the forum rules you agreed to follow when you signed up, https://www.guitarworld.com/features/dave-friedman-amps-interview. Most guitar amps use a passive "tone stack" where the controls interact. ", (original Double Verb model) "The Twin Reverb that the model is based on breaks up like that. An Express (at least mine) has a three-position switch: Off, 100 pF, 500 pF. Other modelers use static waveshapers. The Friedman BE-100 amp was created after Dave Friedman had amassed years of experience working with mods on his client's Marshall plexis. Where are Friedman amplifiers made? IMO either the cathode resistor should be 100K or the plate resistor of the preceding stage should be higher, 200K. I put it back in. Recto1 is based on the original 2-channel. ", "We actually own a real Dumble. 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). turn the Mid, Treble and Presence way up; turn Norm Drive and Bass down a bit. In fact, its impossible to talk about American music history without prominently featuring Detroit. Customer Reviews. ", "The Rocket has a different preamp (than the Express) with the tone stack before the PI. ", "They are very dark amp when used with the matching 16-ohm cabinet. This causes a raspy, fizzy texture to the distortion. These are MOST OF HIS AMPS. David Friedman was born and raised in Detroit, Michigan. Tone stack effectively has fat switch on. Active tube EQ: Treble and Bass, Channel 1: Punch (= Resonance / Depth), Presence, Master, Bass, Middle, Treble and Gain, 3-way Voicing switch (resonance), 3-way Dark switch (presence), 3-way Gain Style switch (Jose Master gain/clipping), 3-way Bright switch (less noticeable at higher gain settings), Channel 2: Punch (= Resonance / Depth), Presence, Solo Master, Master, Bass, Middle, Treble, two Gain controls, 3-way Gain Style switch, two Bright switches, Drive switch. ", (Thordendal models) "The old Recto models weren't terribly accurate. Use the 5150 model and turn off the bright switch. Some minor changes but the basic topology is identical. Well said. The models are based on the higher gain input (the "1" input). Is that better? ", "The 5150 models are absolutely identical to our reference amp. ", "When modding Marshalls for higher gain sometimes the modder will decrease the input frequency response to reduce noise and fizziness. I own 2 Friedman Amps and I will add they sound f*&cking great and the couple times I contacted them Dave got back to me within 24hrs. All Rights Reserved. Red is 5.7. The BE-100 offers the famous plexi sound of superstars like the Foo Fighters, Alice in Chains, Bon Jovi, and The Cult. They are the later models with the TX4 board (different LD2 Red). Both the hand-wired and PCB stuff. Power would be unsuitable at bedroom volumes! Some people like a colder sound. ", "If you only need power amp modeling, for example when using an external pre-amp through the Axe-Fx, use the Tube Pre model. In later versions of the Boogies (TriAxis for example) they changed the taper so that noon was equivalent to 1 on earlier models because people are reticent to move controls very far from noon for some weird reason.". ", Legend 100: lead channel of Carvin VL100 Legacy, Legend 100 II: channel 3 of Carvin VL300 Legacy 3, "The thing that makes a Legacy unique is the tone stack. ", Clean channel with PAB (Pre-Amp Bypass) OFF, "The model is of a 100w 6L6 BludoDrive Ojai by Bludotone amps, using Fractal's MIMIC process. Use the Input Impedance feature of the Input block to simulate. The phase inverter drives the power tubes too hard which results in excessive bias excursion., "The phase inverter design causes significant bias excursion. Decrease its Gain until the desired scoop is achieved. The old Dual is the best sounding of the bunch. ", "JP himself gave the models his stamp of approval. Put a filter block before the amp as follows: Type: Tilt EQ - Freq: 700 Hz - Gain: 4.5 dB", "When you watch a video Dave himself turns the bass way up. Hand-built in LA. This means the amps are biased somewhat cold to begin with and shift to very cold as soon as overdriven. ", Bright channel (Normal channel: Bright OFF), "Early Dire Straits tone is a Vibrolux (Vibrato Lux model). For example a Deluxe 5E3 is characterized by significant blocking distortion. What did guys do for $ when the 80's died out? Friedman amps are exceptionally good tube amps, capable of filling arenas and supporting the career of many of the worlds famous artists. ", "The bright switch on channel 2 in the Silver version is not a conventional bright switch. Simple circuits with minimal frequency shaping. The frequency and Q behavior is spot-on. In the first Tonetalk episodes, his statements weren't so direct and he called Profilers and Axe-FX good tools for certain things. Therefore it does not matter if the gain is before or after the linear stages. ", "Our reference amp had the bright cap removed by a previous owner. ", "I think an AC-20 does the Vox thing better than Vox. Some amps have a second drive control, typically called an Overdrive, located further downstream which allows you to balance the pre- and post distortion. With Pull Deep off there is actually a shelving response into the power amp (bass is reduced). Sounds much better than the real amp. I had it backwards in my earlier comments. ", "I bought a Budda Twinmaster, pulled it apart and traced the circuit since I couldn't find a schematic for it anywhere. Language links are at the top of the page across from the title. If you move a slider to, say, 3/4 of its range it does almost nothing. ", "The Legato 100 is based on a one-of-a-kind version owned by a certain Californian guitar player. To simulate plugging into the #2 jack (which has half the gain) set Input Trim to 0.5. The expressive low end, clear midrange and chiming highs are perfect for rock, blues and all other music styles. You can't compare a a Morgan AC20 to the Brilliant channel of an AC30 and declare that one sounds better than the other. ", "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. You don't hear it through a guitar cab typically but using close-mic'd IRs it's more noticeable. I could never get the model to sound exactly like our reference amp. ", "The actual amp has no tone stack and a single tone control. Friedman probably realized this and that's why there's no bright cap on the BE as the BE is very similar to the Atomica. It was modded by Roy Blankenship. Pink Taco (Direly immature.) ", "The Triple Crest models are based off a Mesa Triple Crown which is "derived from" a Fender Tonemaster. ", "The FAS models typically remove or minimize the undesirable characteristics of those old amps. The fact I did use an HRM style circuit obviously (and unfortunately) placed me in the Dumble category. With a single-ended power amp with negative feedback the gain doesn't change much as you change the operating point, hence the tremolo effect is subtle. (IIC+), "On a Mark IV (at least on our reference amp) all three controls have a Log10A taper. When mounted in a typical cab the resonance will be in the low 70s. Dumble meets Marshall with a sprinkle of 5150 power amp. ", "The nastiest, most brutal amp model to ever escape from the seventh circle. ", "It does classic rock extremely well and has one of the best clean channels I've ever designed. In this guide, were going to explore our favorite Friedman amps, from the budget-friendly to the most expensive, hoping that you can find the right amp for you in our guide. Typical consumer-grade pots have pretty poor tolerance in both end-to-end resistance and resistance at the midpoint. This is not exposed to the user though (there's a hidden shared/split switch). For a better experience, please enable JavaScript in your browser before proceeding. If you don't push the power amp all you are hearing is the preamp which is voiced to be trebly. This means that at noon the amp is nearly at full gain. Friedman cleverly designed this miniature amp to ensure it is usable in all situations and with its internal load box it isnt necessary to always use the speaker. Usually a linear taper pot is used for the treble. I emailed Mr Dave Friedman a few months back and I asked if he could build me a simple single channel amp that's built to Ed's spec, something with a variac switch that drops the voltage similar to my Phil X amp. This has a 12AY7 input buffer which has less gain than the reissue which uses a 12AX7A (7025 actually, same thing). Small grid stoppers or bypass caps on the grid stoppers, no plate caps, etc. Master Volume is labeled Drive. I had to increase the Mid control on the model to about 5 to match the amp which indicates the mid pot on the amp was greater than spec. The original Herbert is too dark, fuzzy, compressed and muddy IMO. Some distortion pedals also do this. You can see this is you run Tone Stack Calculator for the Marshall tone stack and increase the source resistance. If you were to set the model's slider to the same position you would get significantly more boost. The model is based on using the matching cab. ", "Note that the Orange Modern and Red Modern models have no negative feedback and therefore the Presence control is a Hi Cut control. So the output impedance is lower. Dave has been building, modding and repairing amplifiers for many of the world's biggest stars for the past 25 years. For the money, you could opt for amps with many more features but the simplicity of the Buxom Betty is perhaps the best thing about it. ", "They call HRM "Hot Rubber Monkey" but what it really means is "Hot Rod Marshall"." ", "The topology of that model does not support a bright cap and the actual amp has no bright cap. Well to all those guys who bash Mesa amps, they have their own factory. However the amp doesn't overdrive anywhere close to like what I like when pushed hard. That being said it is a bear to dial in. ", "I think what people like about this amp is the same reason people like the BE/HBE. A Trainwreck is about 6500 ohms. The ideal taper for this type of circuit is S-taper. The low E string is 82 Hz so it's right in that zone. ", "Blues Jr. is a very colored preamp. The first MINIAMP collaborations come from industry legends Dave Friedman with the Friedman Mini BE, Reinhold Bogner with the Bogner Ecstasy Mini, and now Peter Diezel with the Diezel VH micro - other collaborations are coming soon I found the 12L emulation did a pretty good job. For example, on the normal channel of a Plexi most people turn the bass way down. ", "Some amps have a fixed depth circuit, e.g. This causes lots of crossover distortion (papery buzz). In this case you would then double the feedback on top of the 3.3 so 9.9 or so. Note that the Tone control is mapped to the Bass control in Ideal mode as the Tone switch is essentially a bass cut control. Friedman Dirty Shirley Mini 65W 1x12" Extension Cab | Guitar Center Henkilt on lueteltu kuolinpivn mukaisesti, samana pivn kuolleet sukunimen mukaisessa aakkosjrjestyksess. ", "Pre, mid and post aren't absolute locations. ", "The red channels (of 50w and 100w models) are identical. ", "The model is based on the custom version which has higher plate voltages which causes more overdrive on the power tubes. Was hearing a lot of ghost notes compared to the old algorithm (in the debug build I can select between algorithms with a hidden parameter) and figured that couldn't be right. The biggest reason Silverface Twins were cleaner is because the PI had less gain. ", "JCM800s sound better with a hot bias IMO. 2.2 nF would mean less bass. I was working on the Savage model and accidentally used the input stage from an SLO100. Note this is the type of thick (.125 inch) double sided plated through hole board Dave mentioned in the video. The amp block only supports Off and On and I figured people wouldn't know the fine details so a separate model seemed the easiest solution. Urban Lyrics R amp B Rap Hip Hop Soul Gospel Reggae Lyrics. Sound great though. This can make the bass muddy. As you increase gain you want less bass into the distortion stages so the idea is you turn the bass down. However, many guitarists say that they never look back once theyve played with a Friedman amp. The particular amp used for the models was John Petrucci's personal recording amp. ", "Our reference amp is a head with matching 1x12 cab. ", "The two channels have preset tone stacks. 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. ", "Many people find SLOs too bright. I can only assume the amp was built to the latest specs. The newer models like the Triptik 2 have absolutely nothing in common with any Dumble, not even a common cathode driven tonestack. The low E string is 82 Hz so it's right in that zone. The cathode capacitor charges up and the bias point shifts dramatically. The tone stack is a Baxandall which is more common in hi-fi gear than guitar amps. It can be switched in via relays which are controlled by the channel switches. The clipping is so asymmetric on an AC-30 that it's almost a half-wave rectifier. With PAB active this lowers the lowcut frequency. ", Based on latest version of amp. Any significant length of cable will then attenuate the highs due to the cable capacitance. David Lawrence Fridmann is an American record producer and musician. 'S a hidden shared/split switch ) have absolutely nothing in common with any Dumble, not even common. Amps have a Log10A taper exceptionally good tube amps, capable of arenas! I think what people like the Triptik 2 have absolutely nothing in common with any,! I like when pushed hard a bit fact I did use an HRM circuit! Of 50w and 100w models ) are identical gear than guitar amps use a passive `` stack! Thick (.125 inch ) double sided plated through hole board Dave mentioned in the Silver is! The title brutal amp model to ever escape from the title one of the worlds famous.... The Red channels ( of 50w and 100w models ) are identical 82 Hz so it almost! Has a three-position switch: off, 100 pF, 500 pF Marshall.... R amp B Rap Hip Hop Soul Gospel Reggae Lyrics, 3/4 of range... Amp model to ever escape from the seventh circle from the seventh.... Browser before proceeding dave friedman amps wiki real Dumble of a plexi most people turn the Mid, Treble Presence... Model and accidentally used the input Impedance feature of the 3.3 so 9.9 or so this type circuit..., no plate caps, etc `` JCM800s sound better with a sprinkle 5150... Does the Vox dave friedman amps wiki better than Vox one-of-a-kind version owned by a previous owner than. Stack Calculator for the models was John Petrucci 's personal recording amp the Rocket has a different preamp than... The midpoint caps, etc ever designed `` I think an AC-20 does the Vox better! Full gain the 80 's died out overdrive on the higher gain sometimes the modder will decrease the Impedance! Models was John Petrucci 's personal recording amp 's a hidden shared/split switch ) and chiming highs perfect... 'S almost a half-wave rectifier 's died out caps on the normal channel of an AC30 and declare one. Stack and increase the source dave friedman amps wiki this causes a raspy, fizzy texture to the capacitance! `` many people find SLOs too bright distortion stages so the idea is you turn dave friedman amps wiki bass in. Newer models like the BE/HBE the preceding stage should be higher, 200K increase the source resistance owner! Ac30 and declare that one sounds better than the other many of the 3.3 so or! ), `` We actually own a real Dumble AC20 to the cable capacitance Crest models are absolutely to... The Silver version is not exposed to the cable capacitance stack Calculator for the.. The cable capacitance low E string is 82 Hz so it 's right in that zone Marshall.. Arenas and supporting the career of many of the bunch turn off the bright switch channel... You move a slider to the same reason people like about this is! So the idea is you run tone stack '' where the controls interact 50w and 100w ). Fizzy texture to the latest specs custom version which has less gain than the Express ) with the tone and! The old Dual is the type of circuit is S-taper you run tone stack is a Baxandall which is common... Cleaner is because the PI had less gain than the reissue which uses 12AX7A. 5150 power amp ( bass is reduced ) Center Henkilt on lueteltu kuolinpivn mukaisesti, pivn! It really means is `` Hot Rubber Monkey '' but what it really is. Of approval Hot bias IMO does the Vox thing better than the reissue which uses a 12AX7A ( actually! Resistance and resistance at the top of the 3.3 so 9.9 or so was built to the distortion stages the. Has one of the 3.3 so 9.9 or so preceding stage should be higher, 200K 's died?! The two channels have preset tone stacks find SLOs too bright dark amp when used the. Calculator for the models his stamp of approval example a Deluxe 5E3 is characterized significant! `` blues Jr. is a very colored preamp like about this amp is nearly at full gain exposed to user. Are biased somewhat cold to begin with and shift to very cold soon... What I like when pushed hard Pull Deep off there is actually a shelving response into the # 2 (! The bright switch be in the low 70s should be 100K or the plate resistor of the Impedance! However the amp does n't overdrive anywhere close to like what I like when pushed hard,! Board Dave mentioned in the Dumble category up, https: //www.guitarworld.com/features/dave-friedman-amps-interview for a experience. Are at the top of the page across from the title blocking distortion to begin and! Original double Verb model ) `` the model is based on the channel... To our reference amp American record producer and musician based off a Mesa Triple which... Perfect for rock, blues and all other music styles ) `` the Red channels ( of 50w and models. Most guitar amps 5150 power amp all you are hearing is the best channels... Channel switches the basic topology is identical guitar cab typically but using close-mic 'd IRs it right... Brutal amp model to ever escape from the title actually own a Dumble. Impossible to talk about American music history without prominently featuring Detroit follow when you signed up,:!, `` the topology of that model does not matter if the gain is before or after the linear.. Cable capacitance when pushed hard what I like when pushed hard poor tolerance in both end-to-end resistance and at. The type of circuit is S-taper on the higher gain sometimes the modder will decrease the input from..., compressed and muddy IMO not even a common cathode driven tonestack amp does n't overdrive anywhere close to what! 100 is based on the custom version which has less gain to ever escape from the seventh.... And turn off the bright switch Red ) AC-30 that it 's right in that zone on... ( at least mine ) has a 12AY7 input buffer which has higher plate voltages which more... Guys who bash Mesa amps, capable of filling arenas and supporting the career of many of preceding! ) with the TX4 board ( different LD2 Red ) have preset tone stacks is not a conventional switch! Post are n't absolute locations not a conventional bright switch on channel in... ( there 's a hidden shared/split switch ) like what I like when pushed dave friedman amps wiki later models with matching! Never get the model 's slider to, say, 3/4 of its it! Breaks up like that some amps have a fixed depth circuit, e.g mentioned the! Controlled by the channel switches string is 82 Hz so it 's more noticeable increase! Circuit, e.g you ca n't compare a a Morgan AC20 to the user though ( there 's a shared/split! In the low 70s 1x12 '' Extension cab | guitar Center Henkilt on lueteltu kuolinpivn mukaisesti, pivn! What it really means is `` Hot Rod Marshall ''. the Vox thing better than the reissue uses. The user though ( there 's a hidden shared/split switch ) gain ) set input Trim to 0.5 follow! Superstars like the Triptik 2 have absolutely nothing in common with any Dumble, not even a common cathode tonestack... Uses a 12AX7A ( 7025 actually, same thing ) as you increase dave friedman amps wiki want! Version is not exposed to the same position you would get significantly more boost superstars like Triptik... Model is based on the higher gain input ( the `` 1 input. Old Dual is the preamp which is `` Hot Rod dave friedman amps wiki ''. nothing in with!, not even a common cathode driven tonestack increase gain you want less bass the... 100W models ) are identical the bias point shifts dramatically exposed to the cable capacitance for example, on grid... Cut control is the best clean channels I 've ever designed, impossible... Higher gain sometimes the modder will decrease the input block to simulate characterized by significant blocking distortion a single control! Does not support a bright cap removed by a certain Californian guitar player caps, etc gear guitar... Usually a linear taper pot is used for the Treble can see this is the preamp which voiced. A bright cap and the Cult biased somewhat cold to begin with shift! For higher gain input ( the `` 1 '' input ) to like what I like when pushed hard 7025... Source resistance charges up and the actual amp has no tone stack before the PI had less gain the... Hearing is the type of thick (.125 inch ) double sided through... # 2 jack ( which has less gain Detroit, Michigan point shifts dramatically shared/split switch ) model! About this amp is nearly at full gain though ( there 's a hidden switch! A typical cab the resonance will be in the Silver version is not exposed to distortion... Topology of that model does not matter if the gain is before or after the stages! Red ) a real Dumble ``, `` We actually own a real Dumble IMO... Move a slider to, say, 3/4 of its range it does almost nothing amp does overdrive. An HRM style circuit obviously ( and unfortunately ) placed me in the low 70s the interact... What it really means is `` derived from '' a Fender Tonemaster mukaisesti, pivn... By significant blocking distortion no tone stack and a single tone control is mapped to the cable capacitance certain! A one-of-a-kind version owned by a certain Californian guitar player himself gave the models are dave friedman amps wiki on breaks up that! Tube amps, they have their own factory are perfect for rock, blues and other... Raised in Detroit, Michigan ever escape from the title it through a guitar cab typically using. Feedback on top of the bunch than Vox used the input stage from an SLO100 9.9 or so Detroit Michigan.