Diezel Schmidt, Руководство пользователя

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3.2.2 Parallel or Serial
Which is better for you? Read on.There are 2 ways to handle effects signals. The
serial loop interrupts the signal path of the Schmidt and the signal is sent to the
processor, becomes processed, then sent back to the serial return into the power
amp. Digital effects units often digitize this signal once received, then process the
signal, convert it back toanalog, then send it to the amp. This is called ADA (analog
digital analog) conversion. It is necessary for digital effects units digitize your guitar
signal sothat the processor can read and understand signal. Your tubes, however,
need an analog signal to operate, so the processor converts the signal back to
analog before it goes back to the amp. Generally, even in highest quality effects
processors, this causes a change in the original signal, typically a loss of tonality
and warmth, also noticeable as a “harder” sound. When you use the serial loop
foran effects unit like this, then your signal will have been ADA converted at least
once. Tone junkies and vintage freaks alike will more than likely have hives
developing by now. But - as always, there is a better way. Use the Parallel loop and
the Mix control in the rear determines how much effect signal is being added to the
original signal, which now still flows through the amplifier. There is always an
analog connection between the send and return jacks; a parallel loop! Important:
You must set the mix control on the effects unit to 100% wet when using the
parallel operation mode of the loop. Otherwise there will be nasty phasing problems
resulting in unsatisfactory tone. The signal portion that is unaffected by the mix
control in the effects unit would reach the amplifier at a different time due to the
cabling, and cause phasing cancellations.
3.2.3 Top 5 Reasons for dynamic losses in the effects loop
Many different factors can be responsible for loss of dynamics, aside from those
mentioned in 3.2.2 (ADA conversion). A vital point that often leads to frustration is
a maladjusted output level of an effects unit. If the output level is too high, the unit
will cause unwanted distortion in the power amp. If it is too low, then the rig
will not sound punchy and might get lost in the band sound. When used in the
serial loop, the output of the effects unit determines the ultimate drive signal
strength of the power amp. The output level should be matched to give the best
possible sound with all channels without over driving the power amp section.
(Unless this is desired for power amp distortion) Headroom adjustments of 10% are
usually sufficient.