Guitar Amplifier Head with DFX
Product Code 2390
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The AVT150H is the head version of the AVT150 and boasts all the same features and facilities as its combo brother. This includes the excellent “Scoop” facility. On OD1 this radically scoops the mid frequencies whilst tightening the bass for aggressive driving rhythm sounds. On OD2 the middle is again dipped, but a cut in the upper frequencies smoothes out the sound for a more bass heavy (“Nu”) Metal selection.
Driving the AVT412A (angled) and AVT412B (straight), 4x12 in., 200-watt, Celestion loaded cabinets, this 4-channel head brings absolute flexibility and forms the ultimate stage rig. For an even more imposing set-up, the AVT150H can drive standard 1960 4x12 in. cabinets. As with the AVT150 combo, the head also features a Headphone Jack, Speaker Emulated Line-Out, Effects Loop with level control and FX Mix Control.
What is AVT?
In Marshall’s quest to give players the ultimate tone at a realistic price, they have combined the latest innovations in valve, solid state and digital technologies to achieve optimum sonic performance. AVT has evolved from their original, critically acclaimed Marshall Valvestate technology, but is vastly improved so it emulates the tone, feel and response of their world-renowned, all-valve amplifiers with unerring accuracy… without using valves in the power stage.
Marshall’s long history and experience in the field of valve amplification was utilized in the development of the new AVT power amp. This extremely responsive and warm sounding circuitry was then coupled with the specially voiced, ECC83 (a.k.a 12AX7) valve driven pre-amp section, to provide 100% valve/analog warmth from input to output. Combined with numerous user-friendly features, they believe we’ve created the best value-for-money range of Marshall amplifiers ever!
Valve Drive Pre-Amp
From the compact AVT20, right up to the thunderous roar of the feature packed, 4-channel AVT150H, each model in their brand new AVT line boasts a pre-amp stage that is driven by an ECC83 Dual Triode valve. Unlike certain other hybrid amps out there, this valve isn’t merely acting as a pilot light. Instead it is playing the central role in the gain, distortion and tone generating circuitry. They have gone to great lengths to ensure that this precious device delivers maximum sonic benefit at all settings and volume levels. The resulting clean sounds ring with the bell-like harmonics that only a valve pre-amp can deliver and the break-up is never harsh or unnatural sounding. Whenever you select an AVT Overdrive channel, the ECC83 is saturated to its limit, providing dynamics and feel worthy of a place in the Marshall hall of fame.
Power Amp Delivery
The same, unrivalled design expertise that went into the pre-amp was also channeled into the design of the AVT power stage. Using frequency dependent power amp damping and their proprietary, dynamic clip level technology (which emulates the HT supply of a valve power amp), each AVT power stage creates the warm, musical feel and 3-dimensional sounds that made Marshall’s all-valve power amps world-renowned.
Also all AVT products will deliver the goods in the often hostile and unpredictable environment of the live performance stage - which is why the AVT power amps of 50 watts and up are fan cooled for optimum reliability.
The AVT100, AVT150, AVT150H and AVT275 all have on-board DFX (Digital Effects). Here the greatest care was taken to ensure that the highest level of signal integrity was maintained at all times. They achieved this by successfully integrating DFX into the tonal topology of AVT without adding any of the nasty-sounding, artificial “grain” often associated with DFX. To make the 16, custom-voiced DFX as controllable and user friendly as possible the relevant models are all supplied with an LED equipped foot controller which allows you to switch the amp’s DFX on and off, as well as change channels.
The flexibility of the AVT150, AVT150H and AVT275 is further enhanced by having 2 DFX sections, 1 for the Clean and Acoustic Simulator channels, and the other for the 2 Overdrive channels.
Output (RMS): 150 watts
Impedance: 4 ohms
Acoustic Simulator: Yes
Digital FX Section: x 2
FX Select Switch: x 2
Accutronics Reverb: No
FX Loop: Parallel
FX Level Switch: Yes
FX Mix Controls: x 2
Scoop Switch: x 2
Bright Switch: Yes
Emulated Line Out: Yes
Headphone Jack: Yes
Master Volume: Yes
Presence Control: Yes
Speaker Outputs: 2 ext.
CD Input: No
Dimensions (mm): 671 x 271 x 250
Weight (Kg): 15
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