Yes, HDMI is CEC compatible.
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NEW O-NOORUS D4 (TPA3255 PFFB / HDMI ARC / ES9023P)
Wow awesome! So it's possible to power on the amp and change the volume using the TV remote control?
The ARC volume can be adjusted via the TV remote control, but the D4 cannot be turned on or off.
How?
I see flag on volume trigger and it says what he have min/max position and can not be change anywhere else
This requires understanding TV HDMI ARC, D4 supports CEC, increase the volume in the PCM audio stream. Then decode it through the DAC, although the position of the potentiometer remains unchanged. The final volume is increased
livinon2wheels
Active Member
- Joined
- May 3, 2024
- Messages
- 114
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- 68
The hi-pass filter needs to be switchable. There are plenty of us that run the front speakers in the HT in full-range mode because we prefer to do it that way. Why in the world would anyone pay good money for full-range speakers and then intentionally take away useful bottom end support by imposing an always on hi-pass filter?
HPF being switchable would definitely be nice!
The new Douk audio A5 has most of the dream features that many of us wanted in a budget amp: PFFB and USABLE HPF range!
EDIT: Has SWITCHABLE HPF!
EDIT: I found the announcement thread on the A5 from Sept 2024 in the dealer section, great to see the HPF range went from 60Hz-6KHz to 30Hz-200Hz!
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On sale March 5
ICIETDIYEUR
Senior Member
Hi Alexander 
Will you send me one ?
Bye
Will you send me one ?
Bye
Never think about it.
Just buy one.
And it is a really peace of crap.
Bluetooth? Connecting but no sound - useless
Hdmi? Bad sound with noises - useless
Line in ? Bad sound with noises - useless
Idle mode? Noises
So many problems in one device? Really?
Better can send me a stone- no time lost on testing.
Writing to seller (o-noorus off store) and they answer is bring me a part of money.
Part of my money and peace of crap? Perfect deal.
Thing does not work, just making terrible noises.
I send it where they say and get no moneyback
Just punks, what think only about 100$ in their hands and have no idea about clients satisfaction.
I think they are bad people.
Bad people can not make good amplifiers.
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AliExpress processing is not that fast, please be patient.
ICIETDIYEUR
Senior Member
Hello.
Are there other people who have encountered the same type of problem as meta1984 ?
Apparently this unit seems to be failing, this can happen even to brands such as TOPPING (I have already personally encountered the case with a PA5II that was replaced quickly).
However:
- during the first video, we have no reference of the source used (make, model, features,...).
We can clearly hear a fault on the amplifier's input !
The OPAMPS may have 'moved' from their DIP8 base during a somewhat 'rough' transport, which could explain this
We don't know if the source used was tried on another device and works properly, but we imagine that it is...
-during the second video, we hear interference very clearly in the background while the amplifier is turned off: where does it come from then ?
It is also noted that no input is connected to the device.
The amplifier is placed directly on the speaker (this is not done) and this entry-level model of SONY 'mini-system' should not see any shielding of its speakers, we can imagine how the internal components of the amplifier's power circuit react
In addition, a long length of cable for the loudspeaker is arranged coiled just close to the loudspeaker and the amplifier: this forms a superb antenna for receiving the high frequencies produced by the switching power supply that must not be far from it !
In short, we are very far from what is normally recommended for the use in good conditions of any hi-fi device...
It's a shame that I'm not near you because I would have been happy to come to 'clarify' this undeniable dysfunction.
Kind regards.
Are there other people who have encountered the same type of problem as meta1984 ?
Apparently this unit seems to be failing, this can happen even to brands such as TOPPING (I have already personally encountered the case with a PA5II that was replaced quickly).
However:
- during the first video, we have no reference of the source used (make, model, features,...).
We can clearly hear a fault on the amplifier's input !
The OPAMPS may have 'moved' from their DIP8 base during a somewhat 'rough' transport, which could explain this
We don't know if the source used was tried on another device and works properly, but we imagine that it is...
-during the second video, we hear interference very clearly in the background while the amplifier is turned off: where does it come from then ?
It is also noted that no input is connected to the device.
The amplifier is placed directly on the speaker (this is not done) and this entry-level model of SONY 'mini-system' should not see any shielding of its speakers, we can imagine how the internal components of the amplifier's power circuit react
In addition, a long length of cable for the loudspeaker is arranged coiled just close to the loudspeaker and the amplifier: this forms a superb antenna for receiving the high frequencies produced by the switching power supply that must not be far from it !
In short, we are very far from what is normally recommended for the use in good conditions of any hi-fi device...
It's a shame that I'm not near you because I would have been happy to come to 'clarify' this undeniable dysfunction.
Kind regards.
Hello.
Are there other people who have encountered the same type of problem as meta1984 ?
Apparently this unit seems to be failing, this can happen even to brands such as TOPPING (I have already personally encountered the case with a PA5II that was replaced quickly).
However:
- during the first video, we have no reference of the source used (make, model, features,...).
We can clearly hear a fault on the amplifier's input !
The OPAMPS may have 'moved' from their DIP8 base during a somewhat 'rough' transport, which could explain this
We don't know if the source used was tried on another device and works properly, but we imagine that it is...
-during the second video, we hear interference very clearly in the background while the amplifier is turned off: where does it come from then ?
It is also noted that no input is connected to the device.
The amplifier is placed directly on the speaker (this is not done) and this entry-level model of SONY 'mini-system' should not see any shielding of its speakers, we can imagine how the internal components of the amplifier's power circuit react
In addition, a long length of cable for the loudspeaker is arranged coiled just close to the loudspeaker and the amplifier: this forms a superb antenna for receiving the high frequencies produced by the switching power supply that must not be far from it !
In short, we are very far from what is normally recommended for the use in good conditions of any hi-fi device...
It's a shame that I'm not near you because I would have been happy to come to 'clarify' this undeniable dysfunction.
Kind regards.
Good try to wash their hands.
It is a freeze on second video. You have not hear anything new after i plug it on ?
Placing on speaker is because they answer on my another video what it is my false and they can not see how it plugged. I get edifier active speakers 2080 db and mr4 and place mos compactly to show all inputs and outputs. Because they rejected my request to return this.
On ali ONLY 3 sells and 2 reviews, one of them with "problems".
All your words about position and cables is "bla-bla". It is just little test area for showing all picter in short video what can be uploaded on aliexpress.
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ICIETDIYEUR
Senior Member
Good evening.
What do you mean by 'trying to wash your hands' ?
For your information, I have nothing to do with the O-NOORUS company, I am just a customer, like you, who bought them another model (the O-NOORUS D1) with which I have never encountered a problem of any kind.
I even posted a 'MOD' here that makes it still perform well even though it is already very good from the start.
I'm just trying to understand what could have happened to you with your amplifier but if it bothers you then I won't intervene anymore...
Good evening to you.
What do you mean by 'trying to wash your hands' ?
For your information, I have nothing to do with the O-NOORUS company, I am just a customer, like you, who bought them another model (the O-NOORUS D1) with which I have never encountered a problem of any kind.
I even posted a 'MOD' here that makes it still perform well even though it is already very good from the start.
I'm just trying to understand what could have happened to you with your amplifier but if it bothers you then I won't intervene anymore...
Good evening to you.
You starting from my cables, speakers and everything what "i doing wrong" when i just try to show what device is broken in superposition where all peaces in picture and every components are simplest. Help for what? I send it back to seller. I hope they are know how to fix it and sell to another lucky guy.
ICIETDIYEUR
Senior Member
I just notice that you use an ironic and especially inappropriate tone by writing in your posts that the devices from O-NOORUS are bad and that you should not buy from them.
It is not appropriate to make a 'generalization' of a particular case: where would we go if we all had this kind of 'reasoning' ?
I'll just let you think about that...
NB: as a child, you may have made mistakes, but that doesn't make you a definitively 'bad' person, don't you think ?
It is not appropriate to make a 'generalization' of a particular case: where would we go if we all had this kind of 'reasoning' ?
I'll just let you think about that...
NB: as a child, you may have made mistakes, but that doesn't make you a definitively 'bad' person, don't you think ?
FanatNsk
Member
- Joined
- Sep 6, 2024
- Messages
- 45
- Likes
- 28
My review of the amplifier O-noorus D4 PFFB
Received a parcel from @meta1984
Within 30 minutes, using simple tools, I fixed the problem with the noise in the speakers. The problem was in the incorrect assembly of the cooling system, the capacitor legs were close to the radiator plate, I shortened them with nippers and everything worked.
Then I made several changes:
1. Replaced the operational amplifiers. Instead of opa1642a, I installed NE5532, this reduced the noise level and increased the SINAD to 90.3 dB
2. Changed 4 capacitors around the operational amplifiers, instead of 200pF, I installed 100pF, this made the frequency response almost straight.
Sine Wave 1kHz SINAD 90.3dB at load 4ohm 9W
Maximum power 63.5W at load 8ohm and THD 1%
RMAA measurement report
I recorded the sound of the amplifier via Bluetooth, a flash card, a coaxial port, I will publish a video review on YouTube a little later.
Received a parcel from @meta1984
Within 30 minutes, using simple tools, I fixed the problem with the noise in the speakers. The problem was in the incorrect assembly of the cooling system, the capacitor legs were close to the radiator plate, I shortened them with nippers and everything worked.
Then I made several changes:
1. Replaced the operational amplifiers. Instead of opa1642a, I installed NE5532, this reduced the noise level and increased the SINAD to 90.3 dB
2. Changed 4 capacitors around the operational amplifiers, instead of 200pF, I installed 100pF, this made the frequency response almost straight.
Sine Wave 1kHz SINAD 90.3dB at load 4ohm 9W
Maximum power 63.5W at load 8ohm and THD 1%
RMAA measurement report
I recorded the sound of the amplifier via Bluetooth, a flash card, a coaxial port, I will publish a video review on YouTube a little later.
ICIETDIYEUR
Senior Member
Hello FanatNsk.
Thank you for this video.
Everything seems to be working properly
You haven't told us what you think, surely you have plenty of comments to share ?.
Thank you for this video.
Everything seems to be working properly
You haven't told us what you think, surely you have plenty of comments to share ?.
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