Jasmine Sonata EL156-SE User manual

Jasmine Sonata EL156-SE
Tube Integrated Amplifier
Owner’s Manual
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Safety Precautions _______________
To get the best performance from your Jasmine SONATA
EL156-SE Tube Integrated Amplifier, and for your own safety,
please read and follow these important safety instructions:
Never place the Jasmine SONATA EL156-SE Tube Integrated
Amplifier near heat sources such as radiators, fireplaces, stoves,
or other appliances that produce heat. Avoid placing the Jasmine
SONATA EL156-SE Tube Integrated Amplifier where it will be
subject to direct sunlight or low temperatures.
 The Tubes will be running with very high temperature, never
touch the tubes when the amplifier is running. Please keep the
tube cover fixed when you use it.
 AC extension cords are not recommended for use with this
product. If an extension cord must be used, be sure it is an
approved type and has sufficient current carrying capacity for
this product.
 Before cleaning the Jasmine SONATA EL156-SE Tube Integrated
Amplifier, always disconnect the power supply cord. Use a soft
cloth and, if necessary, dampen with clean water or mild cleaning
agent. Never apply water, or any other cleaner, directly to the
chassis.
 If you smell smoke or an abnormal smell, immediately unplug the
Jasmine SONATA EL156-SE Tube Integrated Amplifier from the
power supply and contact your Jasmine dealer.
 Never attempt to service the Jasmine SONATA EL156-SE Tube
Integrated Amplifier beyond what is described in this Owner’s
Manual. Qualified service personnel should perform all repairs.
 Unplug unit if it becomes wet.
 Do not open unit when attached to AC outlet; dangerous voltages
may be encountered.
 Replace fuse only with the exact type originally included.
 Don’t upgrade the tubes by yourself whatsoever, or the warranty
is immediately voided. Incorrect upgrading will degrade the
sound quality or burn down the amplifier. If you like to upgrade
the tubes, please contact the Jasmine dealer.

Contents _______________________
A Brief of Jasmine
The Design Philosophy of jasmine
Unpacking
The Accessory Kit
Installing Tubes
Choosing a Location for the Jasmine Amplifier
Connecting to AC Power
Connecting to the Signal Source
Connecting to the Speakers
Before Power on the Amplifier
Choosing your Signal Source
Adjusting the brightness of the tube cover
Power On & Off Sequence
Why need to upgrade or exchange the tubes ?
The Exchangeable Tube Type
Step One: Exchanging the Tubes
Step Two: Power on the Amplifier
Step Three: Adjusting Bias-Voltage of the Tubes
Safet
y
Precautions 2
Introduction 4
Installation 5
Connections 7
O
p
eration 9
Warrant
y
13
S
p
ecifications 14
How to ad
j
ust the bias-volta
g
e 10

Introduction _______________________
All of us at Jasmine would like to offer thanks and
congratulations to you for purchasing the Jasmine
SONATA EL156-SE Tube Integrated Amplifier. We
sincerely believe that your Jasmine SONATA EL156-SE
Tube Integrated Amplifier is an intelligent purchase
decision that will bring you many years of musical
pleasure and satisfaction. While every new owner is
anxious to begin listening, we encourage you to take a
few minutes to read this manual and familiarize
yourself with the full capabilities of the Jasmine
SONATA EL156-SE Tube Integrated Amplifier.
To reduce the risk of injury or damage to your Jasmine
SONATA EL156-SE Tube Integrated Amplifier, please
read the safety instructions on the first page of this
manual. In addition, please pay particular attention to
the sections of this manual where the symbol at left is
shown.
Jasmine Audio was established by a group of
professional audiophile with the pure passion for the
perfection of sound in 2001. The result of this passion is
products with marvellous and smooth dynamic sound
combined with innovative design. No detail on a
Jasmine product is left unattended, and experienced
and qualified engineers handpick all components.
Owning a Jasmine product should be seen as being part
of a very special “club”, created by enthusiasts for
enthusiasts.
Pure, Simple, Nature!
A Brief Histor
y
of Jasmine
The Desi
g
n Philoso
p
h
y
of Jasmine

Installation _______________________
This section includes information on how to unpack
and position your Jasmine SONATA EL156-SE Tube
Integrated Amplifier.
After carefully unpacking your Jasmine SONATA
EL156-SE Tube Integrated Amplifier, inspect for any
shipping damage and call your dealer immediately if
any is found. Do not plug your Jasmine SONATA
EL156-SE Tube Integrated Amplifier into any outlet if
you find shipping damage.
Please save all packing materials so the unit can be
easily and safely shipped if the need arises.
Included in the carton, you will find an accessory kit
that contains the following:
 Two EL156 tubes
 Two 6SN7 tubes
 One 5U4X1 tube
 AC power cord
 Remote Controller
Each tube is labeled, such as V1, V2, … etc. The same
label also appeared on the top side of the amp.
First of all, place the amp on a solid place, then remove
the tube cover by the screw driver. Unpacking the
tubes, and plug in the according slots.
The tubes are tested and strictly matched before
packing in the factory. To be sure you have plug the
tubes in the right place before powering on the amp.
Otherwise, will reduce the sound quality.
After all tubes are installed, Please re-fixed the tube
cover.
Un
p
ackin
g
The Accessor
y
Kit
Installin
g
Tubes

The sound quality of all high-performance digital and
analog components can be degraded by vibration.
Although the Jasmine SONATA EL156-SE Tube
Amplifier uses some of the most advanced
noise-reduction circuitry available, it too will benefit
from any efforts taken to reduce vibration. For best
performance, place the Jasmine SONATA EL156-SE
Tube Amplifier on a solid, non-resonant shelf.
Choosin
g
a Location for the Jasmine Am
p
lifier

Connections _______________________
This section provides instructions to connect the
Jasmine SONATA EL156-SE Tube Amplifier to the rest
of your music system. Below is an illustration of the
Jasmine SONATA EL156-SE Tube Amplifier rear panel,
showing all inputs and outputs.
RightSP LeftSP
Terminals AC Inlet Terminals
InputConnectors VoltageModeSwitch
Avoid allowing static shocks to be applied to the inputs
or outputs. To prevent static shocks, touch any
grounded surface, such as the chassis of a component
that is plugged into an AC socket, before connecting or
removing a cable.
Inputs and outputs can be safely connected to the
Jasmine SONATA EL156-SE Tube Amplifier when the
AC power is switched off.
Check to make sure your Jasmine SONATA EL156-SE
Tube Amplifier has been set for operation at your AC
line voltage. Attempting to use your Jasmine SONATA
EL156-SE Tube Amplifier at any voltage other than that
specified on the rear of the unit may cause damage that
is not covered by Jasmine’s warranty.
Jasmine AC Power Mode:
The 230V mode is suitable for using in 220 ~ 240V
voltage environment.
Connectin
g
to AC Power

The 115V mode is suitable for using in 110 ~ 120V
voltage environment.
Break-in and warm-up
Careful listeners will notice that the sound of the
Jasmine SONATA EL156-SE Tube Amplifier improves
steadily after the unit is powered-up. A new unit will
undergo more dramatic changes when power is applied
for the first time. Depending on the resolution of the
system and the attentiveness of the listener, you may
find that the sound continues to improve over the first
several weeks of operation. If the power is disconnected
for a period of an hour or more, the unit will undergo
similar but less dramatic break-in.
You can directly connect your CD player, Tuner to the
Jasmine SONATA EL156-SE Tube Amplifier. But
Turntable, You have to connect your turntable to the
Jasmine SONATA EL156-SE Tube Amplifier by a
phono stage , except your turntable embedded phono
stage inside.
The tube amplifier is sensitive to the output impedance.
The Jasmine SONATA EL156-SE Tube Amplifier supply
two sets of speaker terminals for using, 4 ohm and 8
ohm. Please refer to the impedance parameters of your
speakers before connecting and choose the right
terminals for connecting your speaker cable. If the
impendence of your speaker is 6 ohm, please choosing 8
ohm terminals for connecting.
Connectin
g
to the Si
g
nal Sources
Connectin
g
to the S
p
eakers

Operation _______________________
This section describes how to operate the Jasmine
SONATA EL156-SE Tube Amplifier.
To make sure the volume switch is turned to the
minimum position before you turn on the power
switch !
Please power on your signal source devices before turn
on your Jasmine SONATA EL156-SE Tube Amplifier.
Through the Selector switch on the front panel, you can
select the signal source that you like, such as CD Player,
Tuner, or turntable, … etc.
Through the Dimmer switch on the rear panel, you can
adjust the brightness of the top acrylic cover.
The correct power-on and power-off sequence will
lengthen the life of your HI-FI system.
Power On Sequence
 Signal Sources --> Integrated Amplifier.
Power Off Sequence
 Integrated Amplifier--> Signal Sources
Before Power On the Am
p
lifier
Choosin
g
y
our si
g
nal source
Powerin
g
On & Off Se
q
uence
Ad
j
ustin
g
the bri
g
htness of the tube cover

How to adjust Bias-Voltage_____________
After you exchanged or upgraded the power tubes, you
have to adjust the bias-voltage again.
The recommended Bias-Voltage is 0.85V ! Never over
0.9V, will cause the power tube burned down.
The lifetime of vacuum tube depend on the quality and
used hours each day. Usually, one set of tubes can be
used for 3 ~ 5 years. After you used Jasmine SONATA
EL156-SE for several years and find the sound quality
degraded markedly. It’s time for exchanging the tubes.
Some times, Audiophile like to change the different
brand of tube to obtain different sound.
Notes: The EL156, Which can't be directly replaced by
Telefunken's EL156 !
6SN7 = 5692
5U4X1 = 5Z3P=U52
The tubes are must pairs matched at least. The best is
four tubes matched each other.
1. Power off your Jasmine SONATA EL156-SE Tube
Integrated Amplifier
2. Waiting for the tubes cooling down to the safety
temperature, pull off the tubes
3. Plug in the new tubes, V1 and V2 is one pair, V3 and
V4 is another pair. For the preamp tubes, V5 and V6
is one pair, V7 and V8 is another pair.
4. If you only exchanged preamp tubes (V5 ~ V8), the
exchanging operation is finished. No necessary to
execute following steps!
Wh
y
need to u
pg
rade or exchan
g
e the tubes ?
Ste
p
One: Exchan
g
in
g
the Tubes
The Exchan
g
eable Tube T
yp
e

1. Before power on the Jasmine SONATA EL156-SE, be
sure the speaker cables are connected!
2. Carefully turn on the power switch, waiting for 5
minutes till the tubes warmed up.
3. Using a multi-meter, setting to direct voltage 20V
model
4. Finding out the adjusting switches
Here is it !
Ste
p
Two: Power on the am
p
lifier

1. Connecting the negative pole of the multi-meter to
the zero ohm speaker terminal, and find out the test
point behind each EL156 tube.
2. Using a small screw-driver to slowly adjust the
adjust switcher, till the test voltage reach the 0.85V
Repeating the steps above for each power tube. Please
keep in mind for that the bias voltage of each tube is
best at same level.
Congratulation! You just updated your Jasmine Piano
SONATA EL156-SE Tube Amplifier!
Ste
p
Three: Ad
j
ustin
g
Bias-Volta
g
e of the Tubes

Warranty _______________________
Jasmine warrants that Jasmine products shall be free
from defects in materials and workmanship for:
One year for parts and labor, except tubes
The warranty period begins at the date of retail sale by
an authorized Jasmine dealer and is subject to the
following requirements and understandings:
1. This is a non-transferable warranty applicable to the
original purchaser exclusively.
2. The product must not have been modified in any
manner whatsoever, or the warranty is immediately
voided.
3. The product must not have been stored in humid
environment; nor subjected to weather, water, or
salt spray.
4. During the warranty period Jasmine will repair the
product to working order, or, at Jasmine’s option,
replace the defective equipment with a similar
available product, at no cost to the owner for the
labor, materials, and return shipping from Jasmine.
5. Jasmine shall not, under any circumstances, be
liable for any incidental or consequential damages
arising from the loss of property or other damage or
losses due to the failure of a Jasmine product.
Jasmine will not pay for loss of use or
inconvenience caused by the failure of a Jasmine
product. Jasmine will not pay for damage caused to
other audio components because of the failure of a
Jasmine product within the limits allowed by State
Law.
6. All repairs performed after the warranty period has
expired will be billed to the owner and will carry a
90 day warranty on parts and labor.
7. The customer is responsible for shipping the unit to
Jasmine.
8. Jasmine product is only warranted in the country of
original sale.

Specifications _______________________
Output power: 25W x 2 ( Single-Ended, Class A )
Tubes used: 2 x EL156 , 2 x 6SN7, 1 x 5U4X1
Input Impedance: 100K ohm
Output Impedance: 4 , 8 ohm
Input ports: 3 sets of RCA
S/N: > 89dB
Freq. Response: 6Hz ~ 45KHz ( +/-1.5dB )
THD: < 1%
Voltage Model: 110 ~120V / 50~60Hz or 220 ~ 240V/
50~60Hz
Net Weight: 22Kg
Size: 370(W) x 470(D) x 210(H) mm
Power Consumption: 150W (static status)
@ 2006 Jasmine audio
Block B1-5C, Digital Tech. Park,
Southern Keji Rd.,
Shenzhen, GD,
China 518057
Subject to change without notice.