The Twin Sister 1x12 Combo puts Friedman's two-channel, 40-watt Twin Sister circuit in a tongue and groove Baltic Birch cabinet with a 16 ohm Celestion G12H Redback. Friedman built it on a modified JTM 45 with a pair of 5881s and five 12AX7s, and both channels are the same Dirty Shirley voice, each with its own Gain, Master, three-band EQ, Bright switch and 3-position gain switch.
Two matched channels means a clean and a crunch, or two gain levels of the same sound, on one amp. Global Presence and Deep knobs set the overall voice, pedals go in front, and time-based effects go in the series loop. It is hand-wired in the USA.
Against the Twin Sister Head, the combo carries its own speaker at 52 lbs. against the head's 32, so there is no cabinet to bring. The Dirty Shirley 1x12 Combo is the single-channel version in a combo of the same size.
SPECIFICATIONS
AMPLIFIER
Country of Origin: United States
Configuration: 40-Watt all tube 1x12” Combo
Channels: Two-Channels
Construction: Hand-wired in the USA
Transformers: Custom USA made transformers
TUBES
Power Tubes: 2 x 5881
Preamp Tubes: 5 x 12AX7
CONTROLS
Per Channel: Gain, Master, Bass, Middle, Treble
Per Channel Switches: Bright Switch and 3-position Gain Switch
Global: Presence and Deep knobs
Gain Structure: Three position gain structure switch
SPEAKERS
Speaker: 16 ohm, 12” Celestion G12H Redback speaker (150w)
CABINET
Construction: Tongue and groove Baltic Birch
CONNECTIONS
Effects Loop: Ultra transparent series FX loop
Impedance: 4, 8 and 16 ohm Impedance selector switch
FEATURES
Limited Lifetime Warranty
DIMENSIONS
Dimensions: 9.5″ (D) x 24.25″ (W) x 22 (H)
Weight: 52 lbs.



