Schertler CHARLIE User manual

CHARLIE
Jazz Guitar amplifier

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.
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 (including ampli�ers)
that produce heat.
9) Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades 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 fit 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 receptacles, and the point
where they exit from the apparatus.
11) Only use attachments/accessories specified by the manufacturer.
12) Use only with the cart, stand, tripod, bracket, or table specified 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 qualified 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 normally, or has been dropped.
WARNING TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK
DO NOT EXPOSE THE APPLIANCE TO RAIN OR HUMIDITY

INTRODUCTION
Schertler's CHARLIE is an exciting new compact electric amplifier that has been specifically developed for use with jazz
guitar. The single channel, 280W amp is designed to enhance the delicate low-mid range of the instrument, which often
features more prominently in a conventional jazz line-up. When played though a standard guitar amp, those particular
frequencies on the instrument can appear “muddy” with compressed harmonics. In contrast, CHARLIE is designed to offer
maximum intelligibility in that range. Equipped with a Class A preamp, an uncompromising speaker/power amp
combination and traditional spring reverb, CHARLIE delivers a warm, clear sound that gives the jazz guitar its true voice in
any ensemble.

1.FRONT
1.1.
1.5.
1.2. 1.6.
1.1. INPUT
Unbalanced input for the connection of jacks (6,3mm or 1/4”)
1.2. IMPEDANCE
Matches the impedence from 22Kohm to 2Mohm (adjustable)
1.3. 10V
Phantom power supply with 10V for powering electret microphones and Schertler STAT, Basik and Lydia series.
1.4. GAIN
This variable gain preamplifier adjusts the sensitivity level to ensure the best possible processing of the signal through the channel.
It is important that this input level must be set and optimised in the best way to achieve the cleanest sound possible.
1.5. - 15 dB (PAD)
If the input signal from jack input is too powerful and you have overloads, use the PAD switch to have 15dB reduction.
1.6. HIGH, MID, LOW
These controls are devoted to high, mid 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.
1.7. REVERB
This rotary control sets the level of the spring reverb on the individual channel.
1.8. MASTER
This rotary control regulates the master volume.
1.9 WARM
When engaged, this low-pass filter damps higher frequencies to produce a warmer sound when using bridge-mounted pickups such as
Schertler STAT-series.
1.10 FX SEND
This rotary control sets the output level on the SEND OUT.
1.11 FX RET
This rotary control sets the input level on the stereo RETURN IN.
1.12 OUT control
This rotatory control sets the output level on the DI out
1.13 OUT connector
General output. XLR balanced type connector for connection of external systems.
1.14 DI DRY switch
If not switched the output signal is DRY (pre eq), or post-eq (DI) if switched
1.15 INSERT
This stereo jack plug enables the connection of an external device (compressor, equalizer, etc) in series to the input
1.16 MUTE
INPUT
WARM
INSERT
OUT
DRY
DI
LOW HIGH
IMPEDANCE
LOW MID HIGH
MASTER
REV
FX RETFX SEND
L R
-15dB10V
GAIN
1.4. 1.7. 1.8.
1.3. 1.9.
1.10. 1.11. 1.12.
1.13.
1.14.
1.15.
1.16

2. BACK
2.2.
2.1.
2.1. MAIN POWER CONNECTION
Connection to mains (230V AC/120V AC 50Hz/60Hz)
PLEASE ENSURE THE PROPER VOLTAGE AND USE THE ORIGINAL CONNECTION CABLE!
2.2. NET SWITCH
This switch changes the main power voltage from 230V AC to 120V AC
2.3. GROUND LIFT
This switch connects and disconnects the ground between source and amplifier. Use this switch to suppress hum caused by the power mains
2.4 POWER ON/OFF
2.4
2.3.

3. BLOCK DIAGRAM
WARM
3B EQ.
SPRING REV
VOL
IMPEDANCE
DI. OUT
FX SEND
TO AMP
XLR
JACK
PHANTOM
10V
GAIN with PAD -15dB INSERT
VU METER
DRY
DI
mute
FX RET

WARNINGS
Keep this manual for possible future needs
Pay attention not to pour liquids onto the device and do not operate in conditions of excessive humidity
Do not install the device close to sources of excessive heat, do not expose it to direct solar radiation and do not position it without
protection in a dusty environment
Be sure that the mains voltage does not exceed the value indicated on the back panel
Do not use the device if the mains cable or the plug aren’t in a perfect condition (if necessary, replace it)
If the mains cable has to be replaced, the operation must be carried out by qualified personnel. Replace the cable exclusively with one that
is an exact substitute
In order to avoid interference, do not install the device close to power transformers, TV sets, RF transmitters, electric motors or any source
of electric energy
Do not point microphones against speakers: this could generate annoying whistles (Larsen effect) that cause damage
In order to avoid unpleasant and costly inconveniences, use only original connecting cables
To completely disconnect this apparatus from the AC mains, disconnect the power supply cord plug from the AC socket
When cleaning, do not use solvents (e.g. acetone or alcohol). These could damage the external �finishing and the serigraphy
Do not attempt to service this product. In case of malfunction of any part of the system call the nearest technical assistance centre or a
specialized technical centre
For good ventilation, the dissipation vents should never be covered or obstructed by blankets, sofas or similar furniture. Be sure also to
leave sufficient clearance between the dissipation vents and any other surface
No source of flames, e.g. candles, should be placed on or near the device
The device should not be exposed to water, even in small amounts. No object containing liquids should be placed on or near the device
The device should only be connected to a mains socket outlet equipped with protection ground system
When the device is installed, be sure the mains socket and the plug of the mains cable are easily accessible
WARNING
PRECAUTIONS
Read carefully this manual and follow these
precautions before operating the device

ALL SCHERTLER® PRODUCTS ARE COVERED BY A LIMITED TWO-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 INTERNA-
TIONALLY 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.
4.1. DESCRIPTION
Box two way, bass reflex
4.2. ENCLOSURE SECTION
Construction: BIRCH Plywood
Weight: 24kg
Dimensions: 53cm x 25cm x 41.5cm
4.3. AMPLIFIED SPEAKER SECTION
Freq. resp.: 40Hz - 20kHz (-3dB)
Sensivity: 95.6dB
SPL max: 118dB
4.4. TECHNICAL SPECIFICATIONS INPUTS
Connector: JACK 6.3mm unbalanced
Sensivity: -47dB
Impedance: 22kohm to 2Mohm @1KHz
4.5. TECHNICAL SPECIFICATIONS OUTPUTS
FX SEND
Connector: JACK 6.3mm balanced
Level: 0dBu
Impedance: 100ohm
DI OUT
Connector: XLR balanced
Level: -15dBu
Impedance: 220ohm
RETURN
Connector: JACK 6.3mm balanced
Level: 0dBu
Impedance: 22Kohm
4.6. INTERNAL EFFECT (spring reverb)
Freq. resp.: 200Hz - 10KHz (-3dB)
PreDelay time:c.a. 30ms
Reverb time: c.a. 2s
4.7. COMPONENTS
Woofer: 10”
Tweeter: Dome 1”
Cross-over: Active, 24dB/octave
Amplifier: 200W + 80W
4. TECHNICAL DESCRIPTION