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Project Horizon has several jumpers settings to customize the amp the way you would like it. Below gives you the
details on what these jumper settings do!
THE 6V / 12V JUMPER ALLOWS YOU TO USE BOTH 6 AND 12 VOLT TUBES. BEFORE POWERING ON YOUR
AMPLIFIER, YOU MUST MAKE SURE WHAT VOLTAGE YOUR TUBE RUNS AT AND SET IT ACCORDINGLY VIA
THE JUMPER. ATTACH THE JUMPER TAB TO THE CENTER PIN AND TO THE SIDE PIN CLOSEST TO THE
VOLTAGE YOU DESIRE (6v OR THE 12v SIDE)
(EXAMPLE OF 6V SETTING IN RED)
TO NOTE: IF IN DOUBT, SET THE AMP TO 12V. IF ONLY ONE CHANNEL WORKS, CHANGE IT TO THE 6V
SETTING. YOU CANNOT DAMAGE A TUBE IF SET TO THE WRONG VOLTAGE
INPUT CAPACITORS CAN BE BYPASSED PER YOUR
INPUT GAIN JUMPERS
PREFERENCE. MANY VIEW THIS AS A PURIST
FUNCTION AS IT IS ONE LESS COMPONENT IN THE
SIGNAL PATH. WITH INPUT CAPS BYPASSED, YOU
MAY HEAR A SCRATCHY SOUND WHEN ADJUSTING
VOLUME. THIS WILL NOT DAMAGE YOUR
HEADPHONES OR YOUR AMPLIFIER. TO NOTE: YOU
MUST RE-BIAS THE AMPLIFIER AFTER MAKING A
CHANGE TO THIS SETTING
TC = THROUGH CAP
(EXAMPLE SETTING IN RED)
BPC = BYPASS CAPACITOR
OUTPUT RESISTANCE IS CONFIGURABLE
BETWEEN 1.5, 35 and 120Ω. HIGHER OUTPUT
IMPEDANCE WILL HAVE A SLIGHT EFFECT ON
BASS AND TREBLE FREQUENCIES WHICH IS
ALSO DEPENDANT ON YOUR HEADPHONES
(EXAMPLE OF 120Ω SETTING IN RED)
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