That is the question. Guys that have long signal chains are starting to ask themselves this a lot more now. I used to have a Catalinbread Serrano Picoso to do the trick on my board for a while. I think it was something I just got without looking into the idea of a buffer too much. It was a great pedal for clean boost and helped with my tone, but I got rid of it when shrinking my board down and never got another buffer. What is the big idea of a buffer?
The question that all guitar players ask is does my tone sound as good running through my pedals as it would if I plugged straight in? Almost always, the answer is no. The more cable (length or amount) you add to a signal, the worse the signal strength gets. Then you add in the stompboxes and pedals and the signal just gets worse. Even high quality and “true bypass” pedals can cut signal strength, thus sucking tone, even if it’s the smallest amount.
A solution to this issue? Enter a high impedance buffer. Some pedals already have buffers in them, and buffers aren’t always a bad thing for a pedal to have in it. It’s when you get some cheaper, less quality brands that a buffer is a bad buffer, therefore it becomes a problem. JHS Pedals uses this example:
“Remember the last time you used a water hose out in the yard? Maybe the end of it didn’t have a nozzle on it, so you had to use your thumb on the end to get enough pressure to spray whatever you needed to spray. That’s what a buffer does. Without it your signal (the water) doesn’t have the pressure to make it to the amp. A good buffer will make your board come back to life and give the exact tone of your prized guitar to your amp!”
All in all, if you’re using a lot of pedals or cable from guitar to pedalboard or from pedalboard to amp, I’d suggest a buffer.
Here are a few options for purchasing a buffer:



