ELAC A4.2 vs Klipsch R-40SA
The ELAC A4.2 costs less ($399 vs $675). The Klipsch R-40SA is an easier load for a receiver (8 Ω vs 6 Ω).
What each one works with
Checked against every product in our catalogue by the same engine as the compatibility checker.
| A4.2 | R-40SA | |
|---|---|---|
| Receivers and amps that drive it | 27 of 29 | 27 of 29 |
Specs side by side
Values that differ are bold. A dash means that model doesn't publish the spec.
| A4.2 | R-40SA | |
|---|---|---|
| Impedance | 6 Ω | 8 Ω |
| Sensitivity | 85 dB (2.83 V, 1 m) | — |
| Low end | 180 Hz | — |
| Drivers | 1 × 13 mm, 1 × 102 mm | 1 × 25 mm, 1 × 102 mm |
| Size | 7×5×9 in | 6×7×12 in |
| Recommended amplifier power | 20–80 W | — |
| Weight | 2.5 kg (5.5 lb) | 2.8 kg (6.2 lb) |
| MSRP | $399 a pair (MSRP, September 2026) | $675 a pair (MSRP, September 2026) |
Every spec and pairing: ELAC A4.2, Klipsch R-40SA.
Try either one in your own room.
Draw your room in 3D, place it with the rest of your system, and see every connection checked. Designing is free.
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
- Klipsch R-40SA: Spec sheet, assets.klipsch.com, retrieved September 15, 2026
- Klipsch R-40SA: Retailer listing, bhphotovideo.com, retrieved September 15, 2026
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