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Emotiva BasX A-100 Stereo Flex Amplifier Expired

$199
$229.00
+ Free Shipping
+68 Deal Score
52,260 Views
Emotiva.com has Emotiva BasX A-100 Stereo Flex Amplifier on closeout for $199. Shipping is free.

Thanks to community member dlfdr43 for sharing this deal.

Key Features:
  • 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
Good Deal?

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Edited June 8, 2021 at 11:26 AM by
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.

https://emotiva.com/collections/a...ucts/a-100
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$199
$229.00

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Featured Comments

15% discount? I like half price closeouts
It is a poor headphone amp for 99.5% of headphones. If most people are buying it for that then most are buying the wrong thing.

It has LOTs of power, like you said, but also LOTS of noise relative to good $100-$150 headphone amps and a high likelihood of channel imbalance. The recent Audioscience Review test
[audiosciencereview.com] shows distortion at .012%, Noise at 78dB below signal, and about .5dB L/R channel difference at 5W (likely higher at headphone volumes).
By comparison the $99 Schiit Heresy has .0007% distortion, Noise 103dB below signal, no channel imbalance...and PLENTY of power for 99.5% of all headphones. Plus, the Heresy has an external gain switch, so you do not have to open the chassis anytime you want to switch between high/low sensitivity headphones.
agreed. Not much of a discount for a discontinued model

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Joined Jul 2018
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> bubble2 146 Posts
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NikAnon
05-16-2021 at 07:22 PM.
05-16-2021 at 07:22 PM.
Quote from Groch :
It is a poor headphone amp for 99.5% of headphones. If most people are buying it for that then most are buying the wrong thing.

It has LOTs of power, like you said, but also LOTS of noise relative to good $100-$150 headphone amps and a high likelihood of channel imbalance. The recent Audioscience Review test [audiosciencereview.com]
shows distortion at .012%, Noise at 78dB below signal, and about .5dB L/R channel difference at 5W (likely higher at headphone volumes).
By comparison the $99 Schiit Heresy has .0007% distortion, Noise 103dB below signal, no channel imbalance...and PLENTY of power for 99.5% of all headphones. Plus, the Heresy has an external gain switch, so you do not have to open the chassis anytime you want to switch between high/low sensitivity headphones.
Good to see data. Do you know how the numbers translate to listening? Will itbe audibly different?
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Joined Jun 2016
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> bubble2 1,578 Posts
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phrodini
05-16-2021 at 07:35 PM.
05-16-2021 at 07:35 PM.
Quote from threebeers :
I appreciate these amp discussions. For those seeking an amp to drive good speakers, your local Goodwill or other thrift shop, after hunting and googling, will yield you a monster amp for less than $100. Not "silvers" since those are collected, but the really high end stuff from 10-15 years ago, after the original owner ditched them for the spouse factor or otherwise. I've got an originally 600 dollar HK and 400 dollar JVC D amp together for under 100 total. Ditched all the bells and whistles in settings and have them set to one input VLC flac streams through the phone and a server. I don't care about harmonic distortion, I have a concert hall.

Hint--Don't buy it unless it is heavy.

That's what I need, the sound primarily. I'll check those spots this weekend.
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Joined Sep 2013
L4: Apprentice
> bubble2 475 Posts
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Jorge-EJ
05-16-2021 at 07:38 PM.
05-16-2021 at 07:38 PM.
How would this pair with the hifiman he-560 v4 that are also listed on SD? Good pair? Would I use the jumpers with this amp and this headphones?
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Joined Nov 2004
Bargain Junkie
> bubble2 710 Posts
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pthartmann
05-16-2021 at 07:51 PM.
05-16-2021 at 07:51 PM.
Quote from jsuh0 :
Save your money and get an Aiyima A07 with power supply for $80

I second this.
My Aiyima A07 blows away the Yamaha and Onkyo ~$1000 class A/B receivers I've had over the years, for stereo. (Which the receivers have been, and still are, great for surround, DTS/Dolby etc)

With the basic 32v PSU it came with I'm currently driving some old Bose 701s in the garage that can be heard down the street, very low distortion.

Small size, fanless, no heat.
A lot of Watts and low noise/THD for the $

https://www.amazon.com/dp/B08CJZG...UTF8&psc=1


Coupled with their tube preamplifier, the sound really comes out - and provides Bluetooth 5.0
https://www.amazon.com/dp/B07QNPX...UTF8&psc=1

Also looks like 5% and 6% off respectively.

You could definitely find better and/or cheaper TPA3255 boards/amps out there, but you may be waiting weeks/months on shipping.

Also can upgrade opamps, capacitors/filters, but unless you have incredibly sensitive hearing, I recommend starting with something like this Aiyima - and even then, probably won't disappoint.

My next upgrade will be PSU, but likely that's just going to end up pissing off the wife, the neighbors, and get the cops called...
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> bubble2 2,962 Posts
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Groch
05-16-2021 at 09:17 PM.
05-16-2021 at 09:17 PM.
Quote from NikAnon :
Good to see data. Do you know how the numbers translate to listening? Will it be audibly different?
The measurements of the BasX are poor enough relative to good cheap headphone amps that it is likely you could hear the difference in a direct comparison. It's 78dB noise spec is about 20 dB higher than the noise in CDs, and perhaps 30dB higher than good DACS....so the increase in background hiss could be heard in soft passages or between cuts. The Left/Right channel imbalance might be more noticeable, depending on the volume pot of your particular unit.

That does not means the BasX would sound bad, I imagine many owners are happy with it. The hiss will bother some people, others it won't. Its just that buying one to play headphones makes no sense when there are headphone amps at half the price that perform much better. The Hifiman HE-560v4 headphones were mentioned. I own those, and my $99 JDS Atom amp provides FAR more power than they need...at much lower noise and distortion than the BasX. Heck...for $200 you could get both a better headphone amp AND a darn good DAC.

It makes me sad that people make technical purchase decisions based on random posters on a deals site. If you want to make the best decisions do a little research outside of listening to posters here...including me.
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> bubble2 13 Posts
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VRVA
05-16-2021 at 09:23 PM.
05-16-2021 at 09:23 PM.
Quote from namlook :
The main selling point of the A-100 is not as an amp to drive speakers, although it does that pretty well, but it has an internal jumper that lets you send the full power of the amp to the headphone jack for hard to drive headphones.

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



You can purchase headphones connector for $9 (https://www.amazon.com/DuKabel-TopSeries-Headphone-Extension-Amplifier/dp/B07Q22G133), cut the plug and connect the wires to speaker outputs. Your speakers to headphones adapter is ready!
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Joined Dec 2019
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> bubble2 2,683 Posts
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User18383921
05-16-2021 at 09:47 PM.
05-16-2021 at 09:47 PM.
Quote from itsarectangle :
15% discount? I like half price closeouts
post covid "closeout"
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Joined May 2006
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> bubble2 25,477 Posts
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namlook
05-16-2021 at 11:45 PM.
05-16-2021 at 11:45 PM.
Quote from VRVA :
You can purchase headphones connector for $9 (https://www.amazon.com/DuKabel-To...B07Q22G133), cut the plug and connect the wires to speaker outputs. Your speakers to headphones adapter is ready!
Did you do it?
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Joined Nov 2013
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> bubble2 958 Posts
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tCLOCK
05-17-2021 at 12:39 AM.
05-17-2021 at 12:39 AM.
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Joined Dec 2012
L10: Grand Master
> bubble2 9,245 Posts
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JimBanville
05-17-2021 at 05:31 AM.
05-17-2021 at 05:31 AM.
Quote from threebeers :
I appreciate these amp discussions. For those seeking an amp to drive good speakers, your local Goodwill or other thrift shop, after hunting and googling, will yield you a monster amp for less than $100. Not "silvers" since those are collected, but the really high end stuff from 10-15 years ago, after the original owner ditched them for the spouse factor or otherwise. I've got an originally 600 dollar HK and 400 dollar JVC D amp together for under 100 total. Ditched all the bells and whistles in settings and have them set to one input VLC flac streams through the phone and a server. I don't care about harmonic distortion, I have a concert hall.

Hint--Don't buy it unless it is heavy.

Lol. Stop giving away our secret! Haha.
A few weeks ago I snagged a VERY NICE Sony DA50 "ES" AVR at goodwill for $7!!!!!! That was like a $500-$1K receiver when new, depending on when you bought it. Works perfect. Only issue was the volume knob. It's got a red fiber optic pointer that moves around the knob as you adjust the volume with the remote (motorized volume pot). The knob has an inner shell and the outer cosmetic "cover". That outer cover was missing. I found a very similar, like new complete knob on eBay for $13. Now my ES receiver looks and works like new...for $20 total! It weighs a ton though. Lol.
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Last edited by JimBanville May 17, 2021 at 05:35 AM.
Joined Mar 2018
L2: Beginner
> bubble2 67 Posts
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FuschiaPocket3250
05-17-2021 at 06:10 AM.
05-17-2021 at 06:10 AM.
Thoughts on this for Infinity Reference 152 bookshelf speakers? Looking to upgrade from a smsl class d amp that I feel sounds pretty hollow with the speakers.
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> bubble2 201 Posts
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PhillyChad
05-17-2021 at 06:33 AM.
05-17-2021 at 06:33 AM.
Can someone answer a quick question for me...

I'm trying to learn and put together a (somewhat) decent entry level home theater and enjoy listening to headphones.

I've read alot about "sound" regarding this unit.... but is it also an amp or does it have to be paired with a AVR?

I bought a pair of Sennheiser HD 650's and only had the opportunity to use them by way of my cell (Samsung Note 20 Ultra).

They don't get loud enough in terms of volume. Would this be able to help with that?

Again, new to all of this... wondering what exactly this does as opposed to let's say plugging in my 'phones directly to my (yet unpurchased) AVR.

Thanks for helping!
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Joined Oct 2014
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> bubble2 411 Posts
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batavoosh
05-17-2021 at 06:36 AM.
05-17-2021 at 06:36 AM.
I like this amp a lot, for regular speakers only, but no remote kills it for me. Looks a little deep for a desktop only application
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> bubble2 374 Posts
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e2m
05-17-2021 at 06:48 AM.
05-17-2021 at 06:48 AM.
Quote from PhillyChad :
Again, new to all of this... wondering what exactly this does as opposed to let's say plugging in my 'phones directly to my (yet unpurchased) AVR.

Thanks for helping!
I suppose it depends on the particular AVR, but in general, most AVRs do not provide enough output to drive high impedance headphones (such as your HD650) to a reasonable sound level. The A-100 can be configured to drive such headphones easily. However, the A-100 is not an AVR. For home theater/surround sound, you will still need an AVR.
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> bubble2 3,391 Posts
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smokarz
05-17-2021 at 08:58 AM.
05-17-2021 at 08:58 AM.
Just got myself an Aiyima A07.

Why?

* Excellent price
* Great SQ
* Small footprint
* Highly portable
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