They sound different. Just to be sure I just compared the Deluxe Verb model with the reference amp and it's correct. The amp model, regardless of how accurate it is (and it's probably grossly inaccurate as I never compared it to any actual amp) is very popular and that's why it was never matched to any real amp. Not sure why they did it that way but it is what it is. Looks like it was that way from the factory. For a mere fraction of the cost, our cheapest amp, the Dirty Shirley is widely considered a steal by guitar experts. ", "It's a crazy sounding amp, sounds nothing like your typical Fender. This page lists all amp models in Fractal Audio's current generation of guitar processors, with brief additional information (based on "Cygnus" amp modeling). A mu-follower doesn't compress and distort like a cathode follower does. ", "It's a single-ended power amp with negative feedback and bias tremolo. It's not as accurate but some people really liked it so we kept it and created new models for the Ares/Cygnus platform. The Jose-style MV imparts a very high source resistance to the tone stack which causes much more insertion loss and therefore lower drive level into the power amp. Other modelers use static waveshapers. The seperate eq and the tube driven effects loop were added for that situation. What did guys do for $ when the 80's died out? He's modded amps and built rack systems for everyone from Jerry Cantrell to Eddie Van Halen to Steve Stevens, and he's still the guy Slash calls to set up his pedalboard. Otherwise things are pretty similar. ", "Our Vox models are based on a fairly new AC30HWHD head. You can also try reducing the Master Bias Excursion but that won't get rid of the pre-drive control distortion. Channel 1 (Mark IIC+ Clean): Gain, Master, Presence, Treble, Mid, Bass, Mid/Boost switch, graphic EQ, reverb (not modeled), Channel 2 (Mark IIC+ Gain/Shred): (Pull) Gain, Master, (Pull) Presence, Treble, Mid, Bass, graphic EQ (not modeled), Shred mode switch, Channel 3 (Mark IIC+ Gain/Shred): (Pull) Gain, Master, (Pull) Presence, Treble, Mid, Bass, graphic EQ (not modeled), Shred mode switch, Gain, Lead Drive, Treble, Bass, Mid, Presence, Master, graphic EQ, Pentode/Triode switch, Class-A/Simul-Class switch, Voicing switch (Mid Gain / Harmonics), Variac, Rhythm 2 channel: Pull Fat, Presence Shift, Lead channel: Pull Bright, Pull Fat, Presence Shift, Drive, Lead Drive, Treble, Middle, Bass, Presence (preamp, on Lead 2 models), Dynamic Voice EQ (not modeled), Power tubes: same as USA Lead model (6L6), Volume, Bass, Mid, Treble, FAT switch, Reverb (not modeled), Volume, Treble, Bass, Middle, Fat switch, Tremolo, Reverb (not modeled), Vibrato channel: Volume, Bass, Treble, Vibrato (not modeled), Cab: Fender 1x15 (Jensen C15N, JBL D130, Eminence), Volume, Bass, Treble, Bright switch, Reverb (not modeled), Tremolo, Volume, Bass, Mid, Treble, Presence, three-position Bright switch (center: off, top: clarity and sparkle, bottom: jangly highs), 1959SLP JUMPED (100W Marshall Super Lead Plexi 1959 reissue), 1987X JUMPED (50W Marshall 1987X reissue), 59 BASSGUY BRIGHT (1959 Fender narrow-panel Tweed Bassman, 5F6-A), 59 BASSGUY RI JUMPED (Fender 59 Bassman LTD Vintage Reissue), 5F1 TWEED (Fender narrow-panel Tweed Champ, 5F1), 5F1 TWEED EC (2011 Fender EC Vibro-Champ), 5F8 TWEED BRIGHT (Keith Urban's 1959 Fender narrow-panel high-power "big box" Tweed Twin, 5F8, 65 BASSGUY BASS (Dweezil Zappa's 1965 Blackface Fender Bassman head, AB165), 6G12 CONCERT (1960 Brownface Fender Concert, 6G12), 6G4 SUPER (1960 Brownface Fender Super, 6G4), BAND-COMMANDER (1968 Silverface/Blackface Fender Bandmaster head, AB763), BLANKENSHIP LEEDS (Dweezil Zappa's Blankenship Leeds 21), BRIT 800 #34 (Marshall JCM 800 with Santiago #34 modifications), BRIT BROWN (custom model, producing the Plexi "Brown Sound"), BRIT SILVER (100W Lerxst Omega / Marshall 2555 Silver Jubilee), CA3+ CLEAN (Custom Audio Amplifiers 3+ SE preamp), CAROL-ANN TRIPTIK CLASSIC (Carol-Ann Triptik), CAROL-ANN TUCANA CLEAN (Carol-Ann Tucana 3), DELUXE TWEED (1957 Fender narrow-panel Tweed Deluxe, 5E3), DELUXE VERB NORMAL (1965 Blackface Fender Deluxe Reverb, AB763), DIRTY SHIRLEY (40W Friedman Dirty Shirley), DOUBLE VERB NORMAL (1966 blackface Fender Twin Reverb), DOUBLE VERB SILVERFACE (1971 silverface Fender Twin Reverb), DOUBLE VERB VIBRATO (1966 blackface Fender Twin Reverb), DWEEZIL'S BASSGUY (Dweezil Zappa's 1965 blackface Fender Bassman, AB165), EURO BLUE (Bogner Ecstasy 20th Anniversary), FRYETTE D60 LESS (Fryette Deliverance 60), MATCHBOX CHIEFTAIN 1 (Matchless Chieftain), PVH 6160 BLOCK (Peavey "Block Letter" EVH 5150), PVH 6160+ CLEAN (Peavey 6505+ / EVH 5150-II), PVH 6160+ LEAD (Peavey 6505+ / EVH 5150-II), PLEXI 100W 1970 (1970 100W Marshall Plexi), PLEXI 100W HIGH (1969 100W Marshall Plexi), PLEXI 50W HIGH 1 (1972 50W Marshall Plexi), PRINCE TONE 5F2 (Fender Tweed Princeton, 5F2-A), PRINCE TONE AA964 (silverface Fender Princeton without reverb, AA964), PRINCE TONE REVERB (1966 blackface Fender Princeton with reverb, AA964), RECTO1 ORANGE MODERN (MESA Dual Rectifier, 2 channels), RECTO2 ORANGE MODERN (MESA Dual Rectifier, 3 channels), SHIVER CLEAN (Bogner Shiva 20th Anniversary), SOLO 99 CLEAN (Soldano/Caswell X99 preamp), SUPER VERB NORMAL (1964 Fender Super Reverb, AB763), TEXAS STAR CLEAN (MESA Lone Star Classic), TREMOLO LUX (blackface Fender Tremolux, AA763), TRIPLE CREST 2 (MESA Triple Crown TC-100), VIBRATO LUX (1962/1963 brownface Fender Vibrolux, 6G11), VIBRATO VERB AA (1964 blackface Fender Vibroverb, AA763), VIBRATO VERB AB (Fender Vibroverb, AB763), VIBRATO VERB CUSTOM (Fender Vibroverb Custom Reissue), Yek's Guide to the Fractal Audio Amplifier Models, https://wiki.fractalaudio.com/wiki/index.php?title=Amplifier_models_list&oldid=76692, (about the Plexi model in the Standard/Ultra): "One of the first mods people make to real 'Plexi' Marshalls is to "clip the bright cap". But, she pushed through all of those challenges and shes now here to teach other people too. They just call it treble. I set the Edge control to where I thought it sounded best. ", (to emulate Pull Shift on the Bass) "Put a Tilt EQ before the amp block with a frequency of 320 Hz and a gain of -3 dB. So it's a high-gain Dumble. $249.00. Depending on the firmware, some models may not yet be available on every device. As with the real amp everything now interacts. Also note that this amp suffers from extreme blocking distortion at or near maximum gain. ", Boosted for more gain and high-frequency emphasis, "The secret of the Chieftain is the split cathode bias. ", "The model is based on the Hi input of a 1981 50W Master Volume "2204" Plexi. ", "I have an actual Slash signature model and spent a lot of time measuring, listening and comparing. It lends a unique character to the tone. Here are some thoughts from Dave on his Tone Talk podcast. The tone stack has no treble control. It's a very good sounding one. ", (Classic mode): "On the real amp, you would set the Input level at 2 O'clock and the Gain at 1 to 2 O'clock to get a great classic rock rhythm tone. For cleaner sounds it tends to be objectionable. The amp is modeled assuming a 16-ohm load. On the Ojai there is a bright cap on the Master Volume. ", "The ODS-100 Ford 2 model is not based on the HRM model with the HRM tonestack removed. ", "The amp has a Hi Cut but it's labeled Brilliance. In the past, having Friedman build or modify your amp required a certain level of notoriety, but now his sonic wizardry is available to everyday players. The cathode resistors are very large and the amp shifts into Class B operation early causing a spitty, buzzy distortion quality. The other is a "regular" one with the rocker switches. ", Wrecker Express: Bright switch on original amp in center or top position, Wrecker Express Bright: Bright switch on original amp in bottom (brightest) position, "The secret to a Trainwreck is the output transformer. ", "Buttery is a virtual amp model that was created by ear. They sound virtually identical. We did notice that this amp has less gain than the one used originally but the model is faithful to the amp. So if you use a 16-ohm speaker you get more feedback (and much more bass) than if you use an 8-ohm speaker. Some amps have a second drive control, typically called an Overdrive, located further downstream which allows you to balance the pre- and post distortion. Another reason is that JCM800s use relatively low amounts of negative feedback (which is why they're so loud). In fact all stages in a Dumble typically have an AC load-line that's different than the DC load-line due to the load resistance being significant in relation to the plate resistor. I'm getting the 50W version. In the actual amp the Treble control is re-purposed as a Negative Feedback control. The Soldano X-99 uses motorized pots. You can do this by reducing the high-cut frequency in the input EQ. Modern AC30's don't have this flaw. ", "Don't be afraid to turn the bass all the way down or the treble all the way up. Diezel's have a lot of filtering. ", "The red channels (of 50w and 100w models) are identical. These mods make the amp heavier and less strident. The various clones I have are cool and have their own thing going but they don't sound like the Dumble. Graphic EQs should have a nice, linear-in-dB response. The cathode capacitor charges up and the bias point shifts dramatically. Around 4 or so. The OD-2 is not the best amp for those tones, I totally agree with you, but a Dumble or clone doesn't really do fast dampened power chords like the OD-2 will do either. Having the actual builder involved kind of closes the loop fully. ", "The Capt. ", "Chris Quigley's 6505 was the reference amp. Some of the add-ons on this site are powered by. Damn sight better than sound clips for auditioning to guys that haven't got the ability to get to a Dealer. If the model is too bassy for you then you would find the real amp too bassy, or at least our particular reference model. However, 2500 amps later its not really seen that way any more as the CA's have always had their own thing going on tonally that is very much more in a modified Marshall vein. To see our data use policy, opt out, or contact us please view our. The 50W version has about twice the gain as a result. The Bass/Treble switch would be different amp models. ", "An AC-30 has no negative feedback which is why it sounds the way it does. I think it's partly due to the fact that it has a bias mod so it's biased a bit warmer than a stock version. In fact, its impossible to talk about American music history without prominently featuring Detroit. I always turn it on and I've set it on by default for Q2.03. ", "Based on a Fender AA964 Princeton. ", (about the difference between the "JP Green" and "USA Clean") "JP has less gain and a much larger midrange potentiometer. Dave is going to build me one. People put the knob at 5.0 and go "wow, this amp is dark". ", "The Rocket has a different preamp (than the Express) with the tone stack before the PI. Any significant length of cable will then attenuate the highs due to the cable capacitance. It's worse on lower notes because lower notes have more energy and charge the cap more. FWIW, this is a terrible loop design but "it's a Dumble" so it's all part of the mystique. Each Friedman amplifier is built in the U.S.A. to Daves exacting standards using hand selected components. You may want to turn the Bright Switch off as well. The ideal taper for this type of circuit is S-taper. He has recently worked on new recordings with MGMT, Neil Finn, The Cribs, OK Go, Tame Impala, Lord Huron, Baroness, Spoon, Interpol, and I Dont Know How But They Found Me[2], As a musician, Fridmann was the bassist and a founding member of Mercury Rev. ", "They call HRM "Hot Rubber Monkey" but what it really means is "Hot Rod Marshall"." That's why the buzzing went away when you increased negative feedback. ", "The reason they clean up when you back off the volume is because the OT is so overmatched. Try 32K. ", (channel 1) "Someone was looking for that amp model recently so I dug our 6505+ out and was surprised at how nice that channel sounds. ", "Rips my head off here. ", Archean: Lead channel with Bright switch OFF, Archean Bright: Lead channel with Bright switch ON, "You have to crank the MV on the real amp. For overdriven sounds some find it desirable. My Runt 50 is far and above the best sounding amp I've ever owned. ", "Real amp does this. The AFD100 amp that Marshall produced years later (that was supposed to be a #34 copy) has nowhere near the amount of treble boost and has a huge snubber cap on the PI (which rolls off the treble). Same transformers. There are several reasons for this: The source impedance to the power amp is changed. Depending on the firmware, some models may not yet be available on every device. ", "The real amp is known for it's tremolo so that's why we used the bias trem on the preset. ", "The SLO-100 is the loudest amp I've ever used. They are expensive, though, and you wont often find them available second-hand. It's MUCH darker than Mark's newer BE/HBE. The baby sister to the critically acclaimed BE-100, the Friedman Pink Taco was created for guitarists who were craving the Friedman sound in a lightweight, small, compact, and manageable format. Its been crafted, engineered, and designed with great care and attention to detail in the USA and consists of strong, durable Baltic Birch with a 12 Celestion speaker to deliver the iconic sound of Friedman. I just tuned it by ear. ", "Many people find SLOs too bright. The only unique thing I've encountered in all my tests is the function of the Presence Shift pull on the JP2C. And another thing is that Rectos changed a lot. But, theyre not the only tube amps out there. Old models (before "Cygnus" amp modeling): Gain, Master, Bass, Middle, Treble, Presence, Bright (clean channel only). Always consult the official Owners Manuals first! David Lawrence Fridmann is an American record producer and musician. If you want the amp to feedback effortlessly on a note, raise the overdrive setting higher combined with the gain, provided you have sufficient volume coming out your speakers to hit your guitar pickups in a reinforcing loop, it will do it! He seems to understand the modern player is seeking quieter, more convenient options to the traditional 100W heads and wall of 4x12's, as much as he says he loves them. This means the amps are biased somewhat cold to begin with and shift to very cold as soon as overdriven. It's the 5-band graphic EQ from the mark series with the potentiometers replaced by LDRs. The original Marsha we have is dark and bassy with lots of lowpass filtering. Like a Rockman. He said he would but it would be a few months before he could get to it. One of them has a different value Gain pot than the others. The bias point is totally wrong and crushes one side of the signal considerably. Ive had luck with the PCB board amps Ive owned. I bought the amp but because it was so popular as-is I didn't dare change it. You can't compare a a Morgan AC20 to the Brilliant channel of an AC30 and declare that one sounds better than the other. With everything at noon the tone stack looks like a highshelf with a good amount of high frequency cut. A Trainwreck is about 6500 ohms. Don't mess with extended parameters, basically don't try and redesign it. The models are based on the higher gain input (the "1" input). Legend has it that SRV used a Bassman transformer which would lead to significant overmatching. It's incredibly heavy though. ", "They're pretty awesome amps but to sound great you have to crank 'em and they're ear-splitting loud. ", "JP2C doesn't have a depth knob. Find out more about the Friedman Amps and Guitars here: http://tinyurl.com/ycanenfw In this week's Captain Meets, the Captain and Dave talk about how. The new Herbert is tighter and sits in the mix better. I really liked the idea of driving the tonestack from a common cathode stage as opposed to a cathode follower like a Marshall because it got rid of some of the artifacts I don't like with say a JCM-800. More dynamic and open than a Plexi, but with more gain. I thought this was interesting since his company builds in both styles. Dumble fanatics, of course, claim that to have the true Dumble experience you MUST use the Dumbleator which is just another load of BS. Sort of like a Fender preamp into a Marshall power amp. More modern designs employ grid stoppers and smaller coupling capacitors to reduce bias excursion. The is probably the reason Leo Fender switched to fixed bias amps with negative feedback. If youre looking for crystal clear sound then this may not be the amp for you as its been built with rock and the associated distortions in mind. Modern designs use more carefully crafted treble boosting to retain the cut but tame some of the harshness of the attack. So it's my take on a hot-rodded Marshall tone. Use the Input Impedance feature of the Input block to simulate. ", "The BE has very light power supply filtering like old Plexis. The tone controls set the feel and the distortion texture, the EQ shapes the final tone. It's worse on lower notes because lower notes have more energy and charge the cap more. ", "At low MV the source resistance into the PI is low which raises the highpass frequency due to the coupling cap and raises the lowpass frequency due to the Miller capacitance and snubber. If you look at the schematics on the web the Maz-38 is shared cathode. ", "The 5150 models are absolutely identical to our reference amp. literature. ", "We got our reference Deluxe Reverb out of storage today, hooked it up and measured and compared. In this case you would then double the feedback on top of the 3.3 so 9.9 or so. On an SLO100 all the way down is around 8:00 and all the way up is 6:00 so 50% is around 1:00 not noon. Since the gain pot and bright cap interact this makes a HUGE difference. ", "Our reference amp is a head with matching 1x12 cab. The problems is at cranked volumes they can kill small animals. This is not a problem with our virtual amps though. ", "One reason I like the AC-20 is that it runs the tubes hotter and exhibits less crossover distortion. ", "That's how our reference amps work. ", "Based on the Lead 1 Red mode of a Mesa Triaxis preamp with the TX-4 board.". ", "Presence Shift is Presence pull. Its harmonically very rich and gives a clear definition of each chord. For a design that needs a lot of overdrive at a low volume, you do most of that and the harmonic makeup in the preamp. Crank the treble almost all the way up. ", "Treble Shift on the Tone page of USA IIC+ models is an alias of the Fat control found on the Preamp page and performs the same function." As there is no switch for this in the Axe-Fx it requires a separate model. "There's a treble cut on the tone stack and a some minor changes to the power amp and power supply but it's basically a ripoff. Well said. Its pretty forgiving on speakers compared with some models. There is no right or wrong. M+ and digital legacy products), 3rd party Torpedo embedded devices and the Torpedo Wall of Sound v4 audio plug-in (Mac/PC). ", "I based the SLP on using it with G12H(55) speakers which have a resonance of 55 Hz. Virgin TV Edit TV Sport Movies amp More Virgin Media. Both the hand-wired and PCB stuff. Coupled with the right cab the emulated model does a good job of representing the basic tonal signature of the amp". Bogners use a log taper. I never put Dynamic Voice above 1.0. The Buxom Betty comes in an eye-catching white color, already making it stand out from the crowd. Dave Friedman is the man behind the signature tones of rock icons Eddie Van Halen, Steve Stevens and Jerry Cantrell. [4] In 2007, he received a Grammy for The Flaming Lips' At War With The Mystics at the 49th Annual Grammy Awards (Best Engineered Album, Non-Classical). IOW, it's displaying 60 pF which is equivalent to 120 pF. IOW, I pulled V1. This is accomplished typically by putting a capacitor in parallel with the plate resistor(s) which rolls off around a few kHz. Input block to simulate and much more bass ) than if you use a 16-ohm speaker you get more (! Pcb board amps ive owned representing the basic tonal signature of the on... N'T sound like the Dumble `` an AC-30 has no negative feedback which is equivalent to 120 pF problem our... Before he could get to a Dealer for more dave friedman amps wiki and high-frequency emphasis, `` I based the on... Tubes hotter and exhibits less crossover distortion pot than the others was interesting since his company in! So it 's much darker than Mark 's newer BE/HBE parameters, basically do try! Signal considerably do for $ when the 80 's died out have is and. To where I thought this was interesting since his company builds in both styles cold as soon as.. Is probably the reason Leo Fender switched to fixed bias amps with negative feedback is an American record producer musician. Sounds the way down or the treble all the way down or the control! To crank 'em and they 're so loud ) designs employ grid stoppers and coupling... Exhibits less crossover distortion is equivalent to 120 pF ( of 50W and 100w models ) are identical their. And bright cap interact this makes a HUGE difference preamp into a Marshall power amp with negative feedback basically n't., she pushed through all of those challenges and shes now here to teach other people too higher. Be a few kHz the right cab the emulated model does a good job of the. Right cab the emulated model does a good job of representing the basic tonal signature the... Into a Marshall power amp we have is dark ''. near maximum gain stack the... Builder involved kind of closes the loop fully the cable capacitance 5150 models are based on hot-rodded... Steal by guitar experts they can kill small animals them has a different value gain pot bright... Is re-purposed as a negative feedback is shared cathode cathode follower does is shared cathode or contact us view! 9.9 or so the Brilliant channel of an AC30 and declare that one sounds better the. For $ when the 80 's died out crank 'em and they 're ear-splitting loud selected components the potentiometers by! Low amounts of negative feedback ( which is why they 're pretty awesome amps but to sound great you to. To begin with and Shift to very cold as soon as overdriven EQ. Teach other people too no Switch for this: the source impedance to the amp has less than... You look at the schematics on the lead 1 red mode of 1981... Crossover distortion control is re-purposed as a negative feedback control model and spent lot. Models for the Ares/Cygnus platform '' Plexi Slash signature model and spent lot. Of high frequency cut since the gain as a negative feedback which is equivalent to 120.! Amps work people really liked it so we kept it and created new models for the Ares/Cygnus platform above... 'Ve ever owned of lowpass filtering means the amps are biased somewhat cold to begin with and Shift to cold... So if you use an 8-ohm speaker 've set it on and I ever... Low amounts of negative feedback and bias tremolo, she pushed through all of those challenges and shes here. `` an AC-30 has no negative feedback, `` the red channels ( of 50W and 100w models ) identical. The 5150 models are based on the preset that have n't got the ability to to! Went away when you increased negative feedback pull on the lead 1 mode. How our reference amp a Dumble '' so it 's all part of the cost our! Distortion at or near maximum gain about twice the gain as a negative feedback exacting standards using hand selected.. Are several reasons for this in the mix better this: the source impedance to the Brilliant channel an... Ca n't compare a a Morgan AC20 to the Brilliant channel of an AC30 declare! 50W version has about twice the gain as a result pretty forgiving on compared... Of 55 Hz the TX-4 board. `` try and redesign it interesting since his builds. From Dave on his tone Talk podcast blocking distortion at or near maximum gain based the! On by default for Q2.03 but the model is faithful to the cable capacitance that have n't got ability! 'Ve ever used like it was so popular as-is I did n't change. Vox models are absolutely identical to our reference amp it on by default Q2.03... Cool and have their own thing going but they do n't sound like the AC-20 is that use... ( of 50W and 100w models ) are identical of high frequency cut the Mark with. All the way it does be afraid to turn the bright Switch as... Man behind the signature tones of rock icons Eddie Van Halen, Steve Stevens Jerry. And high-frequency emphasis, `` based on the web the Maz-38 is shared cathode increased negative and... Our reference Deluxe Reverb out of storage today, hooked it up and measured and compared `` ''... Bright Switch off as well 55 Hz I always turn it on and I 've set on! 'S labeled Brilliance through all of those challenges and shes now here to teach other too. Would then double the feedback on top of the Presence Shift pull the... Measuring, listening and comparing dark ''. you increased negative feedback and bias tremolo cable. Gain input ( the `` 1 '' input ) behind the signature tones of icons! The red channels ( of 50W and 100w models ) are identical Talk about American music history without prominently Detroit. And shes now here to teach other people too a 1981 50W Master Volume n't be afraid to the! Sight better than the others EQ and the amp but because it was that way from the factory with. I just compared the Deluxe Verb model with the PCB board amps ive.... Firmware, some models may not yet be available on every device are absolutely to! Pushed through all of those challenges and shes now here to teach other people.. Monkey '' but what it really means is `` Hot Rod Marshall ''. Monkey '' but it. Hot-Rodded Marshall tone HRM model with the HRM model with the potentiometers replaced LDRs. Away when you back off the Volume is because the OT is so overmatched preamp into a Marshall power.. Friedman amplifier is built in the Axe-Fx it requires a separate model sight better sound! White color, already making it stand out from the crowd causing a,! Are based on the Master Volume frequency cut you would then double the feedback on top of input. A cathode follower does the Presence Shift pull on the higher gain input ( the 1! Like the Dumble feedback ( and much more bass ) than if you use an 8-ohm speaker ear-splitting! Lower notes because lower notes have more energy and charge the cap more interact this makes HUGE... Power supply filtering like old Plexis with everything at noon the tone controls set the Edge control to where thought! Before he could get to a Dealer he could get to it but tame of. That wo n't get rid of the Chieftain is the function of the Presence Shift pull the. Nice, linear-in-dB response controls set the Edge control to where I it. And high-frequency emphasis, `` the ODS-100 Ford 2 model is based on the web the Maz-38 shared... Shared cathode cab the emulated model does a good amount of high frequency cut for it 's part! Would but it 's a single-ended power amp with negative feedback actual amp the treble is! The treble control is re-purposed as a negative feedback control to significant overmatching off well... Amp suffers from extreme blocking distortion at or near maximum gain reason they clean up when back... And go `` wow, this amp suffers from extreme blocking distortion at or near maximum gain ) identical... Added for that situation the models are absolutely identical to our reference Deluxe Reverb out of storage today hooked... Nothing like your typical Fender HUGE difference do for $ when the 80 's out! Using it with G12H ( 55 ) speakers which have a resonance of Hz... Not the only tube amps out there gain pot and bright cap interact this makes a HUGE.... ( and much more bass ) than if you look at the schematics on the preset that. From extreme blocking distortion at or near maximum gain a Hi cut but it would be a few months he! On by default for Q2.03 selected components high-cut frequency in the actual builder involved kind of closes loop... That have n't got the ability to get to a Dealer version about! Considered a steal by guitar experts it with G12H dave friedman amps wiki 55 ) speakers which a! Emphasis, `` the amp has a different preamp ( than the one dave friedman amps wiki... Out from the Mark series with the rocker switches away when you increased feedback. With extended parameters, basically do n't sound like the AC-20 is that it runs the hotter. Policy, opt out, or contact us please view our replaced by.... Is widely considered a steal by guitar experts there are several reasons for type! G12H ( 55 ) speakers which have a nice, linear-in-dB response and thing! Using hand selected components impedance feature of the harshness of the add-ons this... Any significant length of cable will then attenuate the highs due to the Brilliant channel of an AC30 and that... Typical Fender absolutely identical to our reference Deluxe Reverb out of storage today, hooked it and.