The Master Section; Rear Panel - Hughes & Kettner Grand Meister Deluxe 40 Handbuch

GrandMeister Deluxe 40 – Manual 1.1

5 The Master Section

The Master section lets you adjust the amp's overall volume, Resonance
and Presence.
1 Master: As the name suggests, this knob puts the power amp and its
volume level at your thumb and forefinger's command. Handle it carefully
and you will enjoy a gratifying rather than an agonizing aural experience.
Heads Up: Unlike channel and effect controls, the Master knob is not
programmable! It works like any conventional knob, and its physical
position indicates the actual setting. It's always a good idea to back the
Master knob off by twisting it to the far left position before powering the
amp up.
2 Resonance: Set the Resonance knob to 12 o'clock, and you will hear the
normal resonance created by the amp-and-cabinet combination. Twisting
it counter clockwise dampens the speakers' and the cabinet's resonance
for a looser, softer sound that sweetens up clean tone. Turning the knob
clockwise intensifies resonance for a tighter, punchier low end that works
well with distorted sounds.
3 Presence: This knob controls the amount of harmonic overtones
generated by the amp – the higher the setting, the more intense the effect.
Heads Up: Resonance and Presence can be programmed into every preset,
or these controls can be used as a master control that is not changed
by switching presets, like the Master Volume control. If you want to use
Resonance and Presence as a global control, press Store and FX-Access
simultaneously for three seconds until the Store LED starts flashing. Now
the FX Access LED indicates if you are in Global Mode (flashing) or in
Preset Mode (not flashing). You can change the mode with the FX Access
button: if it does not flash (Preset Mode), press it to change to Global
Mode. If it flashes (Global Mode), press it to change to Preset Mode. To
store your changes press Store for three seconds until it stops flashing.
You'll find a quick-start guide on the bottom of the GrandMeister Deluxe
40:
GLOBAL SETTINGS MIDI SETTINGS
8

6 Rear panel

1 Speaker: GrandMeister Deluxe 40 offers one speaker output for 8 Ω to
16 Ω cabinets. Connect a speaker cabinet designed for guitar amps to this
jack.
Using a single speaker cord, you can connect any cabinet or combination
of cabinets whose total impedance ranges between 8 Ω and 16 Ω. The
formulas below serve to calculate the overall impedance (R) of two
cabinets with different impedances (R1 and R2):
• For cabinets wired in series:
R = R1 + R2
Example: If you connect two 8 Ω cabinets, the overall impedance is 16 Ω.
However, very few modern cabinets are wired in series. Parallel circuits
are far more common.
• For cabinets wired in parallel:
R = (R1 x R2) / (R1 + R2)
Here is an example with two 16 Ω cabs:
R = (16 x 16) / (16 + 16)
R = 256 / 32 = 8 Ω
2 Power Soak: This feature lets you enjoy the benefits of full-blown power
amp saturation at low volume, so you can play at home in your living room
without alienating the neighbors. Its silent recording capability lets you
capture genuine tube-driven tone via a mixing console without having to
drive speakers. And if you want to rehearse in silence at any time of day or
night, simply plug a set of headphones into the mixer. Thanks to the amp's
programmability, you can easily program your own set of studio and home
presets.
None of the buttons in this section lights up when the amp is in "normal"
operating mode (40 watts of output power). Pushing one of the four
buttons will activate the output power reducing function. When you press
the 20 W button, TSC™ disables two tubes to reduce the output power
by half, to 20 watts. When you press the 5 W and 1 W buttons, some of
the power is converted into heat to further reduce the output to 5 watts
and 1 watt respectively. In Speaker Off mode, all the power is converted
into heat and the amp is muted. Re-pressing the currently selected and
therefore illuminated button will deactivate the Power Soak and bring you
back to 40 watts of output power.
Note that if you choose to mute the amp, you do not need to connect a
speaker. Designed to enable silent recording, this option provides the full
FACTORY RESET
signal to the Red Box AE output. To protect the power amp, GrandMeister
Deluxe 40 automatically engages this mute circuit as soon as the plug is
pulled from the Speaker Out port.
Heads Up: Cutting down the power from 40 to 20 watts is done by TSC™
shutting down one pair of tubes (see section 7.1), which is why two TSC™
LEDs always light up when the amp is in 20 W, 5 W, 1 W and Speaker Off
modes. In this case, TSC™ is simply indicating that two tubes are off, and
not that it has detected a fault.