background image

4

On

Off

On

Standby

Channel

Select

Channel A

Channel B

Master

Presence

Mode

Level

Level

BASS

MID

TREBLE

GAIN

BASS

MID

TREBLE

VOLUME

INPUT

DSP

0

10

0

10

0

10

0

10

0

10

0

10

0

10

0

10

0

10

0

10

0

10

V F X

V F X

V F X

SLAP

BACK

CHORUS

DELAY 1

DELAY

2

DELAY•

REV 1

DELAY•

REV 2

VIBRATO

FAST

VIBRATO

SLOW

BYPASS

T-WAH

CHO•

REV

SLAP

CHORUS

CHO•REV• 

DELAY

SMALL

REV

MED

REV

LARGE

REV

1

2

3

4

5

7

8

9

10

11

12

13

14

15

16

17

6

The Front Panel:

V F X 5 1 1 2 / 5 2 1 2   G u i t a r   A m p l i f i e r

1. Input: Connect your instrument
here by means of a shielded signal
cable.

2.. Volume: Use this control to
adjust the output level of Channel
A.

3. Treble: Use this control to adjust
the output level of the high frequen-
cies for Channel A. This control
provides  an adjustment range of
30dB at 10kHz.

4. Mid: Use this control to adjust
the output level of the middle fre-
quencies for Channel A. This con-
trol provides  an adjustment range
of 6dB at 600Hz.

5. Bass: Use this control to adjust
the output level of the low frequen-
cies for Channel A. This control pro-
vides  an adjustment range of 30dB
at 80Hz.

6. Channel Select: This switch,
when depressed, activates
Channel B. Channel A is active
when the switch is in the out posi-
tion. 

7. Gain: Use this control to adjust
the gain for Channel B. With the
control towards the counter clock-
wise position, the gain is low and
very little distortion is present. As
you rotate the control clockwise the
gain increases, producing more
overdrive distortion and a higher
output volume level.

8. Treble: Use this control to adjust
the output level of the high frequen-
cies for Channel B. This control
provides  an adjustment range of
10dB at 4kHz.

9. Mid: Use this control to adjust
the output level of the middle fre-
quencies for Channel B. This con-
trol provides  an adjustment range
of 10dB at 1kHz.

10. Bass: Use this control to adjust
the output level of the low frequen-
cies for Channel B. This control
provides  an adjustment range of
12dB at 100Hz.

11. Level: Use this control to adjust
the output level of Channel B.

12. DSP Mode: Use this control to
select which of the following digital
effects to apply to the signal.

BYPASS

no effect

SMALL REV

small room reverb

MED REV

medium room reverb

LARGE REV

large hall reverb

SLAPBACK

short slapback echo

DELAY 1

short delay w/regen

DELAY/REV 1

short delay w/reverb

DELAY 2

long delay w/regen

DELAY/REV 2

long delay w/reverb

VIBRATO SLOW

slow smooth vibrato

VIBRATO FAST

fast vibrato/tremolo

CHORUS

medium chorus

CHO/REV

medium chorus w/reverb

CHO/REV/DELAY med cho w/reverb/delay
SLAP CHORUS

slapback echo w/chorus

T-WAH

touch-sensitive wah-wah

13. DSP Level: Use this control to
adjust the level of the DSP effect.
With the control rotated fully count-
er clockwise, no effect will be audi-
ble. As the control is rotated clock-
wise the amount of the effect is
increased. 

14. Presence: Use this control to
adjust the overall brightness and
punch of the output signal.

15. Lamp: This lamp illuminates
when the amplifier is turned on.

16. On/Standby Switch: Use this
switch to activate the amplifier after
the On/Off Switch (#17) is turned
on. Always turn this switch OFF
first and ON last! Turn the
On/Off Switch (#17) on at least
30 seconds before turning on
the Standby switch. 
During short
breaks you should turn this switch
off and leave the On/Off Switch on.
This will help prolong the life of the
amplifier’s tubes.

17. On/Off Switch: Use this switch
to turn the amplifier on and off.
Always turn this switch ON first
and OFF last! Turn the Standby
switch (#16) on at least 30 sec-
onds after turning on the On/Off
Switch.

Summary of Contents for VFX5112

Page 1: ...U S E R S G U I D E ...

Page 2: ...RAIN OR MOISTURE SERVICE MUST BE PERFORMED BY QUALIFIED PERSONNEL OUR AMPLIFIERS ARE CAPABLE OF PRODUCING HIGH SOUND PRESSURE LEVELS CONTINUED EXPOSURE TO HIGH SOUND PRESSURE LEVELS CAN CAUSE PERMANENT HEARING IMPAIRMENT OR LOSS USER CAUTION IS ADVISED AND EAR PRO TECTION IS RECOMMENDED IF UNIT IS OPERATED AT HIGH VOLUME CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN WARNING TO REDUCE THE RISK OF FIRE...

Page 3: ... read the information contained in this manual before you begin playing And Thank You for choosing a V Series amplifier Declaration Of Conformity 35 Effective 01 01 2001 Manufacturer s Name SLM Electronics Production Facility 11880 Borman Drive St Louis MO 63146 USA Production Facility 700 Hwy 202 W Yellville AR 72687 USA Shipping Facility 1400 Ferguson Ave St Louis MO 63133 USA Office Facility 14...

Page 4: ...put level of the middle fre quencies for Channel B This con trol provides an adjustment range of 10dB at 1kHz 10 Bass Use this control to adjust the output level of the low frequen cies for Channel B This control provides an adjustment range of 12dB at 100Hz 11 Level Usethiscontroltoadjust the output level of Channel B 12 DSP Mode Use this control to select which of the following digital effects t...

Page 5: ...dance of the speaker s The impedanceofthespeaker s inside the amplifier is 16 ohms The switch is set at the factory to the 16 ohm position When a 16 ohm extension speaker cabinet is used see 22 thisswitchmustbesetto the 8 ohm position Use the tip of a small flatblade screwdriver to slide the switch to the proper position 8 OHM POSITION Impedance switch as seen from below 16 OHM POSITION 19 20 21 2...

Page 6: ...ed a number of outstanding solid state amplifiers that sound very very good Some use special circuitry which enables them to simulate the distortion characteris tics of a tube amplifier However the tube amplifier still held in the highest esteem by many musicians offers a classic vintage sound in a contemporary market Tube Types And Usage Tube amplifiers are based primarily on two types of tubes p...

Page 7: ...gain starts to hum lacks sensitivity or feels as if it is working against you the preamplifier tubes may need to be replaced The power tubes are subjected to considerably more stress than the preamplifier tubes Consequently they almost always fail degrade first If deteriorating power tubes aren t replaced they will ultimately fail Depending on the failure mode they may even cause severe damage to ...

Page 8: ...proper biasing If the bias is set too high overbiased the sound from the amp will be distorted at all levels If the bias is set too low under biased the power tubes will run hot the plates inside the tubes may glow red due to excessive heat and the sound from the amplifier will lack power and punch The excessive heat greatly reduces tube life from a few days to as little as a few hours in extreme ...

Page 9: ...eplacing the output tubes unless the amplifier is equipped with self biasing circuitry This should be done ONLY at a qualified service center Improper biasing could result in the tubes running too hot which greatly reduces the life of the tubes or too cold which results in dis torted sound regardless of level settings Do not play the amplifier if it exhibits these symptoms get the bias checked adj...

Page 10: ...MID TREBLE GAIN BASS MID TREBLE VOLUME DSP 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 SLAP BACK CHORUS DELAY 1 DELAY 2 DELAY REV 1 DELAY REV 2 VIBRATO FAST VIBRATO SLOW BYPASS T WAH CHO REV SLAP CHORUS CHO REV DELAY SMALL REV MED REV LARGE REV Channel Select Channel A Channel B Master Presence Mode Level Level BASS MID TREBLE GAIN BASS MID TREBLE VOLUME DSP 0 10 0 10 0 10 0 10 0 10 0 1...

Page 11: ...r System Block Diagram INPUT GAIN CHANNEL A CHANNEL B V1A EL34 V5 EL34 V6 V4A V4B IMPEDANCE SELECT LINE OUT LINE IN CHANNEL SELECT V1B V2A VOL V2B V3A V3B TREBLE LEVEL BASS MODE LEVEL MID TREBLE BASS MID DSP EXT SPEAKER SPEAKER 11 ...

Page 12: ...212 2 X 12 60w 8 ohm 1 75 voice coil diameter 38oz magnet PREAMP TUBES 4 12AX7A POWER TUBES 2 EL34 POWER REQUIREMENTS 120 VAC 60 Hz 200VA 100 115 VAC 50 60 Hz 200VA 230 VAC 50 60 Hz 200VA SIZE AND WEIGHT VFX 5112 23 W x 19 H x 10 D 48 lbs VFX 5212 28 W x 21 H x 11 D 58 lbs The VFX 5112 5212 is covered with a durable Tolex material wipe it clean with a lint free cloth Never spray cleaning agents on...

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