Marshall JCM800 tube amps were also available as combo models. Combo amps (integrated amplifier and speaker in a single chassis) are popular with musicians because they save space, weight, and cost. Marshall combo amps in the JCM800 line were open-backed models, and featured Celestion speakers. Here's a nice photo of Marshall Arts supporter Jim Soucie's JCM 800 series Model 4211 100 watt 2x12 all-tube combo amp. Note the plastic footswitch that controls reverb and channel switching.

If you're observant you've noticed one thing about the combo amp models. The chassis is installed into the cabinet with the tubes pointing down. Thus, the controls are laid out exactly opposite those of the amplifier heads. You can see that the switches and knobs are mirror images of the head shown at the top of the page.

Combo models in the 800 line include the following:

• 4010 (50 watts, 1x12, combo version of 2204 head)
• 4103 (100 watts, 2x12, combo version of 2203 head)
• 4104 (50 watts, 2x12, combo version of 2204 head)
• 4210 (channel switching, 50 watts, 1x12, combo version of 2205 head)
• 4211 (split channel, 100 watts, 2x12, combo version of 2210 head)
• 4212 (split channel, 50 watts, 2x12, combo version of 2205 head)