User`s manual

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Effect’s loops continued:
3) Now let’s address the specific uses, advantages, disadvantages and limitations of each
loop.
a) The series loop, by nature of the fact that it breaks the direct path and processes
100% of the signal, makes it so that essentially any line level gadget will work.
You can use echo, reverb, noise reduction, tremolo, equalizers etc in this loop.
Remember to follow the procedure for setting for “unity gain”.
Advantages are:
Works fine with just about any effect.
No special requirements, other than the “unity gain” settings, are needed.
Basically Plug and Play.
Disadvantage is that your entire signal passes through the effects unit and may……
mess with your tone.
b) The parallel loop, on the other hand, has more limited uses but has the distinct
advantage of not messing with your tone. This loop is ideally suited for what are
called “time based effects”. This includes echo, reverb, chorus, flanging. These
types of effects work in parallel with your direct signal (think about the mixer
again). Now the bad news…remember the dry signal is always present. You
cannot use effects that require processing 100% such as equalizers, noise
reduction/gates, tremolo or compressor/limiters.
Advantages are:
Doesn’t mess with your tone.
Easy to adjust the effects level with the front panel knob.
Disadvantages are the limited uses and may require reprogramming your effects unit.
4) Special Notes:
a) A concern is the fact that many multi-effects units have a combination of different
effects. This means, using the parallel loop, you must be aware of which effects
can and can’t be used. For ease of operation, we recommend using the series
loop if you intend to use a mix of different “time based” and non-time based
effects in one unit.
b) Both loops are for line level operation. Though some floor type and tabletop
effects may work, the loops are designed basically for rack mount type effects
units. Not guitar level floor pedals. You will know an effect is not made for line
level if, when you plug it into the loop, you notice distortion and a loss of volume.
If you do experience a distortion problem when using the loop, often decreasing
the individual module master controls and increasing the main master setting
may remedy it.
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Power Tube Bias: