All I Need Is A Good Clean 80 wpc! Are We There Yet?

[VMAT4]

Apos emailed me that they are now offering the S.M.S.L A300 for sale. Here's a link to the company product page. At under $200 this is very competitive for 85 wpc at 1% THD. But, is this the good clean 80 wpc I'm talking about? Or, are one or two generations away from it. Your opinions, please.

 

[Angsty]

How much SINAD do you prefer?

 

[JSmith]

S.M.S.L A300

There is a thread on this one that may have some more info for you;

SMSL SA300 / Infineon Class D

Really curious how this chip based amp will measure up. Not expecting it to beat Hypex but how much of an improvement is it to previous chip amp?

www.audiosciencereview.com

JSmith

 

[VMAT4]

There is a thread on this one that may have some more info for you;

SMSL SA300 / Infineon Class D

Really curious how this chip based amp will measure up. Not expecting it to beat Hypex but how much of an improvement is it to previous chip amp?

www.audiosciencereview.com

JSmith

That's a different model.

 

[JSmith]

That's a different model.

My mistake, apologies... I was busy at work and clearly was not paying attention.

Looking further at the product page;

Distortion seems to start rising at fairly low levels, but seems to have around 35 - 40W @ 0.1% THD+N unweighted.

Meh...


JSmith

 

[Katji]

At under $200 this is very competitive for 85 wpc at 1% THD. But, is this the good clean 80 wpc I'm talking about? Or, are one or two generations away from it. Your opinions, please.

THD 1% is far from the 0.00-whatever of Class A/B amplifiers of 1970s. (Although I suppose the test parameters might be different.)
...Oh, pleasant surprise, the 85W is at 8 Ohms - they all used to say 60W or whatever but it turned out to be at 4 Ohms.


...High-pass filter, nice, but the user manual tells nothing about adjusting it.

 

[dominikz]

Distortion seems to start rising at fairly low levels, but seems to have around 35 - 40W @ 0.1% THD+N unweighted.

That seems to be the 0.01% point; at 0.1% it is around 55W @ 8Ohm (however that is already well on the steeply rising part of the curve, so arguably clipping...).
Looking at the graphs it seems to me there is a little less than 50W into 8Ohm / 90W into 4Ohm of clean power there.

 

[Bleib]

My mistake, apologies... I was busy at work and clearly was not paying attention.

Looking further at the product page;

View attachment 210559

Distortion seems to start rising at fairly low levels, but seems to have around 35 - 40W @ 0.1% THD+N unweighted.

View attachment 210560

Meh...


JSmith

So it's really desktop but quite suitable since it uses a digital volume control. Or for very high sensitive speakers.
Also, any speakers will have a much worse SINAD than this amp

Edit: How about the new Sabaj?

SMSL A300 Hi-res Power Amplifier 165W*2 BTL Mode Bluetooth 5.0

SMSL A300 Hi-res Power Amplifier 165W*2 BTL Mode Bluetooth 5.0 Support Passive Speakers & Active Subwoofers With Remote Control Input:RCA,BT,USB THD+N:0.004% SNR:103dB ChanneL separation:85dB Cutoff frequency (in high pass mode):50Hz Input Sensitivity / Input Impedance:28OmV/22kΩ Output Power...

hifi-express.com

 

[Daverz]

...High-pass filter, nice, but the user manual tells nothing about adjusting it.

The data sheet just says "50 Hz".