Diezel Einstein - Reasons for Dynamic Losses in the Effects Loop; Compensated out; Speaker Connections

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! process the signal, convert it back to analog, 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 so

! that 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 for an 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 Volume 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 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, then it 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.

3.2.4 Compensated Out

! ! A frequency corrected signal will leave this jack if you connect it to a mixer or recording

! device. Use it to quietly compose or send an auxiliary signal to a console etc. For quiet sessions,

! just turn the master volumes to “0”. Recording a loudspeaker through a microphone is the

! preferred choice of recording engineers. The compensated out was designed as an alternative for

! those that don’t have a studio at your ﬁngertips.

3.2.5 Speaker Connections

! ! Einstein has 5 speaker jacks. 1 for a 16 Ohm load, 2 for 2 16 Ohm loads or 1 8 Ohm load, and

! 2 for 2 8 Ohm loads or 1 4 Ohm load. Confusing? Oh yes! Just do what it says on the jacks, and

! you’ll be ﬁne.

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