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Tone King Tone King Tone King Tone King “Imperial MK II” “Imperial MK II” “Imperial MK II” “Imperial MK II” User’s Manual User’s Manual User’s Manual User’s Manual 2/24/2015 Tone King Amplifiers A division of Premier Builders Guild LLC www.toneking.com...
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Note from the Builder Note from the Builder Thank you for choosing the Imperial MK II guitar amplifier. The Imperial was the very first production model built by Tone King. It was introduced in 1993, and has been a favorite of guitarists for over 20 years now. The MK II update incorporates all that I’ve learned as an amp designer over these past 20 years, without changing the essential character of the amp.
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Safety Instructions Safety Instructions Safety Instructions Safety Instructions 1. Please read these instructions, and keep them for reference. 2. Please follow all instructions described here. 3. Do not use this apparatus near water. 4. Clean only with a dry cloth. 5.
Contents Contents Contents Contents 1. Front Panel Controls Two Preamp Channels – Lead and Rhythm Rhythm Channel Lead Channel Reverb Tremolo (Rate & Depth) 2. Back Panel Controls AC Power Fuse Power Switch, Standby Switch Footswitch Speaker Jack Attenuation Controls 3.
1. Front Panel Controls 1. Front Panel Controls 1. Front Panel Controls 1. Front Panel Controls Two Preamp Channels — — — — Lead and Rhythm Two Preamp Channels Lead and Rhythm Two Preamp Channels Two Preamp Channels Lead and Rhythm Lead and Rhythm The Imperial has two separate preamplifier channels, each with its own unique voicing.
The Lead channel starts out with a Tweed style preamp, which drives a proprietary tone-shaping circuit built around the Mid-Bite control, a unique Tone King feature. This proprietary circuit transforms the basic tweed tone to more of a crunchy rock tone as you turn up the mid-bite control.
This circuit achieves the tremolo effect by varying the bias of the output tubes. This type of tremolo was used in all Tone King amps going back to 1993. However, the Imperial MK II uses a modified form of this circuit which virtually eliminates the “thumping”...
2. Back Panel Controls 2. Back Panel Controls 2. Back Panel Controls 2. Back Panel Controls AC Power AC Power AC Power AC Power Always use a grounded AC cord, and make sure that a proper ground connection is supplied to the amp. Never attempt to lift or defeat the ground connection to the amp. Fuse Fuse Fuse...
Ironman/II Compensated Power Attenuator Ironman/II Compensated Power Attenuator The Imperial MK II contains the new Ironman-II precision compensated power attenuator. The Ironman-II’s new architecture goes a step beyond the original Ironman design. It includes circuitry which helps compensate for the way your ear perceives sound at very low volume, and also for the way the speaker performs at very low power.
3. Ironman/II Attenuator 3. Ironman/II Attenuator 3. Ironman/II Attenuator 3. Ironman/II Attenuator Purpose of the Attenuator Purpose of the Attenuator Purpose of the Attenuator Purpose of the Attenuator The Imperial is designed so that, when driven into overdrive and distortion, most of the distortion is generated in the output tubes (and the phase inverter).
Attenuator Controls Attenuator Controls Attenuator Controls Attenuator Controls As you can see from the illustration on the previous page, the attenuator controls consist of one rotary knob to select the attenuation level, and two switches to control other functions which will be described below. On the Attenuation dial, 0db is the loudest setting.
HF Comp Switch HF Comp Switch HF Comp Switch HF Comp Switch As was previously mentioned, the Ironman/II contains special compensation circuitry to adjust the EQ curve and the amount of compression/presence progressively as the Attenuation knob is turned from 0 to its maximum setting of –36db. The HF Comp switch allows you to select between two different levels of compensation, Max and Normal.
4. Getting a Great Sound at Home 4. Getting a Great Sound at Home 4. Getting a Great Sound at Home 4. Getting a Great Sound at Home The Effect of Your Acoustical Environment The Effect of Your Acoustical Environment The Effect of Your Acoustical Environment The Effect of Your Acoustical Environment When playing in a large room or on a big stage, getting a great sound from your amp is...
Backwards Amp Trick Backwards Amp Trick Backwards Amp Trick Backwards Amp Trick Some small rooms have such problematic acoustical properties that you must take more drastic measures to get the best amp sound. Here’s a trick you may have seen used on stage.
5. Tube Installation and Replacement 5. Tube Installation and Replacement 5. Tube Installation and Replacement 5. Tube Installation and Replacement Choice of Tube Types and Brands Choice of Tube Types and Brands Choice of Tube Types and Brands Choice of Tube Types and Brands I currently recommend the following tube types: Type and Brand Function...
12AX7 Tubes: The Tung Sol 12AX7 is a great choice for the Imperial MK II. It has a nice balance of detail and warmth EH 12AX7s are very similar to Tung Sol 12AX7s – both are very quiet with very low microphonics and are a bit on the bright side, with an extended top end.
Tube Quality Currently manufactured tubes are built in China, Russia, or the Czech Republic, and are not built to the same quality standards as tubes manufactures by the U.S. manufacturers in the “glory days” of tube manufacturing. We musicians choose to use to vacuum tubes because of their tone, but we need to accept that the tubes available to us these days can be imperfect devices, and are most certainly the least reliable component in the entire amplifier.
What We Will Pay For The Tone King Amplifier Company will pay for all labor and material expenses to fix or replace all items covered under this warranty. The customer will pay shipping charges to return the product to the Tone King Amplifier Company.
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