But what about the price? LM4562NA two times cheaper than LME49720NA. If the same there is no reason to buy one that is more expensive
Through whom? And which package?
I get my stuff through Mouser mostly, and we're talking $3 for them both in SOIC and DIP. Think they're the same price looking up 49720 and 4562. I spend the big bucks on the 49860's though, (3.17 in singles and only SOIC) for that sweet wider voltage range.
I get my stuff through Mouser mostly, and we're talking $3 for them both in SOIC and DIP. Think they're the same price looking up 49720 and 4562. I spend the big bucks on the 49860's though, (3.17 in singles and only SOIC) for that sweet wider voltage range.
LME49720NA/NOPB | Texas Instruments | TI Store
LM4562NA/NOPB | Texas Instruments | TI Store
Both probably getting more expensive???
XE: USD / MYR Currency Chart. US Dollar to Malaysian Ringgit Rates
LM4562NA/NOPB | Texas Instruments | TI Store
Both probably getting more expensive???
XE: USD / MYR Currency Chart. US Dollar to Malaysian Ringgit Rates
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hm... in my local store I guess original (not fake) DIP-8:
LM4562NA $3
LME49720NA $5.5
Looks like it is local shop issue of price 🙂
LM4562NA $3
LME49720NA $5.5
Looks like it is local shop issue of price 🙂
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- hello! IMO- it's not worth to worry! I have Yamaha A-S300, that costs apr. Eur 300 ... But that's sound make me cry ... 😡
Eur 75,00 TPA3255 plate from Audiophonics not comparable much- much better than...
Hi AleksandrsB,
The Audiophonics board looks nice but does it have a POP sound when turned ON/OFF?
Is it silent when no music is playing or does it have some kind of hum?
That's the same as the aliexpress ~40 € board (without 3.3V regulator, but blue board).
I bought it and it worked OK for a week, then it started producing popping sounds (for 30s, a couple of pops a second) when powering it up, during which no audio could be played. Then it works ok.. except that now it also sometimes produces pops after being powered and used for a while.
There is no hum or hiss (when it's working properly)! I am using Meanwell LRS-350-48 to power it.
Because of these problems I ordered tpa3251 board from 3e-audio...
Hello, my nordish neighbor finnsam
!
== That's the same as the aliexpress ~40 € board ==
Yes, you are right in main ... But- not exact, and You, I hope, know- Who going into hiding in details ... ;-) !?
That similar boards go to sell in ali approx. Eur 50 ... plus 21% TAX ... plus Custom/postal fee ... It is not so cheap, as can see for a first look...
This board NOT almost perfect, but that do not have haotic pop's on stand-by ;-)
== That's the same as the aliexpress ~40 € board ==
Yes, you are right in main ... But- not exact, and You, I hope, know- Who going into hiding in details ... ;-) !?
That similar boards go to sell in ali approx. Eur 50 ... plus 21% TAX ... plus Custom/postal fee ... It is not so cheap, as can see for a first look...
This board NOT almost perfect, but that do not have haotic pop's on stand-by ;-)
Hello,
anybody here compared class A amp (tube or SS) and TPA3250 amp? Any impressions?
Thanks!
anybody here compared class A amp (tube or SS) and TPA3250 amp? Any impressions?
Thanks!
Huh... In my clos future program is Old School legendary JLH amp. launching (i'm already have a JLH- board) and direct comparing vs. TPA3255 and Irdamp 7 irs2092 to ...
Yes, I have both an F5 and the TPA3255 EV board.
The Class D is running with a linear supply at 53V and I changed the input capacitors.
F5 is built with quality parts and choke supply. Speakers are an easy load at 8 ohms and good SPL.
I was fighting against it, but I like the TPA more than the F5 right now.
F5 Pro-more HF-extension, slightly more natural in general maybe and maybe a little better in decay of notes.
TPA pro-everything else 😱 Much better bass control, midrange is clearer, stage is more structured and focused. When the F5 articulates very well, the Class D does even more of that. F5 appears to be a little blurred in comparison, which was surprising to me. Probably a result of the 150 W at 8 ohms.
And there is no listener fatigue, which I always encountered after a while with all class D or chip amps. It even swings and got the rhythm...and no harshness.
And it seems to be very revealing to the source, my 3 preamps never sounded that much different before.
For my ears I like it best with a good valve preamp, it seems to add a little pleasant distortion and some meat on the bones😛
If there is a weakness, then in HF extension and resolution, but this can well be the filter characteristics not matching with my 8 ohm speakers. Just not as fluid as I know it from other amps, a little damped, but hardly noticeable. Are there better amps? Of course! But not in my house right now.
But for the 80$ shipped this was a huge bargain; and my V-Fet amp is still waiting for its built.
Maybe this helps...
The Class D is running with a linear supply at 53V and I changed the input capacitors.
F5 is built with quality parts and choke supply. Speakers are an easy load at 8 ohms and good SPL.
I was fighting against it, but I like the TPA more than the F5 right now.
F5 Pro-more HF-extension, slightly more natural in general maybe and maybe a little better in decay of notes.
TPA pro-everything else 😱 Much better bass control, midrange is clearer, stage is more structured and focused. When the F5 articulates very well, the Class D does even more of that. F5 appears to be a little blurred in comparison, which was surprising to me. Probably a result of the 150 W at 8 ohms.
And there is no listener fatigue, which I always encountered after a while with all class D or chip amps. It even swings and got the rhythm...and no harshness.
And it seems to be very revealing to the source, my 3 preamps never sounded that much different before.
For my ears I like it best with a good valve preamp, it seems to add a little pleasant distortion and some meat on the bones😛
If there is a weakness, then in HF extension and resolution, but this can well be the filter characteristics not matching with my 8 ohm speakers. Just not as fluid as I know it from other amps, a little damped, but hardly noticeable. Are there better amps? Of course! But not in my house right now.
But for the 80$ shipped this was a huge bargain; and my V-Fet amp is still waiting for its built.
Maybe this helps...
Thanks! It helps.. 🙂 next project in sight.. never had a Class D amp, except at my bass combo, TC Electronic brand, but I did not like the sound of that specific combo.
Wonderful question!
Also has anyone compared good-implementation of Class AB (eg. TDA7294/TDA7265) to Class D TPA325x platform?
AleksandrsB, my quick guess Jogi is referring to FirstWatts Nelson Pass/Audio Express F5 Class A JFet amplifer
Thanks Forestsgump, yes, Pass F5; I thought everybody would know 😀
Of course my "review" is only valid in my environment, but it may give some kind of compass. Maybe with very efficient speakers (+96db) it will be different, but I am sure that the TPA will not be a disappointment, when there is no crappy source or speaker involved.
Of course my "review" is only valid in my environment, but it may give some kind of compass. Maybe with very efficient speakers (+96db) it will be different, but I am sure that the TPA will not be a disappointment, when there is no crappy source or speaker involved.