Emotiva A11


Eleven-Channel Power Amplifier

The BasX A11 is an eleven-channel power amplifier that delivers 105 watts / channel into 8 Ohms and 140 watts / channel into 4 Ohms, all channels driven, with a rated THD+N of < 0.1%, and an A-weighted S/N ratio of <115 dB. The BasX A11 features a heavy-duty linear power supply, high-quality Class A/B amplification, transparent fault protection, and a trigger input and output. High quality industry standard unbalanced RCA inputs enable the BasX A11 to be used with almost any preamp or processor. Audiophile grade five-way speaker terminals accept banana plugs, spade lugs, or bare wires. These features combined allow the BasX A11 to deliver true audiophile performance and sound-quality at an amazingly affordable price.

The BasX A11 is a great choice if you’re looking for a high-quality power amp to pair with a pre/pro, like our MC1 to power all the speakers in a 7.1.4 channel system. Because the A11 provides so many channels of amplification in a single chassis, it also allows some other interesting connectivity options, such as powering the channels in a formidable 7.1 system with bi-amped main LCR speakers!

Circuit Topology

  • The BasX A11 is an eleven-channel power amplifier. The BasX A11 combines classical audiophile amplifier architecture, based on a heavy-duty Class H power supply, and a carefully designed high current short signal path Class A/B output stage, with advanced microprocessor-controlled monitoring and protection circuitry, to deliver superb sound quality and high efficiency at a truly reasonable price


Audio Specifications

  • Power Output(ALL channels driven): 105 watts RMS per channel; 20 Hz 20 kHz; THD < 0.1%; into 8 Ohms. 140 watts RMS per channel; 1 kHz; THD < 1%; into 4 Ohms.
  • Power Output (two channels driven): 160 watts RMS per channel; into 8 Ohms. 260 watts RMS per channel; into 4 Ohms.
  • Power Output (5 channels driven): 145 watts RMS per channel; into 8 Ohms. 200 watts RMS per channel; into 4 Ohms.
  • Power Output (7 channels driven): 125 watts RMS per channel; into 8 Ohms. 180 watts RMS per channel; into 4 Ohms.
  • Power Bandwidth (at rated power; 4 Ohm – 8 Ohm load): 20 Hz to 20 kHz (+ / 0.07 dB)
  • Broad Band Frequency Response: 10 Hz to 80 kHz +0/-1.8 dB
  • THD + noise: < 0.02% (A-weighted); ref rated power
  • Signal to Noise Ratio (8 Ohm load): > 115 dB; ref rated power; (A-weighted).
  • Minimum Recommended Load Impedance (per channel): 4 Ohms (which equals one 4 Ohm load or two paralleled 8 Ohm loads).
  • Damping Factor (8 Ohm load): > 500.
  • Input Sensitivity (for rated power; 8 Ohm load): 1.2 V.
  • Gain: 29 dB.
  • Input Impedance: 27 kOhms.


Input And Output Connections

  • Input Connections: Unbalanced (RCA); one each per channel.
  • Speaker Output Connections: Audiophile grade 5-way binding posts.
  • Trigger: Trigger Input: 5 12 V (AC or DC); <10 mA input current required. Trigger Output: 12 VDC; can drive any load up to 120 mA.


Power Requirements

  • 115 VAC or 230 VAC @ 50 / 60 Hz (automatically detected).


Front Panel Controls and Indicators

  • Standby: push button.
  • Status LEDs: one per channel; blue.
  • Status LEDs change to red to indicate a fault condition.
  • Standby LED: amber.


Rear Panel Controls

  • AC Power switch: rocker switch (switches AC main power).
  • Status LEDs switch: disables front panel Status LEDs.



  • The BasX A11 is protected against excessive operating temperature, shorted speaker connections, ground faults, and other common fault conditions.



  • Dimensions: 17 wide x 7 3/4 high x 15-1/2 deep (not including connectors). 23 wide x 13 high x 21 1/2 deep (boxed).
  • Weight: 51 lbs (unboxed) 57 lbs (boxed)



Download Product Manual





Product Type

Power Amplifier

“Why can’t we have amazing audio and video sound at prices that don’t threaten our mortgage?”As high-end audio chased an ever-shrinking market with ever-more-costly gear, the price of sonic nirvana shot out of reach. New enthusiasts shook their heads and thought, “You know, a soundbar and a receiver may not be that bad.”At the same time high-end audio prices were climbing, Dan Laufman and his team were helping some of the best names in audio manufacture their gear. Dan saw the inefficiencies in the system and the ever-climbing prices, and decided to do something about it.The result is Emotiva.
SKU: A11 Category: