It is a nice amp too, I own it see below )) Do the accounts:
$176 for the module
$70 for a clean PSU
$80 for a neat case
$25 for plugs / wires
$15 for drilling
Total : at the very least $386 including shipment
Checkout now :
JL ELectronics Sylph-D200 Amplifier Module Review | Audio Science Review (ASR) Forum
Topping PA5 Review (Amplifier) | Audio Science Review (ASR) Forum
Topping PA5
Jlester TPA3255
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Since it's only class D, I ordered 3E Audio for $ 120 🙂
This Jlester is nicely folded at your place 🙂 What are the layouts on the left side?
This Jlester is nicely folded at your place 🙂 What are the layouts on the left side?
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The left module is an AC Audio grade filter.
Checkout the 3E Audio now we are far away from the PA5 )
average amp TPA3255....
I'll let you guess what is the best price / performance ratio
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But the 3E has DSP and Bluetooth input
At 3E, they boast of better measurements. Maybe they improved something?
TPA3255 Bluetooth 5.0 z procesorem DSP zintegrowany zasilacz wszystko w jednym wzmacniacza HiFi|Amplifier| - AliExpress
At 3E, they boast of better measurements. Maybe they improved something?
TPA3255 Bluetooth 5.0 z procesorem DSP zintegrowany zasilacz wszystko w jednym wzmacniacza HiFi|Amplifier| - AliExpress
I guess if one just wanted to go fancy, or actually needed adjustable input gain, one could use XRKAudio's BTSB buffer for SE input conversion.
The incoming Allo TPA3255 shows an adjutsable gain in the prototype sample, I am pretty sure that Allo is going to be the best compromise with Balanced and unbalanced inputs )
Hi guys,
first of all sorry if this is a dumb question or has been answered before, I'm fairly new at piecing together stuff like this and I haven't visited the forum for a while :-/
I bought a 3E Audio TPA3255 1x400W board, also the 2x260W board, and the matching DSP board, thinking I could stick these together and use it with my Chromecast Audio.
(it's for an active 3-way speaker)
But before I even got started I found out that the Chromecast Audio outputs 2.0Vrms, and the 3E Audio DSP board is configured for 1.0Vrms input.. which I assume would lead to clipping when using the Chromecast Audio.
Now, I know the DSP board can be configured for 2.0Vrms by swapping a resistor to an 18.8kohm one, but it's not very clear to me *which* resistor on the board that is, and 3E Audio basically replies "rtfm". But their PDF only states that the input resistor should be swapped, it doesn't point out where I can actually *find* it on the board...
Any help here would be greatly appreciated!
first of all sorry if this is a dumb question or has been answered before, I'm fairly new at piecing together stuff like this and I haven't visited the forum for a while :-/
I bought a 3E Audio TPA3255 1x400W board, also the 2x260W board, and the matching DSP board, thinking I could stick these together and use it with my Chromecast Audio.
(it's for an active 3-way speaker)
But before I even got started I found out that the Chromecast Audio outputs 2.0Vrms, and the 3E Audio DSP board is configured for 1.0Vrms input.. which I assume would lead to clipping when using the Chromecast Audio.
Now, I know the DSP board can be configured for 2.0Vrms by swapping a resistor to an 18.8kohm one, but it's not very clear to me *which* resistor on the board that is, and 3E Audio basically replies "rtfm". But their PDF only states that the input resistor should be swapped, it doesn't point out where I can actually *find* it on the board...
Any help here would be greatly appreciated!
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It's the ADAU1701 that loosing the SINAD in 3e audios amp.
28-/56-bit, 50 MIPS digital audio processor
2 ADCs: SNR of 100 dB, THD + N of −83 dB
4 DACs: SNR of 104 dB, THD + N of −90 dB
With nanoDIGI that I run it's at least over 90 dB low counting with ADAU1466 digital all the way from computer.
Attachments
Hello everyone, hope you are doing well.
Preparing for the rest of my DIY adventures, I noticed a clear cosmetic difference on the NE5532P used on my TPA3255 3eAudio modules which were received at the same time.
Out of 3 modules, 2 are identical (see photo below), one of which was already used in a previous realization (here).
But on the 3rd module the Op-Amps are aesthetically different :
Would that imply that these are counterfeit? or is this a legitimate variation?
In either case, I would like to test Op-Amps other than the NE5532P. But I understood by reading a dedicated topic that the electrical/electronic implementation was dedicated to it and that compatibility with another Op-Amp was not guaranteed (can degrade the quality, induce distortions, etc.)
So, based on the previous pictures can we deduce a compatibility with for example an LM4562NA/NOPB?
Also, in order to determine the choice of Op-Amp, are there any usage limits depending on the voltage of the power supply chosen (36-38 V in my case but maybe 48V later) or then does the module limit the voltage automatically for the OP-Amp part?
Preparing for the rest of my DIY adventures, I noticed a clear cosmetic difference on the NE5532P used on my TPA3255 3eAudio modules which were received at the same time.
Out of 3 modules, 2 are identical (see photo below), one of which was already used in a previous realization (here).
But on the 3rd module the Op-Amps are aesthetically different :
Would that imply that these are counterfeit? or is this a legitimate variation?
In either case, I would like to test Op-Amps other than the NE5532P. But I understood by reading a dedicated topic that the electrical/electronic implementation was dedicated to it and that compatibility with another Op-Amp was not guaranteed (can degrade the quality, induce distortions, etc.)
So, based on the previous pictures can we deduce a compatibility with for example an LM4562NA/NOPB?
Also, in order to determine the choice of Op-Amp, are there any usage limits depending on the voltage of the power supply chosen (36-38 V in my case but maybe 48V later) or then does the module limit the voltage automatically for the OP-Amp part?
Of course, most certainly, I don't think otherwise and I am very happy with the amp already made. But that is not the question. I would first like to know if these are not fakes / clones and if I could possibly "have fun" replacing them with other things, just to see if I hear a difference or not, but trying to avoid doing anything stupid.
You can always have fun 🙂 I don't think it has any effect on the sound. Your NEs look original,
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Okay, thanks bendix.
If someone else can possibly confirm the authenticity of the NE5532Ps and direct me towards an Op-Amp which would be a priori compatible with the electronic configuration of the module. I see a lot of people just replacing the op-amp with another model regardless of what's going on around it, although in the end you don't really know which way to turn.
If someone else can possibly confirm the authenticity of the NE5532Ps and direct me towards an Op-Amp which would be a priori compatible with the electronic configuration of the module. I see a lot of people just replacing the op-amp with another model regardless of what's going on around it, although in the end you don't really know which way to turn.
If you are worried about the 5532's just buy new ones. They are $0.80 to $2 each depending on type. Then you can sleep at night. If you have some old hifi gear in the junk box there might be a few inside.
Worth reading for some perspective on opamps
https://nwavguy.blogspot.com/2011/08/op-amps-myths-facts.html
https://nwavguy.blogspot.com/2011/08/op-amps-myths-facts.html
Thanks Chris, I had read something similar before and had no particular illusions about changing the Op-Amps. It's just that, not knowing much about electronics, when I realized that there were aesthetic differences at the level of the NE5532p of my modules (although received at the same time), I had a doubts about their authenticity. I imagine it is likely, during the time these chips have been around, that they have had to change the "encapsulation" several times for one reason or another. In short : there is no drama here !
8Mhz band low noise OPA2134 by Burr Brown
they once boasted that they are tuned with a laser
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