows are NOT covered by the warranty and any liability:
zInappropriate connection to the power.
zAttempts to disassemble the product.
zCircuit modification by the customer.
zUnauthorized replacement of the original components.
zOther unauthorized changes done by the customer.
● ACCESSORIES
Make sure all items shown below are included. If not, please contact us.
USB cable Power cable
User guide BNC/RCA adaptor
MATRIX
08/2009 6792 0003 0905
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