Hughes & Kettner ATTAX 100 manual Attax 100 and Midi, Installation of the MSM-1 Midi Module

ATTAX-MANUAL

To connect a signal processor:

-Connect the device's INPUT to the ATTAX SEND jack and its OUTPUT to the ATTAX RETURN jack.

-Activate the FX LOOP via the included STAGEBOARD's FX footswitch.

-Adjust the FX loop's level to the signal processor's level. Press the -10 dB switch for effects devices that are designed for guitar signals. If the switch is not pushed in, the signal level remains at line level for 19" rack-mounted processors.

NOTE: It is usually more difficult to determine levels for multi-effects processors featuring integrated "preamps." These do not allow direct access to the FX section, so the signal actually runs through two preamps. Effects processors without these "preamp" sections are more suitable for use in FX loops because the sound quality and dynamics are sub- stantially better. However, if you own one of these compact devices, dial in the FX unit's most dynamic and cleanest sound. If you want to use any of the FX unit's "preamp" sec- tion sounds, we recommend you use a separate switcher/looper to switch back and forth between the two preamps. You can eliminate the ATTAX 100 preamp from the signal chain by using the return side only to route the FX processor's output signal to the ATTAX.

-Adjust the relationship between the original signal and processed signal via the FX MIX pot located on the front panel (towards DRY = more original signal, towards WET = more processed signal).

NOTE: Some signal processors cause phase cancellations that are detrimental to the overall sound. In this case, turn the FX control all the way to the right (WET). The effects loop then operates as a conventional serial loop, i.e. the volume relationship between the original and the processed signal must be adjusted at the processor. The same holds true if you want 100% of the signal to be processed (for instance for extreme delays and volume pedals in the FX loop).

TIP: If you choose not to connect a signal processor/effects device to the FX loop, you could connect a second instru- ment or a tape deck. For instance you could connect ano- ther guitar, keyboards, drum machine, tape player, etc. for rehearsals or practice sessions. When you use the FX return as a second input channel, the FX-MIX knob is used to balance the respective volumes of your guitar and the other connected signal source. Another option is open to you if you do not connect a signal processor: use the loop as an alternate MASTER volume preset. Proceed as follows:

-Activate the FX loop.

-Dial in a separate MASTER VOLUME setting via the FX MIX pot (to the left towards DRY = volume up, to the right

towards WET = volume down).

-You can switch back and forth between the two MASTER VOLUMES via the FX footswitch. If the MIDI option is installed, you can also activate the alternate MASTER VOLUME via a MIDI command.

4.3 THE ATTAX 100 AND MIDI

Once the MSM-1 MIDI Module has been installed, you can execute the majority of ATTAX 100 switching operations via MIDI. Simultaneous switching of both the ATTAX 100 and the multi-effects processor is certainly the most convenient handling option.

Installation of the MSM-1 MIDI Module:
NOTE: The MSM-1 Module must be installed by a qualified
service technician. The following instructions are for service
personnel only.
- Unplug the amp's mains cord and speaker cables.	ENGLISH
- Remove the cover plate from the MIDI Module port on the
chassis' rear panel.
- Remove the amp chassis from the wood cabinet. For the
combo version, after unplugging the speaker cable, remove
the four retainer screws at the top of the amp. For the head
version, remove the front panel cover to access the chassis
retainer screws. Make sure that you do not damage the
reverb cable when you pull the chassis out.
- Insert the included MSM-1 ribbon cable connector plug in
the MSM 1's socket so that the color-coded wire faces the
notch on the socket. Note that the two flat cable connector
plugs face away from the module in different directions.
Select the plug that allows for the shortest signal path. Take
care you do not bend the contact points when inserting the
plug.
MSM-1 socket and indicator notch.

-Insert the MSM-1 in the module chamber and fasten it to the chassis using the four screws that you removed from the cover plate. Ensure the electronic components and the module inscriptions on the rear panel are facing right-side up.

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