ELAC A4.2 vs Polk Signature Elite ES90
The ELAC A4.2 is an easier load for a receiver (6 Ω vs 4 Ω) and costs less ($399 vs $449). The Polk Signature Elite ES90 plays lower (142 Hz vs 180 Hz).
What each one works with
Checked against every product in our catalogue by the same engine as the compatibility checker.
| A4.2 | Signature Elite ES90 | |
|---|---|---|
| Receivers and amps that drive it | 27 of 29 | 27 of 29, 13 after a setting change |
Specs side by side
Values that differ are bold. A dash means that model doesn't publish the spec.
| A4.2 | Signature Elite ES90 | |
|---|---|---|
| Impedance | 6 Ω | 4 Ω |
| Sensitivity | 85 dB (2.83 V, 1 m) | 85 dB |
| Low end | 180 Hz | 142 Hz |
| Drivers | 1 × 13 mm, 1 × 102 mm | 1 × 25 mm, 1 × 133 mm |
| Size | 7×5×9 in | 7×7×12 in |
| Recommended amplifier power | 20–80 W | 20–150 W |
| Weight | 2.5 kg (5.5 lb) | 3.76 kg (8.3 lb) |
| MSRP | $399 a pair (MSRP, September 2026) | $449 a pair (MSRP, September 2026) |
Every spec and pairing: ELAC A4.2, Polk Signature Elite ES90.
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References
- ELAC A4.2: Manufacturer product page, elac-america.myshopify.com, retrieved September 15, 2026
- ELAC A4.2: Retailer listing, amazon.com, retrieved September 15, 2026
- Polk Signature Elite ES90: Spec sheet, polkaudio.com, retrieved September 15, 2026
- Polk Signature Elite ES90: Manufacturer product page, polkaudio.com, retrieved September 15, 2026
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