The BasX A2+ is a stereo power amplifier by Emotiva that delivers 160 watts x 2 channels into 8 ohms with both channels driven, and 250 watts x 2 channels into 4 ohms. It was released in 2022. It is a 2-channel design using a Class A/B output stage. Speakers connect via binding posts. The Emotiva BasX A2+ has an MSRP of $799.
There are 3 Emotiva amplifiers in our database. Below you can see the main specs of these amps.
Emotiva Power Amplifier Series
Performance Specs
One of the most important factors when deciding on an integrated amplifier is its power ratings and compatibility with your speaker's impedance requirements. The Emotiva BasX A2+ is rated at 160 watts RMS into 8-ohms.
Here are the main highlights of its performance specs:
- 160 watts into 8-ohms (5 Hz-80 kHz)
- 250 watts into 4-ohms
- 112dB Signal to Noise Ratio
How loud will 160 watts actually play in your room? →
Which speakers suit the Emotiva BasX A2+?
160 W into 8 ohms, 250 W into 4.
We rank every passive speaker we cover against it on power, impedance safety and current
delivery.
Need more power?
Emotiva BasX A2+ is rated at 160 watts into 8 ohms, which puts it in our 121 to 180 watts band. The next band up is Over 180 watts, which is worth about 2.3dB more output. That is a real difference in headroom on peaks, and a modest one in how loud the system plays - power and loudness are not the same thing.
Before buying watts, check what your speakers actually need: the amp and speaker matcher works it out from their sensitivity, impedance and your room. Plenty of systems are better served by the 91 to 120 watts band and better speakers.
When pairing the Emotiva BasX A2+ with a passive Bookshelf (Stand mount) or Passive Floor Standing (Tower) speaker, you have to check if their Max Power Range is below the max wattage of the amp for the given impedance levels.
Operating your amp outside of this max range may damage the speakers.
What size of room is the Emotiva BasX A2+ Amplifier good for?
An essential deciding factor is the size of the room in which you intend to employ the Emotiva BasX A2+ amplifier. Here, taking into account its maximum power parameters, we analyzed its applicability to various size environments:
| Listening Environment |
Suitability |
| Near-field | Are you nuts? |
| Small Room | Bad |
| Mid-size Room | Poor |
| Large Room | Good |
| Very Large Room | Good |
Inputs and Outputs
Besides the performance specs of the Emotiva BasX A2+, the next important feature set that you have to evaluate is the input and output selections that it offers.
Emotiva BasX A2+ has total of 2 Analog inputs .
Inputs
- Total Number of Analog Inputs: 2
Outputs
Bluetooth Connectivity
Emotiva BasX A2+ doesn't have bluetooth connectivity feature. In order to stream your music via bluetooth, the easiest way is to connect an external bluetooth receiver to your Emotiva BasX A2+. Two bluetooth receivers that we recommend are the
iFi Zen Blue V2 and the
Audioengine B1.
Among the amps in the same price range, these are the 5 amps that have Bluetooth Connectivity:
Phono Input
Emotiva BasX A2+ doesn't have a phono input so in order to play your vinyl albums, Emotiva BasX A2+ has to be paired with a Phono Preamp that is MM (Moving Magnet) or/and MC (Moving COil) depending on your cartridge type.
Balanced connections
Emotiva BasX A2+ has a balanced XLR input. A balanced cable carries the signal twice, on two conductors of opposite polarity. Interference picked up along the way lands on both equally and cancels when the two are recombined at the far end, so the longer the cable run and the noisier the surroundings, the more the connection is worth. Whether a balanced connection also yields more power depends on how the amplifier is built inside - some are balanced end to end, others convert to single-ended internally and deliver the same power either way, so it is worth reading the maker's own wording rather than assuming.
Emotiva BasX A2+ Pros and Cons
Drawn from the published figures on this page, not from listening.
- ✓160 watts per channel into 8 ohms is more than most rooms and most speakers will ever ask for.
- ✓Damping factor of 500 means a low output impedance and firm control over a woofer.
- ✓Signal-to-noise ratio of 112dB, so the amplifier itself should be inaudible between tracks.
- ✓Balanced XLR inputs, worth having on a long cable run.
- ✓Made in USA.
- ✓Detachable mains lead (Yes).
- ✗A power amplifier has no volume control and no input selection - it needs a preamplifier, or a source with a variable output, in front of it.
Emotiva BasX A2+ External Dimensions and Weight
Emotiva BasX A2+ has external dimensions of (H x W x D) 4-1/4 x 17 x 15-1/2 inch (108 x 431.8 x 393.7 mm ). The unit weighs
11.43 kg (25.2 lbs).
Base Surface Area
Base surface area of an integrated amplifier may become an important decision factor when the space in your room or desk is limited.
The base area of the Emotiva BasX A2+ is approximately 1700.0cm2 / 263.5inch2.
- Width: 431.8mm (17")
- Height: 108.0mm (4-1/4")
- Depth: 393.7mm (15-1/2")
- Weight: 11.43 kg (25.2 lbs)
- Base Surface Area: ~1700.0cm2 / 263.5inch2
- Volume: ~18.4 liter / 4.8 gallon
Available colors
Emotiva BasX A2+ is available in Black color options.
Official Product Page
Official manufacturer's product page for the Emotiva BasX A2+ Integrated Amplifier can be found below:
Official Product Page for Emotiva BasX A2+
| General |
| Brand |
Emotiva |
| Full Model Name |
Emotiva BasX A2+ |
| Release Date |
2022 |
| Amplifier Type |
Power Amplifier |
| Number of Channels |
2 |
| Amp Class |
Class A/B |
| Amplifier Technology |
Solid State |
| Performance |
| Watts RMS per Channel into 8-ohms |
160 watts |
| Watts RMS per Channel into 6-ohms |
N/A |
| Watts RMS per Channel into 4-ohms |
250 watts |
| Frequency Bandwidth |
5 Hz-80 kHz |
| Damping Factor |
500 |
| THD |
|
| Minimum Impedance |
|
| Signal to Noise Ratio |
112 dB |
| Digital Music |
| Built-in DAC |
No |
| Bluetooth |
No |
| WiFi |
No |
| CONNECTIONS |
| Total Analog Inputs |
2 |
| Phono Input |
No |
| Headphone Output |
No |
| Removable Power Cord |
Yes |
| Speaker Connectors |
Binding posts |
| PHYSICAL SPECS |
| Height |
108.0mm (4-1/4") |
| Width |
431.8mm (17") |
| Depth |
393.7mm (15-1/2") |
| Weight |
11.43 kg (25.2 lbs) |
| Available Colors |
Black |
| OTHER |
| Parts Warranty |
|
| Labor Warranty |
|
How much power does the Emotiva BasX A2+ have?
The Emotiva BasX A2+ delivers 160 watts x 2 channels into 8 ohms with both channels driven, and 250 watts x 2 channels into 4 ohms. It increases its output into 4 ohms, so it has some headroom for harder-to-drive speakers.
Does the Emotiva BasX A2+ use vacuum tubes?
No. The Emotiva BasX A2+ is a solid-state amplifier - there are no vacuum tubes in it.
What amplifier class is the Emotiva BasX A2+?
The Emotiva BasX A2+ uses a Class A/B amplifier design. Class A/B is the traditional linear design: it runs warmer and is less efficient than Class D, but it is long valued for its natural, low-distortion sound.
Does the Emotiva BasX A2+ have a built-in DAC?
No. The Emotiva BasX A2+ has no built-in DAC, so a digital source such as a streamer or CD transport needs its own converter, or you connect it over analogue.
Can I connect a turntable to the Emotiva BasX A2+?
No. The Emotiva BasX A2+ has no phono input, so a turntable needs an external phono preamp (or a deck with one built in) before it can be connected.
Does the Emotiva BasX A2+ have Bluetooth?
No. The Emotiva BasX A2+ does not have Bluetooth built in; you would need an external Bluetooth receiver connected to one of its inputs.
Does the Emotiva BasX A2+ have a headphone output?
No. The Emotiva BasX A2+ does not have a headphone output, so headphone listening needs a separate headphone amplifier.
How much does the Emotiva BasX A2+ cost?
The Emotiva BasX A2+ has a manufacturer's list price (MSRP) of $799.
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