Browse the multiple links to the right to find the system that best fits your needs. Simply enter the impedance and frequency you desire, and the calculator will display the components you need and where to place them in your circuit.
Use these values to easily purchase ERSE Premium Capacitors and Superior Q Series Coils.
 |
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. |
|
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. |