User`s manual

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Ampete

444

Ampete Engineering GbR

Gutenbergstrasse 48

50823 Cologne

Germany

49 (0) 221 55 94 118

engineering@ampete.com

ampete.com

User's Manual 444

Summary of content (14 pages)

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Ampete 444 Ampete Engineering GbR Gutenbergstrasse 48 50823 Cologne Germany 49 (0) 221 55 94 118 engineering@ampete.com ampete.
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We all.... ... produce electronic waste! It's just a matter of time! We here at Ampete Engineering are not only consumers, like you yourselves, but also engineers of electronic products that we want to place into a modern world. Here it looks at first glance that everything has been invented already.
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Table of Contents – – – – – – – – – – Foreword Introduction Features Front panel Back panel hooking up amplfiers and cabinets to the 444 controlling the 444 via front panel switches controlling the 444 via midi control change midi changes Troubleshooting User's Manual 444
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Introduction The 444 is designed to combine guitar amplifiers, guitar cabinets and guitar effects! There have been Audio Loopers before, but there hasn't been the possibility to route one out of four amplifiers into one or two out of four cabinets. Wait...
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Front Panel 1. FEED THRU: Jack for an ungrounded direct signal connection from/to the backpanel FEED THRU. Use it for connecting tuners, wireless systems or any connection you need from back to front without using long cable connections. 2. BUFFER IN: Front Panel instrument input, which routes the instrument signal to your connected amplifier inputs via a high to low impedance buffer, for keeping signal clean and noiseless without coloring it. 3.
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Rear Panel 1. PHANTOM POWER PEDAL Jack: Connect a DC power supply to provide phantom power for your MIDI pedal. By default the DC jack is connected to 3 and 4. 2. AC JACK / AC VOLTAGE SELCTOR: When changing AC voltage for using the 444 in a different country. Make sure fuse values are correct. 3. GROUND LIFT: Controls wether the 444s audio ground is connected to earth conductor or not. The chassis is grounded when the switch is in the 'Out' position.
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12. FX LOOP GND LIFT: Normally . The FX LOOP GND LIFT lets you suppress possible pops when switching between 2 amps with using spillover effects like long delays or reverbs. This is most often caused by a static voltage growing to a non grounded electronic signal path or switching between from one audio ground to another. In almost any case that switch will solve the issue 13. BUFFER IN: BUFFER IN to drive the AMP INPUTS of the 444.
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A Typical Setup AMP1 FX RETURN AMP1 INSTR. IN AMP1 FX SEND AMP1 SPEAKER OUT AMP 1 AMP2 FX RETURN AMP2 FX SEND AMP1-4 RETUR N FX OUT OUTPU T AMP 2 AMP2 INSTR. IN AMP3 INSTR. IN AMP3 FX SEND AMP3 SPEAKER OUT AMP4 FX RETURN AMP4 INSTR.
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Controlling the 444 via the front panel Selecting Amplifiers and Cabinets / Switching rules & protection At this point you hooked up your amplifiers and cabinets to the 444. Let's start switching! You should establish a certain operating process when operating the 444. Either in the operating way via the front panel switches or when programming midi presets, a cabinet has to be chosen by pressing the corresponding front panel CABS switch. It is NOT possible to select an AMPS switch before.
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MIDI Program Change The 444 offers the possibility to save up to 99 presets of different amplifier / cabinets combinations. You can switch between presets by sending MIDI Program Change messages from your MIDI foot controler, or any other MIDI device connected to the 444 „MIDI IN“ connector. To save a preset, send a MIDI Program Change message of the desired preset number. The switcher status saved with the preset number is called, and the preset number is shown in the front panel display (7).
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Setting the Control Change mode To set the Control Change mode on the 444, press MIDI CHANNEL (5) for a long period of time until the display (7) shows „0“ or „1“ with an additional decimal point in the lower right corner. Note that in contrast to setting the MIDI Channel this action directly toggles the CC Mode, there is no way to check the current setting first.
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Troubleshooting Problem: No signal when an amplifier (AMP1-4) is chosen: Make sure you conneted the amps input and speaker output correctly. For instance connect AMP1 INPUT and AMP1 OUTPUT to the same connected amplifier. Problem: No signal when switching FX loop. Make sure the FX Loop of the chosen amplifier is connected correctly to the 444s matching FX Loop.