TotallyRadGuitars
Well-known member
I don't love these kind of generalizations. I'd call the Retro 50 pretty dark, but the Savage is very bright. I definitely would NOT call the Fireball or Powerball bright amps, maybe the treble is more cutting but they aren't bright amps in the same sense that a JCM800 is "bright." Brightness is usually heard as an upper mids spike around 3khz, which is lower than what I mean when I say "treble," so it might just be a terminology thing.And what are engls? Dark? Not even close. They are extremely bright amps. The 5150 is full of low midrange, not high midrange like the engls. The Diezel gets stomped because of its eq curve. That’s not the problem with Engl amps, as stated before they have a shitonnnn of midrange in most of their amps. And as stated just above me, the recto absolutely smokes any Engl I’ve ever heard in a mix, by a mile: it’s a pretty bass heavy and scooped amp.
I don't consider a recto a really scooped amp, at least not the way you usually hear it recorded. I mean, anyone can turn the mids on an amp to zero and make it sound scooped but a recto is not any more naturally scooped than lots of other amps. If you record a DI and run it through both a recto and something else, with the EQ's at noon, and normalize for volume (using software, not your fallible ears), a recto has very strong mids at the same loudness. It just also has boosted bass and highs too, but it's not like a recto has "less" mids than other amps.
I'm considering the purchase of a Fireball 100 and stumbled upon this thread via Google... I've been wondering how similar the Powerball really is as I'd like to be able to run a decent crunch that cleans up with the volume knob and the Powerball seems as though it'd be better at that since it has more range on its Crunch gain than the Fireball does on the Clean. I found schematics for each of them (Fireball here and Powerball II here) and might take a look at them later to see if there are any obvious differences. I know that everybody says that the Fireball sounds "rawer", "more open", etc. but an quantitative evaluation of the two circuits might help to close the gap for those of us that don't have both next to each other for comparison.
I say all this to say that if anybody who isn't a total hack (e.g. me) when it comes to electronics wants to take a look in the meantime and report back on the circuits' differences I think it'd be super helpful to the conversation.
Howdy, that schematic is for the Powerball I, not the II. You can tell by the 2-channel 2-mode configuration, as opposed to having 4 separate gain controls.
Speaking strictly on the lead channels, they are both 4 gain stage designs with nearly identical topology and bias values. The biggest differences are in the EQ and the Powerball which has a "Lead Lo" and "Lead Hi" mode, which you'll mostly hear via a switch situated between the 2nd and 3rd gain stages (when in Hi, more gain available through those stages, as the name implies). If I had to guess that 4th gain stage is mostly just adding compression and not a lot of what we guitar players would feel as "gainy."
The next really big difference is the EQ. the Powerball has two mids controls ("Open" and "Focused"), and the values elsewhere in the EQ section are slightly different than the Fireball, probably because the Powerball has a separate EQ section for the clean/crunch channel. The Mids on the Fireball 100 has a 68nf cap, the Fireball 60 schematic has a 47nf in the same spot, but the Powerball has two, a 22nf and a 100nf (so either extreme around the fireball). Lower value is brighter/wider or more "open."
Clean channels are both 3 stages, the Powerball again has a switch which allows more gain through between stages 2 and 3 similar to the way lead 1/2 work. The most notable difference here is that the Powerball has a completely separate EQ section with different values for the clean/crunch channels, whereas the Fireball has to compromise with one EQ section using the same values for both clean/lead. The most obvious difference I can see at a glance is the mids control again, which on the Powerball clean has a very bright/open 10nf cap.
Long story short, they are EXTREMELY similar. Basically the same amp, the powerball just has a few extra features tacked on. You're going to get the same core tone on the lead channel from both of them, and even the cleans will be similar. Depending on how you dial the EQ, they can be made to sound close to identical, and if you really cared (and you could find the correct location on the PCB, which is another whole story), you could modify one or two select values on the Powerball to match the EQ of the Fireballs.
I'm too dumb to understand power amps well enough to talk about them in detail yet. Also I might have a Powerball II schematic, I need to check my archive but I'm at work.
*This assessment is just from my point of view as a hobbyist that likes schematics. Sometimes the schematics are wrong. Sometimes I am wrong too!
Cheers and welcome to Rig Talk
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