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9

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14

The Front Panel:

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

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

3. Clean/Overdrive: This switch, when de-
pressed, selects the Overdrive Channel.
When this switch is in the out position, the
Clean Channel is selected.

4. Overdrive Gain: Use this control to
adjust the gain of the Overdrive Channel.
With the control towards the counter clock-
wise position, the gain is low and very little
distortion is present. As you rotate the con-
trol clockwise the gain increases, produc-
ing more overdrive distortion and a higher
output volume level.

5. Treble: Use this control to adjust the out-
put level of the high frequencies. This con-
trol provides 12dB of cut or boost at 6kHz.

6. Boost: This switch, when depressed,
increases the output by 10dB at 900Hz,
giving the middle frequencies more punch.  

7. Mid: Use this control to adjust the output
level of the middle frequencies. This control
provides 10dB of cut or boost at 1kHz.

8. Bass: Use this control to adjust the out-
put level of the low frequencies. This con-
trol provides 8dB of cut or boost at 150Hz.

9. Presence:

This switch, when

depressed, increases the output level of
the high frequencies by 8dB at 10kHz, giv-
ing a more “glassy” sound to the amplifier.
This helps the output of the amplifier cut
through “acoustically dead” rooms.

10. Overdrive Level: Use this control to
adjust  the output level of the Overdrive
Channel.

11. Reverb: Use this control to adjust the
amount of reverberation applied to the sig-
nal. With the control fully counter clockwise
no reverb is applied. As you rotate the con-
trol clockwise the amount of reverb increas-
es.

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

13. On/Standby: Use this switch to acti-
vate the amplifier. The On/Off switch (#14)
should be turned on first. Allow 20 seconds
for the amplifier to warm up before turning
the Standby switch on.

14. On/Off: Use this switch to turn the
amplifier on and off. This switch should be
turned on at least 20 seconds before turn-
ing the Standby switch (#13) on.

G u i t a r   A m p l i f i e r   H E A D

Summary of Contents for V30H

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

Page 2: ...AIN 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: ...hich can be used to piggy back the amplifier onto the top of the Crate V212T Guitar Speaker Enclosure see page 6 for additional information Like all St Louis Music amplifiers your V30H is designed by musicians and built using the finest components available Extensive testing confirms that this amplifier is the absolute best it can be In order to get the most out of your new amplifier we strongly u...

Page 4: ... of the middle frequencies This control provides 10dB of cut or boost at 1kHz 8 Bass Use this control to adjust the out put level of the low frequencies This con trol provides 8dB of cut or boost at 150Hz 9 Presence This switch when depressed increases the output level of the high frequencies by 8dB at 10kHz giv ing a more glassy sound to the amplifier This helps the output of the amplifier cut th...

Page 5: ...r amplifier or powered monitor or to the input jack of an exter nal signal processor 18 Line In Use this 1 4 jack to connect the output of an external effects proces sor to the amplifier 19 8 Ohm Speaker Use this jack to connect the external cabinet to the amplifier by means of a heavy duty Class 2 wiring speaker cable terminated with 1 4 plugs The total impedance rat ing for the external speaker ...

Page 6: ...e s V212T enclosure The V30H has slide out mounting hardware which lock onto the posts on the top of the V212T Loosen the knobs on the posts slide the amp in place and lock down the knobs The piggy backed amp can be rolled around on its casters by the amp head s handle but do not try to pick the combo up by the amp head or its handle ...

Page 7: ...designed 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 t...

Page 8: ...loses 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 dama...

Page 9: ... with 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 ex...

Page 10: ...fter replacing 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 check...

Page 11: ...tandards 47CFR 15 107 and 15 109 Class A C tick designation Level 2 ABN 56748810738 ARBN N222 KETI standard K60065 limited model approval Compliance Support Contact SLM Electronics Attn R D Compliance Engineer 1901 Congressional Drive St Louis Missouri 63146 Tel 314 569 0141 Fax 314 569 0175 System Block Diagram GUITAR INPUT OVERDRIVE GAIN REVERB LEVEL REVERB DRIVE 8 OHM SPEAKER EFFECTS SEND EFFEC...

Page 12: ...S 4 EL84 POWER REQUIREMENTS 120 VAC 60 Hz 35VA 100 115 VAC 50 60 Hz 35VA 230 VAC 50 60 Hz 35VA SIZE AND WEIGHT 21 W x 7 3 4 H x 8 1 8 D 25 5 lbs The V30H is covered with a durable Tolex material wipe it clean with a lint free cloth Never spray cleaning agents onto the cabinet Avoid abrasive cleansers which would damage the finish Specifications and information in this manual are subject to change ...

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