Matrix CUBE User manual

24Bit /192kHz ASRC Stereo Audio Processor MATRIX
MATRIX
2-Channel 24-bit 192-kHz ASRC
Desktop Digital Audio Processor
CUBE
User Guide

24-Bit /192kHz High Performance Stereo Audio Processor MATRIX
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Thank you for purchasing MATRIX digital audio processor!
This manual booklet provides you with general information that
you need before installing and using your audio processor.
Enjoy the infinite pleasure brought you by the remarkable
performance of CUBE.
CONTENTS
● Features …………………………………………………… 2
● Introduction …………………………………………………2
● Front Panel …………………………………………………2
● Back Panel …………………………………………………3
● Settings & Usage……………………………………………4
● Troubleshooting ……………………………………………5
● Technical Specifications …………………………………6
● Customer Service …………………………………………6
● Accessories …………………………………………………7
Be sure to keep all user
documentation handy for
future reference, including
the Model No. & Serial No.
CAUTION:For the prevention of fire and electric
shock, do NOT let the appliance deteriorate in damp
conditions!

24-Bit /192kHz High Performance Stereo Audio Processor MATRIX
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● Features
All the following features enable CUBE 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.
zTop 24Bit/192kHz D/Aconverting units，WM8740 of Wolfson
zHigh-end TI digital Sampling Rate Increase processing chip -- SRC4382
zASRC(Asynchronous Sample Rate Converter) – the technique of separating the
internal and external clock and resampling, which effectively reduces the timing
jitter generated by the former sources and transmission lines.
zA professional digital receiver chip of ultra-low jitter and a high-precision clock
independent system clock.
zUSB, OPTICAL, and coaxial digital signal input modes, and a coaxial output.
zUp to 24BIT/192kHz digital signal input
zASRC Sampling Rate can be increased to 174.6 KHz /192KHz and putout through
digital channel
zIts internal headphone amp unit can easily drive any headphones of 300 ohms
and below.
zHeadphone amplifier can work independently when it is connected to external
signal
zA professional stereo OP-Amp, OPA2134/LM833, to provide you with the best signal
playback effect.
zIts internal circuit units adopt the multi-stage stabilized voltage supply respectively.
● Introduction
Please put CUBE in a well-ventilated place away from heat source, and avoid dust
accumulation and excessive vibration.
For the prevention of fire, please reserve some secure space around CUBE according to
the following requirements:
zat least 5cm on both sides and its back,
zat least 10cm from its top.
Do not stack CUBE with other equipment which generate lots of heat, otherwise it may
lead to the decline of CUBE’s working stability. It may even damage CUBE, or cause other
serious accidents.
CUBE cannot bear fierce collisions. Please handle it gently while carrying so as not to cause
unnecessary damage.

24-Bit /192kHz High Performance Stereo Audio Processor MATRIX
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● Front Panel
Power Light Signal Indicator
ASRC Sampling Rate Increase Indicator Input Channel Switch
ASRC Sampling Rate Increase Switch Amplifier Switch
Headphone Plug-jack Volume Control Knob
● Back Panel
Amplifier L Analog Input Amplifier R Analog Input
L Analog Output R Analog Output

24-Bit /192kHz High Performance Stereo Audio Processor MATRIX
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Coaxial Digital Output Optical Digital Input
Coaxial Digital Input USB Input
Power Switch AC Power In
● Settings & Usage
Power On
Turn on the power on the back panel, and the power LED will turn red. The
initialization completes after about 0.3 second. Then it will enter into the normal
working state.
If you don't use CUBE for a long time, please turn it off and unplug the power
cable.
LED Display
zRED: Power light. Power’s on and CUBE is in the state of working.
zGREEN: Signal Indicator. CUBE has located the input signal.
zORANGE: ASRC Sampling Rate Increase Indicator. ASRC’s switched on.
Input Channels
You can choose among the OPTICAL, coaxial and USB digital signal input
channels by switching. And once the signal is detected, the GREEN LED will light
up.
ASRC Sampling Rate
When the ASRC on the front panel is switched ON, CUBE will resample the input
signal at 176.4/192kHz according to an high-precision internal clock, shutting away
the original clock of the signal, which effectively reduces the timing jitter
generated by the former sources and transmission lines.
When ASRC is turned OFF, the function of the ASRC Sampling Rate Increase is shut
down, so CUBE will convert D/A according to the original input sampling rate.
The frequency of ASRC output depends on the sampling rate of the input signal.
When the sampling rate of the input signal is 44.1kHz or its integral multiple, the
ASRC output sampling rate will be 176.4kHz; when it is 48kHz or its integral multiple,
the ASRC output sampling rate will be 192kHz.

24-Bit /192kHz High Performance Stereo Audio Processor MATRIX
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Headphone Output
The high-quality standard 1/4”stereo headphone plug-jack on the front panel
can drive any headphone of 300 ohms and below, which makes it very
convenient to use your headphone. Use the Volume Control Knob on the front
panel to adjust the volume.
When the Amplifier on the front panel is switched to the position of Internal, the
Amplifier will be connected to the internal output of CUBE and directly monitor the
output signal.
When it is switched to External, the Amplifier will be connected to the external
input and monitor external input audio signal. Meanwhile, the circuit units of CUBE
work unaffectedly.
Coaxial Digital Output
CUBE possesses a coaxial digital output. The output state depends on the
condition of the output channel. This channel directly outputs current digital
signals. When the ASRC on the front panel is switched off, CUBE will output the
original code such as AC-3, DTS and so on. When the ASRC is turned on, Cube will
increase the sampling rate to 176.4KHz/192KHz. It is also very convenient to
connect it with other digital audio equipment or AC-3, DTS decoders.
USB Driver
CUBE’s USB interface works under Win 2K / Win XP / Vista / 7, Linux, Mac OS X, but
it does not support AC-3, DTS stream signal transmission. To improve this, installation
of the USB driver provided by MATRIX is suggested. By doing so, you can also set
Xear™ Virtual 3D processing and 10-band equalizer.
● Trouble shooting
Check the following before calling for service:
zWhether all the connections have been done correctly or not
zWhether your CUBE is properly operated or not
If your problems cannot be solved by the remedies listed in the following table, it might
due to the malfunction of CUBE’s internal circuitry. In this case, please immediately
unplug the power cable and contact the MATRIX distributor.

24-Bit /192kHz High Performance Stereo Audio Processor MATRIX
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PROBLEMS CAUSES SOLUTIONS
Power OFF zUnplugged into a proper AC
zPower is turned off
Make sure the power
cable is connected to a
proper AC and turn it ON
No Signal 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 Analog port disconnected Connect the audio cable
correctly
No Headphone
output
zIt might be working under the DAC
Mode
zVolume has been turned to
minimum
zSwitch to the INTERNAL
mode
zAdjust the volume
Common 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.
● Technical Specifications
Digital Interface:
Input：
OPTICAL： Sealed Optical Input
Sampling Rate : 32kHz~192kHz
BNC ： Standard BNC 75 ohm
Sampling Rate : 32kHz~192kHz
USB ： Standard USB Connector
Sampling Rate : 44.1kHz~48kHz
Output：
Coaxial Output:
Standard RCA jack
Sampling Rate: 32kHz~192kHz，
Supports AC-3, DTS data output
Output Level :0.5Vp-p (75 οhm)
Analog Interface:
RCA Output Level： 2.0VRMS
RCA Input Impedance： 47kΩ
Frequency Response： 20Hz~20KHz
SNR： 109dB
Dynamic Range： 107dB
Distortion： ＜0.0005%（1KHz）

24-Bit /192kHz High Performance Stereo Audio Processor MATRIX
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Power Requirements：
Power： AC 220V 50/60Hz （AC110V 50/60Hz）
Power Consumption： ＜15W
Other Specifications：
Operating Temperature： 0~+40℃
Weight： 1.1kg
Dimension(L×W×H)： 160×145×44 (mm)
NOTE: Specifications subject to changes without prior notice.
● Customer Service
From the date of purchase, MATRIX provides you a one-year warranty.
This warranty only covers the malfunction of our products 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 and
misusing as follows are NOT covered by the warranty and any liability:
zInappropriate power connection
zAttempts to disassemble the product
zCircuit modification by the customer
zUnauthorized replacement of the original components
zOther unauthorized changes done by the customer
● Accessories
Power cable User guide BNC/RCA Adaptor
MATRIX
07/2010 6792 0003 1005