Retro-King, the monarch of all replica vintage amps, sounds the trumpets for The Plexi 100, which doesn't try to disguise the fact that it shares noble blood with late 60s Marshall models.

It's a 100 watt head featuring a solid state rectifier, four EL-34 power tubes, three 12AX7 preamp tubes, Heyboer 100 watt plexi replica transformers and a partridge in a pear tree. Every one of Retro-King's Plexi 100 amplifiers are hand wired from point to point on a vintage style turret board, staying true to form.

What's under the hood:

• Two channels, four inputs (high & low)
• Bright and normal channels
• Two of each: volume, treble, bass and presence
• Four matched JJ EL34 power tubes
• Three JJ 12AX7 preamp tubes
• One solid state rectifier
• Heyboer plexi transformers
• 4, 8 or 16ohm selector
• Two speaker outputs
• Plexi panels
• Original 100 watt plexi specs
• Dijon "mustard" caps
• Carbon comp resistors
• Steel chassis
• Hand wired point to point(teflon wire)
• Baltic birch cabinet(black levant tolex)

Since Retro-King wires these beauties by hand, you can have them made your way, just like Burger King. Here are the available mods.

The Cathode Cap Mod adds a switch that allows you to disable a standard .68 cap on the second stage cathode circuit meant to augment gain and midrange. The Gain Stage Mod has a rough explanation which I'd likely over-complicate. Here it is in Retro-King's decree words:

"I also offer my gain mod, which works like this: the input tube has two sides, channel one uses one half of the tube, channel two uses the other half. On the gain mod, one half of the tube drives the other half of the tube using the volume two pot as the gain control and the volume one pot as the volume control. This gives you a great amount of controllable gain. When you plug into the channel one input, it bypasses the extra gain stage and works like a stock plexi preamp. Both channels work with a master volume that I install on the front or back of the amp."

Moving on, the Negative Feedback Control mod, you can adjust the negative feedback resistor from 47k to 100k, just like the variances on the original Marshall's depending on the year of the release. The Master Volume Mod adds a Pre or Post P1 master volume. Finally, Retro-King only gives out a name: the Mercury Magnetics Plexi Output Tranny. There's probably a good reason that they don't describe this mod, and even if I knew what it was, I probably wouldn't tell you. The Retro-King would have me locked up in his retro-dungeon in no time.