opamp ...burson V5i...
Hi
Here is the test of a very delicate op amp by burson audio. Charles -Ssaudio- provided in some posts a free sample….thats great!…so i try it.
Thank you Charles to make this possible!🙂
i am a listener with technical background since 30 years...some years very excessive some years just relaxed listening- but I always tried to compare. i normally hear about 10 hours in a normal week-so listening is a part of my life for switch off and recover....
Make it really sense to use a 69$ opamp in a Class D amp??....hmmm i never tried this kind of op amps. lets go this way and do some listing test on my TPA3116 dual chip. after 8 days "burn in"(some breaks were included) i start listening and to be honest i don not expecting any better result to the 49720 or 4562 at this amp. the level of this amp is compared to the TPA3250 FX502spro closed but not able to play better in kind of sound stage or details. hmmm...so the ranking of power chip TPA3116 under TPA3250 is as the development was....or not?
not!- the V5i is able to fight against the better power amp. yes! but one step after the other...
at the TPA3116 dual chip its easy because you need "just" one dual opamp to go for both channels in PBTL mode.....so its an advantage ;-)
at the tpa3116 the burson v5i is able to produce a ocean of details - but not focused on some micro details and loose the play together factor. this opamp is compared to the 49720 or 4562 an other higher level - if you start playing it is immediately stoic silent - ...hmmm. i thought that it was silent 😉 with this advantage the details get very neutral. what do i mean? the voices and instruments getting "real"
- e.g. if you hear a guitar its a pleasure to fall in this details of swing and harmonic what a guitar is able to produce. the high and bass are excellent too but the strongest side of this burson V5i is the midrange - this nano details of natural instruments and voices give me an extra smile to my ears. 🙂 female voices are great - i hang on their lips if i want to😀
Before i start to write this report i spend 2 weeks listening test overall i do not want to believe what happened here...... so i listen to all kinds of different music stiles and titles - with the burson v5i i did some extra hours with a real and neutral sound what my amp is now deliver....very nice..thank you!
i highly recommend this opamp! Thank you charles - great product !
chris
Hi
Here is the test of a very delicate op amp by burson audio. Charles -Ssaudio- provided in some posts a free sample….thats great!…so i try it.
Thank you Charles to make this possible!🙂
i am a listener with technical background since 30 years...some years very excessive some years just relaxed listening- but I always tried to compare. i normally hear about 10 hours in a normal week-so listening is a part of my life for switch off and recover....
Make it really sense to use a 69$ opamp in a Class D amp??....hmmm i never tried this kind of op amps. lets go this way and do some listing test on my TPA3116 dual chip. after 8 days "burn in"(some breaks were included) i start listening and to be honest i don not expecting any better result to the 49720 or 4562 at this amp. the level of this amp is compared to the TPA3250 FX502spro closed but not able to play better in kind of sound stage or details. hmmm...so the ranking of power chip TPA3116 under TPA3250 is as the development was....or not?
not!- the V5i is able to fight against the better power amp. yes! but one step after the other...
at the TPA3116 dual chip its easy because you need "just" one dual opamp to go for both channels in PBTL mode.....so its an advantage ;-)
at the tpa3116 the burson v5i is able to produce a ocean of details - but not focused on some micro details and loose the play together factor. this opamp is compared to the 49720 or 4562 an other higher level - if you start playing it is immediately stoic silent - ...hmmm. i thought that it was silent 😉 with this advantage the details get very neutral. what do i mean? the voices and instruments getting "real"
- e.g. if you hear a guitar its a pleasure to fall in this details of swing and harmonic what a guitar is able to produce. the high and bass are excellent too but the strongest side of this burson V5i is the midrange - this nano details of natural instruments and voices give me an extra smile to my ears. 🙂 female voices are great - i hang on their lips if i want to😀
Before i start to write this report i spend 2 weeks listening test overall i do not want to believe what happened here...... so i listen to all kinds of different music stiles and titles - with the burson v5i i did some extra hours with a real and neutral sound what my amp is now deliver....very nice..thank you!
i highly recommend this opamp! Thank you charles - great product !
chris
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Thats interesting. Could this be measured? I see very educated electronics engineers say that all opamps sound the same. If the difference is so clearly audible as you describe - and I believe you. Surely it can be measured when levelmatched and all measurements are done when both amp and measuring-equipment are warmed up. Could one even use speakerlevel to line adapters and make recordings for all to hear the difference?
Cheers Chermann!
Cheers Chermann!
Maybe someone is interested in the new Archimago's post:
Archimago's Musings: LISTENING: Fully battery-powered wireless streamer & amplifier system (Yeeco - TI TPA3116D2, TalentCell 12V battery)
Archimago's Musings: LISTENING: Fully battery-powered wireless streamer & amplifier system (Yeeco - TI TPA3116D2, TalentCell 12V battery)
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Hi Guerilla
its my personal impression and many of this forum want to see this in graph and measurements. ...to be honest me too !
sorry but actually i am not able to show you this.
i know that a good sound card and a software like Arta could do this. (i am too lazy to go ahead ...) ...so i have to accept that if somebody do not believe without measurement....that´s ok for me.....
additionally to this i have no friends in my area which can help me to do that .
chris
Thats a nice site. The high gain is probably to suit it to telephones.
I dont know when they released the amp, but in 2019 I cant believe someone would release a bluetooth device without Aptx-HD or equivalent high res format instead of using old aptx. Its nor mentioned so I dont know if they did
OK, at last I'm back at home, and I had a look at the Breeze Audio amp I had had the problems,
I don't know which are the output inductors values, but mine does not have any input IC, as apparently others do.
There was no grease at all between chip and heatsink, so maybe that was what caused the problem I had.
I don't know which are the output inductors values, but mine does not have any input IC, as apparently others do.
There was no grease at all between chip and heatsink, so maybe that was what caused the problem I had.
Attachments
What Breeze amp version is that with input IC? Mine does not have one, as my photo shows.
Hi
as written in the thread its the dual chip amp. at this file you can see the sense of the op amp.
https://www.diyaudio.com/forums/cla...tpa3116-2-0-100w-dual-chip-2.html#post5790490
chris
OK. Apparently there are two versions for the Breeze Audio amp, one having an IC input.
Is there a switching supply you would recommend?
The one I had bought with my Breezy Audio was a 19v 3.5Ah type, but now I found this one, with slightly higher voltage output.
24V 5A Power Supply Adapter Cable for YJ Amp TPA3116 25W*4 Class D Amplifier | eBay
What are you people using?
Is there a switching supply you would recommend?
The one I had bought with my Breezy Audio was a 19v 3.5Ah type, but now I found this one, with slightly higher voltage output.
24V 5A Power Supply Adapter Cable for YJ Amp TPA3116 25W*4 Class D Amplifier | eBay
What are you people using?
That power supply cannot deliver clean 28,5V. Yes, you can adjust the voltage to that value but it's not clean under load, you get a lot of noise and voltage sag. And it's not able to deliver 150W either because there's no air exchange possible in that enclosure. And I already told you the power cables to the amp are getting HF induction too. It looks like you've 'outsmarted' yourself there.
From a logical point of view I agree with ICG. You should not run such an SMPS without any air convection. Try to cool a small 15 watt soldering iron by blowing air at it, you will be surprised how much heat 10 watt are!
On the other side, I always look at these small, plastic covered laptop power supplies of my Dell´s, which put out up to 90 watt. They get warm under load, but somehow manage to get away with the 100% closed plasic cage. Their wattage is sure not Chinese trade lies.
With this Meanwell you probably will not run into trouble, as an amplifier, driven by a single 24 volt supply, probably will be a very easy load. Even with high listening levels, the current will probably stay under 1 amp for most of the time.
Many years ago I experimented with A/B amps that I connected to much too small transformers, but huge capacitors (technically I used two transformers with dual secondary´s in a configuration that delivered dual 35 volt, but only with 500mA, with 2x 20.000uF). I wanted to experience how it sounded when an amp run´s out of "juice". To my surprise these amp played very well, only heavy bass played real loud, gave some funny, choking sound, like turning the volume up and down. Maybe the amp was a soft clipping variaty...
Lesson learned, you can torture your neighbours, even with something like 2x5 watt´s.
To return to the beginning: I think a lot of people over estimate the power they have to put into a high efficent D-amp. While the capacitors near the chip take care of some really loud spikes in music, the SMPS has "a lot of time to fill up again". So the average load will be really low and so will the 10% loss.
On the other side, I always look at these small, plastic covered laptop power supplies of my Dell´s, which put out up to 90 watt. They get warm under load, but somehow manage to get away with the 100% closed plasic cage. Their wattage is sure not Chinese trade lies.
With this Meanwell you probably will not run into trouble, as an amplifier, driven by a single 24 volt supply, probably will be a very easy load. Even with high listening levels, the current will probably stay under 1 amp for most of the time.
Many years ago I experimented with A/B amps that I connected to much too small transformers, but huge capacitors (technically I used two transformers with dual secondary´s in a configuration that delivered dual 35 volt, but only with 500mA, with 2x 20.000uF). I wanted to experience how it sounded when an amp run´s out of "juice". To my surprise these amp played very well, only heavy bass played real loud, gave some funny, choking sound, like turning the volume up and down. Maybe the amp was a soft clipping variaty...
Lesson learned, you can torture your neighbours, even with something like 2x5 watt´s.
To return to the beginning: I think a lot of people over estimate the power they have to put into a high efficent D-amp. While the capacitors near the chip take care of some really loud spikes in music, the SMPS has "a lot of time to fill up again". So the average load will be really low and so will the 10% loss.
I did something long time ago
https://www.diyaudio.com/forums/class-d/309813-wrong-tpa3255-33.html#post5526721
https://www.diyaudio.com/forums/class-d/309813-wrong-tpa3255-36.html#post5531324
https://www.diyaudio.com/forums/class-d/315681-tpa3250-listening-47.html#post5416541
Yes you are right - this smps is just for home listening use. i do not need 150W at home and therefore the smps is not getting hot.
chris
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The Meanwell PS are good. However, they changed many of them over time, often haven't got a name change. And your test doesn't account for strong fluctuations.
And, if you don't need the power then there's no reason at all to crank the voltage up anyway. A lot of your problems probably disappear if you reduce the voltage and put amp and PS in one shielded enclosure.
And, if you don't need the power then there's no reason at all to crank the voltage up anyway. A lot of your problems probably disappear if you reduce the voltage and put amp and PS in one shielded enclosure.
Excuse me to ask, after all these comments about the Meanwell PS.
Which would be a recommended PS to use with the Breeze Audio amp then?
If possible something you can find on eBay.
Which would be a recommended PS to use with the Breeze Audio amp then?
If possible something you can find on eBay.
The MeanWell PS is perfectly fine, if you don't drive up the voltage and use a (SHORT) shielded power cable or use it in the same metal case. There are also other PS which are even cheaper and work perfectly too. If you are tight on the budget, this 24V/4-6A PS works fine, you should mount it in a shielded and vented case though.