Blackheart BH15H Handsome Devil User Manual Download Page 1 | Manualshive

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BH15H Handsome Devil

Guitar Amplifier Head

User’s Guide

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Summary of Contents for BH15H Handsome Devil

Page 1: ...BH15H Handsome Devil Guitar Amplifier Head User s Guide ...

Page 2: ...d 15 Do not overload wall outlets and extension cords as this can result in a risk of fire or electric shock 16 This apparatus shall not be exposed to drip ping or splashing and no object filled with liquids such as vases or beer glasses shall be placed on the apparatus 17 This apparatus has been designed with Class I construction and must be connected to a mains socket outlet with a protective ea...

Page 3: ...ou You ve got in your hands one of the best sounding best quality old school inspired amps that s ever been made Vous avez notre coeur Blackheart Engineering We don t test on little furry helpless animals of course We call our artists animals because well we ve eaten with them They give their time and opinions to us on a regular basis and have a lot to do with how good your Blackheart is CONSIGNES...

Page 4: ...RMS switch DC filament power supply for preamp tubes 3 band EQ Level Master Volume Control and Presence Control 16 gauge 1 5 mm thick folded and spot welded steel chassis Double sided custom color PCB with 2 oz copper 15 ply 18 mm thick void free birch plywood construction 16 ohm two 8 ohm and two 4 ohm speaker outputs Kicks sound in the faces of all those who have wronged you ...

Page 5: ...punch of the output section The adjustment range is 28dB at 20 kHz 5 BASS Use this to adjust the output level of the low frequencies The adjust ment range is 10 dB at 100 Hz 6 MIDDLE Use this to adjust the output level of the mid frequencies The adjust ment range is 6 dB at 1 kHz 7 TREBLE Use this to adjust the output level of the high frequencies The adjust ment range is 14 dB at 10 kHz 8 LEVEL U...

Page 6: ... or value 10 16 OHMS This output can power an external speaker cabinet rated at 16 ohms see top left figure on next page 11 8 OHMS The two 8 ohms speaker out put jacks are wired in parallel See the connection examples on the next page 12 4 OHMS The two 4 ohms speaker out put jacks are wired in parallel See the connection examples on the next page Connecting speaker cabinets The hookup diagrams on ...

Page 7: ...an 8 ohm output jack Four 16 ohm cabinets in parallel Total Load 4 ohm Use a 4 ohm output jack This is a possible system but unlikely It was thrown in while we were on a theoretical roll Two 16 ohm cabinets Total Load 8 ohm Use both 8 ohm output jacks Two 8 ohm cabinets Total Load 4 ohm Use one 4 ohm output jack Two 8 ohm cabinets Total Load 4 ohm Use both 4 ohm output jacks Speaker Cabinets in pa...

Page 8: ...ubes and their associated driver tubes After turning off the power and disconnecting the amplifier from the power source carefully check the tubes in bright light for cracks or white spots inside the glass or any other appar ent damage Then with the power on view the tubes in a dark room Look for preamplifier tubes that do not glow at all or power tubes that glow excessively red Whenever you repla...

Page 9: ...on your amp is like setting the idle on your car If it s too high or hot it s running away with you and if it s too low or cold it will choke when you step on it The bias is adjusted at the factory in accordance with the type of power tube s installed in your amplifier It is important to point out that tubes of the same type and specification typi cally exhibit different performance characteristic...

Page 10: ...er 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 distorted sound regardless of level settings Do not play the amplifier if it exhibits these symptoms get the bias checked adjusted immediately to prevent tube failure and...

Page 11: ...ts for radio noise emissions from digital appara tus as set out in the radio interference regulations of the Canadian Department of Communications Duration per day in hours Sound Level dBA Slow Response Typical Example 8 90 Duo in small club 6 92 4 95 Subway Train 3 97 2 100 Very loud classical music 1 5 102 1 105 Pyotr screaming at Zane and Troy about deadlines 0 5 110 0 25 or less 115 Loudest pa...

Page 12: ...s or registered trademarks of their respective holders and are hereby acknowledged Service Information If you are having a problem with your Blackheart BH15H Handsome Devil you can go to our website www blackhearteng com and click on Heart Surgery for service information or call 1 800 898 3211 Monday Friday during normal business hours Pacific Time to explain the prob lem If you are outside of the...

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