All Tube Guitar Amplifier User’s Guide
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.
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.
BV120H All Tube Guitar Amplifier The Front Panel: 1 2 3 4 5 1. POWER: This switch applies AC voltage to the amplifier, and should always be turned on first. The switch illuminates when the AC power is on. 2. STANDBY: This switch activates the amplifier, and should always be turned on last. The switch illuminates when the high voltage power is passing through to the tubes. NOTE: When you first power up this amplifier, leave the Standby switch OFF for at least 20 seconds.
BV120H All Tube Guitar Amplifier The Rear Panel: 19 20 21 22 19. IMPEDANCE SELECTOR: For the best performance and least strain on your amplifier, you MUST properly match the impedance of your amplifier to that of your speaker cabinet(s). Set the selector switch to the 8 or 16 ohm position, depending on the total impedance of your speaker cabinet(s). The chart below can help you determine that impedance based on the following combinations of speakers connected in parallel. CAB. IMP.
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 now open.
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 longevity 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.
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.
BV120H All Tube Guitar Amplifier Some Suggested Settings: CRUNCHY EDGE: SPARKLING CLEAN: (as needed) ROCK RHYTHM: (as needed) (as needed) FAT CLEAN: (as needed) MASSIVE METAL: (as needed) (as needed) 9
BV120H All Tube Guitar Amplifier System Block Diagram: CH.1 TUBE STAGE INPUT CHANNEL SWITCHING BASS MID TREBLE LEVEL TUBE STAGE CH.2 GAIN TUBE STAGE TUBE STAGE TUBE STAGE TUBE STAGE BASS MID TREBLE LEVEL PAD SWITCHING SEND RETURN EFFECTS SWITCHING EFFECTS LOOP REVERB LEVEL 1 REVERB LEVEL 2 MAIN SPKR OUT POWER AMP IMPEDANCE SELECTOR EXT.
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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 Channel 1 Channel 2 Bass 16dB @ 100Hz 15dB @ 100Hz Mid 20dB @ 300Hz 13dB @ 500Hz High 10dB @ 10kHz 10dB @ 10kHz Presence 5dB @ 10kHz 5dB @ 10kHz Tone Control Range Input Impedance 1M ohm Maximum Signal Accepted 2.
