AudioChainsDB
Emotiva

BasX A3+

amplifier

$799

Used market: $575*

Manufacturer datasheet

Specifications

3 of 5 values have a recorded source
Amp Type
Power Amp·
Channels
3·
Speaker Outputs
5-Way Binding Posts·
Power Output Per Channel
{"thdPercent":0.1,"continuousWatts":140,"loadImpedance_ohms":8}, {"thdPercent":1,"continuousWatts":200,"loadImpedance_ohms":4}✓
Min Supported Impedance ohms
4✓

Expert Audio Engineering Commentary

Headroom Notes

140 W per channel into 8 ohms with all three channels driven, 20 Hz - 20 kHz, under 0.1 % THD. Emotiva also publishes a two-channels-driven figure of 150 W into 8 ohms and 250 W into 4 ohms without distortion limits, which is why the all-channels rating is the one stored.

Thermal Behavior

Emotiva is one of the few makers that states the load limit in words rather than leaving it to be guessed from a power table: 'Minimum Recommended Load Impedance (per channel): 4 Ohms (equals one 4 Ohm load or two paralleled 8 Ohm loads)'. The parenthesis matters - it is the only place in this batch where a manufacturer spells out what happens when two pairs of speakers share one channel.

* Estimated with the depreciation fallback (~72% retained value). · checked on 8/5/2026