Premium grade audio components including crossover inductors, audio capacitors, electronic assemblies

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Crossover Calculators

Premium SoldereX brand Solder by ERSE

ERSE offers the lowest prices on premium quality Solder. Click HERE to see our complete line of no clean, lead free, and audio grade silver solder.

Foil Q - Copper Foil Coils

ERSE introduces the new FoilQ Copper Foil Coils. Purchase from our stocked 16, 14, and 12 AWG coils in many values. Click HERE to see our new FoilQ Inductors

Special Sale

Click HERE to see our special offeres of the day! We offer close outs and other special pricing for our customers.

Audio Tips

COMPARISON CHARTS
We know that our products are the best! Compare our products with the competitors using our comparison charts. Charts are available for our EQ Air Core Coils and our premium XQ Perfect Lay Coils

CROSSOVER CALCULATOR
Having a difficult time deciding what components to use to build the ultimate speaker crossover? Use our ERSE exclusive Crossover Calculator. Our calculator will show you what components will work best for your application.

HIGH QUALITY UPGRADES
While you shop look for the ERSE exclusive upgrade feature. We at ERSE strive to provide you the absolute best audio experience. This feature will help you find the highest quality products for your audio needs.

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