IMPORTANT SAFETY INSTRUCTIONS! 1) 2) 3) 4) 5) 6) 6) 7) 8) 9) Read these instructions. Follow all instructions. Keep these instructions. Heed all warnings. DO NOT turn on the ST-100A without the loudspeaker connected. 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. Clean only with dry cloth. Do not block any ventilation openings and operate in accordance with manufacturer's instructions. Do not install near heat sources such as radiators, stoves or other devices that may produce heat. 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. Protect the power cord from being walked on or pinched, particularly at the plug and the point where it exits the ST-100A amplifier. Only use attachments / accessories specified by B-52 Professional. Unplug the ST-100A during lightning storms and when not in use. 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. To reduce the risk of fire or electric shock, do not expose the ST-100A to rain or moisture. Moisture can damage the ST-100A and can cause corrosion of electrical contacts. 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. Never remove the front or rear panels of the ST-100A while it is connected to an electrical outlet. Important Safety Instructions / Features...............................................................2 Important Information ........................................3 ST-100A Controls................................................4-5 Set-up & Warranty Information .........................5-7 Contact Information ...........................................8 This B-52 Stealth Series ST-100A has a 100% pure, all-tube signal path, incredible tone and a wide array of guitarist friendly 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. q q INSIDE THIS INSTRUCTION MANUAL ST-100A FEATURES q q q 10) 11) 12) 13) q q q q q q q q q 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 4 5 1 1 x x x x 14) 15) 16) Power Tubes: Preamp Tubes: Reverb Tube: Rectifier Tube: 6L6 12AX7 12AT7 5AR4 17) 2 RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION HEED ALL WARNINGS! WARNING: To reduce the risk or fire or electrical shock do not expose this equipment to rain or moisture. 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. ST-100A 100-WATT ALL-TUBE LEAD GUITAR AMPLIFIER! 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 accompany 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 LOGOS B-52 Stealth Series Speaker Cabinets LG-412V ­400-Watt RMS speaker cabinet - Slant LG-412S ­400-Watt RMS speaker cabinet - Straight (Recommended for use with ST-100A) 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: q 4 x 100-watt, custom built, heavy-duty speakers q 16-gauge metal grill for ultimate protection q Rear porting for extended low-frequency response q Metal handles, rubber feet and metal corners q Detachable casters for easy transport q Authentic black vinyl finish LG-412S LG-412V 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. 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. 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. HEARING DAMAGE, PROLONGED EXPOSURE TO EXCESSIVE SPL AMPLIFIER MODULE PRECAUTIONS WARNING ­ SHOCK HAZARD: 3 ST-100A - Front Panel Features & Descriptions ON ON MASTER CLEAN POWER STANDBY ST-100A - Rear Panel Features & Descriptions CC S/No.: EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE the control clockwise. The Master volume control allows you to POWER ON/OFF SWTICH: Turns the ST-100A on and off. preset the output levels of both the Clean and Overdrive STANDBY ON/OFF SWITCH: Allows the ST-100A to remain Channels. turned ON for limited periods of inactivity without the risk of 10 0 10 0 10 10 0 0 10 10 0 0 damaging / over-heating the amplifier tubes. WhenPHONES the Standby 5. REVERB CONTROL: Adjusts the amount of reverb produced by POWER STANDBY MIDDLE TREBLE BASS VOLUME MASTER theREVERB To increase the amount of reverb turn clockwise. amplifier. switch is in the STANDBY position the ST-100A is in a nonoperational setting. All-Tube Professional Amplifier tubes remain 6. CLEAN CHANNEL - TREBLE: Adjusts the amount of high When in Standby the Sovtek frequency boost or cut as desired in the clean channel. Treble hot and ready for use. This bypasses the time required for the adds brightness to your music. Turning the Treble control tubes to warm up before use. When the Standby switch is in the 1 position the ST-100A is operational and should 3 be left 4 clockwise will sharpen your sound, alternatively, turning the 2 6 5 7 8 9 ON not control counterclockwise softens your sound. inactive. DO NOT turn on the ST-100A or have the Standby 7. CLEAN CHANNEL ­ MIDDLE: Adjusts the amount of mid-range switch set to ON without it connected to a loudspeaker. 3. INPUT / PHONE JACK: Connects headphones to the ST-100A. frequencies as desired in the clean channel. Turning the middle 4. MASTER VOLUME: Controls the overall signal level of the control clockwise will increase the amount of depth in your ST-100A. To increase the overall signal and/or volume, rotate music. Setting the control all the way to the left will make your music sound more hollow. 8. CLEAN CHANNEL ­ BASS: Adjusts the amount of low WARNING: SHOCK HAZARD! frequency boost or cut as desired in the clean channel. Adding To reduce the risk of fire or electrical shock, do not expose this unit to rain bass will increase the warmth of your sound. or moisture. Do not operate your ST-100A near a pool or other standing CAUTION ­ VOLUME: EFFECTS9. CLEAN CHANNEL FOOT SW Controls the overall signal level water. Make sure all blades on the polarized power plug are fully inserted LINE OUT RISK OF ELECTRIC SHOCK of the clean channel.Adjusting the volume control enables you to DO NOT OPEN into the power source. Ensure the powercord is not stretched, pinched or produce sparkling clean sounds to crunchy, dirty blues. Turned CAUTION: TO REDUCE THE RISK OF LEVEL LEVEL otherwise abused. Ensure the power cord is routed to avoid foot traffic. LEVEL FIRE, REPLACE ONLY WITH THE SAME all the way to the left you will experience clean sounds. A setting TYPE OF FUSE. Your ST-100A amplifier should be cleaned only with a dry cloth. WARNING: TO REDUCE THE RISK OF all the way to the right will produce moderate levels of distortion. FIRE OR ELECTRICAL SHOCK, DO NOT 1. 2. ON 1 2 ON All-Tube Professional Amplifier ST-100A PHONES MASTER 0 10 REVERB 0 10 TREBLE 0 10 MIDDLE 0 10 0 BASS 10 VOLUME 0 10 3 4 MASTER 5 6 7 CLEAN 8 9 ST-100A SEND RETURN GAIN & CHANNEL REVERB All-Tube Professional Ampl ST-100A RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION CAUTION: TO REDUCE THE RISK OF FIRE, REPLACE ONLY WITH THE SAME TYPE OF FUSE. WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE LINE OUT 21 LEVEL 22 23 LEVEL EFFECTS 24 25 LEVEL 26 FOOT SW 28 27 GAIN & CHANNEL REVERB CC S/No.: SEND RETURN All-Tube Professional Ampli ST-100A 21 4 21. LINE OUT JACK: Connects the ST-100A to an external linelevel device such as a mixing board. 22. LINE OUT LEVEL CONTROL: Controls the output capacity of the Line Out Level. 23. EFFECTS - SEND JACK: Connects to the ST-100A to the input off an effects unit. 24. EFFECTS ­ SEND LEVEL: Controls the sending level output to an effects unit. 25.EFFECTS ­ RETURN LEVEL: Controls the input capacity of 22 23 24 25 26 27 28 the returning signal from an effects unit. 26. EFFECTS ­ RETURN JACK: Connects the ST-100A to the output of an effects unit. 27. FOOTSWITCH ­ GAIN AND CHANNEL SWITCH: Switch between Gain 1 and Gain 2 in the overdrive Channel. Also switches between clean and overdrive channel. 28. FOOTSWITCH ­ REVERB INPUT JACK: Connects footswitch to turn Reverb On/Off. 29. SPEAKER SELECT SWITCH: Allows you to select appropriate CH. SW. OVERDRIVE GAIN SW. INPUTS E CH. SW. VOLUME 0 10 TREBLE 0 10 MIDDLE 0 10 0 BASS 10 CONTOUR 0 10 GAIN2 0 10 GAIN1 0 10 LOW HIGH ifier 10. CHANNEL SWITCH: Push switch selects between the clean between Gain 1 and Gain 2 controls. Activated LED lights and overdrive channels. Activated LED lights indicate which indicate which channel is currently use. 18. OVERDRIVE10 CHANNEL ­ 10 GAIN 1: Adjusts the amount of channel is10 use. 0 in 10 0 0 10 10 0 0 10 0 0 HIGH LOW distortion in Gain 1. (Activated LED indicates in use). 11. OVERDRIVE ­ VOLUME: Controls the overall signal level of the BASS GAIN2 MIDDLE CONTOUR TREBLE GAIN1 VOLUME overdrive channel. 19. INPUT CONNECTOR - LOW: Connects your guitar to the 12. OVERDRIVE CHANNEL ­ TREBLE: Adjusts the amount of high ST-100A. B-52 recommends that you use a cable that is frequency boost or cut as desired in the overdrive channel. screened or shielded. 20. INPUT CONNECTOR - HIGH: Connects your guitar to the Turn ...