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The unparalleled flexibility of removable all-tube preamps — 2 at a time.
18 independent hot-swappable plug-in preamps are available. Physically designed after the preamp sections of the world's greatest amps, they generate unparalleled purity of tone in all styles. The Randall RM50HB becomes any combination of classic or modern amps, simply by plugging in your choice of tube preamp modules. Designed for the club professional who is looking for an all-tube amp with multiple tones. The RM50B gives you 50W of power using Ruby 6L6 tubes and 2 modular channels for plugging in Randall preamps. Controls include master volume, master density and presence controls, and front panel mix control. Connections include a tube-buffered parallel effects loop, series effects loop, slave out, rear master input (for volume pedal), and rear bias test points.
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Comments about Randall RM50HB 50-Watt Modular Tube Amp Head:
Very easy to use, plug and play amp. Just choose two of Randall or Egnater modules that just slide right in. All modules are tube driven and voiced to mimic many loved amps. Amps like Marshall, Fender, Bogner, Mesa and more. The RM50 has a great reverb, series and parallel loops, and presense and density controls. You can run any choice of power tubes too. From 6L6, EL34, 5881, 6550, KT88, KT77 and KT66s. Also use 6V6 power tubes as long as you use JJs, for lower wattage. You can bias the tubes yourself on the back of the amp. All you need is a volt-meter and a flathead screw driver. You can have fun changing preamp tubes in the modules too. These amps are near endless on the search for tone and its all tube!!