Stello CDA320 24/192 User manual

Thank you for choosing the Stello CDA320 from April Music.
The Stello CDA320 is a truly innovative design embodying a brand new concept in CD
player making that combines the CD transport and D/A converter section in a single chassis.
As a unique entry-level model, the CDA320 stands out amongst a myriad of relatively
affordable CD players. Intended for 2-channel reproduction, the CDA200 will compete
favorably against, and even surpass, the performance of the latest available digital formats.
The Stello CDA320 is designed to operate at the following line voltages; 117,
230(220), 240 volts AC. This proper voltage is selected through internal voltage
selector switches.
The Stello CDA320 is a highly sensitive electronic apparatus. The best performance
results will be achieved when used on a leveled, vibration free shelf system, away
from airborne vibration.
The 'Mains' switch is located on the rear panel. The 'Stand-by' switch can be
operated manually on the front panel and through the red button of the remote
control. During a normal daily operation use only the 'Stand-by' switch leaving the
'Mains' switch in the 'on' position. The amount of current draw in the stand by mode
is very small while the internal circuitry is maintained at an optimal operating
temperature. It is, however, recommended to turn the 'Mains' switch off or unplug
the AC power lead when you plan to leave the house for a prolonged period of time.
Do not open the chassis without prior authorization from the manufacturer or a
certified Stello agent. Unauthorized repair or tempering of any type will void the
manufacturer's warranty.
INTRODUCTION
CAUTION
Page1
CDA320 24/192 CD PLAYER & CONVERTER

True 192 kHz upsampling
The Stello CDA320, utilizes a true 24 Bit/192kHz 'upsampler' DAC chip with Full Balanced
Output, resulting in a significantly improved resolution, dynamics and soundstage of the
musical recordings, even with standard 16 Bit/44.1kHz CDs.
In order to achieve the improvement in sound quality and mechanical reliability, and
compared to many other upsampler DAC that use Digital Signal Processing (DSP) software,
the CDA320 applies a hardware based upsampling technology to manage the Digital to
Analogue conversion process. A selectable sampling rate switch enables the user to choose
between Bypass, 96 kHz or 192 kHz during play. This enables the user to listen to a variety
of different sound reproduction and choose the format most suitable for each CD, each
recording.
Digital Inputs
The digital input section of CDA320 consists of 1 Coaxial and 2 Toslink. Connected to any of
these three inputs, DVD, LD, MD or any component with digital output up to 24Bit/96kHz can
be upsampled to 24Bit/192kHz.
FEATURES
Page2
CDA320 24/192 CD PLAYER & CONVERTER
Power Supply
There are 2 separate toroidal power transformers feeding power to the digital and the analog
sections independently. Separate Toroidal Transformers for analog and digital circuits.
Separate Stages of power regulations for each function blocks. High quality electronic
components and gold plated RCA connectors.
Transport Mechanism
The CDA320 uses the VAM1202 transport mechanism from Philips. This model employs the
latest available technology for improved readability and is compatible with any CD, CD-R
format.
The Product
The appearance of the CDA320 alone is a clear indication that this is no ordinary CD player.
Taking a closer look inside the CDA320 reveals the true dedication of talented audio
engineers. Ultimately through the sound transpires the true love of music and devotion to
faithful sound reproduction. The CDA320 is a direct result of innovative thinking! Innovative
thinking is thinking outside the convention, it is challenging the accepted norm. Regardless
of the digital format war, the CDA320 will provide you with a sound reproduction that is one
step closer to achieving that musical nirvana, the true sound.

CD Player
Fig. 1] The Rear Panel
Use a pair of XLR (balanced) or RCA (unbalanced) interconnects between the analog
output of the CDA320 and the CD input of your preamplifier or integrated amplifier.
When using the balanced connection, the Pin 2 must be positive. Make sure this
complies with your other audio equipment.
(Consult with your dealer for the modification of the pin connection if necessary)
The balanced and the unbalanced outputs can be connected simultaneously.
To use the CDA320 as a dedicated CD transport uses the Digital Output section. The
signal output can be directed to an external D/A converter or a digital recording
apparatus. The use of a top quality digital, coaxial or Toslink cable is highly
recommended for this application (Consult your local dealer for recommendations).
The CDA320 can be used as a top quality 24Bit/96kHz Digital to Analog converter. Any
input signal can be upsampled up to 24Bit/192kHz. Audition carefully for a prolonged
period and select the upsampling rate that will best suite your system and listening
habit.
There are three sets of inputs, one coaxial and two Toslink.
All digital apparatus like DVD player, LD player, Satellite Set Top Box, MD player can
be connected with the CDA320 as long as their sampling rate is under 24Bit/96kHz.
Most DVD players are equipped with a minimum of one coaxial and one Toslink digital
outputs.
For connecting to a Surround Processor, you can choose between the coaxial or the
Toslink connection. For listening to 2-channel audio where the primary focus is musical
reproduction quality rather than surround sound experience, we recommend the use of
the coaxial digital input connection with a first grade 75 Ohm nominal digital cable.
CONNECTION
Page3
CDA320 24/192 CD PLAYER & CONVERTER
Digital to Analog Converter

OPERATION
Page4
CDA320 24/192 CD PLAYER & CONVERTER
CD Player
Fig. 2] The Front Panel
Fig. 3] The Display Window
STANDBY
Turn on 'Mains' power switch located on the rear panel. Red LED above the 'STANDBY'
switch will begin to glow. Turn on the unit by pressing the 'STANDBY' button once. The LED
will change to green and the CDA320 is now ready for use.
UPSAMPLE
The factory setting for the UPSAMPLE rate is 192 kHz. A red LED indicates
the selected rate.
You may select during play your favorite sampling rate by pressing the UPSAMPLE button.
The selection will alternate between 192 kHz, 96 kHz and Bypass. A small click sound
during selection is normal.
OPEN / CLOSE
Use this button to open or close the disc tray. Place the CD with printed label side up.
PLAY
Press 'PLAY' to play the disc.
The track number and relapsed time will be displayed on the right side.

CD Player
STOP
Use this button to stop playing.
The complete information of CD will be shown on the display window.
PAUSE
Use this button to pause. To resume play again, press 'PAUSE'.
TRACK
Press this button to skip the track forward or backward. Select the track you wish to play by
pressing one of the arrow buttons then press PLAY to start the music. While playing, press
one of the arrow buttons to skip tracks. Play will resume automatically on the selection of
your choice.
REPEAT
There are three Repeat functions, repeat all, repeat 1 or repeat cancel. If you want repeat
the whole CD, choose 'REPEAT' and press 'PLAY'. If you want to repeat only one track,
choose the track you wish to repeat and press 'REPEAT' until display shows 'REPEAT 1'.
Then press 'PLAY' button to start the music. Press the 'REPEAT' button once more to
cancel the repeat command.
OPERATION
Page5
CDA320 24/192 CD PLAYER & CONVERTER

OPERATION
Page6
CDA320 24/192 CD PLAYER & CONVERTER
CD Player
STOP
Use this button to stop playing.
The complete information of CD will be shown on the display window.
PAUSE
Use this button to pause. To resume play again, press 'PLAY'.
TRACK
Press this button to skip the track forward or backward. Select the track you wish to play by
pressing one of the arrow buttons then press PLAY to start the music. While playing, press
one of the arrow buttons to skip tracks. Play will resume automatically on the selection of
your choice.
REPEAT
There are three Repeat functions, repeat all, repeat 1 or repeat cancel. If you want repeat
the whole CD, choose 'REPEAT' and press 'PLAY'. If you want to repeat only one track,
choose the track you wish to repeat and press 'REPEAT' until display shows 'REPEAT 1'.
Then press 'PLAY' button to start the music. Press the 'REPEAT' button once more to
cancel the repeat command.

Remote Control
[Fig. 4] The Remote Controller Layout
OPERATION
Page7
CDA320 24/192 CD PLAYER & CONVERTER
STBY
Same as STANDBY switch of the front panel (red button)
DISC
Open/Close (blue button)
SCAN
Pressing this button will play the beginning of each track for
10 seconds. Should you find the track you want to play, press
'SCAN' once more to play the track.
PROG
Use this function to play only the programmed tracks.
To program, select the track by pressing the appropriate track
number or moving to a track number with the arrow buttons or
Press the 'PROG' button to initialize the selection. If you want
to program more than one track, just select the desired track
and press 'PROG' after each selection until the selection is
completed.
Press 'PLAY' to start your selected program. After your
program selection is completed, the display will show the first
track and the total time of your selected program. For
example, if you want to listen to tracks 8, 3, and 13 out of 15
tracks disc, press 8 > PROG > 3 > PROG > 13 > PROG >
PLAY.
Press the 'STOP' button to stop the CD. The selected
program is still initialized. If you press 'PLAY' again, the CD
will start from track 8 again up to 13. If you select 'REPEAT'
tracks 8, 3 and 13 will be played repeatedly. To deactivate the
'PROG', press 'STOP' and then press 'STOP' again. The
'PROG' indicator on the display will be turned off.
STBY
DISC
SCAN
FAST
PROG TIME
A/B SHUF
REP PAUSE STOP PLAY
1 2 3
4 5 6
7 8 9
0

Remote Control
OPERATION
Page8
CDA320 24/192 CD PLAYER & CONVERTER
TIME
Press the 'TIME' key once to show the TOTAL playing time. Press the 'TIME' key again to
show total remaining time and the TIME REM will be displayed. Press 'TIME' once more
to make go back to the normal display.
A/B
Use this function to listen to a selective section of the track. During the playback, press
'A/B' at the exact time you want to begin. A- will appear at the bottom of display window.
Then at the exact time you want end, press 'A/B' key again. Display will change from to
A-B and the music will jump back to the A-and play until the B. This function will repeat
continuously. Press the 'A/B' key to cancel the time-selected repeat function.
SHUF (SHUFFLE)
Tracks will be played playing in random order. Press 'SHUF' again to deactivate the
function.
During playback, fast search forward or fast search backward to the exact location of the
track. Press the double arrows to move forward or to go backward. The search speed will
increase when the button is pressed longer. The music will play at normal speed when
you release the button.
The other function keys have a similar effect to the switches the 'Front Panel' of the
CDA320.

Digital/Analog Converter
Fig. 5] The Front Panel & Rear Panel
OPERATION
Page9
CDA320 24/192 CD PLAYER & CONVERTER
You can use the CDA320 as a dedicated D/A converter by using the DIGITAL INPUT.
Stop the CD Player when using the CDA320 as a D/A converter for maximum
performance.
Connect external devices by using the Coaxial or Toslink cable. Press the 'EXT'
INPUT button on the front panel to choose the exact digital input used. There are
three inputs and the red LED will be lit in the following sequence:
COAX1-OPT1-OPT2-OFF.
If you do not use CDA320 as a D/A converter, select the EXT. INPUT in OFF position
by pressing the button until the red LED if turned off.
The digital signal supplied to the digital input of the CDA320 must be lower than
24Bit/96 kHz. The digital signal will be automatically detected and the sampling rate
can be selected from the front panel switch.
NOTE: Using your DVD Player as a dedicated transport for 2-channel reproduction,
adjust the digital output of your DVD player to the PCM (96 kHz or 48 kHz) mode.

CD PLAYER / DAC SECTION
Transport Mechanism Philips VAM1202
Format Audio CD (CD-DA), CD-Recordable (CD-R)
Input Data 16 to 24Bits/32 to 96 kHz Automatically Locked
Upsampler Bypass, 96 kHz, 192 kHz Selectable
DAC 24/192 Delta-Sigma Digital to Analog Converter
Dynamic Range 110 dB Type
Signal-to-Noise Ratio 120 dB Type
Distortion 0.003 %, 1 kHz
0.002 %, 10 kHz
0.002 %, 20 kHz
Frequency Range 10 Hz - 20 kHz (-0.5dB)
Sampling Frequency Bypass to 192 kHz, automatic
Power Consumption 10 Watts
Dimensions (WHD) 435 x 105 x 345 mm
AC Mains 117/230(220)/240 V, 50 or 60 Hz
Analog Output Full balanced Class A operation
Full functional remote control (RC-5)
INPUT/OUTPUT
Analog Outputs 1 RCA / Unbalanced stereo L & R channel
1 XLR / Balanced stereo L & R channel
Digital Outputs 1 Coaxial (RCA, 75 Ohm), 1 Toslink (Optical)
Digital Inputs 1 Coaxial, 2 Toslink.
Weight 8 Kg
All specifications are subject to improvement without further notice.
SPECIFICATIONS
Page10
CDA320 24/192 CD PLAYER & CONVERTER

INTERNATIONAL LIMITED WARRANTY
The warranty service is valid only when purchased from an authorized dealer. A valid proof of
purchase must be supplied for all warranty services. Any unauthorized work, modification or
service rendered on the player will void the warranty.
SPECIFICATIONS
Page11
CDA320 24/192 CD PLAYER & CONVERTER
Warranty Period
2 years
Date of Purchase
Authorized Stello Dealer
Telephone
Serial No.
Authorized Stello Service Center