Detail 01
Celestion G12M-65 Creamback speaker
The combo uses the specified Celestion 12-inch speaker.

Independent shopping perspective
Built around a pedal-first all-tube platform, the Keeley Custom 12 pairs a gain-pedal-focused preamp and two-band EQ with a transparent effects loop for delay and reverb. Its 25W output drives a Celestion G12M-65 Creamback speaker, while separate Volume and Master controls let you set preamp gain and speaker level independently. The result is a 1x12 Supro combo designed to keep pedals central to the signal path without losing its midrange-forward response.

Strong match
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 01
The combo uses the specified Celestion 12-inch speaker.
Detail 02
These controls separate preamp level from the level sent to the speaker.
Detail 03
Provides a dedicated connection point for delay and reverb effects.
Detail 04
A substantial 1x12 combo for transport and setup planning.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
Yes. Its preamp and two-band EQ are voiced for gain pedals placed before the amplifier.
Yes. The transparent effects loop is intended for delay and reverb.
It is rated at 25W.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.