fezz Olympia Evo Power Amplifier User Manual
- September 18, 2024
- fezz
Table of Contents
fezz Olympia Evo Power Amplifier
Product Information
Specifications
- Model: Olympia Evo
- Type: Vacuum tube mono power amplifier
- Tubes: 4x KT88 + 1x 12AX7 + 1x 12AU7
- Inputs: 1x RCA + 1x XLR
- Suitable speaker impedance: 4Ω / 8Ω
- Nominal output power: 150W
- Total harmonic distortion: [Not provided]
Product Usage Instructions
-
Setup
Place the Olympia Power Amplifier on a flat, stable surface with ample ventilation to prevent overheating. -
Connections
Connect your audio source to the desired input (RCA or XLR) of the amplifier using appropriate cables. -
Power On
Ensure the amplifier is turned off before plugging it into a power source. Once connected, turn on the amplifier using the designated power switch. -
Adjustments
Use the volume control on your audio source to adjust the output level. Fine- tune the sound using any tone controls provided on your amplifier or connected devices. -
Shutdown
When finished, turn off the amplifier and disconnect it from the power source. Unplug any audio cables to prevent damage during storage.
Frequently Asked Questions (FAQ)
-
Q: Can I use speakers with impedance other than 4Ω or 8Ω?
A: It is recommended to use speakers with impedance matching the amplifier’s specifications for optimal performance and to prevent damage. -
Q: How do I know if the tubes need replacement?
A: If you notice a significant decrease in sound quality or distorted output, it may be time to replace the tubes. Consult a professional if needed.
USER`S MANUAL
OLYMPIA
POWER AMPLIFIER
WWW.FEZZAUDIO.COM
TECHNICAL DATA
- Model: Olympia Evo
- Type: vacuum tube mono power amplifier
- Tubes: 4x KT88 + 1x 12AX7 + 1x 12AU7
- Inputs: 1x RCA + 1x XLR
- Suitable speaker impedance: 4 Ω / 8 Ω
- Nominal output power: 150 W
- Total harmonic distortion: <0,1% (below 100 W); <1% (at full power)
- Power bandwidth: 16 Hz – 80 kHz
- Damping factor: >30
- Input impedance: 100 kΩ
- Sensitivity: 0,7 V
- Power consumption: 200 W (at idle); 400 W (at full power)
- Weight: 16 kg
- Dimensions: 355x380x195 mm
SAFETY TIPS
In order to obtain the highest possible sound reproduction quality and for the sake of your own safety, please kindly refer to the following.
- Never turn on the amplifier without installed tubes and without hooked-up speakers.
- Never place the Fezz Olimpia power amplifier near heat sources, such as radiators, heaters or direct sunlight. Ensure adequate ventilation and airflow
- We also warn against exposure of the amplifier to conditions such as very low temperatures and/or high humidity.
- During normal operation, the vacuum tubes radiate significant amounts of heat – there is a risk of burns.
- The amplifier should be plugged directly into a wall socket. If you must use an extension cord, please make sure that it has load parameters sufficient to ensure proper handling of current delivery to the device.
- – When cleaning, always disconnect the Olympia amplifier from the power source. Use a dry, soft cloth. Do not use water or cleaning agents.
- If your amplifier starts to misbehave or to work incorrectly, if it’s temperature gets too high or you start feeling smoke – immediately disconnect the device from the mains.
- Due to the risk of exposure to high voltages – please do not open the lid of the amplifier.
- ATTENTION : This warning remains in force also in a situation where the device is already disconnected from the wall outlet.
- Always replace fuses in accordance with the original, intended specification.
- Do not make repairs on your own, or adjustments beyond those as described in this manual. Execution of any unauthorized repairs or modifications of the device result in a loss of warranty.
INTRODUCTION
Olympia, the first Fezz fully balanced mono power amplifier, equipped with especially designed, unique microprocessor bias control system, allowing to achieve over 150W per channel with 4 x KT88 tubes operating in parallel push- pull configuration. This not only simplifies operation, but also enhances reliability and consistency, allowing you to fully focus on enjoying the music. Olympia delivers power and clarity, ensuring that every note and nuance is reproduced with astonishing fidelity. Whether you’re seeking breathtaking dynamics, lush tonality, or simply an engaging listening experience, Olympia mono power amplifier delivers on all levels with it’s exceptional sound quality and performance.
INSTALLATION
UNPACKING
Please kindly check if the packaging of the amplifier has not been damaged
during transit. If you find any damages, please immediately contact your
dealer. Remove the amplifier and accessories from the packaging. Make sure
that the content is not damaged.
Do not connect the device to the power supply if it has visible signs of damage.
PACKAGE CONTENT
The package should contain :
- Fezz Olympia vacuum tube power amplifier – 2 pcs.
- vacuum tube of type KT88 – 4 pcs. (per-unit)
- vacuum tube of type 12AX7 – 1 pcs. (per-unit)
- vacuum tube of type 12AU7 – 1 pcs. (per-unit)
- power cord
- user’s manual
- cotton gloves
- optional: vacuum tube protective cage
If any of the above items are missing in your package, contact your dealer immediately.
VACUUM TUBES INSTALLATION
- Place the amplifier on a stable surface. Carefully remove the vacuum tubes from their packaging and install them in the appropriate sockets, as show below, and adhering to the numbering scheme as identified on the packaging.
- The pins in the base of each of the vacuum tubes are “coded”, and this has the result that the insertion of the vacuum tube into the socket is possible only in one correct and appropriate orientation. If, whilst inserting the vacuum tube you will sense resistance, and you can not push the tube into the socket, please check the orientation of its pins, rotate the tube to the correct position and try again.
WHERE TO PLACE YOUR POWER AMPLIFI ER
Due to the presence of high temperatures during normal operation of the vacuum
tubes, the location that you pick to place your amplifier should ensure ample
ventilation, a free flow of air. Please maintain at least 10 cm clearance
between the housing of the amplifier, together with the vacuum tubes, and
other devices or elements of the interior.
The sound quality may be degraded as a result of vibrations. Therefore we
recommended to place the power amplifier on a flat and stable surface.
Never place the amplifier near the source of heat.
DESCR IPTION OF THE POWER AMPLIFIER
- Power tubes auto fuses led indicators
- KT88 power tubes sockets
- 12AX7 driver tube socket
- 12AU7 driver tube socket
- Output transformers housing
- Speaker terminals
INTERCONNECTIONS
- IEC power supply socket
- Main power switch
- Main fuse compartment
- Voltage selector
- Signal ground on/off switch
- Speaker terminals
- RCA signal input
- XLR signal input
- RCA/XLR selector switch
The figure above shows the rear panel view of the power amplifier, together with a description of the inputs and outputs allowing for connection of the other elements of your audio system.
To avoid electrostatic shock to the components of the power amplifier, please touch a grounded conductive surface before making any connections. Any and all connections must be made whilst the device is disconnected from the mains power supply. Before making any such connections, make sure that the amplifier is switched off.
Follow the instructions below to connect your sound system correctly.
STEP 1 SPEAKERS CONNECTIONS
Check the impedance of the speakers set that you own. Connect the speaker
cable to the appropriate terminals on the rear panel of the amplifier.
Depending on the impedance of the speakers that you own, connect it to the
terminal marked either 4 Ω or 8 Ω. If your speaker impedance is 6 Ω – connect
the speaker wire to the terminal 8 Ω.
STEP 2 AUDIO SIGNAL SOURCES CONNECTIONS
Connect the preamplifier output to the signal source in the Olympia power
amplifier input (IN) RCA or XLR. Select desired input using input selector
switch at the back of the power amplifier.
In order to achieve the highest sound quality, use only high-quality cables
and pay attention to the proper connection.
STEP 3 POWER CORD CONNECTION
Make sure that the unit is switched off. Connect the power cord to the IEC
socket on the rear panel of the amplifier.
The power amplifier is designed to operate at rated switchable voltage of ~127
V or ~230 V 50-60Hz. Please check parameters of your mains network, if needed
switch to right voltage using switch at the back Please ensure that you have
installed suitable fuse for desired voltage. Connecting the device to a mains
network with incorrect parameters can lead to damage that is not covered by
manufacturers warranty.
FIRST POWER-UP AND GETTING
Make sure that all of your wiring is connected in accordance with the information as provided above on page 5 of this manual. Turn on the mains power of the source and preamplifier, turn the volume down to minimum, then turn on the Olympia power amplifier – the vacuum tubes shall begin to glow. Microprocessor bias control system needs about 30 seconds to self adjust. It has to be done without signal. Make sure that the sound source is turned on, playing, and then gradually increase the volume level in your preamplifier.
BURING – IN PROCESS
Any tube amplifier/power amplifier requires an initial pre-heating (or „burn-
in”) period, in order so that it achieves its full sonic potential. This is
due to the presence of residual polarization of dielectric elements and due to
a necessary stabilization of working parameters of the vacuum tubes. The
stabilization of the electrical parameters of the system occurs in a natural
process whilst playing music through your audio system.
A preliminary degree of pre-heating of the amplifier is reached after about 10
hours of music playback.
The full sonic capabilities shall stabilize and unfold within a time-span
ranging from 40 to 60 hours of music reproduction at a moderate volume levels.
VACUUM TUBESR EPLACEMENT
Your power amplifier is equipped with automatic bias module. It’s necessary to
use vacuum tubes that have previously been pre-selected and paired up in quads
or pairs.
- Disconnect the amplifier from the mains socket, the power supply network.
- Remove the currently installed tubes from their respective sockets. Plug in the new replacement vacuum tubes in these sockets.
POWER TUBES FUSES
Every power tube has its own safety auto fuse. When power tube will fail,
safety fuse will switch on (red light signalization) and prevents any further
damage of the amplifier. Faulty tube is singalised by red light. At first,
please reset the auto fuse by turning off the amplifier for approximately 2
minutes. After this time, turn the amplifier ON. If autofuse will goes red
again please replace faulty power tube with new one and reset once again the
auto fuse by turning off the amplifier for approximately 2 minutes. After this
time, turn the amplifier ON.
OPTIONAL EQUIPMENT
OPTIONAL EQUIPMENT
PREMI UM TUBE S SE T
TROUBLESHOOTING GUIDE
If your amplifier does not work as it is supposed to, it is fairly easy to diagnose and remedy some of the common malfunctions, by following procedures as outlined in this following.
| THE PROBLEM | PROBABLE REASON | SOLUTION |
|---|
After turning the power switch to the ON position, the amplifier does not
switch on.| A blown fuse| Please exchange to faulty fuse to a new one (3,15A
T), within the fuse holder as depicted with index 2 on page 5 of this user’s
manual.
An improper connection of the mains cable| Please check if the plugs of the
mains cable are properly inserted into the electrical mains socket and to the
socket as depicted with index 3 on page 5 of this user’s manual.
The sound produced by the amplifier is distorted. A hum or pops have appeared
and are coming from one of the channels.| An improper placement of the vacuum
tubes in the sockets| Switch off the amplifier. Wait until the vacuum tubes
cool down. Check for proper placement of vacuum tubes in their sockets. If
necessary – correct their orientation.
One of the driver tubes (12AX7 or 12AU7) has lost its nominal working
parameters| Switch off the amplifier. Wait until the vacuum tubes cool down.
Exchange the positions of the driver tubes between channels. Turn on the
amplifier. If the disturbing sounds have moved to the other channel, inform
Your local Fezz dealer about tube which need to be replaced.
One of the Power tubes (KT88) has lost its nominal working parameters| Switch
off the amplifier. Wait until the vacuum tubes cool down. Exchange the
positions of the power tubes between channels. Turn on the amplifier. If the
disturbing sounds have moved to the other channel, inform Your local Fezz
Audio dealer about tube which need to be replaced.
| Auto-bias need to set| Turn the volume down to minimum, wait 30 seconds,
after this time gradually increase the volume level in your preamplifier.
If you have verified the aforementioned situations, and your problem still persists, please contact your local Fezz Audio dealer.
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