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Category: Stereo Amplifiers

Emotiva BasX A5 - 5 Channel Stereo Power Amplifier

Key Features

  • 5-Channel Power Amplifier
    Designed to power multi-channel home theatre systems with clean, dynamic, and reliable performance.

  • Class AB Amplification Topology
    High-current Class AB design delivers a smooth, natural sound with low distortion and strong control.

  • Shared High-Capacity Power Supply
    Robust power supply provides stable output and consistent performance across all five channels.

  • Independent Channel Design
    Each channel is engineered to operate with minimal crosstalk for improved channel separation and clarity.

  • Unbalanced RCA Inputs
    Standard RCA inputs allow easy integration with AV receivers, processors, and preamplifiers.

  • Stable with Low-Impedance Speakers
    Capable of driving a wide range of speaker loads while maintaining control and musical accuracy.

  • Soft-Start and Protection Circuits
    Built-in protection against overheating, short circuits, and overload ensures long-term reliability.

  • Efficient Thermal Management
    Large internal heatsinks support cool and stable operation during extended listening sessions.

  • Trigger Input Support
    12V trigger input enables automatic power on and off when used with compatible AV processors.

  • Solid Metal Chassis Construction
    Rigid steel enclosure reduces vibration and electrical interference for improved sonic performance.

  • Ideal for Home Theatre Systems
    Well-suited for powering front, centre, and surround channels in compact and mid-sized home theatre setups.

Description

Emotiva BasX A5 – 5 Channel Stereo Power Amplifier

  • Audiophile quality Class A/B output stage.
  • Linear power supply with a hefty toroidal transformer and plenty of filtering.
  • Designed to sound great with every speaker and all types of music.
  • Perfect amp to power or upgrade a small 5.1 surround sound system.

Sound Quality First

Designed first and foremost to sound great in all types of audio systems with all types of music.

Great sounding Class A/B output stage ensures smooth, detailed sound and incredibly natural imaging, without a trace of harshness or strain.

Low noise, wide bandwidth design, and a highly optimized input stage let you hear everything your high definition sources have to offer.

Totally stable with real-world speakers in real systems, not just on a test bench.

Overview

The BasX A5 is a five-channel power amplifier that delivers 95 watts/channel into 8 Ohms and 130 watts/channel into 4 Ohms, all channels driven, with a rated THD+N of < 0.02%, and an A-weighted S/N ratio of 116 dB. The BasX A5 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 A5 to be used with almost any preamp or processor, and audiophile-grade five-way speaker terminals accept banana plugs, spade lugs, or bare wire. These features combine to enable the BasX A5 to deliver true audiophile performance and sound quality at an amazingly affordable price.

The BasX A5 is a great choice if you’re looking for a high-quality five-channel amplifier to go with a processor in a new 5.1 channel surround sound system, or if you’re looking for an easy way to upgrade the amps in your existing surround sound receiver.

 

Specifications

Circuit Topology

The BasX A5 is a five-channel power amplifier. The BasX A5 combines classical audiophile amplifier architecture, based on a heavy-duty linear 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 at a truly reasonable price.

Audio Specifications

Power Output (ALL channels driven)
95 watts RMS per channel; 20 Hz – 20 kHz; THD < 0.1%; into 8 Ohms. 130 watts RMS per channel; 1 kHz; THD < 1%; into 4 Ohms.
Power Output (two channels driven)
120 watts RMS per channel; into 8 Ohms. 175 watts RMS per channel; into 4 Ohms.
Power Bandwidth (at rated power; 4 Ohm – 8 Ohm load)
20 Hz to 20 kHz (+ / – 0.02 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)
> 116 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

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.

Protection

Protection
The BasX A5 is protected against excessive operating temperature, shorted speaker connections, ground faults, and other common fault conditions.

Mechanical

Dimensions
17” wide x 4” high x 15-1/2” deep (not including connectors). 21-1/2” wide x 8” high x 21” deep (boxed). Weight: 26.5 lbs (unboxed) 33 lbs (boxed)

 

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