R Series V1.0 p 30
Suprema, Chubster 55, R55-112
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 G12T-75 or G12T-85 (Suprema is
Vintage 30 or optional G12-T75)
Speaker impedance:
8 ohms
Speaker power handling:
75 watts (Suprema is 70 Watts)
Reverb type:
Accutronics 3-spring
Footswitch functions:
Channel switching, boost for Channel 1, Ninja Boost
Height:
18" (Suprema is 21 ½” Tall not including ¾” for the rubber feet)
Width:
20-7/8" (Suprema is 24 ½” wide)
Depth:
9-3/4" (Chubster 55 is 12” Depth)
Weight:
47 lbs (R55) 52 Pounds (Chubster 55), and 67 Pounds (Suprema).
Cabinet material:
Solid lumber-core plywood
Cabinet thickness:
3/4"
Baffleboard:
3/4" or 5/8”-thick Plywood
Construction:
Dadoed joints
Covering:
Vinyl
Cleaning of vinyl covering:
Moist cloth, dishwashing liquid
Grillecloth:
Synthetic, fire-retardant cloth
Care of grillecloth:
Remove frame, use compressed air to blow out dust
