KEELEY CUSTOM 12 1X12 | 25-WATT | EFFECTS LOOP THE NEXT CHAPTER 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. 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 Tung-Sol 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. KEELEY CUSTOM 12 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 VC12 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