C-me Matrix X User manual

Matrix X
User’s Manual
Version 1.0
Version 1.0

Matrix X User's Manual
www.cme-pro.com
Trademarks:
CME and Matrix X are the registered trademarks of Central Music Co. All the other
trademarks belong to their respective owners.
FCC INFORMATION (U.S.A)
1.
IMPORTANT NOTICE: DO NOT MODIFY THIS UNIT!
This product, when installed as indicated in the instructions contained in this manual,
meets FCC requirements. Modi cations not expressly approved by CME may void
your authority, granted by the FCC, to use the product.
2.
IMPORTANT: When connecting this product to accessories and/or another product
use only high quality shielded cables. Cable(s) supplied with this product MUST be
used. Follow all installation instructions. Failure to follow instructions could void your
FCC authorization to use this product in the USA.
3.
NOTE: This product has been tested and found to comply with the limits for a Class
B Digital device, pursuant to Part 15 of the FCC Rules. These limits are designed
to provide reasonable protection against harmful interference in a residential
environment. This equipment generates, uses and can radiate radio frequency
energy and, if not installed and used according to the instructions found in the users
manual, may cause interference harmful to the operation of other electronic devices.
Compliance with FCC regulations does not guarantee that interference will not occur
in all installations. If this product is found to be the source of interference, which
can be determined by turning the unit “OFF” and “ON”, please try to eliminate the
problems by using one of the following measures:
Relocate either this product or the device that is being affected by the
interference.
Utilize power outlets that are on different branch (circuit breaker or fuse)
circuits or install AC line  lter(s).
In the case of radio or TV interference, relocate/reorient the antenna. If the
antenna lead-in is 300 ohm ribbon lead, change the lead-in to co-axial type
cable.
If these corrective measures do not produce satisfactory results, please contact
the local retailer authorized to distribute this type of product. If you cannot
locate the appropriate retailer, please contact CME.
The above statements apply ONLY to those products distributed in the USA.

Matrix X User's Manual
Contents
FCC INFORMATION (U.S.A)..............................................2
Introducing the Matrix X................................................4
Front Panel....................................................................5
Rear Panel.....................................................................6
Connection examples...................................................8
Connection examples of front panel.................................................................8
Connection examples of rear panel..................................................................9
Signal  ow chart (block diagram)....................................................................9
Examples of Matrix X usage..........................................10
1. Stand-alone Mode.....................................................................................10
A. Connecting to a synthesizer or electric piano for live performance......10
B. Listen to music......................................................................................10
C. Practice or play Electric Guitar / Bass along with music.......................11
D. Vocal Practice and Karaoke..................................................................11
2. Working together with sound card..........................................................12
A. Recording from the Line In...................................................................12
B. Recording from a microphone..............................................................12
C. Recording an Electric guitar (or bass)...................................................13
Matrix X setting chart...................................................14
Speci cations..............................................................14
Matrix X Technical information......................................15

Matrix X User's Manual
Introducing the Matrix X
The Matrix X is a small, multi-function, professional audio system, which
integrates a microphone pre-ampli er with +48V phantom power, a Direct
Box for connecting a guitar or bass, a 5-channel dual bus stereo mixer and dual
headphone ampli ers. The unique dual bus design makes Matrix X the best
choice for use with a computer based hard-disk recording system or when you
want to add a microphone to a digital instrument with line in and line outs. For
example, use the Matrix X with a synthesizer with a sampling function or to add
vocals to a digital piano with line inputs and outputs.
Using the Matrix X with a Sound card or simple computer USB Audio I/O
After connecting Matrix X to your sound card or I/O, your new music-making
system will include many practical and convenient functions. Matrix X features
not only inputs and outputs for transmitting signal to/from sound card but also
two headphone outputs with independent volume control knobs for different
monitoring needs. Matrix X also features different connectors such as Line
In, Monitor Output, gain adjustable Mic In and Guitar In to satisfy all of your
music-making needs. In addition, the Line In of Matrix X can receive un-
balanced signals and convert into balanced signals. Furthermore, Matrix X
provides +48V phantom power to support professional microphones.
Hardware Direct Monitor is another advantage for Matrix X users. Signals from
the Line In, Mic In or Guitar In can be sent to the headphone outputs or monitor
speakers directly by pressing the Direct Monitor button. Un-pressing the button
will route those signals to the input of the sound card then out to the sound
card’s output and through Matrix X back to the headphone output or monitor
speakers. This is a convenient function to compare the sound before and after
processing and recording on the computer.
Besides working with a sound card, Matrix X can be used as a stand-alone
device to add a microphone or guitar to a keyboard that has a line in and out.
Simply connect the audio matrix and you can easily add a microphone or guitar
to a digital piano with speakers or increase in the number of headphone outputs.
Matrix X is a unique utility mixer that  ts many different audio applications
because of its  exible and powerful design. It’s especially useful in a small
computer recording environment. You’ll  nd that Matrix X will come in handy
for many different situations and that it’s quality and cost performance is
outstanding.

Matrix X User's Manual
Front Panel
Matrix X front panel has all of the input gain and output volume control knobs,
and the switches for direct monitor, phantom power and guitar signal. Below is
the detail of Matrix X front panel.
1.
XLR / TS combo connector
You can connect a microphone or electrical guitar here. The XLR input
is balanced and provides 48V phantom power (by pressing the “48V On /
Off” button). It is suitable for professional condenser microphones. The

”
connector is un-balanced and is suitable for dynamic coiled microphone and
electric guitar or bass.
2.
Mic / Guitar In
Adjusts the gain of the signal from the combo connector
3.
In Peak
A red LED  ashes when the input signal level is near distortion indicating it
would be better to lower the input gain.
4.
In Level
A blue LED will light up and  ash if signal is available at the input channel
5.
Monitor Vol
Adjusts the volume level of the Monitor Output
6.
Head Phone 2
Adjusts the volume level of Head Phone 2
7.
Head Phone 1
Adjusts the volume level of Head Phone 1
8.
Head Phone 1
The  rst headphone output connector (stereo)

Matrix X User's Manual
9.
Phantom power LED
This LED will light up when phantom power supply is turned on and is
providing power to XLR input
10.
48V On / Off
Switches the phantom power on or off. Turn phantom power on by pressing
the button.
11.
Guitar On / Off
Pressing this button will activate the TS connector of the combo connector
to receive external signals.
12.
Direct Monitor
Switches the direct monitor function On or Off. Pressing this button down,
all of the input signals will be sent to Head Phone 1 / 2 and Monitor Output
directly. If you are using recording software to record, you should un-press
this button to avoid latency while monitoring.
13.
Power LED
This LED will light up when trun on the power of Matrix X.
Rear Panel
The main input and output connectors are in rear panel of Matrix X.
14. Power Input
Plug the bundled power adapter here for supplying power to the Matrix X .
To avoid voiding your warranty, only use the power adapter supplied for
use with Matrix X.
15.
Power On
Power switch.
16.
Head Phone 2 Output
The second headphone output connector (stereo)

Matrix X User's Manual
17.
Monitor Output
Signal monitor output connectors, the left channel is on the top, the right
channel is on the bottom. Both of the two connectors are balanced 1/4” TRS
jacks.
18.
Sound Card Output
These are stereo outputs of Matrix X. Please connect here to the Line In
of your sound card or the Aux In of an external device. These jacks could
be used as auxiliary outputs as well. The Left channel is on the top and the
Right channel is on the bottom. Both of the two connectors are balanced
1/4” TRS jacks.
19.
Sound Card Input
These are stereo inputs to Matrix X. Please connect sound card’s Line Out
or the Line Out of an external device to here. These jacks could be used
as auxiliary inputs as well. The Left channel is on the top and the Right
channel is on the bottom. Both of the two connectors are balanced 1/4” TRS
jacks.
20.
Line Input
External devices connect to these jacks to transmit analog signals into
Matrix X. The Left channel is on the top and the Right channel is on the
bottom. Both of the two connectors are balanced 1/4” TRS jack. The un-
balanced signals go into Matrix X from here can be converted into balanced
signals to prevent noise interference.

Matrix X User's Manual
Connection examples
The Matrix X is a very  exible device that features many input and output
connectors for different usage and applications. You can connect various
external equipment to meet your audio needs.
Connection examples of front panel
Note: You can only connect ONE device to the XLR / TS combo connector at
the same time, either an XLR microphone or TS E.guitar/bass. The  g.
Shows that the XLR / TS combo connector can be used to connect XLR
microphones, as well as TS E.guitar/bass, but you cannot connect XLR
device and TS device at the same time.

Matrix X User's Manual
Connection examples of rear panel
Signal  ow chart (block diagram)
The  ow chart below shows how signals are routed through the Matrix X, which
may help you better understand how to use the Maxtrix X.

Matrix X User's Manual
Examples of Matrix X usage
Matrix X features various input and output connectors to use either in stand-
alone mode or used with sound card or external device. It will meet most of
your music making, practicing and listening needs. There are some examples of
Matrix X usage below to explain how to set up and connect Matrix X to your
system. Please refer to them as a quick start guide.
1. Stand-alone Mode
In stand-alone mode, you can use the “Sound Card Input” and “Sound Card
Output” in the rear panel to connect external audio equipment .
You should connect “Monitor Output” to a set of active speakers to monitor
output sound. You can use the Head Phone 1 in the front panel or Head
Phone 2 in the rear panel to monitor, and adjust the output volume via the
corresponding control knobs.
A. Connecting to a synthesizer or electric piano for live
performance
You can use the Matrix X to add high quality microphones with phantom
power to a synthesizer with sampling functions or vocal microphone
capabilities to any external device with Line Inputs and Outputs (such as
many digital pianos).
1.
Connect the Line Out of synthesizer to the “Sound Card In” on the
rear panel of Matrix X.
2.
Connect the “Sound Card Out” on the rear panel of the Matrix X to
the Audio In of the synthesizer.
3.
Plug a microphone or electric guitar into the “Mic / Guitar In” on the
front panel of the Matrix X. Connect an external audio source to the
“Line Input” on the rear panel of the Matrix X. This signal could be
sampled by a synthesizer with a sampling function or it could simply
add a vocal signal to the output of the synth or digital piano.
4.
Please press down “Direct Monitor” button for the synthesizer without
sampling function.
5.
Please adjust the output volume from the sound source or the active
speakers. You also can do the same thing by adjusting the “Monitor
Vol.” knob.
B. Listening to music
1.
Connect the Line Out of an external sound source (e.g. DVD player)

Matrix X User's Manual
to the “Sound Card In” on the rear panel of the Matrix X.
2.
Press the“Direct Monitor” button down.
3.
Please adjust the output volume from the sound source or active
speakers. You can do the same thing by adjusting the “Monitor Vol.”
knob.
C. Practicing or playing Electric Guitar / Bass along with music
1.
Connect the Line Out of a sound source (e.g. DVD player) to the “Line
Input” on the rear panel of the Matrix X.
2.
Connect the electrical guitar (bass) signal to the TS jack of the combo
connector on the front panel of the Matrix X. To adjust the gain, turn
the “Mic / Guitar In” knob.
3.
Press the “Guitar On / Off” button down.
4.
Press the “Direct Monitor” button down.
5.
Start playing the external sound source and play electrical guitar (bass)
along with music.
6.
Please adjust music volume on external sound source. The gain of the
electric guitar (bass) could be adjusted not only on guitar (bass) but
also via the “Mic / Guitar In” knob. Use the “Monitor Vol.” knob to
adjust the main output volume.
D. Vocal Practice and Karaoke
(a) Microphone with self-powered and XLR connector
1.
Connect the Line Out of a sound source (e.g. DVD player) to the
“Line Input” on the rear panel of the Matrix X.
2.
Connect the microphone to the XLR jack of the combo connector
on the front panel of the Matrix X. To adjust the gain, turn the “Mic
/ Guitar In” knob.
3.
Press the “Direct Monitor” button down.
4.
Start playing music and enjoying Karaoke.
5.
Please adjust the music volume on the external sound source.
The gain of microphone can be adjusted via the “Mic / Guitar
In” knob. Use the “Monitor Vol.” knob to adjust the main output
volume.
(b) Phantom Powered Microphone with XLR connector
1.
Connect the Line Out of sound source (e.g. DVD player) to the
“Line Input” on the rear panel of the Matrix X.
2.
Connect the microphone to the XLR jack of the combo connector
on the front panel of the Matrix X. Adjust the gain by turning the
“Mic / Guitar In” knob.

Matrix X User's Manual
3.
Press the “48V On / Off” button down.
4.
Press the “Direct Monitor” button down.
5.
Start playing music and enjoying Karaoke.
6.
Please adjust music volume on the external sound source. The gain
of microphone can be adjusted via the “Mic / Guitar In” knob. Use
the “Monitor Vol.” knob to adjust the main output volume.
(c) Microphone with TS connector
1.
Connect the Line Out of the sound source (e.g. DVD player) to
the “Line Input” on the rear panel of the Matrix X.
2.
Connect the microphone to the TS jack of the combo connector on
the front panel of the Matrix X. Adjust the gain by turning the “Mic
/ Guitar In” knob.
3.
Press the “48V On / Off” button down.
4.
Press the “Direct Monitor” button down..
5.
Start playing music and enjoying Karaoke.
6.
Please adjust music volume on the external sound source. The
gain of microphone can be adjusted via the “Mic / Guitar In”
knob. Use the “Monitor Vol.” knob to adjust the main output
volume.
2. Working together with sound card
In Hard-disk Recording mode, “Sound Card In” and “Sound Card Out” in
the rear panel of Matrix X have to be connected to “Line Out” and “Line In”
ports of Sound card. All other connections are the same as stand-alone mode.
In this mode, we recommend not using “Direct Monitor” to avoid latency
problems. All of the input and output signal monitoring will be done by
hardware mixing of Matrix X.
A. Recording from the Line In
1.
Connect the Line Out of the sound source (e.g. DVD player) to the
“Line Input” on the rear panel of Matrix X.
2.
Set the recording device driver in the recording software.
3.
Playback music and record using the software.
4.
Use the input gain slider bar on the sound card’s control panel to set
the input signal gain.
B. Recording from a microphone
(a) Self-powered Microphone with XLR connector
1.
Connect the microphone to the XLR jack of the combo connector

Matrix X User's Manual
on the front panel of the Matrix X. Adjust the gain by turning the
“Mic / Guitar In” knob.
2.
Set the recording device driver in the recording software.
3.
Pick-up the audio signal from the microphone and start recording
in the software.
4.
Use the input gain slider bar in the sound card’s control panel or
“Mic / Guitar In” knob of Matrix X to set the microphone input
signal gain to the software.
(b) Phantom power Microphone with XLR connector
1.
Connect the microphone to the XLR jack of the combo connector
on the front panel of the Matrix X. Adjust the gain by turning “Mic
/ Guitar In” knob.
2.
Press the “48V On / Off” button down.
3.
Set the recording device driver in the recording software.
4.
Pick-up the audio signal from the microphone and start recording
in the software.
5.
Use the input gain slider bar in the sound card’s control panel
or adjust the “Mic / Guitar In” knob of the Matrix X to set the
microphone input signal gain.
(c) Microphone with TS connector
1.
Connect the microphone to the TS jack of the combo connector on
the front panel of the Matrix X. Adjust the gain by turning the “Mic
/ Guitar In” knob.
2.
Press “Guitar On / Off” button down.
3.
Set the recording device driver in the recording software.
4.
Pick-up the audio signal from the microphone and start recording
in the software.
5.
Use the input gain slider bar in the sound card’s control panel or
the “Mic / Guitar In” knob of the Matrix X to set the microphone
input signal gain.
C. Recording an Electric guitar (or bass)
1.
Connect the electric guitar (or bass) to the TS jack of the combo
connector on the front panel of the Matrix X. Adjust the gain by turning
the “Mic / Guitar In” knob.
2.
Press the “Guitar On / Off” button down.
3.
Play the electric guitar (bass) and start recording in the software.
4.
The gain of the electric guitar (bass) can be adjusted not only on the guitar
(bass) but also via the “Mic / Guitar In” knob, or you can do the same
thing using the input gain slider bar in the sound card’s control panel.

Matrix X User's Manual
Matrix X setting chart
O : Button pressed down
X :Button released
Specifications
◎
Stereo “Sound Card Input” for connecting with output of sound card (2 balanced,
1/4” TRS)
◎
Stereo “Sound Card Output” for sending signals to Line In of sound card (2
balanced, 1/4” TRS)
◎
Stereo “Line Input” to receive external line level signal (2 balanced, 1/4” TRS)
◎
Stereo “Monitor Output” with volume control for connecting active speakers (2
balanced, 1/4” TRS)
◎
2 Stereo headphone outputs with independent volume control (1/4” stereo TRS)
◎
1 “Mic / Guitar In”, with a XLR and TS combo connector that microphone and
electric guitar/bass share and a gain control knob
◎
XLR of combo connector is balanced, TS is un-balanced
◎
2 input signal LEDs (blue, one for each channel), indicate if there is any signal
available at the input channel
◎
2 input peak LEDs (red, one for each channel), indicate if an input signal is near
distortion
Mode
Usage
48V
On / Off
Guitar
On / Off
Direct
Monitor
Stand-alone
Listen to music
X
X
O
Practice or play Electrical Guitar / Bass
along with music
X
O
O
Karaoke
Microphone with self-
powered and XLR connector
X
X
O
Microphone with XLR
connector but without self-
powered
O
X
O
Microphone with TS
connector
X
O
O
With sound
card
Record from Line In
X
X
X
Record from
microphone
Microphone with self-
powered and XLR connector
X
X
X
Microphone with XLR
connector but without self-
powered
O
X
X
Microphone with TS
connector
X
O
X
Record from Electrical guitar (bass)
X
O
X

Matrix X User's Manual
◎
48V phantom power with switch (press button), provides power to XLR only
◎
1 phantom power LED (green) indicates the status of phantom power supply
◎
1 “Direct Monitor” button toggles the input signal between direct monitoring of
the input or the sound card output.
◎
1 “Guitar On / Off” button turns on “Mic / Guitar In” functio
n in front panel
Matrix X Technical information
• Number of Input Channels
5
• Number of Output Channels
4
• Number of Headphone Outputs
2
Performance
• THD + Noise
-102dBr
• Noise Floor (A-weighted)
<10uVrms
• Dynamic Range (A-weighted)
-106dBr
Input
• Connectors (guitar and microphone)
XLR/TRS combo
• Connectors (sound card input and line input)
1/4” TRS
• Input Impedance, XLR
• Input Impedance, XLR • Input Impedance, XLR
10K Ohm
• Input Impedance, High Z (1/4”)
1.5M Ohm
• Input Impedance, Line level TRS
10K Ohm
Output
• Connectors (sound card output and line output)
1/4” TS
• Connectors (headphone)
1/4” TRS
• Output Impedance (line level)
33 Ohm
• Output Impedance (headphone)
<10 Ohm
Front Panel Controls
• Gain
+8dB
• Headphone volume control
+8dB
• Pad (48V On / Off)
Switch on / off
• Pad (Guitar On / Off)
Switch on / off
• Pad (Direct Monitor)
Switch on / off
Power Supply
• Type
Linear supply
• Input
• Input • Input
15 VAC / 1000mA
• Power
• Power • Power
15 Watts
Physical
• Dimensions
14.5cm x15.5cm x4.3cm
Speci cations and appearance are subject to change without notice.