To better understand how this switching matrix works, think of the system as having two 'channels':
one for the unprocessed guitar sound, and one for the stereo effect returns. When the returns are operated
in the MIX mode, the unprocessed guitar channel remains switched in and the effects are blended with it.
If the REPLACE mode is selected however, the unprocessed channel is switched off, and only the returns
are active. The advantage of this scheme, of course, is that the internal logic does all this switching for
you automatically when an effects loop is switched in - making it easy to use and control all categories of
effects.
More About the Switching Matrix
Conventional analog signal switching relies on field-effect transistors (FETs) in series with the signal
path. Unfortunately, FETs are notorious for adding distortion due to their nonlinear behavior. The HZ-
10SE, however, utilizes FETs in a shunt switching mode, which effectively
takes them out of the signal
path
when activated. The result - silent switching without FET-induced distortion, to insure the best
sound possible from the HZ-10SE, and your effects.
Mono Effects Mode
By depressing the 'MONO' switch on the rear panel, the effects interface operates as two mono effects
loops in parallel with the instrument signal. Both the Left and Right jacks are active and have the same
output signal. You can use this mode to obtain a split output feed - for driving a stage amp and sound
reinforcement system at the same time without using a splitter box.
Dual Foot Switch (Instrument ON/Effects)
The HZ-10SE's dual foot switch is used to turn your instrument on and activate the stereo effects loop
from your playing position. It's connected by plugging the stereo phone plug into the Foot Switch jack at
the rear of the Main Preamp Unit. When the Instrument ON switch is depressed, the LED on the foot
switch is illuminated and the instrument signal is passed through to the HZ-10SE Output. When the
Effects switch is depressed, the effect 'on' LEDs on the Main Preamp Unit (near the Return level controls)
and the foot switch are illuminated, indicating the stereo loop is active.
Note that the stereo effects
loop is only active when the Instrument ON switch is also depressed. If the Instrument is 'off' and the
Effects foot switch has been depressed, the LED on the foot switch will indicate the loop is selected, but
it will not be activated (or the front panel LEDs turned on) until the instrument ON switch is also
depressed. This is done so the L and R Outputs of the HZ-10SE are muted completely when the Instrument
switch is 'off'.
Although the foot switch is supplied with a 18' cable, much longer cable runs are possible. Use a 3 wire
unshielded extension cable with 1/4" stereo connections (a stereo feed in a 'snake' cable will also work
well).
Hooking up your Instrument Tuner
I t is conveni ent to use t he Eff ect Send out put to dri ve y our tuner.
Since the Send Output is always
active,
y ou can t une your i nstr ument wh en y ou'v e swit ch ed off t he i nstr ument wi th t he f oot swit ch
.
The low output impedance allows you to 'y' off of the Send Output (or use the extra send output jack) without
reducing the signal level to your effects.
