Schertler Giulia Y User manual

GIULIA Y
combo amplier
for acoustic instruments

IMPORTANT SAFETY INSTRUCTIONS
THE LIGHTNING FLASH WITH ARROWHEAD SYMBOL, WITHIN AN EQUILATERAL TRIANGLE, IS INTENDED TO ALERT THE USER TO THE PRESENCE OF
UNINSULATED “DANGEROUS VOLTAGE” WITHIN THE PRODUCT ENCLOSURE THAT MAY BE OF A SUFFICIENT MAGNITUDE TO CONSITUTE A RISK OF
ELECTRIC SHOCK TO PERSONS.
THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE, IS INTENDED TO ALERT THE USER TO THE PRESENCE OF IMPORTANT OPERATING AND
MAINTENANCE INSTRUCTIONS IN THE LITERATURE ACCOMPANYING THE PRODUCT.
WARNING TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK
DO NOT EXPOSE THE APPLIANCE TO RAIN OR HUMIDITY
1) Read these instructions.
2) Keep these instructions.
3) Heed all warnings.
4) Follow all instructions.
5) Do not use this apparatus near water.
6) Clean only with dry cloth.
7) Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
8) Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (inclu-
ding ampliers) that produce heat.
9) Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two bla-
des with one wider than the other. A grounding type plug has two blades and a third grounding prong. The
wide blade or the third prong are provided for your safety. If the provided plug does not t into your outlet,
consult an electrician for replacement of the obsolete outlet.
10) Protect the power cord from being walked on or pinched particularly at plugs, convenience recepta-
cles, and the point where they exit from the apparatus.
11) Only use attachments/accessories specied by the manufacturer.
12) Use only with the cart, stand, tripod, bracket, or table specied by the manufacturer, or sold with the
apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury
from tip-over.
13) Unplug this apparatus during lightning storms or when unused for long periods of time.
14) Refer all servicing to qualied service personnel. Servicing is required when the apparatus has been
damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects
have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate nor-
mally, or has been dropped.

WARNINGS
PRECAUTIONS
WARNINGS Please read this manual carefully before using your
GIULIA Y amplier and observe all safety precautions
Keep this manual for future reference
Do not pour any liquids onto this device, or operate it in excessively humid conditions.
Do not use or install this device near sources of excessive heat. Do not expose it to direct sunlight, or position it in a
dusty environment without any form of protection.
Ensure that the mains voltage does not exceed the value indicated on the back panel.
Do not use this device if either the mains cable or its plug is not in perfect condition. (Replace if necessary.)
If the mains cable needs replacing, it must be done by an appropriately qualied person. The replacement cable must
be exactly the same as the original.
To avoid interference, do not use this device near power transformers, TVs, RF transmitters, electric motors or any
other source of electrical energy.
Do not point a microphone towards any speakers as this could result in feedback (Larsen effect) and ultimate damage
to your device.
Only use the original connection cables – if supplied with the device. Otherwise this could prove both costly and
inconvenient.
To completely disconnect this device from the AC mains, remove the power cable plug from the mains socket.
When cleaning, do not use solvents (e.g acetone or alcohol). These could damage the external nish and the serigraphy.
Do not attempt to service this device. If any malfunction is detected, call the nearest technical assistance centre, or a
specialist technical centre.
To maintain good ventilation, never cover or obstruct the heat sink with blankets, sofas or any other furnishings.
Always leave sufcient clearance between the heat sink and any other surface.
No ammable sources, i.e. candles, should be placed on or near the device.
This device should never be exposed to water, even in small amounts. No object containing liquids should be placed
on or near the device.
This device should only be connected to a mains socket outlet that has a protective ground.
When using or installing this device, always make sure that the mains socket and the mains cable plug are easily
accessible.

INTRODUCTION
GIULIA Y is the latest addition to Schertler’s range of high-quality, compact acoustic ampliers.
While retaining many of the features of its smaller sibling GIULIA, this new 2-channel model
has enhanced circuitry and a new “look” that heralds the next generation of Schertler’s amplier
technology.
Perfect for small venues, home studios or for practice, GIULIA Y offers 50W of bi-amplied
power. Both input channels can accommodate XLR and 1/4” Jack connectors, making the amp
suitable for use with a wide range of microphones including Schertler’s DYN and STAT series, or
the BASIK pickup. Phantom power (24V and 10V) is supplied. The inputs can also be used for
guitars or other high level line sources, with the amplier’s intelligent electronics automatically
adapting to suit. The Master channel has 3-band EQ and Warm low-pass lter to produce a
warmer sound when used with bridge-mounted pickups. Separate Line and DI outputs enable
connection to a mixer, subwoofer or other external device.
GIULIA Y also has a high-quality digital reverb (controlled via potentiometer) and an Insert socket,
enabling the connection of an external dynamics processor or a volume pedal.
PRACTICAL ADVICE
When you are using an amplied speaker, one of the most important recommendations is to
avoid at all costs a distorted input signal.
In other words, when you are controlling the sound in your amplier’s mixer section (or any other
preamplier), you must avoid reaching saturation level.
While playing your instrment or singing in the microphone, start turning up the Gain knob until the
Overload LED begins to blink. At this point, turn the Gain knob back down slightly. This correctly
sets the preamp level depending on your actual input signal. Now set the Master volume between
30% and 60%. With the Gain and Master levels appropriately set, you can now set the channel
volume as you please.
In the case of amplied speakers, the arrival of a distorted signal (square wave) may damage the
internal amplier beyond repair, which may in turn damage the loudspeakers.
Correct use of speakers guarantees their long life.

GAIN
LINE OUT
P24 ININ GAIN
10V LOW MID HIGH WARM REV MASTER
INSERT OUT -15dB
1. FRONT PANEL - INSTRUMENT IN
1.1. MIC INPUT
This input is electronically balanced for XLR type connections. The new MIC/DYN channel is now
conceived for any kind of signal sources. You can plug in vocal microphones. The electronics will adapt to
any situation. No special action is required.
1.2. P24
The amplier’s XLR input provides 24V phantom power for use with a condenser microphone. Most
condenser (and dynamic) microphones, along with some preamps, can be safely phantom powered. In
certain cases however, phantom power can cause damage to a device.
This tends to occur with unbalanced microphones, preamps or stompboxes that have been modied for
balanced XLR use.
If in doubt, please contact us to check the compatibility of your audio device before using the amplier
1.3. 10V
Phantom power supplies the Jack connector with 10V for powering electret microphones.
1.4. STAT IN
Unbalanced input for the connection of jacks (6.3mm or 1/4”), with optimal sensitivity for high level sigals,
The electronics will adapt to any situation. No special action is required.
1.5. GAIN MIC
This variable gain preamplier adjusts the sensitivity level to ensure the best possible processing of the
MIC signal through the channel.
It is important that this input level should be set and optimised in the best way to achieve the cleanest
sound possible.
1.6. GAIN INSTRUMENT
This variable gain preamplier adjusts the sensitivity level to ensure the best possible processing of the
STAT signal through the channel.
It is important that this input level should be set and optimised in the best way to achieve the cleanest
sound possible.
1.7. HIGH, MID, LOW
These controls are devoted to high, medium and low frequency regulation. Offering cut and boost of ±15dB,
they allow a wide range of tonal variations to be explored. When the controls are positioned centrally there
is no cut or boost of the selected frequency band. The adjustment is on both channels
1.8. WARM
When engaged, this low-pass lter damps higher frequencies to produce a warmer sound when using
bridge-mounted pickups such as the SCHERTLER STAT-Series transducers for violin, cello and double
bass.
1.9. REVERB
This rotary control sets the level of the digital reverb on both channels.
1.10. MASTER
This rotary control regulates the Master on both channels.
1.11. LINE-OUT
This unbalanced jack plug enables the connection of external systems. The output volume depends on the
regulation of the MASTER-VOL.
1.12. INSERT
This stereo jack plug enables the connnection of an external device (compressor, equalizer, etc.) in series
to all the outputs.
1.13. DI-OUT
General output. XLR balanced type connector for connections of external systems. The output volume
does not depend on the regulation of the MASTER-VOL but is effected by changes in the channel volume.
1.1
1.31.2 1.4 1.5
1.6
1.7 1.8 1.9 1.10
1.11
1.12
1.13

POWER CONSUMPTION 50W
GAIN
LINE OUT
P24 ININ GAIN
10V LOW MID HIGH WARM REV MASTER
INSERT OUT -15dB
SERIAL NR.
TO REDUCE RISK OF FIRE, DO NOT EXPOSE THIS EQUIPMENT TO RAIN
OR MOISTURE. FOR CONTINUED PROTECTION AGAINST RISK OF
FIRE, REPLACE ONLY WITH THE SAME TYPE AND RATING OF FUSE.
DESIGNED IN
SWITZERLAND
MADE IN ITALY
RISK OF ELECTRIC SHOCK DO NOT OPEN!
GND LIFT
50 WATT
ACOUSTIC
AMPLIFIER www.schertler.com
2. REAR PANEL
2.1
2.3
2.2
2.1. POWER ON/OFF
System ON/OFF switch.
2.2. GROUND LIFT
This switch connects and disconnects the ground
2.3 MAIN POWER CONNECTION
Connection to mains Fuse carrier
220 - 230 V~ 50 Hz / 60 Hz T 630 mA L 250 V
240 V~ 50 Hz T 630 mA L 250 V
120 V ~ 60 Hz T 1 A L 250 V
100 V~ 50 Hz / 60 Hz T 1 A L 250 V
PLEASE ENSURE THE PROPER VOLTAGE AND USE THE ORIGINAL CONNECTION CABLE
SIGNAL FLOW
WARM
3B EQ.
REV
VOL
GAIN
DI. OUT
LINE OUT
TO AMP
PHANTOM
24V
XLR
JACK
PHANTOM
10V
GAIN INSERT

TECHNICAL SPECS
Frequency response ...................................
Sensitivity (1W-1m) .....................................
SPL max .....................................................
Woofer ........................................................
Horn ............................................................
Crossover ...................................................
Box ..............................................................
Construction ................................................
System – Format .........................................
Max Power out ............................................
Weight .........................................................
Dimensions .................................................
INPUTS
MIC IN
Connector ...................................................
Sensitivity ....................................................
Impedance ..................................................
LINE IN
Connector ...................................................
Sensitivity ....................................................
Impedance ..................................................
OUTPUTS
LINE OUT
Connector ....................................................
Level ............................................................
Impedance ..................................................
D.I. OUT
Connector ...................................................
Level ...........................................................
Impedance ..................................................
INSERT
Connector ...................................................
INTERNAL EFFECT (digital reverb)
Frequency response ...................................
Delay time ...................................................
Reverb time ................................................
60 Hz-20 kHz
88.5 dB
104 dB
5”
Dome 1”
Active
24 dB / octave
Bass reex
Birch laminated
2-way, Bi-amp
30 W + 20 W
6.8 Kg
270 x 180 x 280 mm.
XLR balanced
-52 dB
4.7 kohm
Jack 6.3 mm. unbalanced
-47 dB
820 kohm
Jack 6.3 mm. unbalanced
0 dBu
200 ohm
XLR balanced
-15 dBu
200 ohm
Jack 6.3 mm.
200Hz - 10kHz
c.a. 30 ms.
c.a. 2.8 s.

ALL SCHERTLER® PRODUCTS ARE COVERED BY A LIMITED THREE-YEAR WARRANTY (FROM
THE DATE OF PURCHASE) AGAINST MANUFACTURES DEFECTS. DETAILS CAN BE OBTAINED
FROM YOUR LOCAL DEALER/REPRESENTATIVE. SCHERTLER SA STRONGLY BELIEVES IN
“COMMON SENSE” AND THUS, MISUSE OF OUR PRODUCTS ARE NOT COVERED UNDER
RIGHTS OBTAINED THROUGH OUR WARRANTY POLICY OR THAT OF INTERNATIONALLY
RECOGNIZED TERMS AND CONDITIONS.
SCHERTLER SA IS CONSTANTLY AIMING TO IMPROVE ITS RANGE OF PRODUCTS THEREFORE,
SCHERTLER SA RESERVES THE RIGHT TO AMEND PRODUCT
SPECIFICATIONS WITHOUT NOTICE.
THE SCHERTLER® NAME/LOGO ARE REGISTERED TRADE-NAMES/ TRADEMARKS OF
SCHERTLER SA, SWITZERLAND.
All SCHERTLER® PRODUCTS ARE OF PROPRIETARY TECHNOLOGY AND COVERED BY ONE
OF MORE WORLDWIDE PATENTS.