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All Tube
Guitar Amplifier
User’s Guide
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BV120H All Tube Guitar Amplifier Congratulations! Your love of performing and driving ambition to be the best have brought you to a turning point in your musical career: the incredible BV120H All Tube guitar amplifier. A powerhouse of an amplifier designed to take you to the top and keep you there. We know something about you: we know you were never impressed with those "toys" that some of your friends called amplifiers. We know you were holding out until someone offered you an American-made, af
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BV120H All Tube Guitar Amplifier Introduction: The BV120H is an all-tube, feature-packed professional stage performers' amplifier. Rugged construction, reliable American craftsmanship and two powerful channels of pure tube power are some of the trademarks of this new and impressive piece of musician's equipment. This amplifier features two distinctly different 12AX7 tube-driven channels: one with classic tube rhythm sounds and one offering you some of the finest lead and overdrive sounds of any
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BV120H All Tube Guitar Amplifier The Front Panel: 1 2 3 4 5 6 7 8 9 10 10 11 11 12 12 13 13 14 14 115 5 116 6 117 7 118 8 1. POWER: This switch applies AC volt- Channel 2: Channel 1: age to the amplifier, and should always be 8. LEVEL: Set the output signal level of 14. BASS: Adjust the bottom end re- turned on first. The switch illuminates channel 2 with this control. At the "0" posi- sponse with this control. The low control when the AC power is on. tion (full left) very little or no signal wi
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BV120H All Tube Guitar Amplifier The Rear Panel: 19 19 2 20 0 21 21 22 22 2 23 3 24 24 25 25 26 26 27 27 19. IMPEDANCESELECTOR:For the 22. LINE OUT JACK: This 1/4” jack sup- 25. FOOTSWITCHJACK:Connect a best performance and least strain on plies a line-level output signal from the stereo 1/4” (tip/ring/sleeve) here from a your amplifier, you MUST properly match power amp for patching into a mixing two-button footswitch (such as the Crate the impedance of your amplifier to that of board, recordin
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BV120H All Tube Guitar Amplifier Important Information About Tubes And Tube Products: A Brief History Of The Tube: In 1883, Edison discovered that electrons would flow from a suspended filament when enclosed in an evacuated lamp. Years later, in 1905, Fleming expanded on Edison's discovery and created the "Fleming Valve". Then, in 1907, Dr. Lee de Forest added a third component – the grid – to the "Fleming's Valve" and the vacuum tube was a fact of life. The door to electronic amplification was
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BV120H All Tube Guitar Amplifier Important Information About Tubes And Tube Products (Continued): The Nature Of Tubes: Why (And When) To Replace Them: Tubes are made up of a number of fragile mechanical components that are vacuum-sealed in a glass envelope or bubble. The tube's longevi- ty is based on a number of factors which include how hard and often the amplifier is played, vibration from the speakers, road travel, repeated set up and tear down, etc. Any time you notice a change in your ampl
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BV120H All Tube Guitar Amplifier Important Information About Tubes And Tube Products (Continued): Survival Tips For Tube Amplifiers: To prolong tube life, observe these tips and recommendations: • Match the impedance of your speaker cabinet(s) to your amplifier. Improper impedance matching will contribute to early tube degradation and may cause premature tube failure. • Make sure the speaker(s) are properly connected prior to turning on the amplifier. • After playing the amplifier, allow suffici
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BV120H All Tube Guitar Amplifier Some Suggested Settings: CRUNCHY EDGE: SPARKLING CLEAN: (as needed) (as needed) (as needed) (as needed) ROCK RHYTHM: FAT CLEAN: (as needed) (as needed) (as needed) (as needed) MASSIVE METAL: (as needed) (as needed) (as needed) (as needed) 9
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BV120H All Tube Guitar Amplifier System Block Diagram: CH.1 TUBE STAGE INPUT CHANNEL BASS MID TREBLE LEVEL SWITCHING TUBE STAGE CH.2 TUBE TUBE TUBE TUBE GAIN STAGE STAGE STAGE STAGE BASS MID TREBLE LEVEL PAD SWITCHING SEND RETURN EFFECTS EFFECTS SWITCHING REVERB LOOP LEVEL 1 REVERB LEVEL 2 MAIN SPKR OUT POWER IMPEDANCE AMP SELECTOR EXT. SPKR OUT PRESENCE LINE FREQUENCY OUT COMPENSATOR 10
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BV120H All Tube Guitar Amplifier 11
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BV120H All Tube Guitar Amplifier BV120H TECHNICAL SPECIFICATIONS: Output Power Rating 100W RMS @ 5% THD, 8 or 16 ohm load, 120 VAC Gain Channel 1 Channel 2 66dB, tones at “10” @ 1kHz 101dB, tones at “10” @ 1kHz Tone Control Range Channel 1 Channel 2 Bass 16dB @ 100Hz 15dB @ 100Hz Mid 20dB @ 300Hz 13dB @ 500Hz High 10dB @ 10kHz 10dB @ 10kHz Presence 5dB @ 10kHz 5dB @ 10kHz Input Impedance 1M ohm Maximum Signal Accepted 2.8V peak to peak Power Requirements 120VAC, 60Hz, 180VA 100/115VAC, 50/60Hz,
