The BasX A2L+ is a flexible two channel power amplifier that delivers 50 watts / channel into 8 Ohms and 90 watts / channel into 4 Ohms, all channels driven, with a rated THD+N of < 0.1%, and an A-weighted S/N ratio of 112 dB. The BasX A2L+ features a heavy-duty linear power supply, high-quality Class A/B amplification, transparent fault protection, and a trigger input and output. The BasX A2L+ offers individual unbalanced RCA inputs, so it can be used with almost any preamp or processor, and any AVR that has preamp outputs. Unbalanced passthrough outputs make it simple to chain multiple A2L+ amps together and a variable gain reduction adjustment simplifies matching levels between multiple stereo zones. Audiophile grade five way speaker terminals accept banana plugs, spade lugs, or bare wire. These features combine to enable the BasX A2L+ to deliver true audiophile performance and sound quality at an amazingly affordable price.

The BasX A2L+ is the perfect combination of modest power, and true audiophile sound quality, in a compact form factor. The BasX A2L+ also includes several features that make it the ideal solution for powering multiple separate stereo zones.

Circuit Topology

• The BasX A2L+ is a stereo power amplifier. The BasX A2L+ 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:

(Two Channels Driven)
• 50 watts RMS per channel; 20 Hz – 20 kHz; THD < 0.1%; into 8 Ohms

• 90 watts RMS per channel; 1 kHz; THD < 1%; 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):
> 112 dB; ref rated power; (A-weighted)

Minimum Recommended Load Impedance (per channel): 4 Ohms (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

Output Connections (loop outputs): 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.

Auto-On: Turns on the BasX A2L+ when an audio signal is detected.

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

• Gain Reduction Adjustment: Allows you to adjust the gain of the BasX A2L+ between 18 dB to 29 dB.

Protection

• The BasX A2L+ is protected against excessive operating temperature, shorted speaker connections, ground faults, and other common fault conditions.

Mechanical

Dimensions:
• 17” wide x 3-1/8” high x 12-1/2” deep (unboxed; including feet).

• 21-1/2” wide x 7” high x 17” deep (boxed)

Weight:

• 15 lbs (unboxed)

• 23 lbs (boxed)

Downloads

 Download Product Manual