Drive block - Revision history

Yek: /* 77 CUSTOM OD (MXR M77 Custom Badass Modified O.D.) */

2026-04-04T08:38:50Z

77 CUSTOM OD (MXR M77 Custom Badass Modified O.D.)

Yek: /* 77 CUSTOM OD (MXR M77 Custom Badass Modified O.D.) */

2026-04-04T08:38:18Z

77 CUSTOM OD (MXR M77 Custom Badass Modified O.D.)

Yek: /* Oversampling */

2026-03-06T15:39:32Z

Oversampling

Yek: /* Graphic EQ */

2026-03-06T15:39:19Z

Graphic EQ

Yek: /* About the Drive block */

2026-03-06T15:38:42Z

About the Drive block

Yek: /* 77 CUSTOM OD (MXR M77 Custom Badass Modified O.D.) */

2026-02-15T21:48:58Z

77 CUSTOM OD (MXR M77 Custom Badass Modified O.D.)

Yek: /* 77 CUSTOM OD (MXR M77 Custom Badass Modified O.D.) */

2026-02-15T21:47:10Z

77 CUSTOM OD (MXR M77 Custom Badass Modified O.D.)

Yek: /* TUBE DRIVE 3-KNOB (Butler Tube Driver) */

2026-02-13T16:56:54Z

TUBE DRIVE 3-KNOB (Butler Tube Driver)

Yek: /* Drive block */

2026-02-10T19:14:23Z

Drive block

Yek: /* Distortion from the Cab block */

2026-02-05T18:24:59Z

Distortion from the Cab block

@@ Line 540: / Line 540: @@
 <blockquote>
-''"The Bump switch adds 5 dB of boost at 300 Hz. The Mid control is already set to do this. Turn the Mid control up to 7.4."''
+''"The Bump switch adds 5 dB of boost at 300 Hz. The Mid control is already set to do this. Turn the Mid control up to 7.4."'' [https://forum.fractalaudio.com/threads/77-custom-od-bump-switch.218998/#post-2759146 Fractal Audio]
 </blockquote>

@@ Line 540: / Line 540: @@
 <blockquote>
-'''FRACTAL AUDIO QUOTES'''
+''"The Bump switch adds 5 dB of boost at 300 Hz. The Mid control is already set to do this. Turn the Mid control up to 7.4."''
 </blockquote>

@@ Line 361: / Line 361: @@
 Firmware 32.02 and later.
 When set to HIGH the oversampling rate is doubled which results in less aliasing. This increases CPU usage considerably.
 =Tips, tricks and troubleshooting=

← Older revision		Revision as of 15:39, 6 March 2026
Line 357:		Line 357:

	The EQ is reset when changing the Drive type.		The EQ is reset when changing the Drive type.
		+
		+	==Oversampling==
		+
		+	Firmware 32.02 and later.
		+	When set to HIGH the oversampling rate is doubled which results in less aliasing. This increases CPU usage considerably.

	=Tips, tricks and troubleshooting=		=Tips, tricks and troubleshooting=

← Older revision		Revision as of 15:38, 6 March 2026
Line 71:		Line 71:

	Read <q>[[Latency\|Latency]]</q> for more information.		Read <q>[[Latency\|Latency]]</q> for more information.
		+
		+	In current firmware, there's also an Oversampling parameter in the Drive block. When set to HIGH the oversampling rate is doubled which results in less aliasing. This increases CPU usage considerably.

	'''Polarity'''		'''Polarity'''

← Older revision		Revision as of 21:48, 15 February 2026
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	Controls: Tone, Output, 100HZ cut/boost, Gain and Bump switch (alternate EQ voicing that boosts the lows and mids, like a Tube Screamer).		Controls: Tone, Output, 100HZ cut/boost, Gain and Bump switch (alternate EQ voicing that boosts the lows and mids, like a Tube Screamer).
		+
		+	<blockquote>
		+	'''FRACTAL AUDIO QUOTES'''
		+	<HR>
		+	<blockquote>
		+	[https://forum.fractalaudio.com/threads/77-custom-od-bump-switch.218998/#post-2759146]
		+	The Bump switch adds 5 dB of boost at 300 Hz. The Mid control is already set to do this. Turn the Mid control up to 7.4.
		+	</blockquote>
		+	</blockquote>

	[https://www.premierguitar.com/gear/mxr-custom-badass-modified-o-d-pedal-review Premier Guitar article]		[https://www.premierguitar.com/gear/mxr-custom-badass-modified-o-d-pedal-review Premier Guitar article]

@@ Line 527: / Line 527: @@
 From [https://www.jimdunlop.com/mxr-custom-badass-modified-o-d/ MXR'S Custom Badass Series], a classic overdrive circuit that's been upgraded with a 100HZ control and a Bump switch for improved performance and versatility.
-The sound was similar to an SD-1.
+The sound is similar to an SD-1.
 Controls: Tone, Output, 100HZ cut/boost, Gain and Bump switch (alternate EQ voicing that boosts the lows and mids, like a Tube Screamer).

@@ Line 1,878: / Line 1,878: @@
 [https://forum.fractalaudio.com/threads/fractal-audio-drive-models-tube-drv-based-on-butler-tube-driver-3-knob-and-4-knob-versions.123761/ Original forum thread]
-The Tube Driver is one of those rare pedals that contains a real tube and uses it. It was originally designed by B.K. Butler, now [http://www.butleraudio.com/ Butler Audio], a keyboard player, to simulate an overdriven Hammond organ as heard in Deep Purple material. Eric Johnson used a Tube Driver into a Plexi when recording his classic [https://en.wikipedia.org/wiki/Cliffs_of_Dover_(composition) “Cliffs of Dover”] recording. Other famous users include Joe Satriani, David Gilmour and Billy Gibbons. The name of the unit can cause some confusion. We have the Chandler Tube Driver, the Tube Works Tube Driver and the Butler Tube Driver. Butler’s first prototypes were marketed by a 3rd party: Chandler. According to Butler, Chandler ran off with the design and began selling copies, excluding Butler from the deal. Butler then started Tube Works, later simply named Butler. The 4-knob version costs $299.
+The Tube Driver is one of those rare pedals that contains a real tube and uses it. It was originally designed by B.K. Butler, now [http://www.butleraudio.com/ Butler Audio], a keyboard player, to simulate an overdriven Hammond organ as heard in Deep Purple material. Eric Johnson used a Tube Driver into a jumpered Plexi when recording his classic [https://en.wikipedia.org/wiki/Cliffs_of_Dover_(composition) “Cliffs of Dover”] recording. Other famous users include Joe Satriani, David Gilmour and Billy Gibbons. The name of the unit can cause some confusion. We have the Chandler Tube Driver, the Tube Works Tube Driver and the Butler Tube Driver. Butler’s first prototypes were marketed by a 3rd party: Chandler. According to Butler, Chandler ran off with the design and began selling copies, excluding Butler from the deal. Butler then started Tube Works, later simply named Butler. The 4-knob version costs $299.
 <blockquote>''“Actually the Chandler thing was a relatively minor incident in the overall history of my business activities. There’s not enough room here to elaborate much, but the truth of the matter is that somehow Chandler decided at one point that they had been the designer of the product, came up with the TD trademark and that I was infringing on their IP. They obviously had somebody attempt to copy the electronics and the physical design of my TD, then produced and sold them. I don’t know how many unauthorized units are out there. The mistakes inside are essentially within the EQ area and it would take too long to describe them. Also there is a basic ground loop mistake as well. The overall sound of the C copy is somewhat muted and not as clear on the upper harmonics, etc. Eric Johnson never used one of these copies as far as I know. All his pedals are ones I personally made. I never could understand why Chandler did that copy thing… They even challenged me in court and tried to convince the judge that Chandler was the actual owner of my design and the Tube Driver trademark. But the truth was obvious: In the end what was mine to begin with remains mine still… I then designed the black Real Tube pedal in 1986 which I still think is a superior pedal in some ways to the Tube Driver (ZZ Top’s Billy Gibbons agrees) and then went on to design all my Tube Works SKUs: MosValve, Tube Works Real Tube rack products, combo amps and reverb… then the smaller 3 knob version of the Tube Driver was designed in an attempt to give an entry level price to tube lovers. Actually I never completely stopped making original Tube Driver pedals, but just didn’t emphasize them so much during the early TW years. Later in about 1993 or 1994 I revived the pedal in earnest and named it after my ‘love on 4 wheels’, the model 911. Many will be glad to know that I’m now making a few new Tube Drivers per month again due to word of mouth ‘push’. They have better components than the original as far as pots, capacitors, etc. I still use metal Switchcraft jacks and they’re completely true to the original design.”'' Butler</blockquote>
@@ Line 1,889: / Line 1,889: @@
 Original controls on the 4-knob version: Out Level, Lo and Hi EQ, and Tube Drive.
-Eric Johnson (see pic) uses the 4-knob version into his Plexi (actually, 5 knobs because it has an additional Bias control) and turns off Bass and Treble completely. Like EJ, most players seem to prefer the 4-knob version of the real pedal because it is true to the original, according to Butler.
+Eric Johnson (see pic) uses the 4-knob version into his jumpered Plexi (actually, 5 knobs because it has an additional Bias control) and turns off Bass and Treble completely. Like EJ, most players seem to prefer the 4-knob model of the real pedal because it is true to the original, according to Butler. [https://www.youtube.com/watch?v=lfn3o7VJ_Kc In this video] Andy Wood demonstrates that the pedal works best with jumper amp channels instead of a single channel.
 When it comes to Fractal Audio’s models, the 3-knob model is more of a favorite. It’s based on the entry-level Tube Driver, has more top end and its gain is more manageable. The models are featured in some factory presets. [https://wiki.fractalaudio.com/wiki/index.php?title=Factory_presets Search this wiki page] for “Tube Drive” or “Tube Driver”. When turn down Drive to zero, there’s almost no output level. For cutting blues and rock tones, set Drive between 3 and 6 on the 3-knob version, decrease Tone and run it into a Fender amp model.

@@ Line 7: / Line 7: @@
 '''AM4''' — 2 blocks, 4 channels<BR>
 '''VP4''' — 4 blocks, 4 channels
 '''Axe-Fx II''', '''AX8''', '''FX8''' — 2 blocks, X/Y

@@ Line 466: / Line 466: @@
 ==Distortion from the Cab block==
-The [[Cab_block#Mic_preamp_and_channel_strip_modeling | Cab block's Preamp page]] provides tools to simulate clipping from mic preamps, channel strips and tape.
+The Cab block's preamp page provides tools to simulate clipping from mic preamps, channel strips and tape.
 ==Dynamic Distortion block==