VOLUME
DRIVE
TREBLE
TREBL
VOLUME
DRIVE
MID
MID
BASS
1
PRESEN
INPUT
1
0
10
9
8
7
6
5
4
3
2
1
0
10
9
8
7
6
5
4
3
2
1
0
10
9
8
7
6
5
4
3
2
1
0
10
9
8
7
6
5
4
3
2
1
0
10
9
8
7
6
5
4
3
2
1
0
10
9
8
7
6
5
4
3
2
1
0
10
9
8
7
6
5
4
3
2
1
0
10
9
8
7
6
5
4
3
2
1
0
10
9
8
7
6
5
4
3
2
1
0
0
6
5
4
3
2
PRESENCE
HI GAIN
SEL
BASS
2
SEL
BLUES
GETTING STARTED QUICKLY
If you are like most players, you probably want to plug in your new amp and get start-
ed playing right away. You can read the rest of the manual later to learn the finer points
of operating your amp. In order to get started you will need your SX AMP, a 120 or 230
AC grounded power outlet, your instrument, and a standard guitar cord. With the amp
turned off, you may now plug it into the proper AC voltage.
Now turn all the volume and overdrive controls off and set tone controls at their mid center
position. If you have purchased the
FS44
foot switch, plug it into the rear foot switch jack
for switching the channels and effects. Now, turn the
POWER SWITCH
ON. Gradually raise
the volume and overdrive controls. Check the
BLUES SWITCH
and
HI GAIN
switch setting
before adjusting the tone controls.
FRONT PANEL
1. INPUT
Connect a 1/4” guitar cable to this input. Use a professional quality 1/4” plug shielded
guitar cord (Carvin
SH25
) no longer than 25 feet. A longer cable will reduce the overall
treble response from your pickups.
2. CHANNEL SELECT
Select the desired channel using front panel switches or
FS44
foot switch at any time.
The LED’s will let you see which channel is functioning. Use
CH1
for overdrive/lead,
CH2
for lead/blues, and
CH3
for clean playing.
CHANNEL 1 AND 2 DRIVE
3. CHANNEL INDICATOR
When channel 1 is selected, its
RED LED
will be illuminated. When channel 2 is select-
ed its
YELLOW LED
indicator is illuminated. Notice when the channel indicator is illumi-
nated, the Effects indicator (14) matches the selected channel's color. This indicates the
stored effects setting when that channel is on.
4. CHANNEL VOLUME
The volume of the drive channels are to be used as a master level controls. For partial
clean output, set the
VOLUME
control to nearly 10 and turn the
DRIVE
nearly off.
5. CHANNEL DRIVE
The channel drive delivers 12AX7 tube saturation and EL34 power tube compression.
This channel incorporates a dual section lead
DRIVE
control with 72 dB of dynamic range.
So you can go from shimmering clean to fabulous blues soft clipping to full blown over-
drive with total tube warmth. For mild 12AX7 tube emulation, set the
DRIVE
control
between 2 & 3. For some of the best saturation, set the control between 4 & 6. For full
blown drive, set the control between 6 and 10 (your guitar volume should be turned all
the way up). Because the SX AMP has a lot of gain in the
DRIVE
control, you can get
guitar feedback. If feedback is a problem, reduce the amount of
DRIVE
or move the gui-
tar away from the speakers.
6. CHANNEL 1 HI-GAIN SWITCH
The
Hi-Gain
switch adds extreme gain and super scooped mids. This setting allows for
very long sustained notes and heavily over driven power chords.
7. CHANNEL 2 BLUES SWITCH
The exclusive
BLUES SWITCH
adds the critical mid tones in the 525 Hz range that are so
important to great sounding blues-rock tone. However, when the
BLUES SWITCH
is not
used (OUT), the
SX
delivers a great “scooped” sound for hard rock metal players. It is
important that you pre-select this switch for your style of playing before adjusting the
tone controls.
8. CHANNEL BASS, MID & TREBLE
These active tone controls develop the heart of your sound. It is important that you start
at the mid point (5) on each control. The total range of these controls are a substantial 20
dB (±10 dB) with a center frequency at 80 Hz for
BASS
, 600 Hz for
MIDS
and 8k Hz for the
TREBLE
. These controls are very powerful in their effect, so take time to adjust each con-
trol for your ultimate sound.
9. CHANNEL PRESENCE SWITCH
The
PRESENCE
switch frequency range is at the very high end of the guitar spectrum (11k
Hz) for shimmering, glassy harmonics. If your sound is too dull, try the presence switch
for more highs.
CHANNEL 3 CLEAN
10. CHANNEL 3 INDICATOR
When channel 3 is select its
GREEN LED
indicator is illuminated.
11. CHANNEL 3 VOLUME
Channel switching from the Drive channels into
CHANNEL 3
gives you instant crisp, clean
sounds. Thanks to special mud-cutting circuits that work between the frequencies of 550
and 700 Hz, your guitar tones will be full and vibrant.
12. CHANNEL 3 BASS, MID & TREBLE CONTROLS
To start, set the
BASS
,
MID
&
TREBLE
controls at their center (5) position. These con-
trols are most likely to be set according to the type of pickups used (dual or single coil).
Most musicians like to reduce the
MID
s deeper bass and crisper highs.
13. CHANNEL 3 PRESENCE SWITCH
For added clarity, the
CH 3 PRESENCE
control increases the highest guitar harmonics in the
8-11k Hz range. A normal bright switch works only in the 3-5k Hz range leaving your sound
somewhat flat. Single or dual coil pickups will determine the use of this control.
DSP EFFECTS SECTION
14. SMART EFFECTS™ ADJUST
(PARAMETER)
CONTROLS
The 24-BIT processor provides a host of great sounding effects including
FLANGE
,
REVERB
,
ECHO
, &
CHORUS
. Turn up the
LEVEL
control to 5 as a starting position. Turn the
LEVEL
higher if more effect signal is desired. Use the
SELECT
and the
ADJUST
controls to
get the desired effect. Move the effects
ADJUST
and
SELECT
controls to the desired effect
for each channel. Each channel now has its own effects.
Smart Effects™
will automati-
cally store your last selected effect settings for each channel and will recall them when
you switch between channels. As you select each channel, notice that the
LED
next to the
LEVEL
control changes color to match the channel LED color to indicate that the effects
has been changed. The settings are stored in memory even when the amp has been
SX300C, SX300H AND SX300R FRONT & REAR PANEL CONTROLS
1
5
2
8
6
2
SX
300
R
GUITAR PRE-AMP
INPUT B
P
H
O
N
E
S
OUTPUT TO
GUITAR AMP
-10 dB
+4 dB
-10 dB
+4 dB
BALANCED DIRECT OUT
TO MIXER
FS-44
FOOT
SWITCH
(NOT MIDI)
SPEAKER EMULATION
UN-
BAL.
8
4
4
5
3
3
7
9
9
26
20
21
19
27
