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

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	Audio Products
		Capacitors
		Coils
		Resistors
		Crossovers
		SPx Pro Speaker Boxes
		Binding Posts
		Speaker Handles
		Terminal Cups
		Protection Devices
		L-Pads
		PC Boards
		Hookup Wire
		Solder

Crossover Calculators

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.

Featured Items

PSB-15

15" Pro SPx Polypropylene Speaker Box

EAV77-12-2700-NP

2.70mH 12ga XQ - Non-Perfect Lay Air Core Inductor.
.28Ω - 1000w