Gato Audio PWR-222 User manual

PWR-222
Mono Power Amplifier
User Manual

Gato Audio PWR-222 - Mono Power Amplifier
Page 2

User Manual
Page 3
Contents
Don’t be a stranger 4
Package contents 4
Safety rst! 5
About the amplier 6
General Design 6
TwinFET Power Amplier 6
Protection Circuits 6
Components 6
Fine-Tuning – by Listening 6
Setting up your amplier 7
Basic connection 7
Overview 7
How does it work? 8
Power on 8
Standby 8
Display modes 8
VU Meter 8
Temperature 8
Dim 8
Input Setting 9
Protection warnings 9
Make it last! 10
If all else fails… 10
Technical specications 11

Gato Audio PWR-222 - Mono Power Amplifier
Page 4
Don’t be a stranger
Thank you for purchasing the Gato Audio PWR-222. We are absolutely condent 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. We are also present on several social media
like Facebook, Twitter, Instagram, Google+ and LinkedIn.
All this and more on www.gato-audio.com
Our very best,
Gato Audio
Package contents
Please check that the following is included in the package:
• 1 Gato Audio PWR-222 mono power amplier
• 1 Mains cable
• 1 Mini jack link cable
• 1 Mini jack Y-splitter cable (1pc for each pair of PWR-222)
• This manual - which you should be reading now 

User Manual
Page 5
Safety first!
Mains plug and cable:
• Insert the mains plug fully into the mains outlet socket
• Do not use any mains cable other than the one provided with this amplier
• Do not defeat the ground connection
• Do not move the amplier around while it is connected to mains
• Do not place heavy objects on the mains cable or place the cable near high-temperature objects
• Do not use damaged mains plugs or socket outlets
Liquids:
Electricity and liquids are not a safe combination, therefore:
• When cleaning the amplier, remove the mains plug
• Do not handle the mains plug with wet hands
• Do not spray any liquid directly onto the amplier
• Do not place liquid containers above or near the amplier
• Keep liquids away from the amplier
…And:
• This is not a toy and should not be handled like one (by children OR adults)
• Do not remove the covers of the amplier (for service see page 10)
• Do not attempt to put foreign objects inside the amplier (for service see page 10)
• Do not cover the amplier with cloth
• Do not place the amplier on sloped or unstable surfaces
• When the amplier will not be used for a long time, remove the mains plug
• Never connect or disconnect cables when the amplier is switched on
• Do not short the amplier outputs
• This unit is made for indoor temperature (15-25OC or 59-77 OF). If it has been exposed to cold temperature, let it adjust itself to indoor
temperature before use
• Make sure that your amplier is able to breathe by securing a minimum safe distance around the heat sinks of 100 mm or 4 inches
• The amplier can get hot during use. Normal operating temperature is from room temperature to 50OC or 122OF
PWR-222
Standby Display
VU
100 mm / 4” 100 mm / 4”

Gato Audio PWR-222 - Mono Power Amplifier
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About the amplifier
General Design
The main aim for the Gato Audio design team was to create the best sounding power amplier possible inside a compact exterior.
Secondly, we wanted to create a line of products where design was not simply a question of a good-looking face plate, but a more
complete product where form and function goes hand in hand.
The top cover in either real wood veneer or painted nish can be chosen to accommodate other design elements in your home or system.
TwinFET Power Amplier
The input section features a bipolar input stage, a separate power supply for the critical driver circuit and a single set of unique high-power
MOSFET output devices able to handle current levels of more than 400 amperes without using more than one transistor for each positive
and negative period. This combines loads of power with softness and the transparent sound of a good tube amplier.
Protection Circuits
We have incorporated several advanced and highly eective protection circuits in the output stage in order to protect your amplier and
the connected speakers from abuse and faults. Heat, current and DC are under constant surveillance by a microprocessor, which will shut
down the amplier if the accepted values are exceeded.
Components
Every single component in the PWR-222 must live up to not only stringent production tolerances and over specied values, but equally
importantly, it will not be selected before having been approved for its sonic capabilities through many intensive listening tests. Simply
put, if it does not sound right inside its circuitry environment, we cannot use it regardless of how good its measurement values are. This
is the only way to maintain a natural, crisp and clear soundstage. Most of the components are only working at 30% of their maximum
workload capacity under normal use. This will ensure your amplier a long life with a minimum of stress.
Fine-Tuning – by Listening
The last 5% of ne-tuning and voicing is by far the most complicated and time consuming part of our development work. Single critical
components are replaced, and often voltage and current supplies need to be modied to accommodate them, and consequently, listening
starts all over again.
In addition, blind-test listening is used, not just using our own reference system but also in other setups, as measures we have taken to
complete this amplier just as comprehensively as every other product in our range.

User Manual
Page 7
VU
XLR female pin out
Mains
switch
Fuse
compartment
Setting up your amplifier
Basic connection
Follow these steps for setting up your system in this sequence:
1.Place the PWR-222 as per the instructions on page 5
2.Connect the input to the amplier
3.Connect your loudspeaker to the amplier
4.Connect mains power cable to the amplier and turn it on
5.Enjoy!
Overview
Made in
Denmark
RCA
XLR
Link
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.
Speaker Input
+
Mains
Live
Neutral
PWR-222
Standby Display
VU
Speaker terminalsMains
socket
Balanced input
Standby button Display button
Analogue input12 V trigger
Pin2 + Pin1 Shield
Pin3 −
Pointer
Standby/Dim LED
Temperature Scale
VU Meter Scale
0 dB
Display with VU Meter and Temperature read-out
Input selection switch
+6 dB
WarmCold
∞

Gato Audio PWR-222 - Mono Power Amplifier
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How does it work?
Power on
Use the mains switch on the back of the amplier to turn it on. The amplier will enter Standby mode.
Standby
To exit Standby mode press the Standby button on the front of the amplier. It will need a few moments
before it is ready. Press the Standby button again to enter standby.
It is possible to control the standby mode by connecting it to a piece of equipment featuring a 12 V trigger
(e.g. pre amplier or integrated amplier) with a mini jack cable. The power amplier will then go into standby
in sync with the connected equipment.
Display modes
The central display of the amplier can be set to show three dierent display modes which are described
below. To select a display mode simply press the Display button on the front panel of the amplier. The display
will switch modes in this order:
VU MeterTemperatureDisplay Dim
VU Meter
The VU meter display mode shows the output power of the amplier. The pointer responds to peaks on a scale
illustrated by two white end brackets. The red bracket indicates 0 dB.
Temperature
The PWR-222 core temparture can be read out in the display.The scale is illustrated by two white end brackets.
The pointer will show the temperature. The normal working temperature for the amplier is right about 12
o’clock.
Dim
The display can be dimmed by pressing the Display button on the front of the amplier. The display is now
turned o except for one LED indicating the dimmed display state. Press the button again to exit display
dimming mode.
Standby
Power up routine
VU Meter
VU
Dimmed Display
Temperature
0 dB
+6 dB
Warm
Cold
∞

User Manual
Page 9
Input Setting
The input selction switch is placed on the back of the amplier by the input connectors. Use this to select wether RCA or XLR input is active.
Protection warnings
The PWR-222 is equipped with a sophisticated protection circuit to protect the amplier and/or the connected
equipment in case of failure. The PWR-222 features three warning signals:
Temperature:
If the amplier develops too much heat and reach a high internal and external temperature it will automatically
shut down. During this fail condition the “temp” and the standby LED will ash. Please turn o the amplier
by the mains switch on the back, allow a 10 minutes cooling time and check following points before turning
the amplier on again:
• The ventilation around the amplier
• The speaker cable and cable connections
• The specication of the connected loudspeakers
Clipping and DC:
This failure can either be generated by too high listening volume with large amount of clipping and distortion,
or by a malfunction in the connected equipment. The amplier will shut down and the “VU” and standby LED
will ash. Please turn o the amplier by the mains switch at the back. Before switching on the amplier again,
please check the following:
• The speaker cables and cable connections
• The connected equipment
• That the volume is set below the ampliers clipping range
If the warning lights keep ashing after the power up routine, please turn o the amplier and contact your
dealer or the national distributor.
Short Circuit:
During a short circuit of the ampliers output or a failure from the components inside, the amplier will shut
down and the standby LED will ash. Please turn o the amplier by the main switch. Before turning on the
amplier please:
• Remove speaker cables and other cable connections (except mains cable)
• Check the connected cables and equipment
• Check that the volume is set below the ampliers clipping range.
If the warning lights keep ashing after the power up routine, please turn o the amplier and contact your
dealer or the national distributor.
Temperature Warning
Short Circuit Warning
Clipping and DC Warning
VU

Gato Audio PWR-222 - Mono Power Amplifier
Page 10
Make it last!
Please apply simple common sense to maintain the sound quality and lifespan of your new Gato Audio amplier. Here are a few guidelines:
• Regular care: wipe the surfaces carefully by using a clean soft dry cloth
• Cleaning: if necessary, wipe the hard surfaces clean using a soft cloth dampened only with clean water.
• Grease stains or nger marks can be removed carefully with a clean soft cloth lightly dampened in a mix of clean lukewarm water and a
single drop of dish-washing liquid. Then wipe the surfaces dry using a soft dry cloth
• Be careful never to use hot water or any type of concentrated detergent, solvent, thinner, or any other volatile substance on the surfaces,
or you may cause permanent damage to the surface coating
• Keep the cabinet away from prolonged contact with rubber or PVC materials
• Do not expose the amplier to direct sunlight or other heat sources
If all else fails…
…don’t panic! Every Gato Audio product comes with a minimum 2-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.
If you are in need of service or repair, please do not hesitate to contact us at [e-mail] or visit our website www.gato-audio.com
for more information.

User Manual
Page 11
Technical specifications
Output power (230 VAC)
Frequency response
Total Harmonic Distortion
Signal to noise ratio
Input impedance
Voltage gain
Recommended speaker load
Load Protection
Connectors
Balanced analogue input
Unbalanced analogue input
Speaker output
Trigger, 12 V
Size & Power
Power Requirements
Fuse
Power consumption stdb/idle/max
Dimensions (WxHxD)
Weight
1x 250 W RMS 8 Ω / 1x 450 W RMS 4 Ω
20 Hz-20 kHz - 0.1 dB, and 2 Hz-100 kHz - 3 dB
< 0,003%
> 115 dB
100 kΩ RCA and 100 kΩ Balanced
26 dB
4 -16 Ω
Speakers < 1.5 Ω
1 pc of gold plated XLR Neutrik
1 pc of gold plated RCA
1 pair of WBT NextGen
1 mini jack
115 VAC/230 VAC, 50 Hz/60 Hz, 800W max
20 mm sand-lled, 6,3 AT@115 VAC, 3.15 AT@230 VAC
< 1W/55W/800W
325 x 105 x 400 mm / 12.8 x 4.1 x 15.7”
16 kg / 35.3 lb

Gato Audio
Marielundvej 28
DK-2730 Herlev
Denmark
Phone: [phone]
www.gato-audio.com
[email protected]
510015 GA PWR-222 MAN 1.0 1509