Preamp - Boss BR-600 Owner's Manual

Preamp

Adjust the distortion and tone of the guitar sound.
* When all Bass, Middle and Treble are set to "0," no sound
may be produced depending on the "Type" setting.
On/Off
Turns the preamp effect on/off.
Type
This sets the type of the preamp. The distortion and tone
characteristics of each amp are as shown below:
■ With "COSM GTR AMP," "COSM COMP
GTR," or "VO+GT AMP" algorithms
JC-120 The sound of the Roland "JC-120," a
favorite of pro musicians around
the world.
CLEAN The sound of a conventional built-in
tube amp.
CRUNCH Allows you to obtain a crunch effect
that creates a natural distortion.
MATCH A simulation of the latest tube amp
widely used in styles from blues
and rock.
VO DRV Allows you to obtain the Liverpool
sound of the 60's.
BLUES A lead sound with a rich middle
ideal for Blues.
BG LEAD The sound of a tube amp typical of
the late '70s to '80s, characterized by
a distinctive mid-range.
MS (1, 2, 1+2) The sound of a large tube amp stack
that was indispensable to the British
hard rock of the 70's, and is used to
this day by many hard rock guitar-
ists.
A trebly sound created by using in-
1
put I of the guitar amp.
2 A mild sound created by using in-
put II of the guitar amp.
The sound of connecting inputs I
1 + 2
and II of the guitar amp in parallel,
creating a sound with a stronger
low end than I.
SLDN A tube amp sound with versatile
distortion, usable in a wide range of
styles.
METAL The sound of a large tube amp, suit-
able for heavy metal.
METAL D A high gain and powerful metal
sound.
■ With "COSM BASS AMP" or "COSM
COMP BSS" algorithms
AC
AMG
OFF, ON
Volume
Adjusts the volume and distortion of the amp.
Bass
Adjusts the tone for the low frequency range.
Middle
Adjusts the tone for the middle frequency range.
* If you have selected "MATCH" or "VO DRV" as the type,
the middle control will have no effect.
Treble GUITAR AMP: 0 – 100, BASS AMP: -100 – +100
Adjusts the tone for the high frequency range.
Presence
This can be selected in the "COSM GTR AMP," "COSM
COMP GTR," or the "VO+GT.AMP" algorithm.
Adjusts the tone for the ultra high frequency range.
* If you have selected "MATCH" or "VO DRV" as the type,
raising presence will cut the high range (the value will
change from "0" to "-100").
Master
Adjusts the volume of the entire preamp.
Bright
(with JC-120, CLEAN, CRUNCH, BLUES, BG LEAD, AC,
AMG)
Turns the bright setting on/off.
OFF :
Bright is not used.
ON :
Bright is switched on to create a lighter and crisper tone.
Gain
Adjusts the distortion of the amp. Distortion will
successively increase for settings of "LOW," "MIDDLE"
and "HIGH."
* The sound of each Type is created on the basis that the Gain
is set to "MIDDLE." So, normally set it to "MIDDLE."
Insert Effect Parameter Functions
It produces the vintage sound of an
early transistor amp.
It produces the sound of a large
double-stack vacuum tube amp
with ultra-lows and a crisp edge.
GUITAR AMP: 0 – 100, BASS AMP:-100 – +100
GUITAR AMP: 0 – 100, BASS AMP:-100 – +100
LOW, MIDDLE, HIGH
0 – 100
0 – 100
0 – 100
OFF, ON
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