Guitars 'n Jazz

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The Fifty Five Twelve (R55-112) is used by session and stage players around the world. Easy to transport, powerful enough for most studio and casual gigs, and able to fill most small clubs, this little fire breather is used by Rick Nielsen of Cheap Trick, by Paul Jackson, Jr., in the studio and on his Whitney Houston Tours, and by Kenny Lewis and Steve Miller of the Steve Miller Band on all of their tours and in the studio. The Fifty Five Twelve is available in a limited quantity on special order with Rick's custom checkerboard paint job.

Heavy in tone, light in weight, easy to use, and very portable, our R Series of all-tube combo amplifiers evolved from our M/S Pro Series combo amp. They are available in two sizes, with a 1-12" or 2-12" custom Celestion speaker configuration, in 30-watt and 55-watt (1-12" only) or 100-watt power (2-12" only). R Series amps feature our legendary pair of independent and differently voiced channels, with footswitchable boost on each, delivering four sounds at the tap of your toe.

From British amp tones on Channel One, for those sultry crunch rhythms and leads, to the warm tweed or blackface American tones on channel two, the versatility to bring out the best in any style is there. Built-in Hammond 3-spring reverb provides a smooth and sweet fill, and a super-quiet active effects loop with level controls lets you utilize external effects quietly and allows you to mix in that extra spice you need for your individual style.

Specifications
High-gain input impedance:	1 Megohm
Low-gain input impedance:	33k ohms
Output impedance:	8 ohms
Line output impedance:	330 ohms minimum
Total harmonic distortion:	5% at rated power
Bandwidth:	50 Hz to 20kHz
Preamp tubes:	Five 12AX7A
Output tubes:	Two EL-34
Tube voltage:	430 volts DC
Output power:	55 watts RMS into 8 ohms
Operating voltage:	115 volts AC or 230 volts AC (export model), or 100 volts AC (Japan only)
Speaker:	One 12" specially designed Celestion
Speaker impedance:	8 ohms
Speaker power handling:	85 watts
Reverb type:	Accutronics 3-spring
Footswitch functions:	Channel switching, boost for Channel 1, Ninja Boost
Height:	18"
Width:	20-7/8"
Depth:	9-3/4"
Weight:	47 lbs.
Cabinet material:	Solid lumber-core plywood
Cabinet thickness:	3/4"
Baffleboard:	3/4"-thick medium-density fiberboard
Construction:	Dadoed joints
Covering:	30-oz. vinyl
Cleaning of vinyl covering:	Moist cloth, dishwashing liquid
Grillecloth:	Fiberglass, fire-retardant cloth
Care of grillecloth:	Remove frame, use compressed air to blow out dust
Because we strive to constantly improve our products, specifications are subject to change without prior notice.