The perfect pedal platform.
Designed in collaboration with Robert Keeley of Keeley Electronics, the Keeley Custom 10 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. Meanwhile, 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. 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. The Keeley Custom 10 offers 25 watts of Class A power in a convenient 1x10 format, featuring the standout Celestion G10 Creamback speaker.
MODEL | ||
Name | Keeley 12 | |
SKU | 1968RK | |
ELECTRONICS | ||
Wattage | 25W | |
Speaker Brand | Celestion | |
Speaker Model | G12M-65 | |
Knob Controls | Volume, Treble, Bass, Master | |
Effects | Effects Loop | |
Inputs | 1 | |
Remote Switch Jacks | N/A | |
Outputs (line level) | Send | |
Speaker Jack | 1x 8-ohm, 2x 4-ohm | |
Preamp Tubes | 2x ECC83S | |
Power Amp Tubes | 2x 6V6GT | |
HARDWARE | ||
Cabinet Material | Poplar | |
Handle | Vinyl Dog Bone | |
Remote | N/A | |
Cover | N/A | |
Tolex | Blue Rhino Hide | |
Piping | White | |
Colorway | Blue Rhino Hide | |
Grill Cloth | Supro Silver/Blue | |
BODY | ||
Cab Dims (in.) | 23.625” x 16” x 10.5” | |
Cab Dims (cm) | 60 x 41 x 27 cm | |
Weight (lbs) | 42 lbs | |
Weight (kg) | 19 kg | |

Celestion Creamback Speaker
The legendary Celestion G12M-65 Creamback speaker, revered by some of the world’s greatest players, offers vintage, woody tone while still providing major power. Rich low-end complements warm and vocal mid-range, with crunchy upper-mids and sweet, articulate highs.

Perfect Pedal Platform
Designed to be the perfect platform for pedal aficionados, the Keeley Custom 12 features a transparent effects loop, allowing players to inject their modulation effects directly into the all-tube signal path, avoiding unwanted distortion and delivering sweet, clear effect-pedal tone.

Class A Premium Tone
A ECC83S-based tube preamp pours on the gain, while a Bruce Zinky-designed cathode-biased Class A power section loaded with premium EHX 6V6GT tubes achieves the instantly recognizable Supro sound.

Premium Look and Feel
Custom Blue Rhino Hide tolex, our Supro Silver/Blue grill cloth, white piping, a dog bone handle, and engraved headplate co-branded with Supro and Keeley Electronics identities.