Coils
EQ / XQ Air Core
Perfect Lay air-core inductors
ERSE's EQ and XQ air-core coils use the Perfect Lay winding technique, each turn precisely placed side-by-side layer after layer, for the lowest possible DCR at a given inductance and gauge. Zero core saturation, zero core distortion; ideal for the high-pass side of premium crossover networks.
Highlights
- Perfect Lay precision winding
- Air core, zero saturation, zero core distortion
- Lowest DCR for gauge/inductance
- High-purity OFC copper
Values and sizes
Every available part number, value, and dimension for the EQ / XQ line. Click any chart to enlarge.
Full spec sheet
Bobbin sizes
| Bobbin | ID | OD | Height |
|---|---|---|---|
| EAC31 | 19 mm | 40 mm | 9 mm |
| EAC32 | 21 mm | 45 mm | 11.5 mm |
| EAC33 | 28 mm | 57 mm | 14 mm |
| EAC34 | 31 mm | 70 mm | 16 mm |
| EAC35 | 38.5 mm | 80 mm | 20 mm |
| EAC36 | 45 mm | 93 mm | 23 mm |
Max inductance (mH) by bobbin and wire gauge
Blank cells = combination not offered.| AWG (Power) | EAC31 | EAC32 | EAC33 | EAC34 | EAC35 | EAC36 |
|---|---|---|---|---|---|---|
| 14 AWG (750 W) | — | — | 0.30 | 0.65 | 1.5 | 3.0 |
| 16 AWG (500 W) | — | 0.27 | 0.56 | 1.5 | 3.0 | 6.2 |
| 17 AWG (400 W) | — | 0.30 | 0.56 | 1.5 | 3.0 | 6.2 |
| 18 AWG (300 W) | 0.22 | 0.56 | 1.3 | 3.3 | 6.2 | 15 |
| 20 AWG (200 W) | 0.55 | 1.3 | 3.0 | 6.2 | — | — |
| 22 AWG (200 W) | 1.0 | 3.0 | 6.0 | — | — | — |