Cool tools for working musicians. We have designed a number of products for the working musician. Tired of your guitar cable killing your tone? Try our ZEROCAPTM ultra low capacitance guitar cable. Do you have a guitar amp? Then take a look at our patent pending PM-150 Audio Power Meter, an audio wattmeter for your guitar, keyboard or bass amplifier. In addition to displaying the amplifier output wattage in real time (up to 300 WATTS), it has a protection feature to guard against blown speakers. Also check out our patented S-TunerTM with Knife Edge TuningTM. This guitar tuner provides convenient, accurate tuning for your Fender® Stratocaster® or compatible. If you have another type of guitar or bass, or you build instruments, the Z-TunerTM is for you! Z-TunerTM Guitar Tuner with Knife Edge TuningTM S-TunerTM with Knife Edge TuningTM The ZEROCAPTM Cable PM-150 Audio Power Meter Check out our articles on gear topics. NEW! The Guitar Pickup Tone Database