Drive block descriptions Amp and cab block diagrams content compiled from the Axe-Fx II manual, Wiki and forum suggestions, corrections, etc.: send a PM to JMA at the Fractal Audio forum firmware v14.02 ~ Axe-Edit v3.0.9 ~ rev. April 15, 2014...
TOP ROW BOTTOM ROW INPUT DRIVE – Also known as Drive, Volume, Gain, etc. It is the knob closest INPUT TRIM – A clean, linear gain applied at the input to the amp block that to the input jack. In many cases it has a bright cap so the frequency response adjusts the relative gain of the preamp.
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TOP ROW BOTTOM ROW LOW RES FREQ/RES Q/RESONANCE – Guitar loudspeakers have a low-frequency XFORMER LOW/HIGH FREQ – These set the output transformer bandwidth. resonance, typically about 100 Hz. This shifts up slightly when the speaker SPEAKER DRIVE – Simulates distortion caused by pushing a speaker too far. It is mounted in an enclosure and is typically lower for open back cabs.
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TOP ROW BOTTOM ROW SUPPLY SAG – Controls power supply impedance. Higher settings simulate B+ TIME CONSTANT – Associated with SUPPLY SAG. Controls rate of change in higher power supply impedance, causing greater tube plate voltage (B+) power tube plate supply. “B+” refers to one of the high voltage “taps” or outputs “droop”...
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TOP ROW BOTTOM ROW PRESENCE FREQ – Alters the center frequency of the amp’s PRESENCE control. TRIODE1/2 PLATE FREQ – Sets the cutoff frequency of the plate impedance for the next-to-last (triode 1) and last (triode 2) triode in the chain, which allows DEPTH FREQ –...
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TOP ROW BOTTOM ROW LOW CUT FREQ – Reduces the amount of low frequency (10-1000Hz) before the TONESTACK TYPE preamp input. Use this is to tighten up a tubby bass end. Somewhere between ACTIVE – Gives each tone control ±12 dB boost/cut making them more 10-150Hz is generally where it will sound best for standard guitar tones.
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TOP ROW BOTTOM ROW TREMOLO FREQ/DEPTH (bias tremolo) – Works by varying the bias of the virtual INPUT SELECT – The Amp block processes audio in mono. This control deter- power tubes, resulting in a particularly “organic” sound. Most importantly, the mines how incoming stereo signals will be processed.
TOP ROW BOTTOM ROW CAB – Loads a cabinet impulse response (IR). The older FAS and RW cabs were MIC – Don’t feel that you have to add a mic unless you want to add EQ, which recorded with neutral mics. OH, Kalthallen, and the Mix/Producer Pack series is basically what you would be doing.
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FACTORY CABINETS 1 1x6 Oval 39 4x12 1960B T75 (RW) 77 1x10 Prince Tone Black Mix 115 1x12 Nuclear Tone Mix 2 1x8 Tweed 40 4x12 1960B K120 (RW) 78 1x10 Prince Tone Silver Mix 116 1x12 Scumtone 25W Mix 3 1x10 Gold 4x12 1960B V30 (RW) 79 1x12 Junior Blues Mix...
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AXE-FX AMP BASED ON DESCRIPTION 1987X Jump ... . Marshall 1987x Vintage Series ..Reissue of the 50w JMP Lead 1987. Features an “essential” mod to the tonestack of this Plexi. Emulates “jumpering the inputs”...
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AXE-FX AMP BASED ON DESCRIPTION Destruction”. AFD mode adds an extra gain stage, 34 mode is based on Slash’s modded JCM 800 (2203). Buttery $ ....Budda Twinmaster ....Based loosely on a late 90’s specimen. Relies mostly on power amp distortion. CA3+ Clean .
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AXE-FX AMP BASED ON DESCRIPTION FAS Bass ....n/a .......Custom Fractal bass model. This amp uses an active tone stack so the Fat switch will have no effect. FAS Brootalz .
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AXE-FX AMP BASED ON DESCRIPTION Plexi 50w Jump ..Marshall Super Lead 1959 ..Emulates “jumpering the inputs” on a 4-hole amp. Plexi 50w Nrml .
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AXE-FX AMP BASED ON DESCRIPTION Tube Pre $ ... . . generic tube preamp ....Completely neutral, low-gain tube preamp useful for “warming up” various sources. Two Stone J35 1 9 .
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AXE-FX CAB DESCRIPTION 1x6 Oval ......6” Supro, 6x9 oval speaker used in some early amps (Supro). Combine with a Plexi for some Zep. 1x8 Tweed .
DRIVE BLOCK DESCRIPTION BB Pre ....Xotic Pedals BB Preamp Bender Fuzz ..Classic Tonebender circuit Bit Crusher ..A black box we found lying in the trash outside Studio Harshclip Blues OD .
2013-06-29 – Updated the cab suggestion list to include the new factory cabs introduced in firmware 10. The list now accurately reflects the information on the Axe-Fx II Wiki. Also gave it a badly needed overhaul to make it more readable.
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