A few words from the designer on your ENGL 570 Preamp's sounds and
settingsaswellassomepracticaltips:
A great deal of effort went into tuning this tremendously versatile tube preamp; I
devoted particularly painstaking attention to the details: The Clean and Crunch
channels are matched so that their Gain ranges overlap somewhat; the samegoes for
and . This is intentional, and serves very sensible sound-sculpting
purposes. For instance, higher Gain settings (in the 12-to-3 o'clock range, depending
on pickups) push the Clean channel into moderate overdrive, and activating Gain
Boostpropelsthis channelintothedirtzonethat much earlier.Thismeansyoucanuse
thischannelforultracleanchordwork,jazz-stylecompingandcluckingchicken-picked
lead lines. And courtesy of that typical tube overdrive, it means the same channel is
great grittier riffs and leads, with the amount of dirt hinging upon how hard you
attackthestrings.If you add the guitar'svolumeknobtothesonicequation,yougeta
vast spectrumof finetonal distinctions in just thisone channel.The same goes for the
Crunchchannel:Itsspectrumrangesfromclean(whenGainissetnohigherthanabout
10 o'clock, depending on pickup) to fat, wooly, and warm tube overdrive at higher
Gain settings. High-output pickups such as humbuckers will even serve up enough
oomph for punchy leads. Though these application areas overlap somewhat, the
Crunch and Clean channels are voiced differently. Crunch features an additional
triode, making it a tad more dynamic and eliciting a slightly different frequency
response.Whenusedincombinationwithhigh-outputpickups,Irecommendthatyou
roll off the bottom-end (and give a wide berth) a touch to forestall
low-endmud.
Main Channel I ( and ) voicing controls respond differently than those of
MainChannelII.Inconsequence,Isuggestthatyoustartbydialinginsettingsbetween
12and3o'clock,tweakingeachtotasteandcomparingthedifferences.Again,Iopted
for passive tone controls, which puts each knob's control range at about 10 dB. As
you're experimenting with modifying settings, you may notice that when the Crunch
or Lead channels are in Classic mode and you are pushing the preamp hard, the EQ
seemsslightlylessassertivethaninModernmode.
All these options harbor vast and musically meaningful sonic potential. I'm confident
that the Gain knobs, tone controls and sound-shaping buttons will let you conjure all
the sounds you have in mind and that you'll discover a world of tones while you're
tweaking.
On top of all that, with and , you have two voicing options for every
preamp channel: Particularly in the high-gain channels, these give you two very
distinctive distorted sounds for each channel. The contrast between the two sonic
flavors is not merely a matter of different gain levels. The structures of the saturated
signals differ, and each is fine-tuned to work its tonal magic with a specific genre.
packsamightylow-endthumpandboaststruckloadsofgainthat'sthewayto
gotoforheavy-duty,powerchordriffingtypicalofcontemporarystyles.
Note that you can tighten up and focus Lead channel tones using the two sound-
shapingbuttons and .Tweakedforafatter,warmersound,
addsa healthyhelp ofmids around the500-hertzmark. The twoparameters and
putaremarkablearrayoflow-endtweakingoptionsatyourfingertips.
Lead I Lead II
Mega Lo Punch
Clean Crunch
Modern Classic
Modern
Contour MidEdge Contour
Bass
MegaLoPunch
OntheSubjectofSoundsandSettings
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