Stageboard Channel Select; Midi; Fx Loop; Tube Safety Control (Tsc™) - Hughes & Kettner Coreblade Manual De Instrucciones

12
It does not light up if the internal effects are bypassed; that is, the FX ON button
is not engaged.
HEADS UP: The footswitch disables the front panel FX ON button. A connected
footswitch always has priority. The footswitch's current status is valid when you
switch channels. The front panel FX ON button then serves as an LED display
indicating the footswitch's status.

5.4 STAGEBOARD CHANNEL SELECT

This fall-back footswitch connector will help get you through the gig if you left
your MIDI board behind. It lets you switch remotely between two channels, say
CLEAN and ULTRA II, using a standard one-way footswitch such as the Hughes
& Kettner® FS-1. A two-way footswitch such as the Hughes & Kettner® FS-2 may
also be connected. In this case, button 1 switches channels, and button 2 does
nothing.
C o r e b l a d e
FS-4 footswitch that ships with Hughes & Kettner® Trilogy and Matrix amp. It
lets you switch all four channels.
HEADS UP: The footswitch changes the channels only, and not presets.

5.5 MIDI

C o r e b l a d e comes with a standard MIDI interface that communicates
with other MIDI devices and accepts the included FSM 432.
5.5.1 MIDI IN
Though this is a 7-pin interface, you can connect a standard 5-pin MIDI cable.
The two additional terminals serve to supply phantom power to the FSM 432.
HEADS UP: The FSM 432 comes with a 7-pin MIDI cable. You do not need a
power source for the FSM 432 because phantom power is provided. If you wish
to use a 5-pin MIDI cable, you will however need a wall-wart. It provides an
innovative mains port that accepts any AC or DC adapter rated for 9 to 15 volts.
5.5.2 MIDI THRU
This port forwards signals patched into MIDI IN to other devices. You can
connect any external MIDI-enabled signal processor that you wish to switch
synchronously with C o r e b l a d e

5.6 FX LOOP

If you wish to use an outboard effect device, you can insert it into the FX LOOP.
5.6.1 FX SEND
Connect this jack to your effects processor's input.
5.6.2 FX LEVEL
This button the FX SEND's output level by 10 dB and boosts FX RETURN's
input sensitivity by 10 dB to match the FX loop to the effect device's input level.
Press this button when using processors designed to handle instrument levels.
5.6.3 FX RETURN
Connect this jack to your effects processor's output.
5.7 SENSIVITY
The SENSIVITY knob controls the noise gate's response. The programmable
NOISE GATE button on the front of the amp activates and deactivates the noise
gate for each preset. See section 4.5 to learn more about this.
5.8 TUBE SAFETY CONTROL (TSC™)
Chapter 6 is devoted to the Tube Safety Control - read it to get all the details.
C o r e b l a d e
even accepts the four-way Hughes & Kettner®
.

5.9 HUM BALANCE

This trim knob adjusts the balance to minimize hum after swapping preamp
tubes. See chapter 8.
6
TUBE SAFETY CONTROL (TSC™)
TSC™ adjusts bias to improve C o r e b l a d e
and extend power tubes' life. It does this automatically, so there is nothing for you
to do.
and section, 6.4 Matching Tubes with TSC™, to get all the facts straight about
replacing and matching tubes. This knowledge will spare you a lot of hassle and
effort.

6.1. The Basics Briefly Explained

NOTE: We developed TSC™ exclusively for power output tubes, and this chapter
addresses only this type of tube.
What's up with bias, ratings, and matching?
In a tube amp, bias describes the amount of idle current flowing in the tube grid.
A technician should adjust or re-bias this idle current regularly, and certainly
after replacing output tubes with others bearing different ratings. Biasing is
necessary because tubes and their component parts are delicate, their tolerances
vary somewhat, and they have different bias points and thus different ratings.
Vibrations, temperature variations, and plain old aging can even affect a tube's
bias point over its lifetime. If several tubes share the same bias point or rating, we
say they are matched. And we always use matched tubes in a guitar amp to ensure
they bear the load equally, which reduces wear, extends tube life, and yields better
tone. Courtesy of TSC™, all tubes in
even if they have different ratings.
TSC™ is a very different breed of auto-biasing solution. For one, it really is
automatic, meaning that you don't have to activate it manually. For another, it
readjusts bias only when it makes sense to do so – when the amp is in fact idling
every time it is powered up and you take a break from playing! And TSC™ takes a
break while you play to ensure it doesn't adversely affect your tone!

6.2 The Benefits of TSC™

1) You can swap tubes easily, quickly, and safely:
All the hard work of biasing gets done automatically, so swapping tubes is an
exercise in speed and convenience. This is a big help not only in case of a defect,
but also when you want to compare different brands, different ratings, and even
different types of replacement tubes.
and 6L6GC tubes, even in mixed combinations! Consider this before replacing
tubes: We designed the amp's factory presets specifically for EL 34 tubes. Also, if
another type of tube is installed, you will have to modify your presets to achieve
the best audio results.
CAUTION: Replacing tubes is a job best left to qualified professionals! TSC™
spares the technician the biasing effort, but the service guidelines in chapter 8
remain valid and must be followed.
's tonal and technical stability
It also offers some more hip
features for dealing with different
makes and types of power output
tubes (EL34 and/or 6L6GC)
that are likely to interest you. If
not, simply handle the amp as
you would any conventional tube
amp. But please read and heed
chapter 8, Replacing Tubes, Service
and Preventive Maintenance,
share the same load
C o r e b l a d e
accepts all type EL34
C o r e b l a d e