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Amplificador de potencia monobloque BasX A1

Monoblock Power Amplifier
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The BasX A1 is a monoblock amplifier ideal for driving dedicated power to your most important spe...More

The BasX A1 is a monoblock amplifier ideal for driving dedicated power to your most important speakers. Use the A1 as the foundation for a high-performance stereo system or to give every speaker in your system the ultimate assurance of pure channel isolation.Less

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.
Monoblock design for the ultimate in separation and flexibility.
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  • Features

  • Overview

  • Specs & Downloads

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, lets 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.

True monoblock design delivers absolute isolation between channels.

Solid Engineering And Quality Construction

A heavy duty linear power supply with an oversized toroidal power transformer delivers plenty of current to drive even difficult speakers. Top quality parts and construction throughout deliver years of reliable trouble-free service. Heavy steel chassis with milled aluminum faceplate offers strength and rugged good looks. Double sided FR4 circuit boards, with plated-through holes, help optimize signal paths and minimize the need for point-to-point wiring.

Flexible Signal Connections and Power Options

Unbalanced input via industry standard RCA connector accepts all standard unbalanced interconnects.

Heavy duty insulated five-way speaker binding posts allow you to use a wide range of speaker cables with bare wires, lugs, or banana plugs.

Remote trigger input and output allow the BasX A1 to control and be controlled by other trigger-enabled equipment.

The BasX A1 is designed to operate on either 115 VAC or 230 VAC at 50/60 Hz and will automatically detect and configure itself for the proper line voltage.

Stylish New Look

Our redesigned front panel gives the new BasX A1 a sleek modern aesthetic that fits well with virtually any room décor.

Strong Yet Silent System Protection

Audiophile-grade fault protection is entirely transparent under normal listening conditions, yet protects the amp and your other equipment from virtually all common faults.

Full three-year warranty ensures that you’ll be able to enjoy your BasX power amplifier for years to come.

The BasX A1 is a monoblock power amplifier that delivers 200 watts into 8 Ohms and 325 watts into 4 Ohms, with a rated THD+N of < 0.02%, and an A-weighted S/N ratio of 112 dB. The BasX A1 features a heavy-duty linear power supply, high-quality Class A/B amplification, transparent fault protection, and a trigger input and output. A high quality industry standard unbalanced RCA input enables the BasX A1 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 A1 to deliver true audiophile performance and sound quality at an amazingly affordable price.

In addition to the features it shares with our other BasX power amplifiers, as a true monoblock the BasX A1 also offers several other benefits that will be appreciated by dedicated audiophiles. Monoblocks offer the ultimate assurance that there will be no unwanted interaction between channels. The audio signal for each channel is handled by a separate amplifier, powered by its own heavy duty power supply, housed in its own separate chassis. This also gives you the option of minimizing the length of your speaker cables by locating each amplifier close to the speaker it powers.

Simply choose as many BasX A1 monoblocks as you need today… or use them for your most critical channels today and upgrade your other channels later. And, of course, a BasX A1 is also a great way to upgrade your center channel to match your main stereo pair.

Circuit Topology

  • The BasX A1 is a monoblock (one channel) power amplifier. The BasX A1 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: 

• 200 watts RMS; 20 Hz – 20 kHz; THD < 0.05%; into 8 Ohms
• 325 watts RMS; 1 kHz; THD < 0.1%; 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: 5 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; referenced to 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): 1.6 V

Gain: 29 dB

Input Impedance: 27 kOhms

Input And Output Connections

Input Connection: Unbalanced (RCA)

Speaker Output Connections: Audiophile grade 5-way binding posts


• 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 LED: one; blue

Status LED: changes to red to indicate a fault condition

Standby LED: amber

Rear Panel Controls

AC Power switch: rocker switch (switches AC main power)

Status LED switch: disables front panel Status LED


  • The BasX A1 is protected against excessive operating temperature, shorted speaker connections, ground faults, and other common fault conditions.


• 17” wide x 4” high x 15-1/2” deep (not including connectors)
• 21-1/2” wide x 8” high x 21” deep (boxed)

• 22 lbs (unboxed)
• 30 lbs (boxed)


 Download Product Manual

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