Here for sale 2020s Tone King Ironman II 100-Watt Precision Compensated Reactive Power Attenuator. Probably the best attenuator on the market. It's in very good condition and comes as pictured. All great tube amps sound best when they’re being pushed. But that often means angry looks from band members and sound engineers. Those days are over. The Ironman II allows you to take your ground-shaking rig to whisper levels. Unlike other tube amp attenuators, the Ironman II’s reactive load technology and transformer-coupled power division circuitry does it while retaining all of the detail, warmth, and response of your pure tone.