G-Lab Dual Vintage Overdrive, Руководство пользователя

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connected to the amp clean channel input , it is recommended to set tone
controls of this channel in the following way: BASS to maximum, MIDDLE at
the centre, TREBLE almost to minimum. If DVO is connected to RETURN
input of effects loop then controlling of tone at an amp is limited only to
PRESENCE control (if available).
The element determining tone is a speaker or are speakers (or rather
speaker/speakers model), their quantity, capacity and type of the cabinet.
The largest manufacturers of guitar speakers obtain in their offer wide range
of guitar speakers models. Specially are easily identified speakers
differences for overdriven tones because they obtain a lot of harmonics which
played lauder or more silently make reasonable tone difference. As higher
quantity of speakers as better performance of bass (even at the same amp
power). DVO was designed for working with speakers models usually used in
the high quality amps. The BASS +3dB boost switch allows to increase bass
level to the required one. It is recommended to switch on this boost switch
and eventual excess of bass correct by BASS control.
Some tips from G LAB web site: www.glab.com.pl
Too much bass at a neck pickup
Typical problem of many guitars equipped with humbackers is too high
level of bass from a neck pickup comparing with a bridge pickup. If a guitar is
connected to DVO or G LAB GSC it is recommended to correct this guitar
electronic circuit (see the diagram at www.glab.com.pl).
Treble disappearing while lowering a volume
Many guitars (with two volume pots) are equipped with an electronic
circuit enabling them to mix in any proportion signals from pickups (even
lowering to zero the volume of one of the pickup do not mute the guitar).
Such a circuit cuts treble while the guitar volume is lowered (as much cut as
longer is the guitar cable) and changes the guitar tone when its volume is
reasonably lowered (the resistance of the pot „short circuit” the pickup). To
solve this problem it is recommended to modify the circuit according to the
diagram at www.glab.com.pl. If after performing this step the effect of cutting
treble still exists
, then the reason can be long guitar cable (e.g. 10 meters) or
high parasitic capacitance of this cable (over 1000pF).