Rear Panel Features
At the back of the manual you'll find a folded page offering diagrams of the front and
rear panels. Please unfold and refer to it as you read through the descriptions of
features and functions!
Plug the mains cord in here. For European models, use a standard non-heating
equipment connector cable.
alongside
The rear chamber contains the mains fuse and in the front chamber, a spare fuse.
To learn if a given feature may be controlled remotely, refer to its description herein.
You'll find a configuration table showing the Retro Tube Amp's functions on page 23.
The ENGL Z-9 Custom Footswitch is optional.
Plugging a jack plug into the S.A.C. Port disables the Gain Boost and the
Channel switching functions controlled by the buttons (14, 15) arrayed on the amp's
front panel. What's more, it also disables the footswitch jacks' (24) remote-control
capability. In other words, when a Z-9 board is plugged in, it has priority over the amp's
Gain Boost and Channel switching controls as well as Gain Boost and Channel
switching via a footswitch connected to jack (24).
Never link two S.A.C. Ports of Engl amps via an Y-adaptor to a Z-9 Custom
Footswitch; this can cause ground hummming noise and damage the internal circuits!
Try out the ENGL Z-9 Custom Footswitch - chances are you'll love the remote-control
convenience for your RetroTube amp. Based on a rather clever switching concept, it
Mains Connector (
CAUTION: Make sure you use an intact mains line cord with a grounded plug!
Before you power the amp up, ensure the voltage value printed the mains
socket is the same as the current of the local power supply or wall outlet.
Please also heed the guidelines set forth in the separately included pamphlet,
.
20 Mains Fuse Box:
CAUTION: ALWAYS make sure replacement fuses are of the same type and have the
same ratings as the original fuse! Please refer to the fuse ratings table.
21 Footswitch: Serial Amp Control Port (S.A.C.)
Heads up:
CAUTION: Connect only the ENGL Z-9
to this 6.3 mm (¼") stereo jack! Connecting any other
switching device may damage it and/or the amp's circuitry!
Insert and remove the Z-9's cable to and from the S.A.C. Port only when the amp is
switched off!
Please note:
A tip from the designer:
Instructions for the Prevention of Fire, Electrical Shock and Injury
19 AC Power Inlet; IEC - C14 connector)
This serial data input serves to control six of the amp's switching functions remotely. It
accepts the optional ENGL Z-9 Custom Footswitch as well as the optional ENGL Z11-
S.A.C. MIDI Switcher for use as a MIDI interface. Use a cord equipped with stereo 6.3
mm (¼") jack plugs to connect this input to the S.A.C. Out on the Z-9 Footswitch or Z11-
S.A.C. MIDI Switcher. The custom-designed Z-9 and the MIDI Switcher (in MIDI
interface mode) let you switch every amp feature designated as footswitchable in this
manual. You can configure the Z-9 Footswitch to control
and and two further features directly.Master A/B
or the ENGL Z11-S.A.C. MIDI
Switcher (S.A.C. Out)
the two channels in
combination with Gain Boost
Footswitch
11
(12 pages)
(37 pages)
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