Steren AMP-020/GTR User manual

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IMPORTANT
Before using your new 20W Guitar amplier, please read the
following recommendations.
Do not use electrical appliances in environments too wet or too high
temperatures.
Do not spill any liquid in the amplier to prevent electric shock.
Do not be exposed to extremely high levels of sound as this may
cause a permanent loss of hearing (and especially if you use
headphones). Adjust the amplier into an appropriate sound level t
to avoid hearing damage and out of respect for its neighbors.
Unplug your guitar amplier during storms or when not be used for an
extended period of time.
Always use a soft and dry cloth in order to clean this device
Do not attempt to open this device as this could cause malfunctions
or the voiding of the warranty
If the power cord is damaged, the manufacturer or a service agent
must replace it. The qualied personnel must do this in order to avoid
any risks or the voiding of the product warranty.
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FEATURES
Clear sound.
400WPMPO.
DSP.
Overload protection.
Carrying strap.
The amp is manufactured with high quality components, offering a
wide range frequency response. With this feature, the amplier is
perfect for soft or strong music.
CONTROL
FRONT PANEL
1.- INPUT
Guitar input jack. We recommend always using high quality cables
to avoid interference and background noises.
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2.- DIST GAIN
This button will monitor the overdrive distortion intensity. The more
you increase the gain, the sound of the guitar will be more distorted.
3.- DIST LEVEL
Output distortion level control.
4.- DIST SELECT
Overdrive switch that activates the built-in amplier, increasing the
signal distortion.
5.- NORMAL LEVEL
Volume control (Clean).
6.- TREBLE
High frequencies output signal control. It will raise the high frequencies
the sound of the guitar is more acute and thin.
7.- MIDDLE
Mid-frequency output signal control. It will raise the mid-frequencies,
the sound of the guitar is deeper.
8.- BASS
Low frequency output signal control. It will raise the bass frequencies
the sound of the guitar will be more dense and warm

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9.- REVERB
Use it to increase or decrease the reverb effect, which can be applied to
the original dry signal. By increasing the reverberation (REVERB) effect
guitar sounds looks like if you were playing in a large hall. There is no
need to raise the level of reverb too much to produce sound impressive. The
reverberation does not stop as long as active this effect.
It controls the amount of reverberation effect.
10.- Indication of low tone.
Turns on when the pitch is below
of the correct level
11.- Display
12.- Instrument selector
It allows to select a device
to calibrate it. You can select
between Guitar or Bass.
13.- On/off switch
14.- Calibrate pitch LED indicator
15.- High tone light indicator.
Turns on when the pitch is over the correct level.
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REAR PANEL
16.- Power cord.
17.- Selector input voltage.
18.- Fuse
In the event of having to change the fuse, rst unplug the power cord
from the electrical outlet. Then, remove the cover and replace the fuse
with other similar characteristics.
19.- 1/4 “ DSP input connector
Foot channel selector, it allows you to have several effects.
20.- Headphone input jack.
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HOW TO USE THE TUNE-UP
1 .- Select the instrument to calibrate, press the button selector
(Control 1)
2 .- The instrument will be displayed (Control 2)
3 .- Tap a tone, if the LED indicator (Control 3) ashes, indicates that
the pitch is under the right tone, adjust the pitch.
If the LED lights (Control 4) indicatesthat the pitch is above the right
tone, adjust the pitch.
4 .- When the tone is correct, the indicator LED turns in green (Control 6) and
will the number of the tone will be displayed (Control 5)
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5
6
A=LA
6 E B=SI
5 A C=DO
4 D D=RE
3 G E=MI
2 B F=FA
1 E G=SOL
NUMBER OF
STRING PITCH

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INSTALLATION
1 .- Put the controls level to the minimum.
2 .- Connect your electric guitar into the amplier.
3 .- Insert the power cord to an electrical outlet.
4 .- Move the switch to “ON” position to turn the amplier on.
5 .- Make the necessary adjustments.
SPECIFICATIONS
Input: 110/220 V~ 50/60Hz 40w
Output: 20Wrms
Distortion factor: 0,3%
SNR: ≥ 60dB
Frequency range: 45Hz-12kHz
Output terminals: 4ohms
Product design and specications are subject to change, without
notice.

WARRANTY
This Steren product is warranted under normal usage against defects in workmanship and
materials to the original purchaser for one year from the date of purchase.
CONDITIONS
1.- This warranty card with all the required information, invoice or purchase ticket, product
box or package, and product, must be presented when warranty service is required.
2.- If the product stills on the warranty time, the company will repair it free of charge.
3.- The repairing time will not exceed 30 natural days, from the day the claim was received.
4.- Steren sell parts, components, consumables and accessories to customer, as well as
warranty service, at any of the addresses mentioned later.
THIS WARRANTY IS VOID IN THE NEXT CASES:
If the product has been damaged by an accident, acts of God, mishandling, leaky batteries,
failure to follow enclosed instructions, improper repair by unauthorized personnel, improper
safe keeping, among others.
a) The consumer can also claim the warranty service in the purchase establishment.
b) If you lose the warranty card, we can reissue it, if you show the invoice or purchase ticket.
Product: 20W guitar amplier
Part number: AMP-020/GTR
Brand: Steren

RETAILER INFORMATION
Name of the retailer
Address
Product
Brand
Part number
Serial number
Date of delivery
In case your product fails or have questions, please contact your nearest dealer. If
you are in Mexico, please give a call to our Call Center.
Call Center
01 800 500 9000