Vintage Revolution PedalPro Owner's Manual download pdf (Page 22)

9.3.2 Distortion

Just about every existing distortion on the market uses pre-ampliﬁers with high

gains, and a distortion section that produces distortion according to the input

signal amplitude.

In PedalPro, we do it differently. The Distortion is implemented using the

saturation of low-noise FETs instead of op-amps and diodes. The result is a

smoother, tube-like second-harmonic distortion that is rich and full of punch,

with a clearly-deﬁned sound that is totally noise free.

Two additional features

Two additional features distinguish the PedalPro Distortion from existing dis-

tortions. These are the bright switch and the low-pass ﬁlters. With the bright

switch engaged, you can create a screaming distortion. With the low-pass

ﬁlters, you can alter the amount of high tones.

gain

bright

distortion

tone

control

programm.

low-pass

filter (LP)

volume

control

OUT

brgt on

off

boost on

off

dist on

off

LP filter selector

The bright switch (parameter ‘Brgt’) excites middle and high tones before the

signal is distorted. The tone parameter (‘Tone’) blends the high tone with the

low+middle tones after the distortion. When the tone is 50%, the amount of

high tones and middle-low tones is the same. The low-pass ﬁlter selector (‘LP’)

is a programmable low-pass ﬁlter that is placed right after the tone control.

This last ﬁlter is used mainly to remove the high frequency.

Introducing the new blues-effect distortion

In standard distortions, even when it’s possible to adjust the gain of the pre-

ampliﬁcation, additional noise and unwanted op-amp processing are una-

voidable stages of the distortion process. The blues sound has never been as

warm and clear as it should have been due to these unnecessary electronics

– inherent problems with every distortion on the market.

The PedalPro makes it possible, for the ﬁrst time, to bypass the Boost (pre-am-

pliﬁer) and drive the Distortion by only the guitar signal. With the guitar signal

pumped directly into the heart of the Distortion circuit, the result is a soft

blues-style distortion, free of noise and with crystal-clear deﬁnition – an effect

tailor-made for the blues player’s musical repertoire.

PedalPro also allows you to bypass the Distortion, or both the Distortion and

the Boost. The Distortion can also be driven by the output level of the Com-

pressor – again allowing you to avoid the pre-ampliﬁcation stage.

PARAMETERS

• To enter the Distortion conﬁguration page, press the multifunction key

[10b] labelled ‘Dist’ on page 1 of the main menu.

The diagram below shows you the Distortion conﬁguration page (greyed-out

parameters are part of the Boost settings, see next section).

È1/1

Tone[ : L25]% 5.

B o Ço dB] :[

D ts Ç Á

0 P

OutD[ :]% 061. 5

Â - 10

B gr

: 0

Gts 5.

Dist – Distortion effect switch. Range: on (

), off (

)

• To add (

) or remove (

) the Distortion from your effect chain, press the

BYPASS EFFECT 1 key [10a].

Brgt – Brightness. Range: on (

), off (

)

When the brightness parameter is engaged, the sound passes through a

high-pass ﬁlter with a cut-off frequency of around 800 Hz before entering the

distortion stage.

This emphasises the middle and high tones of the distortion, creating a

‘screaming’ sound.

• To switch the Brightness mode on (

) or off (

), press the PARAM. SWITCH

key [10b].

Working with Effects: Distortion

Fig. 9-1. The Distortion

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 68 69

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Vintage Revolution PedalPro Owner's Manual Page 22

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