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Ironball
Full Tube
Guitar Amplifier
Operator´s Manual
Please, first read this manual carefully!

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Summary of Contents for Engl Ironball

  • Page 1 Ironball Full Tube Guitar Amplifier Operator´s Manual Please, first read this manual carefully!
  • Page 2 ECC83 (12AX7) tubes dish out heaps of distinctive tube overdrive and distortion. The Ironball sports two channels, Clean and Lead; offerering plenty of variety for the tone connoisseur courtesy of its two channels and the Gain Boost switch.
  • Page 3 3 Lead Gain: Gain control for the Lead Channel. This Control knob determines input sensitivity when the Lead is active. Use it to dial in the desired amount of preamp saturation level. A tip from the designer: Sometimes a touch of dirt is all you need for snarling rock riffs and gritty rhythm work.
  • Page 4: Rear Panel

    A Tip from the designer: If you want to control the amplifier via a MIDI system, use jacks 16, 17 and a looper or MIDI switcher (such as the ENGL Z-11). Use two stereo ¼" cords to connect the optionally available ENGL MIDI Switcher Z-11. You can then preset the four switching functions Clean/Lead, Gain Boost, M.V.B.
  • Page 5 21 Headphones: Connect stereo headphones rated for 8 to 32 ohms to this stereo jack. Alternatively, you can connect two hi-fi speakers with 8 ohms each to this output. Note: The signal routed to the headphones amp is tapped post power amp at the 8-ohm output and is processed by the frequency compensation filter in the Balanced Line Output circuit.
  • Page 6 Power Soak Panel I. Full Power II. 5 watts III. 1 watt IV. Speaker Off POWER SOAK Power Power Power Power Power Full Power Full Power Full Power Full Power Full Power Range Range Range Range Range Selector Selector Selector Selector Selector 5 watts...
  • Page 7: Technical Data

    Technical Data Rated power: approx. 20 watts (max.) at 8 or 16 ohms; Input sensitivity level Input, Clean channel: -40 dB to approx. -5 dB max.; Input sensitivity FX Return: -20 dB, approx. 0 dB max.; Output level FX Send, level range: -10 dB to approx.
  • Page 8: Handling And Care

    Running the amp at mains voltages exceeding the nominal mains input voltage over longer periods can also shorten component life. * Replace tubes with selected tubes that satisfy ENGL selection criteria to forestall microphonic properties, undesirable noise and unbalanced power amp signals.
  • Page 9: Troubleshooting

    (Refer to "Wiring of Principal Connectors" for pin assignments.) -> If you are using footswitches other than an ENGL Z-4 or Z-11, are the switches or relays inside the boards or switching loop systems off / on Single Pole Single Throw (SPST) switches? In other words,...
  • Page 10 ON/OFF ON/OFF 1. Use a dual footswitch such as the ENGL Z-4, connecting it to the amp via a stereo cord equipped with ¼" jack plugs. You can switch channels and Gain Boost via the dual footswitch connected to port 17, M.V.B. and Reverb Off/On via the dual footswitch connected to port 16.

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