The good news: you can fake it for considerably less.
We’re talking about the Vox AC30 amplifier, particularly the Top Boost model. In a field that seems dominated by Fender, Marshall, and Mesa/Boogie (the sort of holy trinity of clean, crunch, and gonzo) and their “inspirations,” Vox amps kind of sit off to the side. Which is funny because if you run an AC30 light, you get the lovely, clear, chimey midrange and sparking treble associated with the amp. Turn it up, and you get a rich, soulful crunch. Crank it over, and you get this fantastic, singing overdrive. The trinity, all in one. And none of it sounds like anything else.
That’s where it gets tricky: what exactly is that Vox sound? You’d think you could nail it by listening to AC30 players, but the amp’s versatility and quirkiness complicates that. This is an amp serving the Beatles, the Shadows, the Stones (in the Decca years), Tom Petty, Peter Buck, Ray Davies, Radiohead (Jonny Greenwood, Ed O’Brien, and Thom Yorke), Matt Bellamy, Dave Grohl, Braid Paisley, Tom Verlaine, the Yardbirds, and Brian May.
If one player serves as a Rosetta stone, it’s The Edge. Famously he’s said to have played a battered, 1964-era AC30 (in a Seventies cabinet) on every U2 album and concert. Not every cut, of course. At this point, The Edge can pretty much own any amp made, and he’s known to use Fender Deluxes, Fender Blues Juniors, Roland JC120s (like that’s a surprise), and a 50-watt Marshall. But, if you say his name to a guitar freak, an AC30 comes to mind. And there’s probably no better example of the classic AC30 sound as “Where the Streets Have No Name.”
There’s the delay, of course—part of The Edge’s signature. I believe he’s playing a Fender Stratocaster: those single-coil pickups add to the chirp. But it wouldn’t have quite the same…shimmer without the Vox. Chime, jangle, ring—whatever you want to call it: it’s more than just a clear treble. There’s a fullness and a warmth to a sound that otherwise could prove piercing. Somewhere, there’s a piano hiding inside that box.
That broad, balanced clarity carries through to AC30 players who run their amps hot. Brian May runs a whole backline of them, and obviously he cranks the hell out of them for that overdriven, “violin-like” sound, but, despite the gain, you can still hear the notes. You have to work pretty hard, slathering on the effects, to blur the AC30’s crystalline qualities (that’s you I’m looking at, Kevin Shields…even though even Shields dirties it up with Marshalls).
And maybe it’s no surprise that “effects” and “AC30” go together: there’s something the amp loves about delays, tremolo, reverb, and other modulation effects. A touch goes a long ways, but the amp holds its sonic fingerprint even…if you’re The Edge.
The amp also weighs about 50 pounds and can get seriously loud—very likely more than you’ll need in smaller venues. So it’s not really the amp for open mic night.
The good news is that the modelers and pedal designers have long had their eyes/ears on the AC30, and digital approximations have been built into many multieffects units—high and low end. Ersatz, perhaps, but it’s a start, and the technology continues to improve.
A better option, especially if you already have a tube amp, is to set it up to run as clean as possible and add a stompbox dedicated to replicating an AC30. Tech 21 make a well-regarded Liverpool box, and similar boxes include: the Martin AC-tone , the Menatone Top Boost in a Can (come on, that’s a great name), the Xotic AC Booster, the Catalinbread CB30 (note: one of many gifted Portland guitar effects companies), and the Joyo AC (which only runs about $40…Joyo’s a whole story in itself).
I’ve actually been pretty impressed with the Boss BC-2 Combo Drive. They seem to have bottled a bit of the AC30 mojo in a unit that rolls from sparkle to roar (with a sweet crunch in the middle), and I think I hear just a bit of compression to add a tube dynamic, because AC30s are known for their responsiveness. It works okay by itself or with a solid state amp, but pair it with a clean, neutral tube amp, and you might find yourself wandering down Abbey Road. For a couple of hours. This video from guitarist Pete Thorn lays it out quite nicely: http://m.youtube.com/watch?v=nJZUU_ZJHzc (Hint: crank it up.)
Plus, you know, it’s hard to toss an AC30 in your gig bag. Your ears may be a little bummed, but your back will thank you.
[You can also find Splattworks at my new site: www.splatterverse.com]
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