NUX NTU-2 HD Pitch TunerHD PITCH Mini Pedal TunerFast-Read Tuning Screen w/ different tuning visualsTrue Bypass / Buffered Bypass modesUltra-fast response, precise tuningA4 Calibration (436HZ - 445HZ)Precise Tuning / Signal CorrectionNUX HD PITCH Mini Pedal Tuner is a precise tuner with full colored LED screen and HD visuals. And it is perfect to be "first" in a signal chain. When you engage the pedal, it\'s an accurate tuner. When you disengage the pedal, it\'s a signal buffer (in Buffer Bypass mode).Tuner OverviewThis Mini-Pedal Tuner is a whole new breed, created and developed with our latest technology yielding an ultra-fast response time, and unmatched precision tuning. It has 2 bright LED screens that display: notes, tuning, calibration, and bypass mode.Tuning Visual 1 Arrow ModeTune your instrument until the LED indicator at the center is lit. If the LED is on ?left? the pitch is flat, LED is on ??right? the pitch is sharp.Tuning Visual 2 Strobe ModeTune your instrument until the LED indicator stops running. The LED indicators will be running from ?right to left? if the pitch is SHARP, and ?left to right? if the pitch is FLAT.Bypass ModeHD pitch mini pedal tuner offers selectable True Bypass and Buffer Bypass modes to deliver your signals according to your needs in the effect pedal chain. Switching the Bypass Mode: Before you plug the power cable, hold the foot-switch then connect the power. Note display screen will show the selected mode. True Bypass mode: Pedal will MUTE the sound during the tuning.Buffer Bypass mode: When tuning, you can switch between SILENT and AUDIO-ASSIST modes. And when you switch between Silent Mode and Audio-Assist, tuning screen displays the mode as shown below.Besides audio-assist or silent tuning, HD PITCH Tuner?s Bypass mode selection is designed to be more efficient in any case of signal chain needs. True Bypass, which is preferred the most, you can think of HD PITCH Tuner\'s Input directly wired to the Output. When the pedal is in bypass mode, the guitar signal is routed to the next pedal without any interference. But HD PITCH Tuner\'s Buffer Bypass mode allows you to avoid some true bypass circumstances and your guitar signal will reach the end of your chain without any tone loss.Altered Signal HD PITCH Tuner is perfect to be the first pedal in the chain.Optional Buffer BypassModern musicians are usually connecting more than 5 pedals on the pedalboard. According to the guitar, the pickup is high impedance, while you connected with many pedals OR with long cables, and with tone sucking pedals, you need to change the guitar signal from High Z (high impedance) to Low Z (low impedance) to solve Tone Loss situation (capacitance inductance effect). And each pedal will carry the buffered signal which is very convenient if you already added some modulation effects into the signal path. And the best position for the buffer is the first place. That\'s also where the tuner placed, and we combine the tuner and the buffer into a mini size to save your pedalboard space.Why Relay Buffer?There are 3 typical buffer circuit designs: OP-AMP, BJT, and FET. The FET buffer circuit could generateEven Harmonics. This is quite similar to tube amplifiers, which almost every musician loves.And Relay Buffer has the same performance as FET buffer, we add the optional buffer bypass function as FET buffer works for your guitar signal.