Restore your instrument's original tone! Buffers are useful in positions on pedal boards where your tone is getting sucked and becoming dull. This can be caused for example by some wah pedals and long cable runs. The lower impedance output of the buffer will also resist external noise sources such as mains hum.
- Discrete field-effect transistor.
- Full audio band frequency response.
- Fast action 3PDT true bypass foot switch.
- Noiseless biasing.
- Durable powder coated finish.
- Extra thick, Hammond aluminum enclosure.
- Highest quality components and construction.
- Five year warranty + manual.
Where should buffers be positioned in the signal chain? Some pedals such as fuzzes and boosters have simple circuits and will only voice correctly when they are positioned first in the signal chain, before any buffering pedals. This is because they are expecting to see the output impedance of a pickup at their input. Always try using buffers after fuzzes and old style boosters unless you have a tone-suck wah before it and need to re-polish the signal.
It's often important to have buffers at the end of the signal chain as well as the front to minimize treble drop off along the final cable to your amplifier. Modern solid-state amplifiers will often have a buffered input and won't benefit much from this. Similarly, if you have lots of commercial 'Boss' style pedals which have buffered switching then you may not find benefit. Old-style players with valve state amplification and true bypass pedals may expect a pleasant surprise to hear the instrument's original shimmer restored and the signal now fighting external noises. Many volume pedals and distortion pedals are not properly buffered after tone stacks and volume pots which can cause signal dropoff when run in series.
Keeping those notes in mind, try every position to find where you can most benefit from buffering before assuming one final spot is only the best.