Tone King Ironman 100W Reactive Power Attenuator.
The Tone King Ironman II is a 100W precision compensated reactive power attenuator.
Its sophisticated design allows you to reduce the volume level at the speaker(s) while allowing the amplifier to operate at full output power.
The Ironman II preserves every ounce of the tone and feel of your amplifier, for natural power-tube overdrive and distortion!
The 18 distinct attenuation settings let you choose the amount of output power that is being sent to the speakers.
The rest of the amplifier's power dissipates within the Ironman II.
Unlike any other attenuator.
What makes the Ironman II work unlike any other attenuator is the tuned reactive load and the transformer coupled power division circuitry.
An amplifier responds a lot differently when driving a real speaker load, compared to a simple resistive load (as is used in most attenuators).
Ideally, the load seen by an amplifier should have the appropriate complex impedance curve so that it responds as it does to a real speaker.
Tone King developed the Ironman's reactive load circuit by matching the results of impedance curve measurements ran on an actual speaker.
This creates a load circuit that is most effective at preserving the tone and feel of your amplifier.
The second part of the equation is the circuitry that divides the power from your amplifier between the speaker and the load.
Most attenuators use a resistor ladder at this stage, which results in a dull top end and muddy sound.
The Iron Man II uses 100% transformer coupling via a set of custom audio transformers.
The connection between the amplifier-to-load and between the amplifier-to-speaker is purely transformer coupled at every step of the attenuation dial.
This is an expensive and elaborate design, but it's significantly more effective at preserving the tone and feel of your amplifier.
In this new generation of the Iron Man II an analog speaker cabinet simulation for DI purposes (balanced XLR) is included.
Comparing this analog circuit to some of the most intricate computer-based IRs, Tone King achieved a great sounding output you can send to front of house or use in the studio.
Included are switches for level (line and microphone inputs), and an option to select between speaker center or edge micing and ground-lift.
The Ironman II provides a unique Solo mode which can be engaged using the included foot switch.
The Solo function selects between the Solo and Lo/Hi range setting of the attenuator allowing you to toggle between with 2 different volume levels.
This is useful for giving the guitar that extra volume kick needed for a guitar solo that cuts through the mix or two rhythm level settings.
One unique feature of the Ironman II is its two Impedance controls: one for the amplifier input, and one for the speaker output.
These dual impedance controls allow you to match your speaker to your amplifier, even if the speaker impedance differs from the amplifiers' output impedance.
Use as a Dummy Load
The Ironman II may be used as a dummy load, to provide a proper load for your amplifier, with no speakers attached.
This is typically done in recording, where the Ironman II's Line-Out will be used to drive a mixing board, or when an amplifier is being "slaved" to a larger amp.
The Presence switch provides subtle control of brightness and compression.
It allows you to tailor the response to match your acoustic environment, and to correct for an overly bright amplifier.
Three settings are provided: 0db (brightest setting), -3db, and -6db (darkest setting).
Attenuate / Bypass Switch
The “Bypass” mode is the far right setting of the attenuation knob (0dB) in the Solo mode.
In Attenuate mode, the attenuator is active, and in Bypass mode, the attenuator is disabled.
In Bypass mode, the speaker outputs are connected directly to the amplifier input, and the attenuator circuitry is completely disconnected from the signal path.
The Ironman's Line-Out jack provides a line-level signal that can be used to drive another amplifier, mixing board, computer sound input or any other line level input.
Tone King Ironman Attenuator features:
• 100W precision compensated reactive power attenuator.
• 18 distinct attenuation settings.
• DI Output: great sounding output you can send to front of house or use in the studio.
• Solo Mode: toggle between with 2 different volume levels.
• Impedance Matching: match your speaker to your amplifier.
• Use as a Dummy Load: provide a proper load for your amplifier, with no speakers attached.
• Presence Switch: provides subtle control of brightness and compression.
• Weight: 15 lbs.
• Dimension: 10.25" x 9.5" x 3.75".
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