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Edited June 8, 2021
at 11:26 AM
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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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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.
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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.
Hint--Don't buy it unless it is heavy.
That's what I need, the sound primarily. I'll check those spots this weekend.
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&
Coupled with their tube preamplifier, the sound really comes out - and provides Bluetooth 5.0
https://www.amazon.com/dp/B07QNPX...UTF8&
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...
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.
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
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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.
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!
Thanks for helping!
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Why?
* Excellent price
* Great SQ
* Small footprint
* Highly portable