A few words from the designer on your ENGL 570 Preamp's sounds and
settings as well as some practical tips:
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 same goes 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
Boost propels this channel into the dirt zone that much earlier. This means you can use
this channel for ultra clean chord work, jazz-style comping and clucking chicken-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
attack the strings. If you add the guitar's volume knob to the sonic equation, you get a
vast spectrum of fine tonal distinctions in just this one channel. The same goes for the
Crunch channel: Its spectrum ranges from clean (when Gain is set no higher than about
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. When used in combination with high-output pickups, I recommend that you
roll off the bottom-end (and give
a wide berth) a touch to forestall
low-end mud.
Main Channel I (
and
) voicing controls respond differently than those of
Main Channel II. In consequence, I suggest that you start by dialing in settings between
12 and 3 o'clock, tweaking each to taste and comparing the differences. Again, I opted
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
seems slightly less assertive than in Modern mode.
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.
packs a mighty low-end thump and boasts truckloads of gain that's the way to
go to for heavy-duty, power chord riffing typical of contemporary styles.
Note that you can tighten up and focus Lead channel tones using the two sound-
shaping buttons
and
. Tweaked for a fatter, warmer sound,
adds a healthy help of mids around the 500-hertz mark. The two parameters
and
put a remarkable array of low-end tweaking options at your fingertips.
Lead I
Lead II
Mega Lo Punch
Clean
Crunch
Modern
Classic
Modern
Contour
Mid Edge
Contour
Bass
Mega Lo Punch
On the Subject of Sounds and Settings
21
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