Front Panel Features
At the back of the manual, you'll find fold-out diagrams of the front and rear panels.
As you're reading the descriptions of the preamp's features, you'll gain a better
understandingofthetopicofdiscussionifyouunfoldandrefertothemaswego!
This option comes in handy when you want to insert another preamp or an effect
processor into aserial loopalong withthe ENGL Preamp570. Ifthe otherpreamp can
also be bypassed, you can switch between the two preamps on the fly or even run
thembothatthesametime.Ifyouwanttoconnectasecondpreamp,insertitintothe
stereo effects loop and set the Preamp Defeatstatus and FX Loop status active when
you want activate the second preamp. You could even daisy chainseveral preampsor
effectprocessors.
Clean channel Gain control. This knob determines the preamp's input sensitivity in
Cleanmode;useittosetthedesiredinputlevel.
The amount of distortion depends on your guitar's pickups and the Gain Boost (3)
setting.In Clean mode,single-coil pickupsmay beginsaturatingthepreamp when the
knob is set to about the two o'clock position; pickups with very high output levels
(humbuckersoractivepickups) will evoke mildoverdrive at evenlower settings. Ifyou
wantsqueakycleantone,simplybackofftheGainknobaccordingly.
Boosts the input sensitivity of Main Channel 1, and . The red LED above
this button lights up to indicate is on. can also be switched via
MIDIprogramchangecommandortheCustomZ-9Footswitch.
As its name would imply, serves primarily to up Clean and Crunch channel
input levels, extend both channels' gain ranges. In effect, this feature gives you two
additional variations on these two channels' basic sounds. For example, you could set
theClean channelGainknobtothehighest settingatwhichyourguitar signalremains
distortion-free, just under the preamp clipping threshold. Then when you activate
, you will overdrive the Clean preamp slightly, yielding a grittier tone well-
suitedforrockriffs.
AnotherCleanchanneloption is to use the asavolumebooster. To do this,
activate and dial ina CleanGainknobsetting, making surenot topush the
preampintoclippingzone.Considerthisyourhigh-volumecleantone,sayforclucking
lead lines. Switching off gives you a softer clean tone for chord work.
Switchbackandforthbetweenthetwoasdesired.
A tip from the designer:
Atipfromthedesigner:
Atipfromthedesigner:
Clean Crunch
Gain Boost Gain Boost
Gain Boost
Gain Boost
GainBoost
GainBoost
Gain Boost
1 PREAMP DEFEAT
2CLEANGAIN
3GAINBOOST
Thisisabypassthatcutsthepreampoutofthesignalchainwhenyoupressthebutton.
In this case, theinput signalis routeddirectly to the Send jack. The LED located above
thebuttonilluminatestoindicatethepreampisbypassed.
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