Marshall Amplification Valvestate 2000 AVT series User manual

1
ENGLISH
From Jim Marshall
I would like to thank you personally for selecting one of our
Valvestate 2000 AVT amplifiers.
After its initial launch, the original Marshall Valvestate technology
received worldwide acclaim and set a new standard in affordable
quality amplification. However, my team of designers are constantly
looking for methods to make our amplifiers sound even better. As
they are all guitar players themselves this process has become a
passion within the design department.
As the name Advanced Valvestate Technology suggests, your
new amplifier benefits from their research and utilises the latest
circuitry, which is absolutely unique to Marshall. By emulating the
feel and response of an all-valve amplifier even more closely, the
new AVT range perform brilliantly and represent another major step
forward in guitar sound technology.
Since I first began making amplifiers in 1962, one of the key factors
in our success has been reliability. Therefore, many hours of
exhaustive testing have been carried out in the development of AVT
to ensure that this remains so.
I suggest that you read this manual thoroughly before operating
your new amplifier and keep it in a safe place for future reference.
This will help you to derive maximum enjoyment from our Advanced
Valvestate Technology.
Wishing you every success.
Yours Sincerely,

ENGLISH
2
WARNING! - Important safety instructions
AALWAYS fit a good quality mains plug conforming to the latest B.S.I. standards where
necessary (UK only).
BNEVER attempt to by-pass the fuses or fit ones of the incorrect value.
CDO NOT attempt to remove the amplifier chassis, there are no user serviceable parts.
DRefer all servicing to qualified service personnel including replacement of fuses and
valves. Servicing is required when the apparatus has been damaged in any way, such as
the 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.
ENEVER use an amplifier in damp or wet conditions.
FALWAYS unplug this apparatus during lightning storms or when unused for long periods of
time.
GProtect the power cord from being walked on or pinched particularly at plugs, convenience
receptacles and at the point where they exit from the apparatus.
HDO NOT switch the amplifier on without the loudspeaker connected.
IENSURE that any extension cabinets used are of the correct impedance.
JPLEASE read this instruction manual carefully before switching on.
➲ Note: This equipment has been tested and found to comply with the requirements of the EMC
directive in the E.U.
➲ CAUTION: Any changes or modifications not expressly approved by the party responsible for
compliance may void the users authority to operate the equipment.
➲ WARNING : This apparatus must be earthed!
➲ WARNING : Do not obstruct ventilation grille and always ensure free movement of air around the
amplifier!
USA ONLY - DO NOT defeat the purpose of the polarised or grounding type plug.
A polarised 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. When the provided plug does not fit into your outlet, consult an electrician for replacement
of the obsolete outlet.
FOLLOW ALL INSTRUCTIONS AND HEED ALL WARNINGS
KEEP THESE INSTRUCTIONS !
!

ENGLISH
3
Introduction
Welcome to the third and most recent generation of Marshall Valvestate guitar amplifiers -
Valvestate 2000.
The History
We first started making the critically acclaimed Valvestate amplifiers in the early 90s and then
updated the original range to the best-selling VS II line in 1996. Our original intention with
Valvestate was simple: to capture the special sound and feel of a Marshall valve amplifier by using
solid state technology. By so doing we knew we could make our unique and highly desirable tones
more affordable and thus more available to many more guitar players. The first two generations of
Valvestate both achieved these goals and have become firm favourites with players and critics alike,
the world over. Now, with the advent of the 21st Century, we have once again redefined what
guitarists can expect from affordable backline amplification. Utilising all the knowledge and
experience gained over the past 10 years, we proudly bring you - Valvestate 2000.
Addictive Tone
In this latest generation, not only will you find more, guitarist-friendly features, but more (much
more!) valve-like tone and feel. As with all our amplifiers, we started designing with a clean slate -
relying totally on our experience, skill and tonal history. As all our designers are guitarists in addition
to being exceptional engineers, the aforementioned feel and tone were an absolute priority from the
beginning. In short our goal was to make these amps so enjoyable to play, they are addictive!
Pre-amp Valve Power
In each of the Valvestate 2000 range, all the preamp stages are equipped with an ECC83
(a.k.a. 12AX7) Dual Triode valve. Drawing on our vast experience in this field, we have gone to
great lengths to ensure that this precious device delivers maximum sonic benefit at all settings and
volume levels. As a result, even the VS2000 clean sounds ring with the bell like harmonics that only
a valve pre-amp can deliver. On the Overdrive channels the ECC83's dual triodes are saturated to
their limit, providing the dynamics and feel worthy of a place in the Marshall hall of fame. The same
sort of toneful care and attention was focused on the all-important power stage of each amp too.
Once again we wanted to ensure that they delivered the warm, musical feel and 3-dimensional
sounds that have made our all-valve power-amps world-renowned. We are so proud of the end
results of our labour that we felt we had to coin a new name for the technology used. So, we
christened it AVT - Advanced Valvestate Technology.
Fire-breathing Babies
This manual covers the AVT20 and AVT50 combos plus the AVT50H head. Even though these
are the ‘babies’ of the range, they go far beyond the realms of traditional, lower powered amps.
These are all real, fire-breathing Marshall amps in their own right, and, as such, are bestowed with
all the technology, tone, and feel of their higher-powered brethren. As is the case with the entire
Valvestate 2000 Range, the loudspeakers used are all custom built by Celestion and have been
specifically designed to fully complement and augment the myriad of sounds generated by our
Advanced Valvestate Technology.

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4
1 Input Jack Socket
This is where you plug your guitar into the
amp. In case you are not aware, you must
always use a screened guitar cable, never use
an unscreened speaker lead. Also, for the best
performance this cable should be one of high
quality. If you are in any doubt regarding this,
your Marshall dealer will be more than happy to
help and advise you further.
2 Clean/Overdrive selection
switch
Your AVT20 has two selectable modes -
Clean and Overdrive. When the switch is ‘out’
Clean is selected, when it is pushed ‘in’
Overdrive mode is activated.
The Clean mode of the AVT20 has the
warm, responsive action normally associated
with a valve amp, rather than the relatively
sterile, one-dimensional sound that is typical of
many solid-state type guitar amps. At lower
Gain settings this mode remains very clean but
will evolve into a bluesy/rock type crunch at
higher Gain settings.
When Overdrive is selected it will take you
from mild crunch to aggressive ‘modern’
distortions and all-points in between. The
many sonic palettes available are dependent
on the exact settings of the front panel controls
for Gain, Volume, Treble, Middle and Bass.
3 Gain Control
This rotary control can best be described
as the sonic ‘brains’ of the amp. At lower
settings, with the Clean/Overdrive switch set to
Clean, the AVT20 will give you a wide range of
well-defined clean tones. At higher Gain
settings, the amp will start to ‘crunch up’ into
the aforementioned ‘blues/rock’ type sounds.
This ‘crunching up’ is often referred to as
‘break-up’. When Overdrive mode is selected
lower Gain settings will give you a vintage
sounding, valve distortion while higher settings
will produce more modern, high-gain tones.
4Volume Control
As its name suggests, the Volume control
determines how loud your AVT20 will be by
controlling how much signal is transferred from
the preamp to the power amp. Due to the
remarkable realism of our Advanced Valvestate
Technology, once the Volume control is turned-
up past a certain point, the preamp will start to
push the power amp section into creating its
own, desirable distortion mode - just like an all-
valve Marshall amp. When this occurs, the
AVT20's power amp will start to add musical
harmonics, compression and ‘break-up’ into
your sound.
5Tone Controls
The AVT20 is equipped with rotary Bass,
Middle, and Treble controls, all of which work
on both the Clean and Overdrive modes. These
three passive EQ controls are designed to
achieve maximum tonal variation from your
AVT20 and, just like our famous all-valve
amps, are highly inter-dependent on each
other. As a result, the way each one functions
depends on the exact position of the other two
controls. This is especially true of the Bass
and Treble controls in relation to the Middle
control. The lower the Middle control, the more
reaction can be obtained from the others. As
tone is very much down to personal taste,
experimentation and experience is probably the
best way of learning how these three controls
will affect your sound. Some suggested
settings are shown later.
Points to remember are:
A) The tone and output level coming out
of the guitar is as widely variable as there are
guitars themselves, all guitars are not designed
(nor intended) to be equal. Therefore, amp
settings will vary to suit your guitar and playing
style, and by necessity, are at your discretion.
Again, if in doubt, consult your Marshall dealer
for advice.
AVT20 1x10" Combo Front Panel Features

ENGLISH
5
1Mains Input Connector
Your AVT20 is provided with a detachable
mains (power) lead which is connected here.
The specific mains input voltage rating that
your amplifier has been built for is shown on
the back panel. Before connecting for the first
time, please ensure that your electricity supply
is compatible with your amplifier. If you have
any doubt, please get advice from a qualified
person. Your Marshall dealer will help in this
respect.
AVT20 1x10" Combo Front Panel Features
B) The tone of your sound is also dependent
on the settings of the ‘tone’ controls, and
adjusting them to taste will further enhance the
sonic textures of your AVT20. The best way to
achieve your desired settings is to experiment.
6 Reverb Depth Control
Your AVT20 is fitted with an internal spring
Reverb unit. This control affects the mix of the
direct (dry) and Reverb signals - the higher this
control is set, the greater the Reverb depth.
7 CD Input Jack Socket
The CD input will take a stereo signal from
an external source, such as a CD or tape
player, and mix it into a mono format. This will
allow you to play along with a pre-recorded
signal. Because this input is after the preamp
stage, its volume has to be controlled from your
CD or tape player.
8 Emulated DI Out Jack Socket
This jack socket carries a specially treated
output signal from your AVT20 which accurately
emulates the sonic signature of a guitar
loudspeaker. This output can be used in both
live performance and recording situations to
achieve authentic guitar amp tones without
having to use a microphone. Furthermore, if
you wish to mute the loudspeaker, for ‘silent’
recording, then merely insert an unused jack
plug (a short patch cable will do fine) or a set of
headphones into the Headphone socket.
9 Headphone Jack Socket
In addition to providing a specially filtered
output signal for a set of headphones, this jack
also disconnects the main loudspeaker,
enabling you to practice in ‘silence’.
10 External Speaker Jack Socket
This socket allows you to connect your
AVT20 into an external loudspeaker system,
provided it has an impedance of 8 or 16 ohms.
By using any one of our comprehensive range
of extension cabinets, you will be able to
unleash the massive amount of tonal options
that extra loudspeakers will provide.
AVT20 1x10" Combo Rear Panel Features

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6
AVT50 1x12" Combo & AVT50H Head Front Panel Features
1Input Jack Socket
This is where you plug your guitar into the
amp. In case you are not aware, you must
always use a screened guitar cable, never use
an unscreened speaker lead. Also, for the best
performance this cable should be one of high
quality. If you are in any doubt regarding this,
your Marshall dealer will be more than happy to
help and advise you further.
2Clean Gain Control
When the Clean channel is selected, this
rotary control can best be described as the
sonic ‘brains’ of said channel. At lower
settings, this control will give you a wide range
of well defined clean tones. At higher settings,
this control will start to ‘crunch up’ the sound of
the channel in a ‘blues/rock’ type fashion. This
‘crunching up’ is often referred to as ‘break-up’.
3Clean Volume Control
As its name suggests, this control
determines how loud the clean channel of your
AVT50 will be by controlling how much signal is
transferred from the preamp to the power amp.
The actual volume settings will be
dependent on how loud you want the channel
to be, and also what type of sound you have
selected on the pre-amp. Due to the
remarkable realism of our Advanced Valvestate
Technology, once the Volume control is turned-
up past a certain point, the preamp will start to
push the power amp section into creating its
own, desirable distortion mode - just like an all-
valve Marshall amp. When this occurs, the
AVT50’s power amp will start to add musical
harmonics, compression and ‘break-up’ into
your sound.
4Clean Tone Controls
The AVT50 Clean Channel is equipped
with rotary Bass and Treble controls, with a
pre-set mid ‘scoop’. As is the case with our all
valve amps, these two passive controls are
very inter-dependent on each other. As tone is
very much down to personal taste, experimentation
and experience of the control’s functions is
probably the best way to learn how they will
affect your sound. We would advise spending
some time with these controls to see what suits
you best. Some suggested settings are shown
later, to act as possible starting points.
5Channel Push-switch
Your AVT50 has two channels - Clean and
Overdrive. This switch selects the channel you
desire - ‘out’ for Clean and ‘in’ for Overdrive.
When using the supplied footswitch, the
channel push-switch must be left in the ‘in’
position for the footswitch to operate.
The Clean channel of the AVT50 has the
warm, responsive action normally associated
with a valve amp, rather than the relatively
sterile, one-dimensional sound that is typical of
many solid-state type guitar amps. At lower
Gain settings this channel remains very clean
but will evolve into bluesy/rock type crunch at
higher Gain settings.
When the Overdrive channel is selected it
will take you from mild crunch to aggressive
‘modern’ distortions and all-points in between.
The many sonic palettes available from
both channels are dependent on the exact
settings you choose on the front panel controls
for Gain, Volume and EQ.
6Overdrive Gain Control
When the Overdrive channel is selected,
this rotary control acts as it’s sonic ‘brain’.
Lower Gain settings will give you a vintage
sounding, valve distortion while higher settings
will produce more modern, high-gain tones.

ENGLISH
7
AVT50 1x12" Combo & AVT50H Head Front Panel Features
7Overdrive Volume Control
As its name suggests, this control
determines how loud your AVT50’s Overdrive
channel will be. The volume setting you
choose will be dependent on both how loud
you actually want to be, and also what type of
sound you have set up on the preamp, i.e. high
overdrive settings will be generating much
more preamp output level than lower, cleaner
settings. Due to the remarkable realism of our
Advanced Valvestate Technology, once the
Volume control is turned-up past a certain
point, the preamp will start to push the power
amp section into creating its own, desirable
distortion mode - just like an all-valve Marshall
amp. When this occurs, the AVT50's power
amp will start to add musical harmonics,
compression and ‘break-up’ into your sound.
8Overdrive Tone Controls
The AVT50 is equipped with rotary Bass,
Middle, and Treble controls, for the Overdrive
Channel. These three passive EQ controls are
designed to achieve maximum tonal variation
from your AVT50 and, just like our famous all-
valve amps, are highly inter-dependent on
each other. As a result, the way each one
functions depends on the exact position of the
other two controls. This is especially true of the
Bass and Treble controls in relation to the
Middle control. The lower the Middle control,
the more reaction can be obtained from the
others. As tone is very much down to personal
taste, experimentation and experience is
probably the best way of learning how these
three controls will affect your sound. Some
suggested settings are shown later.
Points to remember are:
A) The tone and output level coming out
of the guitar is as widely variable as there are
guitars themselves, guitars are not designed
(nor intended) to be equal. Therefore, amp
settings will vary to suit your guitar and playing
style, and, by necessity, are at your discretion.
Again, if in doubt, consult your Marshall dealer
for advice.
B) The tone of your sound is also
dependent on the settings of the ‘tone’ controls,
and adjusting them to taste will further enhance
the sonic textures of your AVT50.
9Reverb Depth Control
The AVT50 is fitted with an internal spring
Reverb unit. This control affects the mix of the
direct (dry) and Reverb signals - the higher the
control is set, the greater the depth of the
Reverb.
10 CD Input Jack Socket
The CD input will take a stereo signal from
an external source, such as a CD or tape
player, and mix it into a mono format. This will
allow you to play along with a pre-recorded
signal. Because this input is after the preamp
stages, its volume has to be controlled from
your CD or tape player.
11 Headphone Jack Socket
In addition to providing a specially filtered
output signal for a set of headphones, this jack
also disconnects the main loudspeaker,
enabling you to practice in ‘silence’.

ENGLISH
8
AVT50 1x12" Combo & AVT50H Head Rear Panel Features
1Mains Input Connector
Your AVT50 is provided with a detachable
mains (power) lead which is connected here.
The specific mains input voltage rating that
your amplifier has been built for is shown on
the back panel. Before connecting for the first
time, please ensure that your electricity supply
is compatible with your amplifier. If you have
any doubt, please get advice from a qualified
person. Your Marshall dealer will help in this
respect.
2Loudspeaker Jack Socket
i. Combo Version (AVT50)
This socket allows you to connect your
AVT50 into an external loudspeaker system,
provided it has an impedance of 8 or 16 ohms.
By using any one of our comprehensive range
of extension cabinets, you will be able to
unleash the massive amount of tonal options
that extra loudspeakers will provide.
ii. Head Version (AVT50H)
This is where you connect your AVT50
Head to external loudspeaker cabinets in order
to deliver the extraordinary power that only a
Marshall head can provide.
The AVT50H is specifically voiced to run
into the AVT412A / AVT412B 4x12” compact
cabinet combination. Having said this the
AVT50H is equally at home driving any one of
our other loudspeaker options, such as the
legendary 1960A/B 4x12” full size cabinets for
example.
WARNING:
Always provide the AVT50H with a load
equal to, or greater than, 4 Ohms. Using the
two loudspeaker outputs, with cabinets rated at
8 Ohms each, the full 50W of the specially
designed AVT power amplifier will be
unleashed.
3Emulated DI Out Jack Socket
This jack socket carries a specially treated
output signal from your AVT50 which
accurately emulates the sonic signature of a
guitar loudspeaker. This output can be used in
both live performance and recording situations
to achieve authentic guitar amp tones without
having to use a microphone. Furthermore, if
you wish to mute the loudspeaker, for ‘silent’
recording, then merely insert an unused jack
plug (a short patch cable will do fine) or a set of
headphones into the Headphone socket.
4FX Return Jack Socket
Use a high quality shielded lead to
connect the output of your effects unit to the
effects return jack of the AVT50H.
5FX Send Jack Socket.
The AVT50 is fully equipped with a Series
effects loop in order to allow you to connect
external effects units to the amplifier. As
always, we recommend you use high quality
leads to ensure you lose none of the tone of
the AVT50’s direct signal. Connect this output
to the input of your effects unit. Adjust the
input gain of your effects unit so as not to
overdrive its circuitry. Set the effects unit
output level to achieve the same ‘effected
volume’ as in bypass.
6Footswitch Input Jack Socket
Supplied with your new AVT50 is a
Marshall Channel select footswitch (PEDL-
00001). This plugs into the Footswitch Input
Jack Socket.
!

Valve-Drive Pre-Amp
CD
0 10 0 10 0 10 0 10
Pre-Amp
0 10
Treble
0 10
Depth Input Emulated Output
Advanced Valvestate Technology
Power
CLN / OD
Input
AVT 20
Volume MiddleGain Bass External
(Min. 8
Ω )
Ext LS DI Head
phone
Reverb
EQ
Made in England by:
Marshall Amplification plc,
Bletchley, Milton Keynes, England.
SHOCK HAZARD.DO NOT OPEN.TO REDUCETHE RISK
OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS EQUIPMENT TO RAIN
OR MOISTURE.THIS APPARATUS MUST BE EARTHED.
RISQUE DE CHOC ELECTRIQUE. NE PAS OUVRIR. POUR EVITER
LES RISQUES D’INCENDIE ET DE DECHARGES ELECTRIQUES, N’EXPOSEZ
JAMAIS CET APPAREIL A L’HUMIDITE OU A LA PLUIE. CONNECTER CET
APPAREIL A LA TERRE.
TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT
REMOVE COVER. NO USER SERVICEABLE PARTS INSIDE.REFER
SERVICINGTO QUALIFIED SERVICE PERSONNEL.
POUR EVITER LES RISQUES DE DECHARGES
ELECTRIQUES, NE PAS OUVRIR LE COUVERCLE. CET APPARIEL NE
COMPORTE AUCUNE PIECE SUSCEPTIBLE D’ETRE REPAREE PAR VOS
SOINS. FAITES TOUJOURS APPEL A UNTECHNICIEN QUALIFIE
POUR TOUTE REPARATION.
20 WATTS RMS INTO 8Ω
WARNING!:
AVIS!:
CAUTION!:
ATTENTION!:
OUTPUT:
!
120V ~ 60Hz
40 Watts
Mains Input
1 2 3 4 5 6 7 8 9 10
1
Valve-Drive Pre-Amp
CD
0 10 0 10 0 10
Bass
0 10 0 10 0 10 0 10 0 10
Gain Volume
Clean Overdrive
Treble
0 10
Treble
0 10
Depth Input Output
Advanced Valvestate Technology
Power
CLN / OD
Input
AVT 50
Volume MiddleGain Bass
Head
phone
Reverb
Loudspeaker Emulated
DI Out FX Return FX Send Footswitch
Made in England by:
Marshall Amplification plc,
Bletchley, Milton Keynes, England.
Mains Input
120V ~ 60Hz
115 Watts
WARNING:
ATTENTION:
!
WARNING!:
AVIS!:
(Minimum Imp. 4 )
SHOCK HAZARD.DO NOT OPEN.TO
REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO
NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.
THIS APPARATUS MUST BE EARTHED.
RISQUE DE CHOC ELECTRIQUE. NE PAS
OUVRIR. POUR EVITER LES RISQUES D’INCENDIE ET DE
DECHARGES ELECTRIQUES, N’EXPOSEZ JAMAIS CET
APPAREIL A L’HUMIDITE OU A LA PLUIE. CONNECTER
CET APPAREIL A LA TERRE.
TO REDUCE THE RISK OF ELECTRIC
SHOCK DO NOT REMOVE COVER. NO USER
SERVICEABLE PARTS INSIDE. REFER SERVICING TO
QUALIFIED SERVICE PERSONNEL.
POUR EVITER LES RISQUES DE
DECHARGES ELECTRIQUES, NE PAS OUVRIR LE
COUVERCLE. CET APPAREIL NE COMPORTE AUCUNE
PIECE SUSCEPTIBLE D’ETRE REPAREE PAR VOS SOINS.
FAITESTOUJOURS APPEL A UN TECHNICIEN QUALIFIE
POUR TOUTE REPARATION.
50 WATTS RMS INTO 4Ω
RISK OF HAZARDOUS ENERGY
ENERGIE ELECTRIQUE DANGEREUSE!
DO NOT OBSTRUCTVENTILLATION GRILL
NE PAS OBSTRUER LA GRILLE DE VENTILATION
WARNING!:
AVIS!:
CAUTION!:
ATTENTION!:
OUTPUT:
1 2 3 4 5 6 7 8 9 10 11
1 2 3 4 5 6
Emulated
DI Out FX Return FX Send Footswitch
Made in England by:
Marshall Amplification plc,
Bletchley, Milton Keynes, England.
Mains Input
120V ~ 60Hz
115 Watts
WARNING:
ATTENTION:
SHOCK HAZARD.DO NOT OPEN.TO
REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO
NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.
THIS APPARATUS MUST BE EARTHED.
RISQUE DE CHOC ELECTRIQUE. NE PAS
OUVRIR. POUR EVITER LES RISQUES D’INCENDIE ET DE
DECHARGES ELECTRIQUES, N’EXPOSEZ JAMAIS CET
APPAREIL A L’HUMIDITE OU A LA PLUIE. CONNECTER
CET APPAREIL A LA TERRE.
TO REDUCE THE RISK OF ELECTRIC
SHOCK DO NOT REMOVE COVER. NO USER
SERVICEABLE PARTS INSIDE. REFER SERVICING TO
QUALIFIED SERVICE PERSONNEL.
POUR EVITER LES RISQUES DE
DECHARGES ELECTRIQUES, NE PAS OUVRIR LE
COUVERCLE. CET APPAREIL NE COMPORTE AUCUNE
PIECE SUSCEPTIBLE D’ETRE REPAREE PAR VOS SOINS.
FAITESTOUJOURS APPEL A UN TECHNICIEN QUALIFIE
POUR TOUTE REPARATION.
50 WATTS RMS INTO 4Ω
WARNING!:
AVIS!:
RISK OF HAZARDOUS ENERGY
ENERGIE ELECTRIQUE DANGEREUSE!
DO NOT OBSTRUCTVENTILLATION GRILL
NE PAS OBSTRUER LA GRILLE DE VENTILATION
WARNING!:
AVIS!:
CAUTION!:
ATTENTION!:
OUTPUT:
Loudspeaker Outputs
(Minimum Total Imp. 4 )
1 2 3 4 5 6
AVT20 1x10" Combo Front Panel Features
AVT20 1x10" Combo Rear Panel Features
AVT50 1x12" Combo & AVT50H Head Front Panel Features
AVT50 1x12" Combo Rear Panel Features
AVT50H Head Rear Panel Features