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Each amp channel includes dedicated Gain and Volume controls, as well as Bass, Mid, and Treble EQ knobs. The EQ was a tad subtle for my taste and, in general, I found myself wanting more control over the frequency spectrum. Like many Fender amps, the G1 includes a Bright switch, and I found it very helpful due to the amp’s somewhat dark voicing.
My favorite part of the G1 is the complex and unique preamp voicing provided by the 1U4 pentode preamp tubes. This is where Grid 1’s engineers show their skills. When overdriven, these tubes have a soft, fuzz-like quality in the higher frequencies and a robust growl in the low end. The sound is not exactly like any other overdrive I’ve heard, and it totally works.
Though the 1U4 tubes provide the basis of the amp’s distinctive tone, Grid 1 chose them primarily for practicality. First used in the 1940s and ’50s in battery-powered radios, these tubes require little current and therefore conserve juice. When driven hard, they produce unique upper harmonics. And with the gain dimed on the overdrive channel, you can clearly hear the characteristic screeches and squeals of electricity traveling through a vacuum tube. Pick harmonics sound sharp and clear, giving every stroke a decisive attack. I found the G1 capable of blues, jazz, and rock, though not metal, and the tone remained the same whether it was plugged into its AC wall adapter or running on battery power.
The Final Mojo
It’s no surprise that the G1’s digital power section doesn’t really provide any sonic enhancements. So guitarists who require a tube power section should look elsewhere. But it shouldn’t all just be about tubes. The real burning question is whether a battery-powered amp with a tube preamp and a digital power section can give you pleasing, usable tones. And there are two answers, one for people who need a battery-powered amp and one for those who don’t.
If you have access to power, the Grid 1 may or may not be tonally compelling—it’ll just depend on your willingness to break with some traditions. But the battery does keep you disconnected from the grid and all the wonderful spikes and breaker problems that every gigging musician has endured at some point.
If you have situations where you could really use a battery-powered amp, then the G1’s open-back design will radiate plenty of volume with more than enough headroom in all directions—which is particularly important if you’re gigging outside or in other atypical venues. It tastefully executes blues, jazz, and other genres where the heavy lifting of a tube power section is not essential to the sound. I wouldn’t choose the G1 for recording hard-rock tones in the studio, but I believe it would perform capably in live hard-rock settings.
Considering that presently no battery-powered guitar amps come equipped with power tubes, I believe the G1 offers the best battery-powered tone you’re going to find, hands down.
you want to boldly play where no other electric guitarist has played before.
you’re dead set on a valve-only amp or you want an amp for studio recording.
MSRP $1795 - Grid 1 - grid1.com