Sorry, I originally misread you as saying that including HPF would be a big mistake, hence why I questioned you (I must’ve imagined a comma after the initial, “No.”).
-Ed
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Aiyima A80: TPA3255 Stereo Amplifier with ESS9038Q2M DAC: First Look
- Thread starter Guddu
- Start date
-Ed
Does it have an HPF?People hi !
I think you shouldn't rush and wait for the very next release of an O-NOORUS amplifier that takes the essence of this amplifier but with components that have better features (like the DAC ship, BT chip,...) as well as with additional features (like HDMI ARC
... it won't be long before you find out
PS: I don't understand why AIYIMA added (fakes) 'TRS' entries that don't bring ANYTHING AT ALL ???
ICIETDIYEUR
Active Member
Hi.
It's up to O-NOORUS to reveal the characteristics of its next products: I don't have this authorization, sorry.
However, I do believe that these models will probably somehow inherit the 'MOD' that I presented about their D1 amplifier
In order to illustrate my words about this 'MOD' of the D1 O-NOORUS model, let me offer you this table ->
These are various models of well-known and rather well-rated Class D amplifiers in the AMIR ASR ranking
Regards.
PS: Sorry for my very bad English, I'm only a Frenchman (no one is perfect) -> LOL
It's up to O-NOORUS to reveal the characteristics of its next products: I don't have this authorization, sorry.
However, I do believe that these models will probably somehow inherit the 'MOD' that I presented about their D1 amplifier
In order to illustrate my words about this 'MOD' of the D1 O-NOORUS model, let me offer you this table ->
These are various models of well-known and rather well-rated Class D amplifiers in the AMIR ASR ranking
Regards.
PS: Sorry for my very bad English, I'm only a Frenchman (no one is perfect) -> LOL
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elshaddai
Member
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Pretty sure they're using the Infineon 12070 chip, but they describe it with a "proprietary audiophile pre-amp stage". Who knows? /shrug
Is PFFB specific to the TI chips used by Fosi and others, or is that a generic engineering design that applies to all amp chips?
Seems like an Advert???People hi !
I think you shouldn't rush and wait for the very next release of an O-NOORUS amplifier that takes the essence of this amplifier but with components that have better features (like the DAC ship, BT chip,...
... it won't be long before you find out
I think it might be appropriate to ask O-NOORUS about this
PS: I don't understand why AIYIMA added (fakes) 'TRS' entries that don't bring ANYTHING AT ALL ???
I think paired with a WiiM Ultra this Amplifier will provide a very nice system. The Ultra has the subwoofer output and bass management with room correction EQ, LPF and HPF filters and a nice app to configure everything. Then adding this Amplifier via a digital output from the Wiim Ultra gives you decent power and nice VU meters. And you can use the trigger output from the WiiM Ultra to wake up this amplifier.
ICIETDIYEUR
Active Member
Yes, it is. Two new models will be released, including one comparable to this AIYIMA A80 amplifier but which surpasses it in every way.
Wait and see
Both models will be with HDMI ARC...
... That's all I'm allowed to say and even more because in fact I'm spoiling their release
They are currently in the final stages of production
Wait and see
Both models will be with HDMI ARC...
... That's all I'm allowed to say and even more because in fact I'm spoiling their release
They are currently in the final stages of production
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ICIETDIYEUR
Active Member
I can also specify that these two models integrate the same principle as my 'MOD' presented for the D1
Regards.
At some point the balanced audio signal coming in will have to be converted back to a single ended signal inside the amp. No point in keeping the signal symmetrical right until it reaches the speaker outputs.People hi
Regarding this amplifier, don't be fooled by the 'TRS' (balanced) inputs
These are 'fake TRS inputs' since this amplifier uses the volume control chip NJW1194 which does not know how to 'process' a balanced signal
You can check in the DATASHEET
PS: and Bluetootht 'only' 5.2, 'old' ES9038, no HDMI ARC,...
... It all sounds a bit 'cheap'
Regards.
at $230 i think this is a good device
like a lot of you guys I would echo the usual...
lose the TRS and slap in an hdmi
lose the RCA and all ADC stages
you need a subwoofer out with a menu controllable cut off AND slope
AND then put in main channel cut offs as well
also tell us if its a 48v 5amp psu so we can work out what the power is
with all the other stuff taking power i'd expect this is a true 70w 8 ohm device?
like a lot of you guys I would echo the usual...
lose the TRS and slap in an hdmi
lose the RCA and all ADC stages
you need a subwoofer out with a menu controllable cut off AND slope
AND then put in main channel cut offs as well
also tell us if its a 48v 5amp psu so we can work out what the power is
with all the other stuff taking power i'd expect this is a true 70w 8 ohm device?
And PEQ!
ICIETDIYEUR
Active Member
Hi.
In fact, what you saw must have been pre-orders or worse: they have already had feedback from unhappy customers ?
At the moment, no one knows...
@ pieterv1:
What you have written is not correct.
The TPA255 is originally intended to work with a balanced signal as shown in the DATASHEET and even using a digital volume control it is achievable as shown in the DATASHEET of the NJW1195A chip for example - >
I hope that the visualization of its pages will allow you an easy understanding and that it will have convinced you.
Regards.
In fact, what you saw must have been pre-orders or worse: they have already had feedback from unhappy customers ?
At the moment, no one knows...
@ pieterv1:
What you have written is not correct.
The TPA255 is originally intended to work with a balanced signal as shown in the DATASHEET and even using a digital volume control it is achievable as shown in the DATASHEET of the NJW1195A chip for example - >
I hope that the visualization of its pages will allow you an easy understanding and that it will have convinced you.
Regards.
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ICIETDIYEUR
Active Member
Hi.
Harkpabst:
I don't want to be derogatory or mock, that's not my attention, but inform yourself before writing incomplete and false arguments in context.
You only have to look at Amir's reviews to understand the differences in measurements between an unbalanced (RCA) and a balanced (XLR) input.
My 'false TRS' argument must have been misinterpreted:
I mean that AIYIMA should specify that its sockets are present for more 'compatibility' with other devices but that they do not offer the advantages of this type of link when its internal links are really in 'symmetrical 'mode' since internally it is necessarily used an OPAMP 'desymmetrizer' allowing to use the digital volume control chip NJW1194 which does NOT work in symmetrical mode.
Regards.
Harkpabst:
I don't want to be derogatory or mock, that's not my attention, but inform yourself before writing incomplete and false arguments in context.
You only have to look at Amir's reviews to understand the differences in measurements between an unbalanced (RCA) and a balanced (XLR) input.
My 'false TRS' argument must have been misinterpreted:
I mean that AIYIMA should specify that its sockets are present for more 'compatibility' with other devices but that they do not offer the advantages of this type of link when its internal links are really in 'symmetrical 'mode' since internally it is necessarily used an OPAMP 'desymmetrizer' allowing to use the digital volume control chip NJW1194 which does NOT work in symmetrical mode.
Regards.
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Except that these are balanced inputs, not unbalanced inputs. I would have expected you know what that means and how balanced inputs are not necessarily tied to symmetrical processing.
Not a matter of compatibility. Balanced inputs and outputs exist to support symmetrical shielded cables. This is the case here.
What would be the difference? Can you explain the superiority of the 9039Q2M in more detail, please?
Not really. TPA3255/51 are completely differential amplifiers. In fact the RCA inputs are converted to differential by the second stage on each opamp. You could feed differential inputs directly into the amp and completely bypass the opamps. These Opamps are there to generate a slight gain on the first stage and the output from this first stage feeds the second stage to create an inverted signal from left and right inputs to feed the amp.
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