CDD-1 CD-player/DAC
User Manual
Gato Audio CDD-1 - CD-player / DAC
Contents
Don’t Be a Stranger
3
Contents
3
Safety First!
4
About the CDD-1
General Design
CD Transport
Digital Inputs
DAC
Analogue Stage
Components
PCB design
Fine-Tuning by Ear
5
5
5
5
5
5
5
5
5
Set-Up
Basic Connection
Overview
6
6
6
CD Mode
Power On
Stand by
Using the Clamp
Loading Disc
TOC (Table of Contents) Display
No Disc/Read Error
Playing a CD
Pause
Stop
Scan Reverse/Forward
Direct Track Selection
Total Time
Repeat
7
7
7
7
8
8
8
8
8
8
9
9
9
9
DAC Mode
Input Selection
Digital Input
Depth and Resolution
Changing Input While Playing a CD
10
10
10
10
10
RC-1 System Remote
11
Installing USB Driver
Requirements
Windows PC Installation and Set-Up
Mac Installation and Set-Up
12
12
12
13
Make It Last!
14
If All Else Fails…
14
Tech Stuff
15
Page 2
User Manual
Don’t Be a Stranger
Thank you for purchasing the Gato Audio CDD-1. We are absolutely confident that it will bring you many hours of listening pleasure.
We hereby cordially invite you to join the Gato Audio family by registering your product online. You may also consider signing up for our
newsletter to receive information about exciting new products, events and technical updates.
All this and more on www.gato-audio.com
Our very best,
Gato Audio
Contents
Please check that the following items are present and accounted for:
• 1 Gato Audio CDD-1 CD-player/DAC
• 1 Gato Audio CDD-1 clamp
• 1 mains cable
• 1 CD-ROM with USB driver for Windows
• 1 small screwdriver for adjustment of display illumination
• This manual - it’s in your hand 
Page 3
Gato Audio CDD-1 - CD-player / DAC
Safety First!
Mains Plug and AC Cable
• Insert the mains plug fully into the mains outlet socket.
• Use only the original mains cable provided.
• Do not move the CDD-1 while it is connected to mains.
• Do not place heavy objects on the mains cable or place the cable near any source of heat.
• Do not use damaged mains plugs or socket outlets.
Liquids
Electricity and liquids are never a safe combination, therefore:
• When cleaning the CDD-1, remove the mains plug.
• Do not handle the mains plug with wet hands.
• Do not spray any liquid directly onto the CDD-1.
• Do not place liquid containers above or near the CDD-1.
• In short, keep all liquids well away from the CDD-1.
…And
• This is not a toy and should not be handled like one (by children OR adults).
• Do not remove the covers of the CDD-1 (for service, see page 14).
• Do not attempt to insert foreign objects into the CDD-1 (for service, see page 14).
• Do not cover the CDD-1 with cloth or block the air vents in any way.
• Place the CDD-1 only on a stable, horizontal surface.
• When the CDD-1 will not be used for an extended period, disconnect the mains plug.
• The CDD-1 is built for indoor temperatures (15-25 degrees Celsius). Let it acclimate itself to room temperature before use, if it has
been exposed to cold temperatures.
• Make sure that the CDD-1 is able to breathe with unobstructed free space on all sides.
• This is a Class 1 laser product. Class 1 is the lowest hazard classification of lasers and poses no threat to skin or eyes - even if you look
directly into the beam. But don’t be a hero and try to stare into the laser anyway...
Page 4
User Manual
About the CDD-1
General Design
Developing CD players and digital-to-analogue converters (DAC’s) is almost an art form, a delicate mix of digital and analogue signal
circuits that must combine the best of both worlds. Advanced software and microprocessor technology keep track of every movement
and build a bridge between man and machine. The CDD-1 is designed to match the Gato Audio AMP-150 amplifier to perfection; together,
their performance and styling set them apart from all other contenders in high end audio today.
CD Transport
A stable platform for retrieving data from the CD is essential for playback of the highest fidelity. The renowned Philips CDpro2LF drive is
mounted in approximately 1 kg of solid machined aluminium suspended in a tripod of Sorbothane® viscoelastic material to ensure not
only ultra-low mechanical resonance, but also high damping of external vibrations.
The special clamp/lid solution secures and stabilises the CD and acts as a protective cover for the delicate mechanics in one simple
movement.
Digital Inputs
The selected input source (CD, USB or S/PDIF) is fed into our high quality selector circuit and passed on to the state of the art sample rate
converter which upsamples all inputs to 24-bit/192 kHz. This enables the use of gentler and less harsh digital and analogue filters later in
the process.
DAC
All retrieved inputs, CD, USB or S/PDIF is fed into our high quality selector circuit and passed on to a state of the art sample rate converter,
converting all inputs to 24 Bit/192 kHz. This enables the use of softer and less harsh digital and analogue filters later in the process.
The dual mono, dual differential coupled D to A converter circuit with outstanding technical quality and theoretically 132 dB dynamic
range – converts and process the digital data. Specially selected balanced I/V converters and soft HF filters offers precise and dynamic
sound that is true to life.
Analogue Stage
Specially selected components and circuits are crucial to achieving the finest analogue performance. The CDD-1 features super low noise,
wide-bandwidth amplification and special signal relays originally developed to handle extremely sensitive telecommunications signals.
Close proximity to the output connectors ensures a very short signal path, low noise and minimal distortion. Many hundreds of hours have
been invested in fine-tuning this critical section of the CDD-1.
Components
Every single component in the CDD-1 must live up to stringent production tolerances and over-specified values, but equally importantly,
selection of any component is contingent upon approval of its sonic capabilities through an obstacle course of intensive listening tests.
Simply put, if it does not sound right in its circuitry environment, we cannot use it, regardless of how good its measured values are. This
is the only way to maintain a natural, crisp and clear soundstage. Most CDD-1 components operate at a mere 30% of their maximum
workload capacity during normal use to ensure longevity and minimum stress for the player.
PCB design
Internally, the CDD-1 is divided into three parts, each with its own separate, dedicated printed circuit board:
1. Control board with advanced Motorola Coldfire microprocessor and various interface functions, such as display, knobs, etc.
2. Power supply with a total of three transformers and nine regulated sources for stability and minimal interference between circuits.
3. Digital and analogue audio circuits, connectors and USB device.
Fine-Tuning by Ear
The final 5% of fine-tuning and voicing is by far the most complicated and time-consuming aspect of our development work. Each time a
single critical component is replaced, it often requires modification of voltage and current supplies and consequently, listening evaluation
starts all over again.
In addition, blind-test listening is used, not just in our own reference installation, but also in various other systems, in order to evaluate the
CDD-1 just as thoroughly as every other product in our range.
Page 5
Gato Audio CDD-1 - CD-player / DAC
Set-Up
Basic Connection
Follow these steps to install CDD-1 in your system:
1. Place the CDD-1 as per the instructions on page 4
2. Connect digital inputs to the CDD-1
3. Connect the CDD-1 outputs to an amplifier
4. Connect mains power to the CDD-1 and turn it on. While the CDD-1 is starting up, the display backlight will flash
5. Remove the clamp and place CD in the drive, and put the clamp back on. Enjoy!
Overview
RCA
output
Balanced
output
S/PDIF
output
S/PDIF
input
USB
input
Mains
lead
Mains
switch
Live
ANALOGUE
DIGITAL
Bal out
R
L
S /PDIF
RCA out
R
L
Out
In
Made in
Denmark
USB
Backlight
Neutral
Mains
230 VAC
60W max
T=315mA
USB
Only replace fuse with same type and rating
Track/Bit
S/PDIF
SN: 002200003
CLASS 1 LASER PRODUCT
DO NOT REMOVE COVER. NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL.
TO REDUCE THE RISK OF ELECTRICAL SHOCK OR FIRE, DO NOT EXPOSE THIS APPLIANCE TO MOISTURE OR RAIN.
*002403003*
Previous track/
Scan backward
88,2
96
track
bit
Next track/
Scan forward/
Play/Pause
32
44,1
48
Display backlight dim - Adjust intensity of display illumination to desired level using the small screwdriver included with the player.
176,4
Display with Time, Track and Input indication
total
19
2
Repeat
time
Time/
Resolution
96
track
IR sensor
bit
32
44,1
48
88,2
Input
176,4
Stand by
Display
Previous
Play
Next
19
2
total
time
CDD-1
Stand by
Page 6
Digital input
selection
Toggle time
read out
Previous track /
Scan reverse
Play / Pause / Stop
Next track /
Scan forward
Stand by LED
Resolution
Disc/Status
User Manual
CD Mode
The CDD-1 is actually two machines in one: a CD player and a DAC. The following chapter will describe the CD player.
Power On
Use the rear panel mains switch to power up the CDD-1. The CDD-1 is now in standby mode.
Stand by
The CDD-1 can exit or enter stand by mode by pressing Stand by on the front panel or
on the RC-1 system remote. The CDD-1 will need
a few moments before it is ready. Only the microprocessor and the stand by LED are powered during stand by. Therefore, the CDD-1 has an
ultra-low stand by power consumption of less than 1W.
Using the Clamp
The clamp has several functions. It attaches the disc firmly to the drive motor and protects both drive and disc during playback. The clamp
is aligned and held in place by magnets and can be placed in eight different positions. Follow these simple instructions to familiarise
yourself with the clamp:
Start by placing a CD in the drive with the label side up.
Stand by
Input
Display
Previous
Play
Next
Stand by
Input
Input
Previous
total
time
time
CDD-1
CDD-1
When the clamp is lifted from the drive, the disc indicator
Stand by
Display
total
Display
Previous
Play
Next
Stand by
Input
Next
will blink.
Display
Previous
total
total
time
time
CDD-1
CDD-1
Place the clamp on top of the disc.
Play
Play
Next
Then turn the clamp left or right
until it snaps into place.
Reverse these steps to remove the clamp and change disc: Turn the clamp left or right to loosen it, lift it up, change disc.
To protect the CD drive and laser, we recommend leaving the clamp in place on the CD drive, also when it is not in use.
Page 7
Gato Audio CDD-1 - CD-player / DAC
Loading Disc
When the clamp is in place, the CDD-1 will immediately start searching for and reading the disc TOC (Table
of Contents). Meanwhile, the display will show a double dash and the track symbol will blink.
96
track
bit
32
44,1
48
88,2
176,4
19
2
total
time
TOC (Table of Contents) Display
If the CDD-1 is able to read the TOC, it will display the number of tracks on the disc. The disc status indicator
will be lit and the arrow will show how much space is being used on the disc. A full disc contains 80 minutes
on this scale. If the disc contains more than 80 minutes, the arrow will go beyond the scale.
96
track
bit
32
44,1
48
88,2
176,4
total
Empty disc
time
96
88,2
track
bit
44,1
48
Full disc/
80 min.
32
No Disc/Read Error
If the clamp is placed in an empty drive or if the disc TOC is unreadable, the display will show a double dash
and the track symbol will blink.
19
2
If a disc is loaded while the CDD-1 is in another input mode (USB
or S/PDIF ), the CDD-1 will still
search for the TOC, but the TOC will not be displayed until CD input mode is selected.
176,4
19
2
total
time
96
bit
44,1
48
88,2
track
32
Playing a CD
When the TOC has been loaded successfully, press Play on the CDD-1 or press the centre button on the RC-1
system remote.
176,4
The Play symbol
will be lit and the arrow will show the progress of the track - from start to the end of the
track. At the end of the track, the arrow will return to zero and start displaying the progress of the next track.
19
2
total
time
96
bit
44,1
48
88,2
track
32
Pause
To pause CD playback, press Play on the front of the player or the centre button on the RC-1 system remote.
The play symbol
will start blinking in the display. Press again to continue playing.
176,4
19
2
total
time
88,2
track
bit
44,1
48
button on the RC-1 system
96
32
Stop
To stop playback, press and hold Play on the front of the CDD-1 or press the
remote.
176,4
The display will show the disc TOC when the CD has been stopped.
time
Page 8
19
2
total
User Manual
Select Previous/Next Track
Press Previous or Next on the front panel of the CDD-1 to skip to the previous or the next track or use the
or the
buttons on the RC-1 system remote.
96
track
bit
32
44,1
48
88,2
176,4
19
2
total
time
96
track
bit
32
44,1
48
88,2
176,4
19
2
total
Scan Reverse/Forward
To scan backwards, press and hold Previous on the front of the CDD-1 or press and hold the
button on
the RC-1 system remote. To scan forward, press and hold Next on the front of the CDD-1 or press and hold
the
button on the RC-1 system remote. Scan speed will increase if the button is held more than 10
seconds.
time
96
bit
32
44,1
48
88,2
track
176,4
19
2
total
Direct Track Selection
On the RC-1 system remote, press the number buttons to select a track directly. To select a track number
greater than 10, press the 10+ button followed by the appropriate number button (for instance, for track 17,
press 10+ and 7). To select a track above 20, press 10+ twice followed by the appropriate number button.
And so on...
time
Total Time
Press Display on the front panel of the CDD-1 to view playback progress for the entire disc - from start to the
end of the disc. At the end of the disc, the display will show the TOC information as described earlier.
96
bit
32
44,1
48
88,2
track
176,4
19
2
total
To return to displaying playback status of the current track, press Display again.
time
Repeat
Press the
Repeat.
96
bit
button to set the CDD-1 in Repeat mode. Press again to toggle through: Repeat All - Repeat 1 - No
32
44,1
48
88,2
track
176,4
19
2
total
time
Page 9
Gato Audio CDD-1 - CD-player / DAC
DAC Mode
CD
Before connecting the CDD-1 to your computer via USB, please read installation instructions on page 12.
USB
S/PDIF
button on the RC-1 system remote to switch between input
VOLUME
VOLUME
RC-1 type 1
RC-1 type 2
96
88,2
48
Digital Input
When a digital input has been selected, the display will change. Small numbers will light up outside the scale
and track display will show bit rate. If no signal is recognized by the CDD-1, the display will show a double
dash and the arrow will point at zero.
track
bit
44,1
RC-1 Type 2: Press Input on the CDD-1 or the
sources on the CDD-1.
button on the RC-1 system remote to switch between input
32
Input Selection
RC-1 Type 1: Press Input on the CDD-1 or the
sources on the CDD-1.
176,4
19
2
total
time
96
bit
44,1
48
88,2
track
32
Depth and Resolution
When a digital signal has been recognized by the CDD-1, the bit depth will be displayed and the arrow will
indicate the resolution, as shown in the example to the right; 24 bit, 48 kHz.
176,4
19
2
total
time
96
bit
44,1
48
88,2
track
32
Changing Input While Playing a CD
If you change input on the CDD-1 while playing a CD, the CDD-1 will automatically pause playback. If you
return to the CD input within a minute, the CD will automatically resume playing. If you do not return to the
CD input within a minute, the CD will stop.
176,4
time
Page 10
19
2
total
User Manual
RC-1 System Remote
The RC-1 is the infrared system remote control for Gato Audio products. It is included with the Gato Audio AMP-150 integrated amplifier
and is optional for the CDD-1.
Here is a quick overview of the RC-1 layout:
Standby - Press to put the CDD-1 and AMP-150 in standby. Press again to power up.
Mute - Press to mute the AMP-150. Press again to return to the previous volume level.
Next Input - Clockwise input selection on the AMP-150.
VOLUME
Previous Input - Counter-clockwise input selection on the AMP-150.
Volume - Turn the wheel clockwise to increase or counter-clockwise to decrease the volume
level of the AMP-150.
Play / Pause - Toggle between play and pause on CDD-1.
CD Input Select - Press to toggle between inputs on the CDD-1: CD
- S/PDIF
- USB
Repeat - Press to set the CDD-1 in Repeat mode. Press again to toggle through:
Repeat All - Repeat 1 - No Repeat.
Stop - Press to stop CDD-1 playback.
Next Track/Scan Forward - Press to select the next track on the CDD-1.
Press and hold to scan forward.
Previous Track/Scan Reverse - Press to select the previous track on the CDD-1.
Press and hold to scan backward.
1-9 /10+ Direct Track Selection - Press appropriate number button(s) for direct track selection
on the CDD-1
Page 11
Gato Audio CDD-1 - CD-player / DAC
Installing USB Driver
Requirements
Minimum computer configuration required for USB audio streaming:
• Intel Core 2 @ 1.6 GHz, or AMD equivalent with 1 GB RAM
• USB 2.0 interface
• One of the following operating systems:
• Windows XP with SP3 (32 bit)
• Windows Vista with SP2 (32 bit & 64 bit)
• Windows 7 (32 bit & 64 bit)
• Apple OS X 10.6.4 (Snow Leopard) or higher
Because there are so many PC configurations out there, we cannot guarantee that you will be able to stream audio on USB even if your
system meets the requirements above.
Windows PC Installation and Set-Up
Before connecting the CDD-1 to your PC for the first time, you will have to install the CDD-1 USB driver.
Load the CD-ROM that came with the CDD-1 into your PC. Setup will start automatically - If not, click on Start  Computer. Right-click on
the icon of your CD/DVD drive and choose Install program.
Choose you prefered destination for the
installation and click Install
Click Next to start installation
When prompted, please connect the CDD-1 to af free USB port on your computer.
Click Finish to complete the installation
Page 12
During the installation process on Windows XP,
yyou mayy see this message.
g Please jjust click
Continue anyway
User Manual
Cllick Start  open Control panel  Select Hardware & sound  click on Sound
Select Gato Audio CDD-1 as playback device
and click Set Default
To adjust output format, click Properties and
select the Advanced tab
Mac Installation and Set-Up
No driver installation is needed on the Mac. The driver will be
installed automatically when the CDD-1 is connected to your Mac
for the first time.
To set up your Mac to send audio to the CDD-1:
Open Finder  Choose Utilities  Open Audio MIDI setup
In Audio MIDI setup select the Gato Audio USB 2.0 device and then
choose Use this device for sound output. Set your sample rate and
bit resolution at Format.
Page 13
Gato Audio CDD-1 - CD-player / DAC
Make It Last!
Please apply simple common sense in order to maintain sound quality and extend the lifespan of the CDD-1. Here are a few guidelines:
• Regular care: wipe the surfaces carefully with a clean, soft, dry cloth.
• Cleaning: if necessary, wipe surfaces clean with a soft cloth dampened only with clean water.
• Grease stains or fingerprints can be removed carefully with a clean, soft cloth lightly dampened in a mix of clean, lukewarm water and
a single drop of household washing-up liquid. Then wipe the surface dry with a soft, dry cloth.
• Be careful never to use hot water or any type of concentrated cleaning agent, solvent, thinner or any other volatile substance. This
could cause permanent damage to the surface.
• Do not expose the CDD-1 to direct sunlight or other heat sources.
If All Else Fails…
…Don’t panic! Every Gato Audio product is covered by a minimum two-year warranty. See our website for details.
This warranty does not cover damage or wear directly or indirectly caused by improper use, violence, tampering with or unauthorized
access to or servicing of any part of the product.
In the unlikely event that your CDD-1 should ever require service or repair, please do not hesitate to contact us at hello@gato-audio.com
or visit our website www.gato-audio.com for more information.
Page 14
User Manual
Tech Stuff
Technical Specifications
Output Level
2.2 V unbalanced, 4.4 V balanced
Output Impedance
100 Ω unbalanced, 200 Ω balanced
Frequency Response
20 Hz – 20 kHz ± 0.2 dB
THD+N
0,002 %
Signal-to-Noise Ratio
120 dB
Digital Inputs
Up to 24 bits @ 192 kHz (S/PDIF and USB input)
Drive
Compatible with red book CD and CD-R
Digital Output
75 Ω coaxial S/PDIF
Connectors
Balanced Analogue Output
1 pair gold-plated XLR Neutrik
Unbalanced Analogue Output
1 pair gold-plated RCA
Digital Output
1 pc. gold-plated RCA
Digital Inputs
1 pc. gold-plated RCA and 1 pc. USB type B
Size & Power
Power Requirements
115 VAC or 230 VAC, 50 Hz or 60 Hz
Fuse
20 mm sand-filled, 630 mA @ 115 V, 315 mA @ 230 V
Power Consumption
Stand by <1 W, Playing<30 W , Max<60 W
Dimensions (WxHxD)
325 x 110 x 375 mm / 12.8 x 4.3 x 14.8 “
Weight
10 Kg. / 22 lbs.
Page 15
Gato
audio
Marielundvej 28
DK-2730 Herlev
Denmark
www.gato-audio.com
hello@gato-audio.com
510009 GA CDD-1 MAN 1.3 1304
Phone: +45 4095 2205