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Audio Coils
Quality coils begin with quality components. All of our inductors offer our purity guarantee because they’re manufactured with oxygen free 99.99% pure copper wire.
- SuperQ - Premium Magnetic Core
- IQ - Laminated Steel Core
- IXQ - Laminated Steel Core
- ALQ - Air Core Bobbin Coil
- E/XQ - Perfect Lay Air Core
- FoilQ - Copper Foil Coil
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Audio Grade Capacitors
ERSE Capacitors are great for all audio applications. From Non-polar Electrolytic to polypropylene caps, ERSE has what you need to make your design not only work, but work at the level of quality you expect. All caps come with low tolerances, low dissipation factors, and excellent all around electrical characteristics.
- C – Cap – Metallized Polypro
- Pulse X - Metallized Polypro
- PEx - Metallized Polyester
- Non-Polar
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Audio Resistors
ERSE audio grade resistors are packaged in a nonflammable cement casing and with an inorganic potting mix. This combination provides resistance to the elements and high thermal conductivity. With features like High Surge Capabilities and small sizes, our wire wound resistors are perfect for all high power applications.
- 10 Watt
- 15 Watt
- 20 watt
- 25 Watt
Why Choose ERSE?
Assembled Crossovers
ERSE has everything needed to build your customized crossover network.