B-52 ST100A User Manual

IMPORTANT SAFETY

INSTRUCTIONS!

1) Read these instructions.

2) Follow all instructions.

3) Keep these instructions.

4) Heed all warnings.

5) DO NOT turn on the ST-100A without the loudspeaker connected.

6) Do not use the ST-100A near water. Be extra cautious when moving the ST-100A during rain or while transporting it over wet surfaces as water might splash onto the amplifier.

6) Clean only with dry cloth.

7) Do not block any ventilation openings and operate in accordance with manufacturer’s instructions.

8) Do not install near heat sources such as radiators, stoves or other devices that may produce heat.

9) Do not defeat the safety purpose of the polarization or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding-type plug has two blades and a third grounding prong. The wide blade or the third prong is provided for your safety. If the provided plug does not fit your outlet, consult an electrician for replacement of the obsolete outlet.

10) Protect the power cord from being walked on or pinched, particularly at the plug and the point where it exits the ST-100A amplifier.

11) Only use attachments / accessories specified by B-52 Professional.

12) Unplug the ST-100A during lightning storms and when not in use.

13) Refer all servicing to qualified personnel. Servicing is required when the ST-100A has been damaged in any way such as when power-cord or plug is damaged, liquid has been spilled into the amplifier, the unit has been exposed to moisture or rain, does not operate normally, or has been dropped.

14) To reduce the risk of fire or electric shock, do not expose the ST-100A to rain or moisture.

15) Moisture can damage the ST-100A and can cause corrosion of electrical contacts.

16) Keep the unit out of extended or intense direct sun light. No containers filled with any type of liquid should be placed on or near the ST-100A.

17) Never remove the front or rear panels of the ST-100A while it is connected to an electrical outlet.

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	INSIDE THIS INSTRUCTION MANUAL
Important Safety Instructions /
Features...............................................................				2
Important Information ........................................				3
ST-100A Controls................................................				4-5
Set-up & Warranty Information .........................				5-7
Contact Information ...........................................				8
	ST-100A FEATURES
This B-52 Stealth Series ST-100A has a 100% pure, all-tube
signal path, incredible tone and a wide array of guitarist friend-
ly features. It combines Russian Sovtek 6L6 power tubes with
12AX7 preamp tubes for solid tube tone and classic breakup.
This roadworthy head provides serious musicians with
monstrous gain, extreme levels of distortion and a sparkling
clean channel. Selectable solid-state or tube rectification
through a Sovtek 5AR4 ensures complete tonal authenticity.
● 1/4” high input jacks
●	Overdrive channel with gain 1, gain 2 with contour, 3-band
	EQ and level control
● Clean channel with level control and 3-band EQ
●	Master volume and reverb
●	Rugged foot switch for channel select, reverb on/off and
	gain select
● Push switch for channel and gain select
●	Headphones line out
●	Effects send and return with level controls
●	Line out with level control
●	Selectable external speaker jacks
●	Ground lift switch
●	Rectifier select switch for: Tube A, Tube AB1 and
	Solid-State
● 27” x 11” x 11” (W x H x D)
●	Weight: 52 lbs.
	SOVTEK TUBE CHART
	Power Tubes:		4 x 6L6
	Preamp Tubes:		5 x 12AX7
	Reverb Tube:		1 x 12AT7
	Rectifier Tube:		1 x 5AR4
	HEED ALL WARNINGS!
		WARNING: To reduce the risk or fire or
	CAUTION
		electrical	shock do not expose	this
	RISK OF ELECTRIC SHOCK
	DO NOT OPEN	equipment to rain or moisture.

ST-100A 100-WATT ALL-TUBE LEAD GUITAR AMPLIFIER!

Thank you for choosing the B-52 Stealth Series ST-100A amplifier. This guitar amplifier is perfect for
guitarists of every level. Whether you are playing to a stadium crowd of 50,000 or practicing at home in
your garage, the ST-100A will produce awesome crunch, smooth mids and crystal-clean highs. It is also
capable of producing massive amounts of distortion, perfect for any style from Blues to metal.
This instruction manual explains all that the ST-100A has to offer, how to operate and control each feature
so you can achieve the sound you desire. B-52			HIGHLY recommends that you read this detailed
instruction manual carefully and heed all warnings.
		B-52 STEALTH SERIES LOGOS
		B-52’s lead guitar speaker cabinets are fitted with chrome or gold logos. You will notice that the ST-100A tube
		amplifier has a chrome finish. If you have purchased a B-52 LG-412V and/or LG-412S (pictured below) to accom-
pany the ST-100A, as a half-stack or full-stack, simply replace the gold logo on the speaker grill with the chrome logo provided
inside the ST-100A packaging. To remove the gold logo, gently place a flat-head screw driver between the back of the logo and
metal grill and “pop” it off. To attach the chrome logo, B-52 recommends using a multi-purpose silicon, which can be purchased
from most hardware stores. Apply this silicon to the back of the chrome logo and push firmly onto the grill. Allow approximately
1hr to dry. If you already own a LG-412V or LG-412S and need matching B-52 chrome logos, please call 1-800-344-4384 to
request shipment.
B-52 Stealth Series Speaker Cabinets
	(Recommended for use with ST-100A)
LG-412V		–400-Watt RMS speaker cabinet - Slant
LG-412S		–400-Watt RMS speaker cabinet - Straight
The B-52 LG-412V and LG-412S, 4 x 12” slant and
straight cabinets are a perfect complement to the
ST-100A all-tube amplifier. They offer awesome tone and
incredible projection. With four custom-built, 100-watt 12”
speakers, these cabinets provide crystal clear highs and
heavy distortion with classic breakup.
FEATURES:
●	4 x 100-watt, custom built, heavy-duty speakers
●	16-gauge metal grill for ultimate protection
●	Rear porting for extended low-frequency response
						LG-412S
●	Metal handles, rubber feet and metal corners
●	Detachable casters for easy transport
●	Authentic black vinyl finish			LG-412V

HEARING DAMAGE, PROLONGED EXPOSURE TO EXCESSIVE SPL
B-52 Stealth Series amplifiers and speakers, including the ST-100A, are capable of producing sound pressure levels (SPL) sufficient to
cause permanent hearing damage to performers, production crews or people in the audience. Hearing protection devices such ear-plugs
are recommended. Caution should be taken to avoid extended SPL is excess of 90 dBA.
AMPLIFIER MODULE PRECAUTIONS
Do not attempt to service the ST-100A by yourself. Refer all servicing to a B-52 Stealth Series Authorized dealer. Service is required when
the ST-100A has had liquid spilled on or inside the unit, has been damaged in any way, has been exposed to rain or moisture, does not
operate normally or has been dropped.
WARNING – SHOCK HAZARD:
To reduce the risk of fire or electrical shock, do not expose this unit to rain or moisture. Do not operate your ST-100A near a pool or other
standing water. Make sure all blades on the polarized power plug are fully inserted into the power source. Ensure the power cord is not
stretched, pinched or otherwise abused. Ensure the power cord is routed to avoid foot traffic. Your ST-100A amplifier should be cleaned only
with a dry cloth.	3