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From Jim Marshall
I would like to thank you personally for selecting one of our
Valvestate 2000 AVT amplifiers.
Ever since its initial launch in the early 1990's, the original
Marshall Valvestate technology received worldwide acclaim and set a
new standard in affordable quality amplification. However, my
dedicated 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 (AVT) suggests,
your new amplifier benefits from their research and utilises their
latest circuit innovations, all of which are totally 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
yet another major step forward in guitar sound technology.
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,
1
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Summary of Contents for Marshall Amplification Valvestate 200 AVT
- Page 1 From Jim Marshall I would like to thank you personally for selecting one of our Valvestate 2000 AVT amplifiers. Ever since its initial launch in the early 1990’s, the original Marshall Valvestate technology received worldwide acclaim and set a new standard in affordable quality amplification. However, my dedicated team of designers are constantly looking for methods to make our amplifiers sound even better.
- Page 2 WARNING! - Important safety instructions WARNING: THIS APPARATUS MUST BE EARTHED! PLEASE read this instruction manual carefully before switching on. ALWAYS use the supplied mains lead, if a replacement is required please contact your authorised Marshall Dealer. NEVER attempt to by-pass the fuses or fit ones of the incorrect value. DO NOT attempt to remove the amplifier chassis, there are no user serviceable parts.
- Page 3 WARNING! - Important safety instructions (cont.) Caution: Any changes or modifications not expressly approved by the party responsible for compliance may void the user’s authority to operate the equipment. Note: It is recommended that all audio cables used to connect to the AVT150 Combo, AVT150H Head or AVT275 are of a high quality screened type.
- Page 4 Introduction What is AVT? Advanced Valvestate Technology, or AVT for short, is a major step forward in hybrid amplifier design which is exclusive to our new Valvestate 2000 (VS2000) Series of amplifiers. It has evolved from the original, critically acclaimed Marshall Valvestate technology, but is improved so that it emulates even more closely the feel and response of the classic Marshall all-valve power stage...without using valves.
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Page 5: Volume Control
Introduction (cont.) DFX Onboard At Marshall our aim is to create products that offer our fellow guitarists true inspiration in the practice and performance of their art. When integrating DFX (Digital Effects) into the tonal topology of AVT, the greatest care was taken to ensure that the highest level of signal integrity was maintained. - Page 6 AVT150/AVT150H & AVT275 Front Panel Features each one functions depends on the exact Bright Switch position of the other two controls. This is Most of the Gain controls in classic especially true of the Bass and Treble controls Marshall amps have been fitted with what is in relation to the Middle control.
- Page 7 AVT150/AVT150H & AVT275 Front Panel Features OD1 Scoop Switch OD2 Gain Control Fine tuned to create the most awesome Cranking the OD2 Gain control will mid ‘scoop’ imaginable, OD1's Scoop circuitry unleash the most extreme gain levels ever is more than just a pre-set middle control. found on a Marshall Valvestate amplifier.
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Page 8: The Master Section
AVT150/AVT150H & AVT275 Front Panel Features Overdrive Tone Controls III. FX Section Your AVT is equipped with rotary Bass, Parallel FX Loop Middle, and Treble EQ controls which are shared between the two Overdrive Channels, Your AVT boasts a rear-panel mounted OD1 and OD2. - Page 9 AVT150/AVT150H & AVT275 Front Panel Features The first 10 programs offered are all Reverbs. Reverberation effects recreate the natural echo reflections found in physical environments such as halls and rooms or, in the case of plate reverbs, a mechanically vibrating metal plate. These echoes are extremely complex in nature and are, therefore, notoriously difficult to recreate.
- Page 10 AVT150/AVT150H & AVT275 Front Panel Features DFX Mix Controls Digital FX Program/ (Clean FX & Overdrive FX) Adjust Table These determine the level of the internal This lists the 16 programs selectable via effects selected by the pair of Program controls the Program control (25) and also indicates (25).
- Page 11 AVT150 & AVT150H Rear Panel Features Mains Input Connector WARNING: Your AVT is provided with a detachable Always provide the AVT with a load equal mains (power) lead which is connected here. to, or greater than, 4 Ohms. The specific mains input voltage rating that Two 8 Ω...
- Page 12 AVT150 & AVT150H Rear Panel Features FX Loop FX Send For connection to the input of the external As already mentioned, the AVT150 and device being used. AVT150H both boast a Mono Parallel FX loop for connection with external effects units. In FX Loop Hints: addition to the FX Mix controls on the front panel (see ‘Front Panel Features’, point 22) this...
- Page 13 AVT275 Rear Panel Features Emulated Line Outputs (L, R) FX Level This pair of stereo jack sockets carries a This should be set to match the level of specially treated output signal from your AVT the processor being used (-10dB for a stomp that accurately emulates the sonic signature of box, + 4dB for a professional, rack unit).
- Page 14 COUVERCLE. CET APPAREIL NE COMPORTE AUCUNE PIECE SUSCEPTIBLE D’ETRE REPAREE PAR VOS SOINS. FAITES TOUJOURS APPEL A UN TECHNICIEN QUALIFIE Made in England by: POUR TOUTE REPARATION. Marshall Amplification plc, FX Level OUTPUT: 150 WATTS RMS INTO 4 Internal Extension...
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