New Borrowed Mesa Fillmore 50 Day!!!!

Its all about the mids for me. I like a very tight, well defined low end but I do not want it to be too prominent. I don't like the sound of the guitar and bass walking over each other in the same frequencies, especially when they are playing very different things at the same time. I guess if it was just Judas Priest or AC/DC covers they could complement, but that approach gets too messy for me for the kind of more proggy stuff that I actually play - the bass knob on my amps lives around 9-10 o'clock. With the Mark it'll get bumped up a bit if I engage the EQ, but not significantly.
 
Its all about the mids for me. I like a very tight, well defined low end but I do not want it to be too prominent. I don't like the sound of the guitar and bass walking over each other in the same frequencies, especially when they are playing very different things at the same time. I guess if it was just Judas Priest or AC/DC covers they could complement, but that approach gets too messy for me for the kind of more proggy stuff that I actually play - the bass knob on my amps lives around 9-10 o'clock. With the Mark it'll get bumped up a bit if I engage the EQ, but not significantly.

I agree with you 100%. Mids are super important. My mids are almost always cranked.

I prefer a bass guitar to be bass heavy. But, I've had to accept that most of the bassists I work with are way up in the midrange. It's almost a kind of "funk-esque twang/boink" to their tone and I have no idea why so many bass players seem to want that kind of tone.
 
I prefer a bass guitar to be bass heavy. But, I've had to accept that most of the bassists I work with are way up in the midrange. It's almost a kind of "funk-esque twang/boink" to their tone and I have no idea why so many bass players seem to want that kind of tone.
Probably cuz these bass players are trying to compete with with bass heavy guitar players... :whistle:

That would go nicely together with this! View attachment 76989
If I had this, I probably wouldn't play on the strings... :whistle: :whistle:
 
First and foremost, I want to thank and honor @Don O for his kindness and generosity in allowing me to perform a long term road-test of the Mesa Fillmore 50 Combo.

The quality of the build, and attention to detail, really is unparalleled...as one would expect in a $1,800.00 amplifier.

Takeaways:

The cleans are simply fabulous and the reverb is very rich and broad. It rivals any Blackface or Princeton in this regard.

The gain channels 'Drive' and 'High' both produce adequate gain structure for most players.

'Drive' has a slight volume drop when switching from the 'Hi' setting. You can hear that this is classic Jose Zener Diode Clipping at work.

At relatively high gain, you can get a good 'classic rock' tone for most song covers. Flat out, the best you can get in terms of gain structure is an AC/DC type of attack. Beyond this, you'll need a boost like the TS-9...but even when being hammered with a TS-9, your best gain texture will be Ala Leslie West on Mississippi Queen.

This is not a negative quality in the least, but it just doesn't afford the harder, edgier and tight speaker-thumping low end, coupled with a searing midrange overtone that a Marshall can seemingly deliver without maxxing-out the controls. Quite honestly, I do not think it (the Mesa Fillmore) was designed to do that.

The amp's tone controls are very unusual.

First, you must understand that as you increase the gain, the amp's circuitry rolls off bass, so the louder you push the amp, the thinner your tone becomes and above about 12 Noon, the bass knob really seems to be completely out of play.

Mids too are another strange thing in terms of function.

So, while playing recently, I noticed I was a little low in the mix, so my instinct is not to increase volume, but bump the mids.

If you dial up more mids, nothing happens, even with the mid control dimed-out.

Instead, you need to roll off the bass and the high EQ controls to begin to hear the mids start emerging.

If you need more treble, increasing the treble EQ doesn't produce a sonically pleasing tone. It gets thin and bright fast and it's very prone to squeal at high treble levels (the manual warns of this) because increasing treble also increases gain and simultaneously reduces mids and bass frequencies.

Mesa manual says to use presence instead of treble to deliver a higher top-end edge without increasing gain. The manual also says that great tones can be had with the treble EQ all the way to zero, because they designed the amp to be biased towards the upper end of the tonal spectrum.

They aren't kidding. With treble at zero, the amp still had plenty of top end.

This was confusing to me and took extra time to adjust to this learning curve in a live band setting. No doubt this could eventually become engrained with practice.

The Fillmore is plenty loud, but I could not dial in a percussive thump no matter what settings I dialed in.

Now, with respect to the controls and how they influence your tone. Huge dial position changes by themselves produce very little change sonically. Each tone control seems to influence the others to some degree. So, for example, to get more bass, you turn down treble and gain. For more high end, you turn down bass and mids, then increase presence.

In comparison to tonal changes vs. dial range of motion, the Mesa will give you a teacup full of gain at '10' and my Ivanberg Modded ORI50 or a JCM800 2204 will give you a two litre soda bottle full. The same is true for the reactivity of the tone EQ's. The Mesa Fillmore's controls are very, very subtle in their influence on your tone.

So, where does the Mesa Fillmore shine???

It's light. At only 44 pounds, it fits easy into my trunk. Ding! Ding! Ding!

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For a guy playing a wide range of covers, the heaviest of which is likely Ram Jam's Ol' Black Betty, the Fillmore would be stellar. The Fillmore can nail Bill Bartlett's tone on that song perfectly, buut that's about ALL you will get from the amp alone.

A country picker would also love the Fillmore, as would a jazz player. It would be a great session amplifier too, but considering that most pro sessions are using amp simulations, like Blue Cat Destructor and Avid Eleven Mk II, I'm not sure it offers you more than the simulation can.

For the tone that I hear in my head??? Only ONE amp has ever truly delivered it WITHOUT pedals...@Don O's 1997 Marshall 8280 2x12 Bi-Chorus Combo or the 8200 Bi-Chorus Stereo Head. I found the tone from the 8280/8200 even better than from the Engl Fireball and Engl Marty Friendmann Inferno WITHOUT a clean boost.

I've gotten "honorable mention tone" from a JCM800 2204 with an extra gain stage and my full pedalboard and also from my pair of ECC823 equipped DSL40C's with an Electro-Harmonix 12VR75 speaker, but in both cases, it was little better than an acceptable compromise. It never, ever was a tone that I loved. But, I could get by with it.

Now, fast forward to last Saturday night's performance. Pressed for time and space in my wife's car with our daughter riding shotgun, I minimized and took my 1999 Marshall MG50 Solid State 1x12" Reverb Combo, a footswitch and my Les Paul 50's Standard Gold Top. No FX at all and my amp was mic'd for the performance.

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I felt like I totally smoked our performance in terms of playing and tone. Everyone had very positive things about our energy. I also fielded a lot of post-performance questions about my setup. I also played half of our set dead-clean on the "Green Channel."

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A very good musical friend (and Grammy nominated L.A. producer) was in attendance. Without telling him I was running a Solid State amp, I texted him and asked him his perceptions of my tone, based on the performance he attended.

Here's the message I received:

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I can play through tube amps anytime I want, and sometimes I do, both live and in the studio. Here's a recent pic from a private "locked out" session at rat's Nest Studios:

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So, you cannot, in all honesty, say that my preference for SS tone is because I've never played through a "good" tube amp. I could start naming McIntosh, Hellwin, Butcher, Dumble ODS and all the other, Holy Grail amps that I've played through to quantify my experience, but let's agree to set those ideologies, prejudices, brand loyalty and biases aside.

For me, to get a tight focused low end with a searing midrange and pronounced, yet controlled high end frequency, I have to hit a tube amp with a TS-9, full gain, exploitation of ALL tone controls, including (2) GE-7's, the tone knobs on my CS-3 Compressor and TS-9 Tube Screamer, and the (2) Hi/Lo Pass tone controls on my CE-5 Chorus.

In summary, I've pretty much created a solid state, square-wave signal, which a good SS amp can deliver with fewer pedals.

I'm familiar with Marshall style tone controls, so I'm likely gonna stick with Marshall from here on out.

Ultimately, I want a Marshall 8200 Bi-Chorus Stereo Head or a 8280 2x12 Bi-Chorus Stereo Combo, but rather than buy some of the "junkers" I've found recently, that need to be recovered and may need internal repairs, I'm going to run with a forum member's, two-year old, owned since new MG100HFX.

This amp will allow me to replace/eliminate my Blackstar ID-Core 100watt as my primary DAW interface. It will reduce my "pedal dependency" from 12 FX to only 7 (Wah, Tuner, Comp, FX Loop Volume Pedal, (1) solo boost EQ delay and noise gate, and shrink my pedalboard from 34" to only 24" in overall length.

I'm still keeping an eye out for a nice 8200 Bi-Chorus Stereo Head, but it may take quite some time to find one that hasn't been beat up.

Notwithstanding, I pretty pleased with the direction things are going!!!

Merry Christmas!!!!
 
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With the move to Solid State, I will quite likely donate the Ivanberg Modded Origin 50 to our local Rockstars Music Academy. If this transpires, It will be an instructor's amp and student's will also be able to play through it during their course of instruction. They can also "sign it out" for performances put on by the academy, whereas the academy will transport it to and from their performance locations.

I've also considered selling it outright, but, TBTH, the true value of the amp would be hard to put a price tag on.

Just to give you an idea of how GOOD this hot-rodded Origin is - which was painstakingly modded as a joint venture between our esteemed amp DemiGods @syscokid and @ivan H - let me put this into perspective.

Thus far, I have turned down $1,000 and a Marshall SVH-20 Mk II in trade for it.

I've turned down a Gibson les Paul Lightweight/Thinbody in trade for it.

I've turned down several amps in trade for it, including an All Tube Blackstar Stage 60 Combo and a Schecter Hellwin 100 watt Tube Head.

I turned down $800.00 and a DSL40 Head Conversion (in a polished mahogany Asher Custom Head Cabinet) for it.

I'm not saying this because I am some sort of "snob," TBTH, I simply cannot justify adding anymore gear to my tiny workspace here at home.

Right now, the Ivanberg is officially "on loan" to Rat's Nest Studios where it has officially replaced the (now up for sale) Extra Gain Stage/FX Loop Modded 1987 Marshall JCM 800/2204, Serial #05174R) as the "House Amplifier.

The engineer at Rat's Nest told me, "Dude, the Ivanberg kills the JCM800. No matter how you set it up, no matter what you put on the floor in front of it, the Ivanberg sounds bigger, fuller and louder than the JCM800...."

@syscokid can attest to not only how LOUD the Ivanberg Modded Origin 50 is, but how much more reactive the tone and volume controls are, compared to an average tube amplifier.

Kudos to @syscokid and @ivan H for their expertise in making this amplifier something truly unique and desirable!!!!

I am told via text that it's currently "In Session" as we type at 7:23am PST today!!!!!
 
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'Drive' has a slight volume drop when switching from the 'Hi' setting. You can hear that this is classic Jose Zener Diode Clipping at work.

You know, not that it matters but I don't think this is correct. Mesa amps generate all their distortion using cascading tube gain. There are diodes in there but they are not used for clipping. Its why the amps have so many preamp tubes.

I've also found that It's pretty common for the Mesa amps to have different volumes when switching between modes.
 
You know, not that it matters but I don't think this is correct. Mesa amps generate all their distortion using cascading tube gain. There are diodes in there but they are not used for clipping. Its why the amps have so many preamp tubes.

I've also found that It's pretty common for the Mesa amps to have different volumes when switching between modes.

Yeah, I can’t say with 100% certainty, but I think the very idea of using clipping diodes would be tantamount to a sacrilege at Mesa.
 
You know, not that it matters but I don't think this is correct. Mesa amps generate all their distortion using cascading tube gain. There are diodes in there but they are not used for clipping. Its why the amps have so many preamp tubes.

I've also found that It's pretty common for the Mesa amps to have different volumes when switching between modes.

The behavior and tonal "coloration" in "Drive" mode reacts exactly like my Ivanberg Origin when the 25 volt Nose asymmetrical clipping is engaged, so my comment is based on that particular characteistic.

Here's what Mesa tech support said when asked if they used Jose-esque diode clipping:

"The Fillmore circuitry is unique in many respects and I'm not at liberty to discuss that. Mesas generally and historically use diodes for rectification and the filament supply is also rectified to DC for the relays and V1, and they also have diodes in parallel with the relays for spike suppression..."
 
Yeah, I can’t say with 100% certainty, but I think the very idea of using clipping diodes would be tantamount to a sacrilege at Mesa.

See post above...

I'm not sure, but all I can say is that the behavior of the "Drive" channel with respect to the "Hi" channel has all the same tonal characteristics of my Origin 50H in asymmetrical Jose clipping mode.

It's possible that they are getting there somehow differently, bit it's the exact same sonic effect.
 
The behavior and tonal "coloration" in "Drive" mode reacts exactly like my Ivanberg Origin when the 25 volt Nose asymmetrical clipping is engaged, so my comment is based on that particular characteistic.

Here's what Mesa tech support said when asked if they used Jose-esque diode clipping:

"The Fillmore circuitry is unique in many respects and I'm not at liberty to discuss that. Mesas generally and historically use diodes for rectification and the filament supply is also rectified to DC for the relays and V1, and they also have diodes in parallel with the relays for spike suppression..."

Right. If you pop the hood there are a bunch of diodes in there, but they are not used for clipping. I have no reason to believe they would have given up such an essential part of their historic signal-path designs for the Fillmores.
 
Right. If you pop the hood there are a bunch of diodes in there, but they are not used for clipping. I have no reason to believe they would have given up such an essential part of their historic signal-path designs for the Fillmores.

I would tend to agree with you. I'd love to see a schematic nonetheless.

Of course, I've never messed with it, looked inside it or anything like that. In fact, I haven't even broken the seal on the cover or owner's documents, or removed the build tags.
 
Right. If you pop the hood there are a bunch of diodes in there, but they are not used for clipping. I have no reason to believe they would have given up such an essential part of their historic signal-path designs for the Fillmores.

Here's a comment from The Gear Page by a Mesa user regarding the Fillmore:

"Of course this is a first blush impression but I usually struggle with amps off the bat. This amp is so much better for me than my mark V because it's very easy to dial in and the dials react like a classic amp. Also it sounds better at low volume also because you can get the master up easier, which surprised me about the mark. Of course the gain character is way different though.

Finally it is not an amp for high volume live applications (duh). But it's really fun for someone like me to get great overdriven tube tones in my basement. Live I will mic it anyway...."
 
And Mesa fans prefer to use Jose Diode Square-Wave Clipping with a TS-9 to "tighten" things up???

I do. Not sure I would necessarily say to "tighten" things up so much as push the front of the preamp to distort it slightly; the Mark 5 is plenty tight and percussive all on its own.
I use it more as a clean boost, with the Drive knob almost all the way down and the level way up, and I like the added depth I get just by giving that little goose to V1.

Pretty sure the TS and similar use opamp/chip clipping not diodes, but again, not that it makes much difference. And I don't have any problems with diode clipping per se, just pointing out that Mesa doesn't use it for clarity.
 
Here's a comment from The Gear Page by a Mesa user regarding the Fillmore:

"Of course this is a first blush impression but I usually struggle with amps off the bat. This amp is so much better for me than my mark V because it's very easy to dial in and the dials react like a classic amp. Also it sounds better at low volume also because you can get the master up easier, which surprised me about the mark. Of course the gain character is way different though.

Finally it is not an amp for high volume live applications (duh). But it's really fun for someone like me to get great overdriven tube tones in my basement. Live I will mic it anyway...."

I will concur that the Marks are pretty difficult to learn how to use, but once you do you can get any sound imaginable out of them.
 
See post above...

I'm not sure, but all I can say is that the behavior of the "Drive" channel with respect to the "Hi" channel has all the same tonal characteristics of my Origin 50H in asymmetrical Jose clipping mode.

It's possible that they are getting there somehow differently, bit it's the exact same sonic effect.

Right!

It helps to understand why diode clipping was started in the first place, though. It was invented to provide a cheap, compact, easily-manufactured means of duplicating the clipping that occurs in amplifier stages - without all the amplifier stages!

So, it only makes sense that you’d hear something in the Mesa that sounds like the Clipping Mod. There are other clipping mods, but they all have the same goal: to sound like an overdriven amplifier, with varying degrees of saturation. If anything, it points to the Jose Diode Clipping mod as being pretty good!
 
Pretty sure the TS and similar use opamp/chip clipping not diodes, but again, not that it makes much difference. And I don't have any problems with diode clipping per se, just pointing out that Mesa doesn't use it for clarity.

I think you’re right. There is a whole cult following of certain opamps within the Tubscreamer aficionado community. I replaced the opamp in my TS-9 with one of the holy grail opamps when I bought it, but I don’t even remember what it was!
 
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