Model: 4100
Inputs: 1 x 1/4", 1/4" footswitch
Channels: 2
Effects Loop: 2 x 1/4" (send/return)
Outputs: 2 x 1/4" speaker parallel, 1/4" recording, 1/4" direct
Power Output: 100 watts @ 4, 8, or 16 ohms
Footswitch Included: YES
Net Weight: 18.8 kg (41.4 lbs)

Marshall

JCM900 4100 head

Model: 4100
Inputs: 1 x 1/4", 1/4" footswitch
Channels: 2
Effects Loop: 2 x 1/4" (send/return)
Outputs: 2 x 1/4" speaker parallel, 1/4" recording, 1/4" direct
Power Output: 100 watts @ 4, 8, or 16 ohms
Footswitch Included: YES
Net Weight: 18.8 kg (41.4 lbs)