User manual B-52 ST60A

IMPORTANT SAFETY INSTRUCTIONS! 1) 2) 3) 4) 5) Read these instructions. Follow all instructions. Keep these instructions. Heed all warnings. DO NOT turn on the ST-60A without the loudspeaker connected. Do not use the ST-60A near water. Be extra cautious when moving the ST-60A 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-60A amplifier. Only use attachments / accessories specified by B-52 Professional. Unplug the ST-60A during lightning storms and when not in use. Refer all servicing to qualified personnel. Servicing is required when the ST-60A 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-60A to rain or moisture. Moisture can damage the ST-60A 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-60A. Never remove the front or rear panels of the ST-60A while it is connected to an electrical outlet. Important Safety Instructions / Features .........2 Product Information ...........................................3 ST-60A Controls..................................................4-5 Set-up & Warranty Information .........................5-7 Contact Information ...........................................8 INSIDE THIS INSTRUCTION MANUAL 6) 6) 7) 8) 9) This B-52 Stealth Series ST-60A 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 ST-60A FEATURES q q q 10) 11) q q q q q q q 12) 13) q q 14) 15) 16) 17) 1/4" 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 Line level 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 Dimensions: 27" x 11" x 11" (W x H x D) Weight: 51 lbs. Power Tubes: Preamp Tubes: Reverb Tube: Rectifier Tube: SOVTEK TUBE CHART 4 5 1 1 x x x x 6L6 12AX7 12AT7 5AR4 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-60A 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-60A 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-60A 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 manual carefully and, please, heed all warnings. ST-60A 60-WATT ALL-TUBE LEAD GUITAR AMPLIFIER! B-52 Stealth Series Speaker Cabinets ST-412V - 280-Watt RMS Cabinet - Slant ST-412S - 280-Watt RMS Cabinet - Straight ST-212S - 140-Watt RMS Cabinet - Straight The B-52 ST ST-412V and ST-412S are a perfect complement to the ST-60A all-tube amplifier. They offer awesome tone and incredible projection. With four Celestion Vintage 30 speakers, these cabinets provide tight bass, fat mids, and smooth harmonically rich highs. The ST-212S provides similar tonal qualities in a 2x12" cabinet. FEATURES: q 4 x 70 Watt Celestion Vintage 30 speakers q Black Grille Cloth/white piping q Metal handles and rubber feet q Detachable casters q Distinctive black vinyl finish. (Matches ST-series amplifiers) ST-212S (Recommended for use with ST-60A) ST-412V ST-412S HEARING DAMAGE, PROLONGED EXPOSURE TO EXCESSIVE SPL B-52 Stealth Series amplifiers and speakers, including the ST-60A, 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-60A by yourself. Refer all servicing to a B-52 Stealth Series Authorized dealer. Service is required when the ST-60A 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-60A 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-60A amplifier should be cleaned only with a dry cloth. 3 ST-60A - Front Panel Features & Descriptions ON ON MASTER CLEAN POWER STANDBY ST-60A - Rear Panel Features & Descriptions CC S/No.: SEND RETURN EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE RISK OF ELECTRIC SHOCK DO NOT OPEN preset the output levels of both the Clean and Overdrive POWER ON/OFF SWTICH: Turns the ST-60A on and off. Channels. STANDBY ON/OFF SWITCH: Allows the ST-60A to remain 5. REVERB10 turned ON for limited periods of inactivity without the risk of CONTROL: Adjusts the amount of reverb produced0by 10 0 10 0 10 0 10 10 0 0 PHONES the amplifier. To increase the amount of reverb BASS turn clockwise. damaging/over-heating the amplifier tubes. When the Standby POWER STANDBY MIDDLE TREBLE VOLUME REVERB switch is in the STANDBY position the ST-60A is in a non- MASTER CLEAN CHANNEL - TREBLE: Adjusts the amount of high 6. All-Tube Professional Amplifier frequency boost or cut as desired in the clean channel. operational setting. When in Standby the tubes remain hot and ready for use. When the Standby switch is in the Turning the Treble control clockwise will sharpen your sound, alternatively, turning the control counterclockwise softens ON position the ST-60A is operational and should not be left 3 1 2 4 your sound. 6 5 7 8 9 inactive. DO NOT turn on the ST-60A or have the Standby switch set to ON without it connected to a loudspeaker. 7. CLEAN CHANNEL - MIDDLE: Adjusts the amount of mid-range frequencies as desired in the clean channel. Turning the middle 3. INPUT / PHONE JACK: Connects headphones to the ST-60A. 4. MASTER VOLUME: Controls the overall signal level of the control clockwise will increase the amount of punch in your ST-60A. To increase the overall signal and/or volume, rotate sound. Setting the control all the way to the left will make your the control clockwise. The Master volume control allows you to music sound more hollow. 8. CLEAN CHANNEL - BASS: Adjusts the amount of low frequency boost or cut as desired in the clean channel. Adding WARNING: SHOCK HAZARD! bass will increase the warmth of your sound. To reduce the risk of fire or electrical shock, do not expose this unit to rain 9. CLEAN CHANNEL - VOLUME: Controls the overall signal level or moisture. Do not operate your ST-60A near a pool or other standing CAUTION of the clean channel. Adjusting the volume control enables you FOOT SW LINE OUT water. Make sure all blades on the polarized power plug are fully EFFECTS inserted RISK OF ELECTRIC SHOCK to produce sparkling clean sounds to crunchy, dirty blues. Lower DO NOT OPEN into the power source. Ensure the powercord is not stretched, pinched or settings will produce pure clean tones. Turning this control clockCAUTION: 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 wise will gradually produce moderate distortion. TYPE OF FUSE. Your ST-60A amplifier should be cleaned only with a dry cloth. WARNING: TO REDUCE THE RISK OF 10. CHANNEL SWITCH: Push switch selects between the clean FIRE OR ELECTRICAL SHOCK, DO NOT 1. 2. ON 1 ON 2 All-Tube Professional Amplifier ST-60A 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-60A GAIN & CHANNEL REVERB All-Tube Professional Amplif ST-60A 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 Amplif ST-60A 21 22 23 24 25 26 27 28 4 21. LINE OUT JACK: Connects the ST-60A to an external linelevel device such as a mixing board. 22. LINE OUT LEVEL CONTROL: Controls the output level of the Line Out Level. 23. EFFECTS - SEND JACK: Connects to the ST-60A 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 level of the returning signal from an effects unit. 26. EFFECTS - RETURN JACK: Connects the ST-60A 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 VOLUME 0 10 TREBLE 0 10 MIDDLE 0 10 0 BASS 10 CONTOUR 0 10 GAIN2 0 10 GAIN1 0 10 LOW HIGH CH. SW. ier and overdrive channels. Activated LED lights indicate which indicate which channel is currently use. channel is in use. 18. OVERDRIVE CHANNEL - GAIN 1: Adjusts the amount of 11. OVERDRIVE - VOLUME: Controls0the overall signal level of the0 10 0 10 0 10 distortion in Gain 1. (Activated LED indicates in use). 10 10 10 0 0 10 0 HIGH LOW overdrive channel. TREBLE LOW: 19. INPUT CONNECTOR - GAIN1Connects your guitar to the BASS GAIN2 MIDDLE CONTOUR VOLUME 12. OVERDRIVE CHANNEL - TREBLE: Adjusts the amount of high ST-60A. B-52 recommends that you always use a cable that is frequency boost or cut as desired in the overdrive channel. screened or shielded. Turning this control clockwise adds clarity to your sound. 20. INPUT CONNECTOR - HIGH: Connects your guitar to the ST-60A. B-52 recommends that you always use a cable that 13. OVERDRIVE CHANNEL - MIDDLE: Adjusts the amount of 10 mid-range frequencies as desired in13 overdrive 14 11 16 17 12 15 is screened or shielded. 18 19 20 the channel. [Try both inputs and use the one that sounds best to you. The Similar to the Clean Channel function, the O.D. Channel Middle bottom line is trust your ears!] control adds body and punch to your sound. 14. OVERDRIVE CHANNEL - BASS: Adjusts the amount of low frequency boost or cut as desired in the overdrive channel. Bass AMPLIFIER PRECAUTIONS is B-52's signature. Turning this control clockwise increases depth and low-end punch to your music. Do not attempt to service the ST-60A by 15. OVERDRIVE CHANNEL - CONTOUR: Adjusts the overall tone quality of Gain 2 in the overdrive channel. Low contour settings yourself. Refer all servicing to a B-52 emphasize middle frequencies. A higher setting will notch the Authorized dealer. Service is required when mid-range to produce the deep crunch sounds characteristic in LOUDSPEAKER OUTPUTS the ST-60A has had liquid spilled on it or has most heavy metal type music. 100 WATTS RMS 16. OVERDRIVE CHANNEL - GAIN 2: Adjusts the amount of been damaged in any way, the amplifier has distortion in Gain 2. (Activated LED indicates use). been exposed to rain or moisture, does not 17. OVERDRIVE CHANNEL - GAIN SWITCH: Push switch Selects 4 OHM/8 OHM LIFT GND operate normally or has been dropped. between Gain 1 and Gain 2 controls. Activated LED lights (4 & 8 OHMS PARRALLEL JACKS) 16 OHMS 10 11 12 13 OVERDRIVE 14 15 16 GAIN SW. 17 18 19 INPUTS 20 29 4 OHM/8 OHM 30 LOUDSPEAKER OUTPUTS 31 100 WATTS RMS (4 & 8 OHMS PARRALLEL JACKS) 16 OHMS 32 LIFT GND 33 34 ier 4 Ohm or 8 Ohm load loudspeakers. You must ensure that the switch is set to appropriate impedance rating that matches your loudspeaker. Note: Ensure that loudspeaker impedance matches the correct jack connectors. 30. EXTERNAL LOUDSPEAKER JACKS: Connects the ST-60A to external loudspeakers such as the ST-412V or ST-412S with a 4 Ohm or 8 Ohm load. 31. 16 OHM LOUDSPEAKER JACK: Connects loudspeakers(s) that require a 16 Ohm load. 32. GROUND / LIFT SWITCH: Removes ground from the circuit 29 30 31 32 to eliminate 60-cycle hum. 33. 3-SETTING RECTIFIER SWITCH: SOLID-STATE - Gives tighest low-end definition and fastest attack. TUBE AB1 - Punchy, warm and tighter definition than Tube A. TUBE A - "Vintage" attack and feel. Warmest sounding setting. 34. AC INLET & FUSE HOLDER: Connects AC powercord as well as contains primary fuse. 33 34 5 LIMITED WARRANTY Thank you for choosing a B-52 sound product. B-52 manufactures some of the world's best sounding and most reliable professional speaker systems, amplifiers and components. E.T.I. Sound Systems, Inc., makers of B-52, takes great pride in thoroughly testing each B-52 product prior to shipment. ty will automatically terminate 90 Days after the original retail sales date. This 90-Day warranty does not cover service or parts to repair damage caused by accident, disaster, misuse, abuse, over-powering, negligence, inadequate packing or shipping procedures and service, repair or modifications of the amplifier which has not been authorized or approved by E.T.I.. This warranty is in lieu of all other expressed warranties. If this product is defective in materials or workmanship as warranted above, your sole remedy shall be repair or replacement as provided above. B-52 CABINETS: E.T.I. Sound Systems, Inc. offers a LIFETIME warranty (effective January 1, 2002) to the original purchaser that a B-52's cabinet construction will be free from defects in material and workmanship. A dated sales receipt will establish coverage under this warranty. This warranty does not cover service or parts to repair damage caused by neglect, abuse, normal & wear and cosmetic appearance of the cabinetry not directly attributed to defects in material or workmanship, or service, repair, modifications of the cabinet, which has not been authorized or approved by E.T.I. If this product is defective in materials or workmanship as warranted above, your sole remedy shall be repair or replacement as provided above. LOUDSPEAKER AND MID-RANGE COMPONENTS: E.T.I. Sound Systems, Inc. warrants the original purchaser that B-52 loudspeakers and/or midrange components will be free from defects in material and workmanship for a period of (5) FIVE YEARS from the original purchase date (effective January 1, 2002). A dated sales receipt will establish coverage under this warranty. This warranty will automatically terminate (5) years after the original retail sales date. This (5) five-year warranty does not cover service or parts to repair damage caused by accident, disaster, misuse, abuse, burnt voice-coils, over-powering, negligence, inadequate packing or shipping procedures and service, repair or modifications of the component which has not been authorized or approved by E.T.I.. This warranty is in lieu of all other expressed warranties. If this product is defective in materials or workmanship as warranted above, your sole remedy shall be repair or replacement as provided above. HIGH-FREQUENCY DEVICES: E.T.I. Sound Systems, Inc. offers a LIFETIME warranty (effective January 1, 2002) to the original purchaser that B-52 high frequency (tweeters) devices will be free from defects in material and workmanship. A dated sales receipt will establish coverage under this warranty. This warranty does not warranty neglect or abuse. NO WARRANTY IS OFFERED ON HIGH-FREQUENCY DEVICES IN B-52 SYSTEMS WITH A BI-AMP SWITCH OPTION. The lifetime warranty on high-frequency devices does not cover service or parts to repair damage caused by accident, disaster, misuse, abuse, negligence, inadequate packing or shipping procedures or service, repair or modifications of the product which has not been authorized or approved by E.T.I. This warranty is in lieu of all other expressed warranties. If this product is defective in materials or workmanship as warranted above, your sole remedy shall be repair or replacement as provided above. NEVER RETURN THE ENTIRE CABINET__JUST THE DEFECTIVE COMPONENT. Identify and remove the defective component. If you are uncertain which component is defective, or need directions for removing a component, please contact our Customer Service Department for assistance. Components which are a part of an original B-52 speaker box must be sent directly to E.T.I. Products must be shipped in the original packaging or its equivalent; in any case, the risk of loss or damage in transit is to be borne by the purchaser. The Return Authorization Number must appear in large print directly below the shipping address. Always include a brief description of the defect, along with your correct return address and telephone number. When calling to inquire about a returned product, always refer to the Return Authorization Number. If E.T.I. determines that the unit was defective in materials or workmanship at any time during the warranty period, E.T.I. has the option of repairing or replacing the product at no additional charge, except as set forth below. All replaced parts become a property of E.T.I. Products replaced or repaired under this warranty will be returned via ground-shipping-within the United States-freight prepaid. E.T.I. is not responsible for costs associated with expedited shipping, either to E.T.I. or the return of the product to the customer. INCIDENTAL OR CONSEQUENTIAL DAMAGE: In no event will E.T.I. be liable for any incidental or consequential damages arising out of the use or inability to use of any B-52 product, even if E.T.I. or a B-52 dealer has been advised of the possibility of such damages, or any other claim by any other party. Some states do not allow the exclusion or limitation of consequential damages, so the above limitation and exclusion may not apply to you. This warranty gives you specific legal rights and you may also have other rights which may vary from state to state. RETURN PROCEDURES: In the unlikely event that a defect should occur, follow the procedure outlined below. Defective products must be shipped, together with proof of purchase, freight pre-paid and insured to the Authorized B-52 Dealer from whom you purchased the product or directly to E.T.I. Sound Systems. If a product must be returned to E.T.I. Sound Systems for warranty replacement/repair, a Return Authorization Number must be obtained from our Customer Service Department prior to shipping the product. GUITAR AMPLIFIER TUBES: E.T.I. Sound Systems, Inc. warrants the original 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 coverahe under this warranty. This warran- GUITAR AMPLIFIERS: E.T.I. Sound Systems, Inc. warrants the original purchaser that B-52 guitar amplifiers will be free from defects in material and workmanship for a period of (5) FIVE YEARS from the original purchase date (effective January 1, 2002). A dated sales receipt will establish coverage under this warranty. This warranty will automatically terminate (5) years after the original retail sales date. This (5) five-year warranty does not cover service or parts to repair damage caused by accident, disaster, misuse, abuse, over-powering, negligence, inadequate packing or shipping procedures and service, repair or modifications of the amplifier which has not been authorized or approved by E.T.I.. This warranty is in lieu of all other expressed warranties. If this product is defective in materials or workmanship as warranted above, your sole remedy shall be repair or replacement as provided above. CUSTOMER SERVICE: Our dedicated staff is ready to help you with any B-52 warranty or product questions you may have. Please call 323-277-4100 (9:00AM to 4:00PM Pacific Standard Time, United States). FOR YOUR PROTECTION: Please complete and mail the Purchase Information Card within (10) ten days of the date of purchase so that we may contact you directly in the event a safety notification issued in accordance with the 1972 Consumer Product Safety Act. In addition, we ask that you complete the brief questionnaire so me may analyze your answers and in this way, help us evaluate our customer needs. E.T.I. Sound Systems, INC. 3383 Gage Ave., Huntington Park, CA, 90255 6 3383 Gage Avenue, Huntington Park, CA, 90255 Phone: 323-277-4100 Fax: 323-277-4108 National: 1-800-344-4384 Internet: www.B-52PRO.com E-mail: info@B-52PRO.com 8 E.T.I. Sound Systems 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.