Genz-Benz 7100 ユーザーガイド
FRONT PANEL FEATURES
DRIVE SWITCH
Selects either TUBE or CLEAN channel. Red LED
indicates the Tube channel is on. Footswitch jack insertion(rear panel)
cancels the operation of this switch.
cancels the operation of this switch.
MIX SWITCH
When this switch is in the “UP” position, both channels
(Tube and Clean) are in parallel and will be heard together when the Tube
Drive switch is set to the Tube Drive position (up). With the Clean/Drive
switch set for the Clean channel (down), only the clean channel will be
heard. When the MIX switch is in the “down” position, the Tube Drive
switch will select separately between Tube and Clean Channels.
Drive switch is set to the Tube Drive position (up). With the Clean/Drive
switch set for the Clean channel (down), only the clean channel will be
heard. When the MIX switch is in the “down” position, the Tube Drive
switch will select separately between Tube and Clean Channels.
INPUT JACK
Input allows plenty of headroom for all types of guitars.
DRIVE
Adjusts the amount of gain that drives the tube preamp. Careful
attention has been given to produce the most overdrive/sustain possible
without creating unnecessary noise and feedback.
without creating unnecessary noise and feedback.
RED LED
Indicates that the Tube Drive channel has been selected.
TUBE MASTER
Adjusts the amount of output volume from the Tube
Drive channel.
HI, MID, LOW
Classic, passive 3-band EQ to enhance the Tube
Drivers unique tonal response. Freq: HI 3.5K Hz(upper shelving), MID
800Hz (center), LOW 150Hz(lower shelving).
800Hz (center), LOW 150Hz(lower shelving).
CLEAN GAIN
Adjusts the gain level of the clean channel. Although
this channel is all FET, extremely warm tonality is produced thanks to the
MosValve power section. Lows are especially well-balanced.
MosValve power section. Lows are especially well-balanced.
HI, MID, LOW I
dentical operation and frequencies to the Tube Drive
channel, however the overall baseline EQ has been optimized for clean
and rhythm styles.
and rhythm styles.
REVERB
Adjusts amount of reverb signal mixed into the output.
Reverb can be canceled anytime by the footswitch, or by turning the
control to “0”.
control to “0”.
POWER
Supplies mains power to the amp. Be certain that the proper
voltage is supplied to the amp. The rated voltage for your unit is indicated
just below the fuse holder on the rear panel.
just below the fuse holder on the rear panel.
REAR PANEL FEATURES
DUAL VOLTAGE SWITCH
This amp is equipped with a dual voltage
transformer. In the USA always use the 115V position. For Europe use the 230V
position and the correct fuse value.
position and the correct fuse value.
POWER INLET SOCKET
USA:Connect only to 110-120V, 60Hz receptacle
with the detachable power cord supplied. Always use a grounded outlet to avoid
operating problems and to increase safety margin.
operating problems and to increase safety margin.
FUSE
Use fast-blo 4 amp for 120V US versions or 2 amp for 220-240V
versions. Always replace with the same type and size fuse.
SPEAKERS
Use this jack for speaker output only. This combo is supplied with 2-
8 ohm speakers, providing powerful high output performance. Minimum total
impedance is 4 ohms. Lower impedance operation may eventually overheat and
damage the amp, voiding the warranty.
impedance is 4 ohms. Lower impedance operation may eventually overheat and
damage the amp, voiding the warranty.
LINE OUT
Attenuated signal from the output of the amp. All of the tone of the amp,
including the output is available at this jack. Potential applications: Slaving to another
combo or power amp and recording.
combo or power amp and recording.
FOOT SWITCH
Stereo-type jack which switches both Channel and Reverb. The
tip of the jack is Reverb; ring is Channel. Note: Electronic and MIDI switchers-Channel
switch is VC positive to ground. Reverb is simple shorting.
switch is VC positive to ground. Reverb is simple shorting.
EFFECTS SEND
Proper send level for most effects devices. Connects to the “in”
or guitar jack of your effects. Can also be used as a Direct Input to a mixing console or
recorder.
recorder.
EFFECTS RECEIVE
Unity buffered input from effects devices. Connects to the
“out” or “amp” jack of your effects. Can also be used as a direct Power Amp section
input. Note: A common problem many encounter while using effects devices is “ground
loops”. A ground loop is often caused when an effects device, mixing board or tape
recorder equipped with a 3-prong AC cord are connected together with audio cables.
The electrical difference between the AC ground (at the AC plug) and the signal ground
(audio cords) is amplified. This may result in increased hum levels and in some cases
high-pitched squeals or oscillation at a high gain settings of the amp. The solution is
often to use the same outlet strip for all equipment rather than plugging into various
separate outlets. In extreme cases it may be necessary to isolate the AC grounds. If
this is attempted, consult a qualified technician to insure safety. Tube Works does not
recommend the disabling of any 3rd prong grounding plugs.
input. Note: A common problem many encounter while using effects devices is “ground
loops”. A ground loop is often caused when an effects device, mixing board or tape
recorder equipped with a 3-prong AC cord are connected together with audio cables.
The electrical difference between the AC ground (at the AC plug) and the signal ground
(audio cords) is amplified. This may result in increased hum levels and in some cases
high-pitched squeals or oscillation at a high gain settings of the amp. The solution is
often to use the same outlet strip for all equipment rather than plugging into various
separate outlets. In extreme cases it may be necessary to isolate the AC grounds. If
this is attempted, consult a qualified technician to insure safety. Tube Works does not
recommend the disabling of any 3rd prong grounding plugs.