If I compare my reference record Diana Krall with all my amps.
TDA3118D2
Tripath TA2020
Tripath TA3020
The TA3020 wins, much better in the highs, better dynamic.
But it cost ten times moore.
On a budget think,TPA3118D2 wins.
But dont think this is nirvana for a penny.
It just good low budget.
Step up and you hear the difference.
There are no free lunch, even if its getting cheaper.
🙂
@solve, that is a good (ish) answer. I also happen to own a tp2020 amp, and find your claims correct - better highs and "resolution", I only might have a problem of not owning a pair of really efficient speakers, so the poor little amp lacks bass... Must get myself some fostex speakers or throw the topping in the bin.
Poslano z mojega LG-D855 z uporabo Tapatalk
Poslano z mojega LG-D855 z uporabo Tapatalk
I know the TABAQ's principle and theory but I have never read the thread... What do you suggest? A particular cheap and efficient driver or something?
Poslano z mojega LG-D855 z uporabo Tapatalk
Poslano z mojega LG-D855 z uporabo Tapatalk
These little amps work good if the outputfilter values are close to what is ok for your speakerload. Feedback is taken befor the outputfilter, same for 3118/ta2020. Now look at TA3020, post-outputfilter feedback is included, outputfilter behavior caused by speakerload is corrected. The ta3020 amp is more an amp you could connect to any speaker of choice, more like most hifi amps.
Just to clarify, do you mean the 3020 chip has a feature built-in to allow for post-filter feedback to be implemented?
Behavior with 8 ohm resistor is in YouTube clip I posted in 3116 thread the other day, 96khz dac? Your Tabaq isn't a resistor, with zobel it would be around 12 ohm, without zobel 24 ohm, both will cause bigger problems than 8 ohm resistor.
(3020 has multiple feedback and I think I read connexelectronics comments too quickly, they only say comparable to postfilter feedback, so it is prefilter, but at higher cutoff frequency)
So what speaker fits to TPA3118D2 then?
By the way,its not TABAQ I compared all amps.
Its Tangband W8-2145 in closed 27l boxes for try out.
And the only amp that i sing in it is TA3020.
Even TA2020 dont sound good, but my TABAQ W4-1320 sings in that.
Wich have 8ohm 88 db sensivity.
OK. That's what I thought. As far as I know (someone correct me if I am wrong), only Ncores have post-filter feedback designed-in.
Being happy with the SMSL 3118 amp for low power needs in the study I thought I's have a look at the Sanwu boards to maybe make some monoblocks, possibly to attach to the back of the speakers I'm using. I was looking for some compact power supplies and came across these - apologies if they've been mentioned before but if not I thought they might be of interest.
IRM-30-15ST: SNT Modul, 30 W, 15 V, 2 A, Schraub bei reichelt elektronik
IRM-30-15ST: SNT Modul, 30 W, 15 V, 2 A, Schraub bei reichelt elektronik
Those are real cute looking supplies. I have never seen them before but they do look perfectly adequate for speakers for the Study. I use 12v 1amp supplies and those are quite loud for a study. They are the wall warts used for external HDD's that go for $8.
Another option I have not tried which resemble your open frame units are these LED SMPS.
http://www.amazon.com/gp/aw/d/B00V5ZI5RO/
http://www.amazon.com/gp/aw/d/B00T5OJN6E/
Your supply being 15v is nice upgrade from 12v.
Yes, I thought they looked pretty cute! I'll let you know how I get on once they arrive and I've set them up.
Four times more relevant output power was really surprising. Indeed I had expected a shift in parameters, but not quite that much. I had not expected such effectiveness for the price of a standard diode and a big cap, but I was pleased.
Since I'm not too familiar with Class D, then next on my list is exploring what effectiveness may be had at the output filters.
Last on my list is deploying my BlareBuster circuit to adjust the input impedance for a more favorable signal. That has to be last! It is a wonderful input mod, but it will work so much better if I don't have to abuse it for what should have been done at some other locale.
So far this amp has a lot of promise and has responded to my requests; however, there is more to be done before I can identify the extent of what it is able for. That's rather good! Evidently, I didn't quit it yet--It certainly isn't a bad amplifier; but, let's ask it to do better and see what happens...
P.S. This thing is in head to head competition against a TDA8932 set to SE mode; and, despite the difference in output power and dynamics capacity, I do still have questions. The TPA3118-PBTL does have that bigger scale lifelike dynamics; however, it fails to compete otherwise. I really want it to do the job, because I do need the power. A nice enclosure is awaiting the winner.
Can you post a schematic. I don't quite follow your description and photo.
Bass is one thing the 3118 PBTL can use more of. It loses to a class AB like the Dx in the bass department.
That's so surprising! It has plentiful bass power. Really a lot! All else is a bit too loud so that it is harder to hear its excellent bass. Indeed the TPA31118's sonic signature is both loud and distracting, but it is not unattractive. I do have a need of suppressing that extra so that I can hear the bass, especially the bari. Still working on it... The bad news that I'm not sure if it is doable, and the good news is that I haven't found out yet. It certainly won't be possible to remove the error entirely, so the question is if it can be reduced to a practical extent. And, I just don't know that.
Last edited:
Hi all love this site, Lots of good info
So i,ve been putting a circuit board together but having problems with interference to my DAB radio in same box, here is a pic off pcb if u can see a problem please comment
The circuit is to IT spec sheet
Thanks !
So i,ve been putting a circuit board together but having problems with interference to my DAB radio in same box, here is a pic off pcb if u can see a problem please comment
The circuit is to IT spec sheet
Thanks !