SuperQ - Premium Magnetic Core

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PURITY GUARANTEERoHS Compliant

“SUPER Q a sonically superior magnetic core coil”

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The Super Q coil is revered by audiophiles and engineers throughout the world as the best performing magnetic core coil. The Super Q takes the performance of the IXQ coils to another level, with reduced THD distortion, FM distortion and D.C resistance. The Super Q core utilizes ERSE’s micro thin grain oriented low loss steel. The low loss steel is then stamped to a unique shape which helps fine tune the flux field for optimal audio performance. After the core is stamped it goes through ERSE’s special annealing process to maintain the crystalline grain structure of the core. The core is then hand stacked to an exact number of sheets to insure that each core is exactly the same. After stacking the core it is then placed into a special built plastic mold which pinches the steel stack tightly under pressure. Then the Super Q core is over molded with high temperature polycarbonate. The core is left in the mold two times the normal time to insure the plastic has fully cured. ERSE’s unique over molding procedure is one hundred times stronger than varnish and virtually eliminates FM distortion. No other magnetic core coil can claim such low FM distortion. After the cores are manufactured and inspected for quality each Super Q is then wound like all of our “Q” series coils. We use high purity OFC copper wire utilizing ERSE’s PURITY GUARANTEE. The wire is then evenly wound with computerized winding equipment and hysteresis tension devices insuring the high crystalline cell structure of the OFC copper is not broken. All of the unique manufacturing processes followed here by ERSE make Super Q one of the best performing sonically excellent magnetic core coils available today.

All Super Q inductors are lead free (RoHS Compliant)

  • Ultra Low D.C.R.
  • Very High Quality
  • High Temperature Over Molded Core
  • Screw Mountable Bobbin
  • Very High Saturation Levels
  • Very Low Stray Magnetic Field
  • RoHS Compliant

  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
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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.