The BasX A-500 is a five channel power amplifier. The BasX A-500 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.
Power Output (two channels driven)
110 watts RMS per channel; 20 Hz – 20 kHz; THD < 0.1%; into 8 Ohms
190 watts RMS per channel; 1 kHz; THD < 1%; into 4 Ohms
Power Output (all channels driven)
80 watts RMS per channel; 20 Hz – 20 kHz; THD < 0.1%; into 8 Ohms
Power Bandwidth (at rated power; 8 Ohm load)
20 Hz to 20 kHz (+ / – 0.07 dB).
Broad Band Frequency Response
5 Hz to 80 kHz (+ / – 1.8 dB).
THD + noise
< 0.02% (A-weighted); at rated power; 1 kHz; 8 Ohms
Signal to Noise Ratio (8 Ohm load)
> 120 dB (A-weighted); ref rated power.
> 100 dB (A-weighted); ref 1 watt.
Minimum Recommended Load Impedance
4 Ohms; which equals one 4 Ohm load or two paralleled 8 Ohm loads.
Damping Factor (8 Ohm load)
Speaker Output Connections
Audiophile grade, 5-way binding posts.
Linear power supply with heavy duty torodial transformer.
Input Sensitivity (for rated power; 8Ohm load)
Unbalanced (RCA); one per channel.
27 kOhms (unbalanced).
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.
115 VAC or 230 VAC @ 50 / 60 Hz (automatically detected).
Front Panel Controls and Indicators
Standby; push button (halo ring changes color to indicate Standby or On).
Status LEDs; one per channel; blue.
Status LEDs change to red to indicate a fault condition.
Rear Panel Controls
AC Power switch; rocker switch (switches AC main power).
Status LEDs switch; disables front panel Status LEDs.
The BasX A-500 is protected against excessive operating temperature, shorted speaker connections, ground faults, and other common fault conditions.
17” wide x 4” high x 15.5” deep (does not include connectors)
21-1/2” wide x 8” high x 21” deep (boxed).
26.5 lbs (net)
35 lbs (boxed)