AGD TEMPO User manual

AGD Productions, Inc.
AGD Tempo di GaN Stereo Power Amplifier Operating Manual_Rev1 Page. 1 of 20

AGD Productions, Inc.
AGD Tempo di GaN Stereo Power Amplifier Operating Manual_Rev1 Page. 2 of 20
“TEMPO”di GAN
Stereo Reference Amplifier
by AGD Productions, Inc.

AGD Productions, Inc.
AGD Tempo di GaN Stereo Power Amplifier Operating Manual_Rev1 Page. 3 of 20
“TEMPO”di GaN
STEREO Reference Amplifier
by AGD Productions, Inc.
Operating Manual
Rev.01
Document Date, November 25th, 2021
CAUTION
THE UNIT CONTAINS NO USER SERVICEABLE PARTS.
DO NOT REMOVE THE PANELS OR ANY SCREWS OR CONNECTORS.
DO NOT OPERATE THE UNIT WITHOUT THE GLASS TUBE FULLY
INSERTED IN THE PROPER SOCKET.
DO NOT OPERATE THE UNIT IF WET OR NEAR WATER OR IN
UNCONTROLLED OUTDOOR CONDITIONS.
BE CERTAIN TO INSTALL IT IN A SECURE LOCATION FROM WHICH IT
CANNOT FALL OR TIP OVER.
TIME SPENT FAMILIARIZING YOURSELF WITH THIS MANUAL WILL BE
WELL REWARDED.

AGD Productions, Inc.
AGD Tempo di GaN Stereo Power Amplifier Operating Manual_Rev1 Page. 4 of 20
Table of content:
1. About this document......................................................page 5.
2. Letter from AGD Team ...................................................page 6.
3. Important Safety Instructions ........................................page 7.
4. Specification ...................................................................page 8.
5. Unpacking the AGD TEMPO ...........................................page 9.
6. Installation of the AGD TEMPO......................................page 10.
7. Back Panel Description...................................................page 11.
8. Operation .......................................................................page 12.
9. Fault Conditions..............................................................page 15.
10. Fuse replacement...........................................................page 16.
11. Troubleshooting .............................................................page 18.
12. CE and FCC Certification.................................................page 19.

AGD Productions, Inc.
AGD Tempo di GaN Stereo Power Amplifier Operating Manual_Rev1 Page. 5 of 20
1- About this document
This Owner’s Manual covers unboxing of, familiarization with, and
configuration of your new amplifier. This manual will enable you to optimize
the behavior and performance of your amplifier to fit your preferences of
your equipment and listening room.
This user manual is integral part of the AGD “TEMPO”and must be available
and consulted prior the installation of the equipment.
AGD “TEMPO”is designed to operate indoor and must be utilized uniquely
for the scope of audio signal amplification within the specifications and
conditions defined in the manual.
It is strongly recommended that you follow this manual in the order in which
it is written so that you understand the safety considerations before
configuring the amplifier.

AGD Productions, Inc.
AGD Tempo di GaN Stereo Power Amplifier Operating Manual_Rev1 Page. 6 of 20
Dear Customer,
I have always been driven by my passion to merge perfection and
beauty in the art of Audio reproduction. The GaN MOSFET
technology gave me the opportunity to commence this journey in
the Hi-End Audio. Therefore, it is so important for all of us at
AGD to thank you for choosing the AGD “TEMPO” di GaN for
your unique Hi-End audio experience. The AGD “TEMPO”is one
of the most advanced Hi-End Power Amplifier on the market
today. Among other remarkable innovations, it is also our first
STEREO Hi-End Amplifier design to use the unique GaNPower
modular technology. The Gallium nitride Power MOSFETS
components we choose are the main reason for the stunning
acoustic characteristics of the AGD TEMPO. The key elements of
the GaN output power stage are integrated in a dedicated board,
the AGD GaNPower Module, that allows the possibility for future
seamless upgrades of the power stage. The AGD “TEMPO” is a
leading-edge power electronics design into an extremely compact
mechanical solution, that delivers an unprecedented sublime and
incredibly realistic audio reproduction experience. We at AGD
Productions are confident the “TEMPO” di GaN will meet your
expectations and we will always stand in support of your needs
and future requirements.
Sincerely
Alberto Guerra
CEO, AGD Productions, Inc.

AGD Productions, Inc.
AGD Tempo di GaN Stereo Power Amplifier Operating Manual_Rev1 Page. 7 of 20
3- Important safety instructions:
READ ALL INSTRUCTIONS: All the safety and operating instructions
of your AGD VICACE MONOBLOCK AMPLIFIER should be read before
power is applied to the equipment.
RETAIN OWNER'S MANUAL: These safety and operating instructions should be
retained for future reference.
READ WARNING: All warnings on the unit and in the operating instructions should
be adhered to.
FOLLOW INSTRUCTIONS: All operating and use instructions should be followed.
CLEANING: Unplug the unit from the wall outlet and leave for at least 10 min. - make
sure the unit is not hot before you start cleaning. Use dry or damp soft cloth to clean
the surfaces. Do not use corrosive/abrasive spray for cleaning.
VENTILATION: Do not block any ventilation openings. Do not install near any heat
sources such as radiators, heat registers, stoves, or other apparatus (including other
amplifiers). The unit should not be installed in a built-in location such as a bookcase
or rack unless proper ventilation is provided.
GROUNDING: Do not defeat the safety purpose of the grounding-type plug. A
grounding-type plug has two blades and a third grounding prong. The third prong is
provided for your safety. If the provided plug does not fit into your outlet, consult
an electrician for replacement of the obsolete outlet.
POWER CORD PROTECTION: Protect the power cord from being walked on or
pinched particularly at plugs, convenience receptacles, and the point where they
exit from the apparatus.
LIGHTNING: Unplug this apparatus during lightning storms or when unused for long
periods of time.
SERVICING: Refer all servicing to qualified service personnel. Servicing is required
when the apparatus has been damaged in any way, such as if the power-supply cord
or plug is damaged, liquid has been spilled inside the appliance or it has been
exposed to moisture, the appliance does not operate normally, or has been
dropped.
DO NOT OPEN THE CABINET: There are no user serviceable components inside this
product. Opening the cabinet may present a shock hazard and any modification to
the product will void your warranty.
WARNING: To reduce the risk of fire or electric shock, do not
expose this apparatus to rain or moisture.

AGD Productions, Inc.
AGD Tempo di GaN Stereo Power Amplifier Operating Manual_Rev1 Page. 8 of 20
4- Introduction:
AGD “Tempo” di GaN Reference Stereo Amplifier
Design Philosophy
The AGD “TEMPO” Stereo Amplifier, is the new addition to our state of the art Hi-
End Power Amplifiers family. The “TEMPO”is our first compact Stereo Amplifier.
The AGD TEMPO uses the same fundamental technology pioneered with the AGD
Vivace, the first Hi-End amplifier based on Gallium Nitride power MOSFET, the award
winning AGD THE AUDION and The AGD GRAN VIVACE.
The AGD “TEMPO” is rated 200+200W 4Ohm (100W+100W 8Ohm) and 400W 4ohm
in bridge mode configuration (mono-block operation).
To achieve these performances in such compact CNC machined cabinet, we have
designed a new GaN-based output power stage with a new mother board that
contains the low noise power supply and all the analog buffer stages, small enough
to enable these outstanding minimalistic footprints.
As for all AGD amps, the GaN-based power stage module utilized in the AGD TEMPO
is fully upgradable. That means when future generations of GaN devices with
improved technology will be available, AGD will offer a new GaNPower module
option to maintain the full value of the product in time. Moreover, the TEMPO can
operate also in bridge-mode delivering in this configuration twice the nominal
stereo output power, 400W on 4ohm.
Thanks to a world-class PCB design, a refined selection of top-quality audio grade
components, and the extremely efficient GaN-based power stage we achieved the
design’s goal to operate this integrated Stereo Version of at >600kHz as main PWM
frequency. The higher PWM frequency operation delivers a direct and positive
impact on the overall outstanding sonic and musical performances with sublime
mid-high range realism along with the unique tight and controlled bass register.

AGD Productions, Inc.
AGD Tempo di GaN Stereo Power Amplifier Operating Manual_Rev1 Page. 9 of 20
5- Specifications:
PARAMETERS
Nominal Output Power at 0.1% THD+N,
20Hz÷20KHz, 4Ω
200+200W
THD+N 10W/1KHz
<0.01%
Maximum Output Power at 0.01% THD+N,
1KHz, 8Ω
100+100W
Audio Bandwidth ±0.5dB
20Hz÷20KHz
Bandwidth ±3dB
5Hz÷80KHz
Input Impedance
40kohm (600ohm upon request)
Efficiency%
>94%
Bridge Mode Max output power 4Ω
400W
Power Stage Gain
23db
Dynamic Range
>120dB
Dimension
11x3.75x7.1in (280x95x180mm)
Weight
10lbs (5kg)
Input Voltage
100-240V (auto-switch)
❹

AGD Productions, Inc.
AGD Tempo di GaN Stereo Power Amplifier Operating Manual_Rev1 Page. 10 of 20
6- Unpacking
Unpacking
All AGD products shipping boxes have been specially designed to protect
their contents and special care has been taken to prevent damage under
normal shipping conditions.
When unpacking your amplifier:
•Mishandling should be evident upon inspection of the shipping
container.
•Carefully remove your new component from its packaging and
examine it closely for signs of shipping damage.
•We strongly recommend saving all original packaging to protect your
component from damage, should you wish to store it or ship it later.
CAUTION: In case of doubt DO NOT attempt to lift or move the power
amplifier case without adequate assistance. The shipping weight of the
amplifier may exceed what a single person should lift alone.