Emerson Custom Paper-in-Oil Capacitors and Treble Bleed Circuits are crafted from high-quality materials and proudly made in the USA. The Paper-in-Oil Capacitors, comparable to the renowned (and now discontinued) Sprague Vitamin Q capacitors, offer superior performance. The Treble Bleed Circuit ensures a smoother and more natural taper when adjusting your volume control. Emerson Custom components provide an excellent upgrade for your guitar or bass, enhancing both tone and playability.