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Stagg 20 AA R - User Manual

Stagg 20 AA R
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FRONT PANEL:
1. (Mic) INPUT: This is a balanced XLR input for connecting a dynamic microphone. This can be a vocal
mic to sing into while you play, or alternatively an instrument mic to amplify an all-acoustic instrument that
does not feature an onboard preamp system. You may also use this input to connet an electro-acoustic
instrument with a balanced output signal.
2. (Mic) LEVEL: This control determines the output volume of the sound picked up by a microphone, if
one is used.
3. (Guitar) INPUT: This is a 1/4” 6.3 mm) input jack socket for plugging in an electro-acoustic
instrument. We recommend that you always use a high-quality shielded guitar cable to prevent any
background noise interference or unwanted feedback.
4. (Guitar) LEVEL: This control determines the output volume of any instrument plugged into the
amplier via the guitar input jack.
5. PASSIVE/ACTIVE SWITCH: This switch enables the user to choose between passive and active modes
according to whether the instrument connected is passive (without preamp) or active (with preamp).
6. TREBLE: This control determines the level of high frequencies in the output signal. Adding TREBLE will
make your guitar sound brighter and sharper.
7. MID: This control determines the level of middle frequencies in the output signal. Adding MID will make
your guitar sound rounder and fuller.
8. PARAMETRIC MID: This control allows you to ne tune your guitar sound by cutting or boosting the
mid frequency parameters of the output signal. At a low level, the PARAMETRIC MID control will emphasize
the lower mids, while increasing the level will bring out the upper mids. The PARAMETRIC MID control can
help you explore a wide variety of different guitar tones.
9. BASS: This control determines the level of low frequencies in the output signal. Adding BASS will make
your guitar sound warmer and heavier.
10. SPRING REVERB: This is the reverb intensity control. This controls the amount of reverb that is
added back to the original dry signal. Adding REVERB will produce a reverberation effect in your instrument
sound, as though you were playing in a large hall. A little can go a long way in adding that special depth to
your sound. If engaged, the reverb is always active in both microphone and guitar channels.
11. CD/MP3 INPUT: This is a line level 1/4” (Ø 6.3 mm) stereo jack into which an MP3/CD/Tape player
may be connected.
12. PHONES: This is a 1/4” (Ø 6.3 mm) stereo jack output to connect the headphones. When headphones
are connected, no sound is produced from the speaker.
13. POWER LED: When this red LED is lit, the amplier is ready to work. When it is off, it means the
amplier is powered off.
BACK PANEL:
WARNING: This amplier must be earthed. Please check that the supply voltage details given on the
rating label (located on the rear panel) are in accordance with your electricity supply.
1 MAINS INPUT: This is the input socket into which the mains power cable must be connected. This
amplier is supplied with a power cable with a moulded-on plug. If the socket outlets in the home are
not suitable for this plug, use an appropriate plug adapter that can handle the power required for the
amplier.
2 POWER FUSE: In the event of the power fuse having to be replaced, rst unplug the power cable
from the mains outlet. Then remove the fuse cover and replace the power fuse with another fuse of the
same type and value. Never plug the power cable back into the mains outlet without the fuse cover. If
the power fuse blows up again when powering on the amplier, take the apparatus to a suitable service
centre for repair.
3 POWER SWITCH: This switch turns the amplier on or off.
TECHNICAL SPECIFICATIONS
Max. Rated Power/ Loudspeaker
20 Watts RMS @ 4 Ohms load/ 8” Speaker w/ Coaxial
Tweeter
Frequency Response 70 Hz to 12 kHz
Total Harmonic Distortion 0.2%
Signal to Noise Ratio - 64 dB @ max Rated Power
Input Impedance
180k Ohms
Power Consumption
35 Watts max
Maximum Input Level
40 mV (RMS)
Maximum Gain
46 dB (@ 1kHz)
Dimensions (H x W x D)
37 x 40.5 x 20 cm / 14.6 x 16 x 7.9 in.
Weight
9.2 kg / 20.3 lb
Features and Specications are subject to change without notice.
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Summary

Front Panel Controls

Microphone Input and Level

Balanced XLR input for microphones and its volume control.

Guitar Input and Level

1/4" jack for instruments and its output volume control.

Passive;Active Switch

Enables selection between passive and active instrument modes.

Tone Controls (Treble, Mid, Parametric Mid, Bass)

Adjusts high, mid, and low frequencies for tonal shaping.

Spring Reverb Control

Adjusts the intensity of the added reverb effect.

External Audio Input

Line level input for connecting CD/MP3/Tape players.

Headphone Output

1/4" stereo jack output for headphone connection.

Power Indicator

LED light indicating the amplifier's power status.

Back Panel Connections and Operation

Power Supply Warning

Caution to check supply voltage and ensure grounding.

Mains Power Input

Socket for connecting the mains power cable.

Power Fuse

Location and replacement instructions for the power fuse.

Power Switch

Switch to turn the amplifier on or off.

Technical Specifications

Power and Loudspeaker

Rated power output and speaker configuration details.

Frequency Response

The range of audible frequencies the amplifier can reproduce.

Distortion and Noise

Total Harmonic Distortion and Signal to Noise Ratio.

Input Impedance and Power

Input impedance values and maximum power consumption.

Input Level and Gain

Maximum input signal level and amplification gain.

Dimensions and Weight

Physical size and weight of the amplifier unit.

Instructions for Use and Safety

Basic Operation Steps

Guidance on connecting instrument, plugging in, and powering on.

Important Safety Warnings

Advice on handling, servicing, and avoiding hazards.

Electrical Safety Precautions

Warnings regarding humidity, liquids, and opening the unit.

Hearing Protection

Caution about high noise levels and potential hearing damage.

Marking and Conformity Information

Details on CE, WEEE, and RoHS compliance.

Stagg 20 AA R Specifications

General IconGeneral
TypeSolid State
Power20W
EQ3-band
ReverbYes
ChorusNo
Speaker1 x 8"
Headphone OutputYes
Channels2
Inputs1 x 1/4"
EQ ControlsBass, Treble
Outputs1 x 1/4"

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