Tone King Royalist Tube Preamp Pedal

The Sound of British Rock Royalty - Now on Your Pedalboard.

Experience the evolution of the British "Plexi" sound with the new Tone King Royalist Preamp Pedal. This high-voltage, tri-tube floor unit captures the authentic soul of the Royalist MKIII amplifier, delivering everything from sweet JTM45 cleans to the searing roar of a 1970s Super Lead.

Unlike digital modelers, the Royalist Preamp operates on three 12AX7 tubes at proper high voltages, providing the genuine harmonic bloom, touch sensitivity, and dynamic punch that only real glass can provide. It features a built-in "Zero Watt" Power Amp—a genuine phase inverter circuit—to replicate the interaction between preamp and power stage that defines the classic British experience.

Key Features:

• Three Eras of British Tone: Each of the two independent channels features a 3-way voicing switch covering 1964 (JTM45), 1967 (Plexi), and 1970 (Super Lead) flavors.

• Dual Iron Man Attenuators: Built-in attenuation and HF switches allow you to dial in your sweet spot at any volume.

• Onboard IR Technology: Pre-loaded with premium OwnHammer IRs for direct-to-FOH or recording use. Includes a 3-position selector per channel.

• Deep Customization: Use the Tone King Editor software via USB-C to manage up to 128 presets, assign IRs, and fine-tune filters.

• Versatile Connectivity: Stereo FX loop, MIDI 5-pin, balanced XLR outputs, and a dedicated headphone out for silent practice.

Each of its two independent channels features the amp’s FAT switch and three-way 1964/1967/1970 voicing selector, faithfully reproducing the gain structure, tone stack, and feel of the original circuits. Whether you’re chasing sparkling cleans, punchy crunch, or molten roar, the Royalist Preamp delivers the unmistakable voice of British rock, anywhere, at any volume.

Three Eras of Iconic British Tone
Each channel of the Royalist Preamp offers its own three-position voicing switch, mirroring the evolution of the British amp sound across decades:

• 1964 - Smooth top end, lower gain, and a balanced, vintage warmth inspired by early British blues amps.
• 1967 - Crisp treble response, bold midrange, and the aggressive bite that defined rock’s formative years.
• 1970 - Increased gain and tightness for that unmistakable, high-energy crunch of arena-ready hard rock.

Pair these voicings with each channel’s FAT switch option to add body and low-end warmth to single-coil guitars or enhance sustain and punch with humbuckers.

Built-In Zero Watt Power Amp with Phase Inverter
The Royalist Preamp includes Tone King’s “Zero Watt Power Amp,” a genuine phase inverter circuit powered by one of its three 12AX7 tubes. This design captures the Royalist’s harmonic depth and dynamic interaction between preamp and power stage — a key ingredient of true British tone that most preamp pedals can’t replicate. The result is the full experience of an overdriven Royalist power section, without the ear-splitting volume.

Impulse Response (IR) Cabinet & Power Amp Sim
The Royalist Preamp Pedal features Tone King’s low-latency IR and power amp simulation engine, offering direct output to Front of House (FOH), recording interfaces, or with your favorite headphones with stunning realism. Preloaded with a curated selection of OwnHammer IRs capturing vintage British 1×12, 2×12, and 4×12 cabs, each channel includes a 3-way IR selector for instant tonal changes: 

• OH 112 Imperial TK1660: Tone King 1660 speaker in a Tone King Imperial 1x12 combo. Captured using a Shure SM57, a Neumann U87, and a Royer 121 through '70s API 312 preamps. 
   
• OH 212 Class A Blue: Celestion Blues from 1963 in a Vox AC30 2x12 combo. Captured using a Shure SM57, a Neumann U87, and a Royer 121 through '70s API 312 preamps. 
   
• OH 412 Basketweave M25: Celestion G12M-25 speakers from 1971 in a basket-weave 1960B 4x12 cabinet. Captured using a Shure SM57, Telefunken MD421, and Royer 121.

There are 12 additional IRs to choose from in the included Tone King Editor software (powered by Synergy) which are easy to swap in and out of the pedal's six available slots. Load your own favorite IRs via the Tone King Editor software (powered by Synergy), or you can also disengage the onboard IR loader entirely to use the preamp with an external IR loader or powered cabinet.

Tone King Editor Software - Deep Control, Modern Flexibility
The included Tone King Editor software unlocks deep editing capabilities for digital parameters. Save and recall up to 128 presets via MIDI, assign IRs per channel, fine-tune HF and LP filters, and configure reverb, or FX loop assignments — all in one intuitive interface.

Savable Parameters:

• Channel switching and bypass states
• Easily load your own IRs and manage your IR library
• IR bypass and power amp simulation options
• HF Comp and Low-Pass filters
• Access all 15 included OwnHammer IRs
• Assign any of your IRs to the pedal's six available slots (three per channel)
• Reverb, reverb tails, and effects loop bypass routing
• Save these settings to up to 128 presets for instant recall via MIDI

Expanding Your Rig
The Royalist Preamp Pedal is equally at home on stage, in the studio, or integrated with your favorite amp.  It also makes the ultimate backup option in case your favorite amp goes down at a gig....

Add Channels to Your Existing Amp
Use the 3-cable method with any amp that has a series effects loop to instantly add two channels of British tube tone to your existing rig.

Combine with Other Preamps
Link multiple effects-loop-equipped preamp pedals to build an ultimate hybrid system. Assign the Royalist’s IRs and power amp emulation to other preamps, or route its reactive output into a separate power amp and cabinet for the real-air experience.

The Sound of British Heritage, Reborn for the Modern Player
From the club stages of the ‘60s to the arenas of the ‘70s, the sound of British rock has defined generations of guitar tone. Now, with the Royalist Tube Preamp Pedal, that legacy lives on — delivering the roar, chime, and harmonic richness of those legendary amplifiers in a compact, high-voltage, pedalboard-ready design.