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[New Era] Tone King Imperial Preamp The ultimate pedal with vacuum tube + IR for line output of Fender clean sound [Sound demo and reviews]

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"I can't turn up the volume at home, but I don't want to compromise on pure tube tone."

"Depending on the location, it may not be possible to carry an amplifier, so we need a system that can be completed directly from the line."

This pedal solves all of these real problems that guitarists face.

Tone King Imperial Preamp


The signature amplifier from the American handmade brand Tone King Imperial MK II The preamp circuitry of the 3s has been condensed into a compact housing and driven by three vacuum tubes. It also comes with IR cabinet simulation, spring reverb, tremolo, and MIDI, making it an all-in-one pedal that easily surpasses the standards of a compact pedal.

This article provides a thorough explanation of the Imperial Preamp's basic specifications, its unique features, and the reputations of players who have actually used it.

If you want to get both "vintage-class touch response" and "modern flexibility" at the same time, be sure to check it out until the end.

Tone King
129,800 JPY(TAX+) (As of 2026:05, March 16, 06 | Rakuten Market research)
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Tone King Imperial Preamp | Specifications

Vacuum tube12AX7 x 3 (high voltage drive)
ChannelRhythm = '60s blackface clean
Lead = '50s tweed crunch
ControlRhythm:Bass, Treble, Volume, Attenuation
Lead:Mid-Bite, Tone, Volume, Attenuation
Common:Reverb, Dwell, Depth, Speed
Built-in effectsSpring reverb (IR type) / Tremolo
Speaker IR15 preloaded OwnHammer cabinet IRs
Output terminal2 x stereo XLR balanced outputs (with ground lift)
ヘッドフォン端子Standard 1/4" jack
Effect loopStereo Send/Return
MIDI(5-pin DIN) - Supports 128 presets
Other terminalsTo Amp In / From Amp Send / From Amp Return / USB-C
电源DC12V center negative (included adapter recommended)
SizeW18.3 × D14.5 × H7.0 cm
weightApproximately 0.86 kg

Tone King Imperial Preamp | Features and Functions

Equipped with three vacuum tubes, it produces sound straight from an amplifier

The Imperial Preamp incorporates the preamp section and phase inversion stage of the Imperial MKII amplifier, and drives the 12AX7 at high voltage, achieving a rich, harmonic vacuum tube sound and excellent touch response.

Channel 2: '50s Tweed & '60s Blackface

  1. Rhythm
    The base tone is clear and clean, reminiscent of the blackface era of Fender in the 1960s.
  2. Lead: 1950s tweed-style warm crunch to mid-range rich overdrive. The Mid-Bite knob can also bring out a more British roar.

By equipping each channel with independent Volume and Attenuation, you can adjust the volume while maintaining the ideal amount of distortion.

Spring reverb and tremolo

The unit comes with a spring reverb recreated using the convolution method and a stereo compatible tremolo, allowing you to instantly control the spatial effects found on an amp with the touch of a foot switch.

IR Cabinet Simulation

It has 15 built-in OwnHammer IRs, allowing you to get the perfect amp + cabinet sound directly from the line. You can also turn off the IR and use it with an external loader or a real cabinet.

Flexible connectivity and MIDI compatibility

By incorporating it into the effects loop of an existing amplifier using the 3-cable method, it is possible to add a Fender-style channel to the amplifier. Conversely, you can also insert an external preamp into the Imperial loop to make it 3 channels. Up to 128 presets can be saved and controlled all at once by MIDI foot switch or DAW.

Tone King Imperial Preamp | Sound Demo

Tone King Imperial Preamp | Review and reputation

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Positive reviews
  • Excellent touch response
    "The volume control responds perfectly, and the nuances of your playing are reproduced in the sound."
  • The reverb texture is realistic
    "The spring reverb attack and decay are just like a real tank."
  • Multifunctionality makes the board simple
    "It saves space because it can store DI, IR, reverb, and tremolo all together."

Negative reputation

Negative reviews
  • Price is high
    "It's hard to justify this price for a pedal."
  • Need some tips for setting
    "It takes time to get the balance right between attenuation and volume."
  • No power amplifier included
    "You need a separate power amp to drive the cabinet."
  • High power requirements
    "A 1V adapter capable of supplying 12A of current is essential."

Tone King Imperial Preamp | Summary | Vintage tone and cutting-edge features condensed into one unit

Do you need forest bathing?
  • Those who can't produce loud sounds at home but don't want to compromise on tube tone
  • People who want to get authentic tones directly from the line without having to carry an amp to a live performance
  • People who want to add Fender-style clean/crunch to their existing amp
  • People who want the sound of the Imperial MKII amplifier but are concerned about installation and price
  • Those who want to add a "real vacuum tube" feel to a modern rig using MIDI or IR

The Tone King Imperial Preamp is a full-fledged tube preamp equipped with three vacuum tubes, but also includes modern features such as an IR loader, MIDI, and stereo DI.

From home recording to the stage, this will be the ultimate choice for guitarists who pursue uncompromising Fender-style clean and crunch.

Although the price is a little high, when you consider that you can upgrade your amp, reverb, tremolo, IR loader, and DI all at once, the cost performance is not bad at all.

If you're a player who wants to take full advantage of the charm of vacuum tube amplifiers while also being compatible with modern production and live environments, be sure to check out Imperial Preamp.

Tone King
129,800 JPY(TAX+) (As of 2026:05, March 16, 06 | Rakuten Market research)

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