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Ampete 444 Owner's Manual

Ampete fx midi amp/cabinet switching system
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Ampete
Ampete Engineering GbR
Gutenbergstrasse 48
50823 Cologne
Germany
fon
49 (0) 221 55 94 118
fax
49 (0) 221 55 94 118
mail
engineering@ampete.com
web
www.ampete.com
444
Owner's Manual
Owner's Manual 444
1

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  • Page 1 Owner's Manual 444 Ampete Owner's Manual Ampete Engineering GbR Gutenbergstrasse 48 50823 Cologne Germany 49 (0) 221 55 94 118 49 (0) 221 55 94 118 mail engineering@ampete.com www.ampete.com...
  • Page 2 Owner's Manual 444 __________________________ Ampete Engineering GbR, 2014 Ampete is a registered trademark copyright 2014, all rights reserved...

  • Page 3: Foreword

    It might surprise you to read this in a manual for an electronic device. We want to make sure you understand that by purchasing an Ampete Engineering Product you will get a device in which we put all our passion, belief and knowledge and that you get a product in the tradition of many great people before us, for whom electronics were and still are wonderful masterpieces.

  • Page 4: Table Of Contents

    ........10 detailed hook up of amps with FX-Loop ....... 11 detailed hook up of amps without FX-Loop. Controlling the 444 via the front panel........12 ..12 Selecting Amplifiers and Cabinets / Switching rules & protection …..............12 FX Loops .............

  • Page 5: Introduction

    … transformers... ???? Don't get nervous, it sounds complicate, but indeed it's very simple and the 444 truly simplifies your guitar rig in a way it hasn't been possible before, simply by using our old and beloved midi pedal.

  • Page 6: Front Panel

    Control Change mode when pressed long. See „Controlling via MIDI“ for more informations about the MIDI Control Change Modes 7. SAVE: Saves the current state of the 444 to the previously selected Program Change preset. 8. Display: Gives informations about the selected Program Change preset, Midi Channel, or Control Change mode.

  • Page 7: Rear Panel

    The chassis is grounded when the switch is in the 'Out' position. We recommend this position when using the 444 as the input device for your guitar. In case you are using other audio loopers in front of the 444, you might notice hum noise, which is most often caused by ground loops between two devices.
  • Page 8 Owner's Manual 444 10. FX IN: Connect the FX IN jack of the 444 to the input of your effect, whether it is a single unit like a delay pedal, a chain of pedals or rack units or another audio looper. This is exactly like you would connect it to your amp's FX Loop Send.

  • Page 12: Controlling The 444 Via The Front Panel

    FX Loop The FX loop option of the 444 allows to assign one single effect unit or even a complex FX rig to any of the FX loops of your connected amplifiers. That way you are not in need of one effect unit for each amplifier.

  • Page 13: Controlling The 444 Via Midi

    Owner's Manual 444 Controlling the 444 via MIDI Surely all the control functions of the paragraph 'controlling the 444 via front panel' (see page 10) pertain if you control it via Midi. But it offers some options beyond..Checking and setting the MIDI Channel By pressing the MIDI CHANNEL button, the display will show the currently active MIDI channel.

  • Page 14: Midi Control Change Messages Table

    I.e. if you program a preset that sends commands to switch on two amps at a time, the 444 will only show an error status (Er) in the display. Setting the Control Change mode To set the Control Change mode on the 444, press MIDI CHANNEL for a long period of time until the display shows „0“...

  • Page 15: Troubleshooting

    FX Loop. For example, if AMP1 is chosen, the AMP1 FX SEND and RETURN have to be connected to the same amplifier, which is connected to AMP1 INPUT and AMP1 OUTPUT of the 444! Problem: No amp can be selected.

  • Page 16: A Word On Impedances

    Owner's Manual 444 A word on impedances When it comes to impedances and matching of valve amplifiers and speaker cabinets, there have been written a lot of words and there have been told many opinions, myths and beliefs. And as it is so often in our world, all of them are in between the truth and the untruth.
  • Page 17 Yes, because - and this is the main fact for all the 444 users – it will never be the other way round. The Power will not increase when the load impedance is lower than the chosen amp output impedance (surely as long as we are talking about valve driven amplifiers).
  • Page 18 Owner's Manual 444 But even if the power decreases by almost one third compared to a matching load, the subjective impression will be the volume is nearly the same (as long as the phases of the speaker cabinets are the same).
  • Page 19 Ampete Engineering reserves the right to change specifications, wether it's technical, dimensional or in the owner's manual. Fender, Marshall, Vox, RJM or other brands or models are registered trademarks to their respective holders. Ampete Engineering isn't affiliated with them in any way.
  • Page 20 Owner's Manual 444 __________________________ Ampete Engineering GbR, 2014 Ampete is a registered trademark copyright 2014, all rights reserved...

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