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INTRODUCTION
Legend Amps F-1 guitar preamp is intended for studio use and live performances.
“AMT Legend Amps” is a new revolutionary series of one-channel
preamps (JFET-preamps) from AMT Electronics, developed with
principally new approach to guitar sound formation.
The technology of analog modeling of the physical processes occurring in real
vacuum tube limiting the guitar signals was used as the basis for the new guitar
pedals series.
It became possible due to the application of original circuitry solutions.
The series’ channels structuring conforms to the processes occurring in real tube-
based devices. It results in formation of the structure of limitation, dynamics and
range close to he ones used in popular tube amplifiers.
Having compact sizes and low energy consumption characteristic to semiconductor-
based effects AMT Legend Amps possess a number of unique features found in real
tube preamps and amplifiers:
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Preamps included into AMT Legend Amps series provide excellent playing
dynamics characteristic to real tube-based devices and are in no way inferior
to them.
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With the limitation range similar to tube channel the preamps of the series
ensure terrific thickness and power to the resulting sound. Working with AMT
Legend Amps preamps you won’t feel the urge to cut out the most informative
middle frequencies, which in turn will provide great readability of your guitar in
the sound mix.
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Like tube preamps AMT Legend amps provide gradual increase of the limiting
stages number as the gain grows.
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The series’ preamps use passive circuits of tone shaping which are in full
conformity with the tone controls during original tube overdrives.
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The high level of output signal of AMT Legend Amps (+10 dB at max Level
position) corresponds to the tube preamps’ output signal levels. Thus you have
adjustable signal level which makes it possible to connect the preamps to any
input (RETURN, DIRECT, LINE etc.) including INPUT POWER AMP.
Sound Character and Operation Principles of AMT Legend Amps F-1:
AMT F-1 is the first among the basic modules of the entire AMT Legend Amps
series.
You can use AMT F-1 to build a complex of multi-channel preamp from mono
channels of AMT Legend Amps series - P-1, B-1, M-1, R-1, S-1. The series is
constantly expanding thus giving you a chance to obtain a unique 100% analog tool
for your guitar sound shaping.
Of the entire series only AMT F-1 uses included power adapter.
AMT F-1 is a preamp with internal CLEAN channel and the possibility of switching to
external channel (any auxiliary overdrive effect) by means of a fot switch.
AMT F-1
has the insert loop of serial type with standard -10dB level intended for connection of
auxiliary effects and boosting the effect signal to standard 0dB level or higher
(MASTER VOLUME), which is sufficient to operate directly with power amplifier. In
case of connection to a mixer the preamp has speaker simulator mode. The mode
can be selected by the switch loicated on the left panel of the device. AMT F-1
provides the built-in power hub to supply 9…12V to external channel and auxiliary
effects.
The bottom of AMT F-1 (under the box’s cover) has FX. Loop mode switch
serial/parallel which significantly expands your choices.
In case of connection to Ch. send, Ch. return AMT F-1 preamp there is a bi-color
LED indicator (located on the front panel): Clean channel AMT F-1 - green, Lead
external channel - red. If AMT F-1 is used in mono mode (without external
overdriven channels) the LED is single-colored and the footswitch acts as «Bypass»
Clean channel AMT F-1.
Important Note! The preamps of the AMT Legend Amps series
like other top class devices are sensitive to power source
quality.
For this series we do recommend to use the adapter meeting the
necessary quality requirements (AC/DC Adapter SA12DC-12V 1,25A).
Before you start
For safe transportation the device was carefully packaged by the manufacturer.
However, if the cardboard packaging is damaged you should immediately
inspect the device for the absence of external damages.
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In case of damages do NOT SEND the device to
manufacturer, but inform the seller or transport agency,
since otherwise you will lose the right to damage
compensation.
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In order to avoid damages during storage and transportation
always use original packing.
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Do not allow children to play with the device and packaging
materials.
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Please, recycle all packing materials in the way harmless to
the environment.
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In order to avoid the device overheating provide a sufficient
airflow around it; do not cover it and do not place near other
heat emitting devices.
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Device operation near powerful radio transmitters and
sources of high-frequency signals can result in appreciable
deterioration of sound. In this case increase the distance
between the device and the transmitter and use screened
cables for all interconnections.
CAUTION!
Please be aware that high volume can harm your hearing and /
or damage the dynamic heads of your acoustic system. Before
turning the device on rotate Volume controls to extreme left
position (counter-clockwise). At all times try to adhere to
moderate volume level.
Specifications
INPUT
Input impedance
1,0 MOhm
Nom. sensitivity
-20dB
OUTPUT
Output impedance
10 kOhm
Output signal level (AMP mode)
+10dB
Output signal level (CAB.SIM. mode)
-10dB
CH. SEND
Output impedance
10 kOhm
Output signal level
0dB
CH. RETURN
Input impedance
1.0 MOhm
Nom. sensitivity
0dB
FX. SEND
Output impedance
10 kOhm
Output signal level
-10dB
FX. RETURN
Input impedance
1.0 MOhm
Nom. sensitivity
-10dB
Power
Voltage DC
9…12V
Consumed current nom.
6.0mA
Power adapter (optional)
AC/DC Adapter
SA12DC-12V 1,25A
Voltage DC
12V
Load current
1.25 A
Dimensions / weight
Net dimensions (W
хНх
D).
111
х
58
х
73 mm
Net weight
0.247 kg.
Overall dimmensions (W
х
H
х
D).
Appr. 125
х
83
х
103 mm.
GROSS weight
Appr. 0.3 kg.
Use only external devices and accessories recommended
by the manufacturer.
