Cement Wire Wound Resistors

With features like High Surge Capabilities and small sizes, the ERSE cements wire wound resistor is perfect for all high power applications.

Learn More
cement-wire-wound-resistors-

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.

Learn More
foil-q-copper-foil-coil

Audio Tips

line-img01

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.

line-img02

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.

 

home-icon-cn

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.

 

  erseaudio logo Mundorf Jantzen Solen Intertechnik Result
Trade name XQ coils BL140 Perfect Lay Air Coils CU 1.4mm  
Wheeler formula Yes No Yes No No Higher DCR and lower Q factor
Varnish Impregnated Yes Yes Yes No No Varnish impregnated coils offer the lowest possible microfonic distortion
Hysteresis tension devices Yes No No No No Inconsistent winding factor and DCR’s
Precision Orthocyclic tooling matched to .001” Yes No No No No Improved matching of coils. Lower inductive tolerance.
Computerized layer winding Yes No No No No Improved layering and lower DCR.
Purity Guarantee
Click here for details		 Yes No No No No Unknown purity and conductivity can result in smeared sound

Tolerance

 1% 3% 1% 3% 3% Lower tolerances can assure your coil is closer to the advertised value
1.0mh #14AWG coil DCR CLAIMED 0.208 Ω 0.30 Ω 0.21 Ω NA 0.28 Ω Higher DCRs result in increased power loss and reduced performance.
1.0mh #14AWG coil DCR MEASURED 0.211 Ω 0.306 Ω 0.215 Ω NA 0.293 Ω Higher DCRs result in increased power loss and reduced performance.
  erseaudio logo Mundorf Jantzen Solen Intertechnik Result
Trade name EQ coils L100 Air coils NA CU 1.0mm  
Wheeler formula Yes No No NA No Higher DCR and lower Q factor
Bonded coil Yes Yes
optional		 Yes NA No Bonded coils offer lower microphonic distortion
Hysteresis tension devices Yes No No NA No Inconsistent winding factor and DCR’s
Precision Orthocyclic tooling matched to .001” Yes No No NA No Improved matching of coils. Lower inductive tolerance.
Computerized Orthocyclic layer winding Yes No No NA No Improved layering and lower DCR.
Purity Guarantee
Click here for details		 Yes No No NA No Unknown purity and conductivity can result in smeared sound

Tolerance

 2% 3% 3% NA 3% Lower tolerances can assure your coil is closer to the advertised value
1.0mh #18AWG coil DCR CLAIMED 0.471 Ω 0.49 Ω 0.55 Ω NA 0.60 Ω Higher DCRs result in increased power loss and reduced performance.
1.0mh #18AWG coil DCR MEASURED 0.482 Ω 0.531 Ω 0.572 Ω NA 0.581 Ω Higher DCRs result in increased power loss and reduced performance.