BasX A-100 Stereo Flex Amplifier

Stereo Flex Amplifier

65 reviews
$229.00

  • BasX A-100 Stereo Flex Amplifier
  • BasX A-100 Stereo Flex Amplifier
  • BasX A-100 Stereo Flex Amplifier
  • BasX A-100 Stereo Flex Amplifier
  • BasX A-100 Stereo Flex Amplifier
  • BasX A-100 Stereo Flex Amplifier
  • BasX A-100 Stereo Flex Amplifier
  • BasX A-100 Stereo Flex Amplifier
  • BasX A-100 Stereo Flex Amplifier
  • BasX A-100 Stereo Flex Amplifier
  • BasX A-100 Stereo Flex Amplifier

BasX A-100 Stereo Flex Amplifier

Stereo Flex Amplifier

65 reviews
$229.00

The BasX A-100 offers all the essential features that make a great audio component, like a heavy duty power supply, great sounding high-current short signal path Class A/B amplifiers, industry standard unbalanced audio inputs, and full-sized five-way binding post speaker terminals. The BasX A-100 delivers a solid 50 watts per channel into 8 Ohms and 80 Watts per channel into 4 Ohms; plenty to drive most speakers to satisfying listening levels. The BasX A-100 also offers several useful extra features that earn it the designation of Flex Amplifier. The BasX A-100 includes a standard trigger input and output, but it can also be configured to switch on automatically when it senses an incoming audio signal, which makes it perfect for use in a remote zone.

The BasX A-100 also includes a front panel Volume Control and a front panel headphone output. Fans of vintage equipment will especially love the sound of the headphone output on the A-100, which is derived directly from the main amplifier outputs through precision dropping resistors – like the great sounding headphone outputs on high-quality vintage gear. If you’ve found the sound of the headphone outputs on other modern equipment lacking, then you need to check out the A-100. Another special feature of the headphone outputs on the BasX A-100 is their ability to drive even the lowest efficiency planar headphones with ease. A pair of internal jumpers allows you to bypass the dropping resistors and route the amplifier outputs of the A-100 directly to the headphone output – and avoid the need for messy external adapter cables. The super quiet amplifier circuitry in the A-100 ensures a low noise floor, even with the direct connection.


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  • Overview

    The BasX A-100 offers all the essential features that make a great audio component, like a heavy duty power supply, great sounding high-current short signal path Class A/B amplifiers, industry standard unbalanced audio inputs, and full-sized five-way binding post speaker terminals. The BasX A-100 delivers a solid 50 watts per channel into 8 Ohms and 80 Watts per channel into 4 Ohms; plenty to drive most speakers to satisfying listening levels. The BasX A-100 also offers several useful extra features that earn it the designation of Flex Amplifier. The BasX A-100 includes a standard trigger input and output, but it can also be configured to switch on automatically when it senses an incoming audio signal, which makes it perfect for use in a remote zone.

    The BasX A-100 also includes a front panel Volume Control and a front panel headphone output. Fans of vintage equipment will especially love the sound of the headphone output on the A-100, which is derived directly from the main amplifier outputs through precision dropping resistors – like the great sounding headphone outputs on high-quality vintage gear. If you’ve found the sound of the headphone outputs on other modern equipment lacking, then you need to check out the A-100. Another special feature of the headphone outputs on the BasX A-100 is their ability to drive even the lowest efficiency planar headphones with ease. A pair of internal jumpers allows you to bypass the dropping resistors and route the amplifier outputs of the A-100 directly to the headphone output – and avoid the need for messy external adapter cables. The super quiet amplifier circuitry in the A-100 ensures a low noise floor, even with the direct connection.

    BasX: The Foundation of a Superb Audio System

    The goal of putting together an exceptional audio system is to enrich your life with outstanding sound. It isn’t about spending a lot of money, or about fancy knobs and jewel encrusted remote controls; it’s all about playing the music. As a leading manufacturer of home audio equipment, we’ve noticed that a lot of people still don’t have high-quality audio in their lives. Some folks don’t have the budget to buy good equipment, while others don’t have the time to spend trying to figure out how to use it – and that’s exactly why we developed our new Emotiva BasX products. Our BasX components combine great sound quality, a carefully chosen set of genuinely useful features, and rock solid performance, with a simple yet elegant design.

    This unique combination allows us to offer a combination you just can’t find anywhere else – great sound and great value. All of the components in our new BasX line are priced to be within reach of every music lover. You don’t need to be rich to afford them, and you don’t need to be an engineer to figure out how to use them. They’re carefully crafted to give you many years of reliable and trouble-free service, and they’ll look great in your living room or on your audio rack. You can build a complete music system out of our BasX components that will give you a true audiophile listening experience. Or try adding one or two BasX components to round out your existing audio system. Great sounding audio doesn’t have to be expensive or complicated.

    BasX Simplicity

    While the BasX A-100 offers lots of performance, you won’t need an advanced degree to install and use it, and you won’t need to rewire your home. Just set the correct line voltage, plug the BasX A-100 into an outlet, connect it to your preamp or processor and your speakers, and you’re done.

    BasX Quality

    The BasX A-100 is built to last, with a heavy duty steel chassis, solid milled aluminum faceplate, and high-quality parts and construction throughout. We expect you to enjoy your BasX A-100 for a long time – and we back that up with a full three-year warranty.

    Why We Call The A-100 a Flex Amp

    The BASX A-100 is a great sounding, compact, and very flexible, stereo amplifier. The A-100 includes features that make it an excellent choice for a wide variety of situations; from driving a small music system in a home or business, to providing audio for a second zone in a larger home theater installation, or whole house music system. The A-100 also includes a great sounding headphone output, which combines the sonic signature of high-end vintage equipment with the superb performance of modern circuitry, and which offers the ability to drive low-efficiency planar headphones without the need for adapters and custom cables.

  • 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 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.

    • The BasX A-100 may be a small amplifier, but it shares the same superior design and high-quality parts as our bigger amplifiers, so it performs “like the big boys” and sounds far better than most amps in its price and power class.

    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 for years of reliable trouble-free service.

    • Heavy steel 2RU 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.

    • The A-100’s volume knob is surrounded by an illuminated ring, which indicates both Power and Fault status.

    Flexible Signal Connections and Power Options

    • Unbalanced inputs via industry standard RCA connectors accept 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.

    • Flexible power switching enables the A-100 to be configured to switch on when a trigger is received and when it senses audio signal on its inputs. The Trigger Output can be used to pass trigger signals to other components.

    • The BasX A-100 is designed to operate on either 115 VAC or 230 VAC at 50/60 Hz (simply select the correct line voltage using the convenient switch).

    • A loop output provides a duplicate of the input signal to facilitate chaining additional amplifiers or other devices.

    Special Headphone Features

    • Classic style headphone output, driven from the main amplifier outputs via a set of high-quality series resistors, duplicates the sound signature of the highly-prized headphone outputs on high-end vintage equipment.

    • Direct output option for low-efficiency planar headphones allows you to route the main speaker outputs of the A-100 directly to the headphone jack to drive low-efficiency planar headphones properly without special cables or adapters.

    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.

  • Circuit Topology

    • The BASX A-100 is a great sounding, compact, and very flexible, stereo amplifier. The A-100 includes features that make it an excellent choice for a wide variety of situations; from driving a small music system in a home or business, to providing audio for a second zone in a larger home theater installation, or whole house music system. The A-100 also includes a great sounding headphone output, which combines the sonic signature of high-end vintage equipment with the superb performance of modern circuitry, and which offers the ability to drive low-efficiency planar headphones without the need for adapters and custom cables.

    Audio Specifications

    • Power Output (main outputs; two channels driven):
      50 watts / channel RMS; 8 Ohms; 20 Hz – 20 kHz; <0.05% THD.
      80 watts / channel RMS; continuous; into 4 ohms.

    • Power Output (headphone output; normal mode):
      8 Ohms: 60 mW / channel
      33 Ohms:  200 mW / channel
      47 Ohms:  250 mW / channel
      150 Ohms: 430 mW / channel
      300 Ohms: 440 mW / channel
      600 Ohms: 350 mW / channel

    • Power Output (headphone output; direct drive mode)
      (requires internal jumper; USE WITH CAUTION):
      8 Ohms:  50 watts / channel
      33 Ohms:  12 watts / channel
      47 Ohms:  8.5 watts / channel
      150 Ohms:  2.6 watts / channel
      300 Ohms:  1.3 watts / channel
      600 Ohms:  0.6 watts / channel

    • Broad Band Frequency Response: 20 Hz – 20 kHz + / - 0.08 dB at 1 watt
      (-1 dB at 80 kHz).

    • Signal to Noise Ratio (8 Ohm load): > 110 dB; ref rated power; (A-weighted).

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

    • Damping Factor (8 Ohm load): > 500.

    • Input Sensitivity (for rated power; 8 Ohm load): 600 mV (0.6V).

    • Input Impedance: 27 kOhms.

    Input And Output Connections

    • Input Connections: Unbalanced (RCA); one each per channel.

    • Output Connections: Loop output (RCA); one each per channel.

    • Speaker Output Connections: Audiophile grade 5-way binding posts.

    • Headphone Output:
      Front panel jack; full sized 1/4”.
      Headphone output is derived from the main speaker outputs via
      high quality 220 Ohm resistors.
      Optional high-power mode for driving low-efficiency planar headphones.

    • Trigger:
      The BasX A-100 may be configured to be turned on manually, or by a trigger signal from a preamp or processor, or to turn on automatically when it senses an audio signal on any of its inputs.
      Manual 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 (user selected).

    Front Panel Controls and Indicators

    • Volume; analog potentiometer with machined aluminum knob and
      illuminated status ring.

    Rear Panel Controls

    • AC Power switch.

    • Line Voltage (protected slide switch).

    • Trigger Switch (mode) (On, Off, Auto).

    Protection

    • The BasX A-100 is protected against excessive operating temperature, shorted speaker connections, ground faults, and other common fault conditions.

    Mechanical

    • Dimensions:
      (Unboxed) 8-1/2” wide x 3.125” high x 15” deep (including feet, connectors, Volume knob).
      (Boxed) 13” wide x 8” high x 18” deep.

    • Weight:
      11.8 lbs (unboxed).
      15 lbs (boxed).

    Downloads

    Download Product Manual

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Customer Reviews
4.9 Based on 65 Reviews
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Filter Reviews:
JS
10/02/2019
Jesse S.
Absolutely perfect amp for desktop use, pairs beautifully with my T-Zero pair.

After reading and watching a couple of reviews, I ordered my A-100 with the expectation that I'd get about as solid a headphone amp as I could hope for, and a good-enough speaker amp for desktop use. The headphone amp bit is spot-on; I have no doubt I've got all the power I need for any headphone I could ever buy. As it is, this pairs beautifully with my HD-58X headphones, and I haven't even bothered with the jumper bypass on the headphone output - and in fact I probably won't, as I am not left wanting for volume or fullness. Where I'm more pleasantly surprised than I thought I might be is in the speaker amplification part - I have this powering a pair of T-Zero towers and it's just fantastic. Easily all the power I could ever want for this kind of application (desktop, near-field use) and the sound is full and fantastic. Also clean, I don't notice any hiss from the speakers or headphones when music is paused. All-in-all, I'm incredibly impressed, especially considering the asking price. I really can't recommend this thing enough.

SE
09/22/2019
Steve E.
Desktop Amp

A 100 works and fits perfectly for a desk (win 10) streaming system.

LD
08/17/2019
Larry D.
BasX A-100 amplifier; superb in every way.

I recently purchased the BasX A-100 amplifier while looking for an affordable amp to power my PSB Imagine B bookshelf speakers. I researched the common suppliers, and I have bought from Emotiva in the past, so I returned here to find the BasX A-100. I thought that the 50 / 80 watts per channel might be a bit too light for the speakers so I gave it a shot. Right out of the box I was amazed at the beauty of the piece, but still questioned whether or not this would make my PSB speakers shine more than they do. After a very simple set up, I had my answer. Clean & powerful music erupted from the speakers, and the volume was only turned up half way (I've got this amp connected to a Marantz receiver). There is no heat whatsoever coming off this amp, even if I have the volume turned up all the way. This little amp is pure class and pure power, with no evidence that it can produce this kind of sound from a small box. The imaging from the speakers is pretty astounding as is the clarity and quietness. What is even more astounding is the price on this amp; you not only get the Emotiva quality, you also get the added headphone jack which is unheard of in most companies. It is quite incredible that Emotiva can put so much class and power into a box and add in a headphone jack for this price; these things should be flying off the shelves. If you are in the market for a power amp that doesn't break the bank and defies the law of size vs output quality, you need not look further.

JK
08/02/2019
Jordon K.
BASX-A100 - Pretty Awesome

Sound is amazing and plenty of power Would like to see the volume knob have an indicator so you know where the volume is set. Would also like to see a front button for soft power on and off as it's kind of awkward reaching behind such a long unit to toggle power when it hits protect mode or your done listening and want to conserve power till next time.

OZ
07/28/2019
Othoniel Z.
Great product

I bought the A 100 because, every review i read and watch agree that it is a great product, an indeed im not desapointed at all. 10/10

*All reviews have been incentivized