Meet the Ambassador

Built by hand in the USA, the Supro Ambassador Custom is a 50-watt 2x10 combo amp that utilizes ultra-premium components to deliver the pinnacle of Supro tube amp tone. Housed in a mid-century, Valco-inspired wraparound cabinet and voiced to offer enormous, vivid tone, the Ambassador comes loaded with top-of-the-line Mercury Magnetics transformers, vintage-correct Mallory capacitors, precision-matched EHX tubes, tube-driven spring reverb and a pair of custom BD10 Supro speakers built by Celestion.

The Ambassador’s unique circuit topology is designed to squeeze every drop of performance out of the amp’s top-shelf components. It offers copious headroom, yielding massive clean tones that give way to sweet overdrive only at the highest volumes—ideal for players who float across the genre spectrum and desire a top-of-the-line tube amp that can deliver premium rock, funk, and R&B tones. Every element within the Ambassador has been selected to provide a broadband sound—rich in even harmonics, reflective of the true nature of your instrument, and an excellent platform for pedals.

The preamp in the Supro Ambassador features three 12AX7 tubes and a specially-voiced 3-band EQ to make the most of the extended frequency response derived from the Mercury Magnetics transformer set. Immediately following the preamp comes the signature Supro paraphase inverter stage followed by a master volume control that is optimally located within the circuit to preserve frequency response as well as the dynamic interaction between the all-tube preamp, 12AT7-driven spring reverb and variable-wattage power amp.

The Ambassador features a switchable Class A (35 Watt) / Class AB (50 Watt) output stage loaded with EHX 5881/6L6WGC power tubes to deliver responsive articulation and an exceptionally low noise floor even at full volume. Class A mode delivers the more traditional, cathode-biased Supro sound with a bold midrange, while Class AB delivers a grid-biased California sound with a more scooped mid-range, tighter bass and faster transient response. Perfect for players looking for loud, colorful cleans and a hefty bottom end, the Supro Ambassador Custom offers iconic tone both onstage and in-studio.

MODEL AMBASSADOR
Name	Ambassador 2x10 Custom
SKU	1630RCBUR
ELECTRONICS
Wattage	35W / 50W
Speaker Brand	Supro
Speaker Model	Supro BD10 x2
Knob Controls	Vol, Treb, Mid, Bass, Verb, Master
Effects	Reverb
Inputs	1
Remote Switch Jacks	TS Single Footswitch
Outputs (line level)	N/A
Speaker Jack	1x 16-ohm, 2x 8-ohm, 2x 4-ohm
Preamp Tubes	3x 12AX7, 1x 12AT7
Power Amp Tubes	2x 5881/6L6WGC
HARDWARE
Cabinet Material	Poplar
Handle	Dogbone
Remote	Single Footswitch
Cover	N/A
Tolex	Black Scandia with Gold Accents
Piping	Cream
Colorway	Black and Cream
Grill Cloth	Hemp with Black Supro Logo
BODY
Cab Dims (in.)	23.5" x 10" x 17.5"
Cab Dims (cm)	60 x 25.5 x 44.5cm
Weight (lbs)	47lbs
Weight (kg)	21.5kg

Meet the Ambassador

Designed to reach new heights in the realm of high-headroom amplifiers, the Ambassador is voiced to offer enormous clean tone that only gives way to glorious overdrive at the highest volumes. Perfect for Funk, R&B, Soul, and Rock tones.

Celestion Speakers and Variable Power

Offering exceptional versatility propelled by two custom 10-inch speakers built by Celestion, the Ambassador offers 50 watts of Class AB tone, or 35 watts in Class A. Utilize Class AB for a tighter bottom-end and greater headroom, or switch over to Class A for more midrange warmth and quicker breakup.

Hand-built in the USA

Featuring hand-crafted cabinetry, vintage-correct Mallory capacitors, precision-matched EHX tubes, and a Mercury Magnetics transformer set, Supro Custom amplifiers utilize only the finest componentry, resulting in the most premium Supros ever made.

Custom Scandia

The Ambassador’s unique Valco-inspired wraparound cabinet is dressed in a custom Scandia tolex—Black or Burgundy—with gold accents, complementing gold-topped knobs and a brushed gold headplate. A cream-colored hemp grillcloth complements cream piping for even more retro styling.