- All Supro gear is inspected prior to shipping -
Supro Keeley Custom 12 25-Watt 1x12" Tube Guitar Amp Combo Demo
Designed in collaboration with Robert Keeley of Keeley Electronics as a follow-up to the bestselling Custom 10, the Keeley Custom 12 is built to seamlessly integrate your pedals into the heart of an all-tube Supro amplifier. The preamp and 2-band EQ section are voiced perfectly for running your gain pedals in front of the amp, while still maintaining Supro’s signature midrange heft and phenomenal touch dynamics. And a transparent effects loop provides the ideal point to inject your delay and reverb effects into the amplifier’s all-tube signal path, avoiding unwanted distortion on modulation effects. The Keeley Custom 12 features the legendary Celestion G12M-65 Creamback speaker, developed in the mid 1960s and beloved by the biggest guitar players in history. It produces vintage, woody tone while still offering major power, perfect for modern amps. Low-end heft complements warm and vocal mid-range, with crunchy upper-mids and sweet, articulate highs. A master volume circuit allows you to control the sound pressure level coming from the speaker, while pouring on copious amounts of gain from the ECC83S-based tube preamp or your favorite dirt pedals.
CONDITION: Showroom demo model. This amp is in mint condition with no cosmetic flaws—it's simply been gently played by a few customers. Enjoy a 15% discount!
WEIGHT: 38.4lbs
WATTAGE: 25W
SPEAKER BRAND: Celestion
SPEAKER MODEL: G12M-65
KNOB CONTROLS: Volume, Treble, Bass, Master
SPEAKER JACK: 1x 8-ohm, 2x 4-ohm
PREAMP TUBES: 2x ECC83S
POWER AMP TUBES: 2x 6V6GT
Questions?
Call/text us at 315-447-3243
Email us team@ishguitars.com
Ish loves Supro
We go beyond your typical guitar store. Each instrument is inspected at our in-house luthier shop before, during, and after its stay with us.
More Gear
Testimonials
Fantastic company. Answered my email promptly and shipped very quickly! I highly recommend Ish Guitars!
Robert, PRS Custom 24 Piezo![]()
Awesome transaction! I bought a pretty special guitar (previously owned by a famous guitarist), and Ish nailed it. Ethical dealer, quick ship, and fast responses. I look forward to doing business with them again in the future!
Devin, L'arrivee D-60![]()
Awesome guitar. Came with a perfect setup and no issues. Would love to buy another guitar from you guys.
Matthew, Music Man Cutlass![]()
