1948 Gibson GA-25

ARCHIVED • SOLD

1948 Gibson GA-25

Gibson’s GA-25, introduced in 1947, was their first modern amp of the post-WWII era. It featured a completely new cabinet look with a midcentury modern design, and it was Gibson’s first amplifier to use permanent magnet speakers, rather than the field coil type that were, up to that point, the norm. A 6V6 powered amp designed to yield 15 watts, the GA-25 was built with a 12” and an 8” speaker, which allowed it of offer better high-end response than a 1x12” amp while maintaining that 12” bass capability.

This example is completely original but for recent basic servicing that included fuse and grounding work, new AC cord, and a replacement handle. All original parts are provided. The original Jensen speakers sound fabulous, despite a small puncture in the cone of the 12” that is inaudible. Tubes are original, as are the covering and grills.

An excellent sounding amplifier that has a surprisingly high clean headroom before breaking up quite delightfully at about 7 on the volume knob. The tone control seems to be a bass roll-off, so it sounds best turned all the way down. Humbuckers, and high-output single coils work well with this one.
1948 Gibson GA-25
  • 1948 Gibson GA-25
  • 1948 Gibson GA-25
  • 1948 Gibson GA-25
  • 1948 Gibson GA-25
  • 1948 Gibson GA-25
  • 1948 Gibson GA-25
  • 1948 Gibson GA-25
  • 1948 Gibson GA-25
  • 1948 Gibson GA-25
  • 1948 Gibson GA-25
  • 1948 Gibson GA-25

SHOP VINTAGE & USED

Don't just browse history. Play it.

If you like what you see in our archive, you’ll love what’s currently in the shop. Explore our hand-picked selection of available vintage and used gear.

 Shop Vintage & Used
Folkway Music in Guelph, Ontario Canada

OUR STORY

Three decades of industry experience

We've spent thirty years building relationships with musicians, collectors, and fellow dealers across Canada and the US. Every guitar we sell has been inspected, played, and approved by hands that know the difference.

Learn More