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INSIDE THIS INSTRUCTION MANUAL

Important Safety Instructions / Features .........2

Product Information ...........................................3

ST-6012 Controls ................................................4-5

Set-up & Warranty Information .........................5-7

Contact Information ...........................................8

CAUTION

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

HEED ALL WARNINGS!

WARNING:

To reduce the risk or fire or

electrical shock do not expose this

equipment to rain or moisture. 

1) Read these instructions.

2) Follow all instructions.

3) Keep these instructions.

4) Heed all warnings.

5)

DO NOT

turn on the ST-6012 without the

loudspeaker connected.

6) Do not use the ST-6012 near water. Be extra 

cautious when moving the ST-6012 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-6012 amplifier.

11)  Only use attachments / accessories specified

by B-52 Professional.

12) Unplug the ST-6012 during lightning storms

and when not in use.

13) Refer all servicing to qualified personnel.

Servicing is required when the ST-6012 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-6012 to rain or moisture.

15)  Moisture can damage the ST-6012 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-6012.

17)

Never remove the front or rear panels of

the ST-6012 while it is connected to an

electrical outlet.

IMPORTANT SAFETY

INSTRUCTIONS!

This B-52 Stealth Series ST-6012 has a 100% pure, 

all-tube signal path, incredible tone and a wide array of 

guitarist-friendly controls and features the legendary

Celestion Vintage 30 loudspeakers.  It combines Russian

Sovtek 6L6 power tubes with 12AX7 preamp tubes for solid

tube tone and classic breakup. This roadworthy combo

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.

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All-Tube signal path

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2 x 12" Celestion Vintage 30s

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Overdrive Channel: Gain 1, Gain 2 with contour, 

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3-band EQ and level control

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Clean Channel: Level control and 3-band EQ

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Rectifier Select: Tube AB1, Tube A and Solid-State

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Line level send and return with level controls

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Pushswitch for channel and gain select

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Porcelain tube sockets for increased reliability

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Master volume 

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Spring reverb

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Headphones line out

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Line out with level control

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Selectable 4/8/16 ohms external speaker jacks

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Ground lift switch

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Rugged footswitch for channel select, 

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Reverb on/off and gain select

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Rugged 18mm Baltic birch construction

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Detachable casters for easy transport

27” x 21” x 11” (W x H x D)

Weight: 73 lbs.

ST-6012 FEATURES

Summary of Contents for ST-6012

Page 1: ......

Page 2: ...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 6012 to rain or moisture 15 Moisture can damage the ST 6012 and can cause corrosion of electrical contacts 16 Keep the unit out of extended or intense direct sun ligh...

Page 3: ...erwise abused Ensure the power cord is routed to avoid foot traffic Your ST 6012 amplifier should be cleaned only with a dry cloth ST 6012 60 WATT ALL TUBE LEAD GUITAR COMBO Thank you for choosing the B 52 Stealth Series ST 6012 combo The B 52 ST 6012 is a feature laden all tube 2 x 12 open backed combo with 60 relentless watts ripping through two Celestion Vintage 30s The ST 6012 s foundation is ...

Page 4: ...DDLE Adjusts the amount of mid range frequencies as desired in the overdrive channel Similar to the Clean Channel function the O D Channel Middle control adds body and punch to your sound 9 OVERDRIVE CHANNEL TREBLE Adjusts the amount of high frequency boost or cut as desired in the overdrive channel Turning this control clockwise adds clarity to your sound 10 OVERDRIVE VOLUME Controls the overall ...

Page 5: ... to crunchy dirty blues Lower settings will produce pure clean tones Turning this control clock wise will gradually produce moderate distortion 13 CLEAN CHANNEL BASS Adjusts the amount of low frequency boost or cut as desired in the clean channel Adding bass will increase the warmth of your sound 14 CLEAN CHANNEL MIDDLE Adjusts the amount of mid range frequencies as desired in the clean channel Tu...

Page 6: ...above GUITAR AMPLIFIER TUBES E T I Sound Systems Inc warrants the orig inal purchaser that amplifier tubes used in B 52 Stealth Series All Tube Amplifiers will be free from defects in material and workmanship for a period of 90 DAYS from the original date of purchase effective January 1 2002 A dated sales receipt will establish coverage under this warranty This warran ty will automatically termina...

Page 7: ......

Page 8: ...tems is dedicated to product excellence and therefore continuously attempts to improve each and every model we manufacture This ongoing process includes refinements in design materials and workmanship which may result in products that differ than those described in our literature All features specifications and prices are therefore subject to change without notice 8 ...

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