Shenzhen/SMSL RAW-HA1 Amplifier Review

[damjov]

thanks for your response @totti1965 i dont see that zd3 have some eq? I know that ha1 got some eq options.
i ask for sound difference between these because some reviewers note that smsl a300 have better and fuller bass against fosi v3 amps that sound i little more clinical in comparation. and ha1 and za3 are slightly updated versions of these? i listen the ha1 and i was pleased with sound quality and power.
if is not clearly noticeable i think that i will go with za/zd3 combo. I guess that zd3 have better quality than the ha1 dac? and i will have option for upgrade the system in the future like you said

 

[totti1965]

thanks for your response @totti1965 i dont see that zd3 have some eq? I know that ha1 got some eq options.
i ask for sound difference between these because some reviewers note that smsl a300 have better and fuller bass against fosi v3 amps that sound i little more clinical in comparation. and ha1 and za3 are slightly updated versions of these? i listen the ha1 and i was pleased with sound quality and power.
if is not clearly noticeable i think that i will go with za/zd3 combo. I guess that zd3 have better quality than the ha1 dac? and i will have option for upgrade the system in the future like you said

Oh, I was wrong about Parametric equalization of the ZD3!

I think, that sound of any Fosi V3 or Fosi V3 Mono is not „clinical“ at all, this is just typical Youtube-review Nonsense….
The Fosi V3 Bass is excellent - measurable even a bit more linear than the a300!

If you want everything a bit better- than you have to consider the Fosi V3 Monos, because they are completely load independent. Frequency response with the V3 Monos will dependent only by the speakers you use, and not differ because the Resistance of the speaker differs within his frequency range! With a ZA3 or the RAW-HA1 some speakers will sound a bit brighter and other speakers will sound a bit darker, than driven with a „perfect“ amp. So, some speakers will also „win“ a bit of sound quality (and sound more linear as with a perfect amp) with these cheap amps, others loose a bit…

Ah, yes the ZD3 seems to be a „top of the notch“ or „State of the Art“ DAC which will measure very very well…..
But I don’t expect that the differences to the RAW-HA1 are listenable, for that reason alone because the limiting factor is the amp in both cases - no matter if you would chose the integrated solution, the RAW-HA1 or the combination of Fosi ZA3 and ZD3.

 

[totti1965]

Total cool Ukrainian Website: https://rush-speakers.com.ua/en/filters-ma100-en/
Nice modifications!
Your next update may be the Crossover?
The Monitor Audio Bronze 100 Impedance from 7 kHz to 20 kHz is about 6 Ohms With or without modification…..
So, for this speaker, even the normal Fosi V3 would fit perfectly!

 

[nkck]

After replacing the AO300 with the RAW-HA1, I started hearing noise when viewing videos on my PC.
The same goes for speakers and headphones.

If you change the monitor's refresh rate from 60Hz to 120Hz to 144Hz, the noise will also change.

Is this a hardware failure of this individual? Or is it a problem with RAW-HA1 as a whole?

 

[Mike_Trueman]

After replacing the AO300 with the RAW-HA1, I started hearing noise when viewing videos on my PC.
The same goes for speakers and headphones.

If you change the monitor's refresh rate from 60Hz to 120Hz to 144Hz, the noise will also change.

Is this a hardware failure of this individual? Or is it a problem with RAW-HA1 as a whole?

How is it connected to the PC?

 

[nkck]

How is it connected to the PC?

I am connected via coaxial digital or USB and both have the same symptoms.

 

[Ismapics]

I was looking for this AMP here with the rest of the @amirm recommended amps and can't see this one as this has not been updated. It was easy to compere and look for all those that are in the blue part of the list. Any suggestions? Welcome

 

[Ismapics]

Certainly well priced, so one can't expect SOTA... cheers for the testing.

Pics;

View attachment 403092

View attachment 403093

View attachment 403094


JSmith

Do you know what chip it uses? It says Infineon and thats it.

 

[JSmith]

Do you know what chip it uses? It says Infineon and thats it.

Not 100%, but likely the Infineon MA12070;

MA12070 - Infineon Technologies

MERUS™ integrated audio amplifier ICs, 2x80W ultra power efficient. with analog input

www.infineon.com

JSmith

 

[Ismapics]

Not 100%, but likely the Infineon MA12070;

MA12070 - Infineon Technologies

MERUS™ integrated audio amplifier ICs, 2x80W ultra power efficient. with analog input

www.infineon.com

JSmith

Thanks, I don't get it I guess it's power supply. I have a Loxjie A30 and the review topped the power reading at 40W. However, this one has better SINAd and max power is 62W with the same chip. I guess I will have to skip as I was looking for more power, but I will need to look into separates.

 

[blucupp]

This thing looks as slick as an oil spill.

 

[trevor_bartram]

This is a rebadged AO300 & similar to the A300 (see ASR review) & PA40. The AL200 is similar but the PSU is on the right (rather than the left) that necessitated a PCB re-layout & may have changed performance. A contributor to ASR was singing the praises of the AL200. I listened to the AO300 for two weeks, it was functionally perfect but the sound was not equal to my reference system (the AO300 was intended as a backup) so I returned it. I'm presently trying the Fosi V3 (stereo), so far it has similar problems but was so inexpensive I'll keep it. If the AL200 got a positive ASR review I might try it, otherwise I'm done with class-D chip amps.
This winter I will recap my 80s Adcom power amp, presently it lacks bass a sure sign it needs a recap. The recap is inexpensive, so little lost if it doesn't compare. Cheers!

 

[Amogh]

That makes sense. I have a Loxjie A40 and like it.

How does a low pass filter work on Loxjie A40? and does this SMSL have the same feature?

 

[Brian Hall]

How does a low pass filter work on Loxjie A40? and does this SMSL have the same feature?

Sorry, but I don't know the answer. I just have a subwoofer plugged in and set the frequency on the subwoofer.