TDA7492P Bluetooth Amplifiers: Comparing 25Wx2 vs 50Wx2, Jack Inclusion, and Amp Board Quality

Hello, I would like to buy an amplifier, one of two, I don't know which one to choose?
I see that one has a jack and the other does not and one has 25w x2 and the other has 50w x2. Is this a marketing trick or not?
Help
https://pl.aliexpress.com/item/TDA7492P-50W-5...-Component-High-quality/32610322097.html?spm= 2114.010208.3.1.z3vgTF & ws_ab_test = searchweb0_0, searchweb201602_3_10000560_10000606_10000561_10000073_10000074_10000608_10000709_10000660_10000704_10000703_10000175_10000509_10000507_10000505_10000558_10136_10000068_10000552_10000369_10000063_10000365_10000367_10099_10000663_10000665_10096_10000669_10000569_10000097_10000094_10000337_10000723_10000090_10000147_10000091_10000726_10000144_10000339_10000150_10000679_10084_10000678_10083_10000676_10080_10000153_10082_10000673_10081_10110_10111_10112_10113_10000535_10114_10000534_10000089_10000086_10000710_10000083_10000349_10000690_10000135_10000716_10000080_10000693_10078_10079_10000717_10000688_10073_10000684_10000140_10070_10122_10123_10126_10124_10000546_10065_10068_10000132_10000033_10000030_10000026_10000126_10000023_10000129_10000123_10000696_10060_10062_10000699_10056_10055_10 054_10000632_302_301_10059_10000120_10000020_10000013_10000117_10103_10102_10000016_10000114_10000111_10052_10053_10107_10050_10106_10051_10000621_10000384_10000629_10000101_10000100_10000576_10000579_10000104_10000045_10000578_10000375_10000108_10000377_10000612_10000390_10000613_10033_10000042_10000592_10000594_10000039_10000587_10000036_10000389_10000187-10033, searchweb201603_9, afswitch_1, ppcSwitch_5, single_sort_0_total_tranpro_desc & btsid = 1df5d594-b426-446f-bda2-221f4809770d & algo_expid = 6649f94d-d4ba-4cb4-a127-59a4f4ea04d6-0 & algo_pvid = 6649f94d-d4ba-4cb4-a127-59a4f4ea04d6
whether
https://pl.aliexpress.com/item/Wireless-Bluet...hipping/32673979250.html?spm=2114.010208.3.19. 1DzWkj & ws_ab_test = searchweb0_0, searchweb201602_3_10000560_10000606_10000561_10000073_10000074_10000608_10000709_10000660_10000704_10000703_10000175_10000509_10000507_10000505_10000558_10136_10000068_10000552_10000369_10000063_10000365_10000367_10099_10000663_10000665_10096_10000669_10000569_10000097_10000094_10000337_10000723_10000090_10000147_10000091_10000726_10000144_10000339_10000150_10000679_10084_10000678_10083_10000676_10080_10000153_10082_10000673_10081_10110_10111_10112_10113_10000535_10114_10000534_10000089_10000086_10000710_10000083_10000349_10000690_10000135_10000716_10000080_10000693_10078_10079_10000717_10000688_10073_10000684_10000140_10070_10122_10123_10126_10124_10000546_10065_10068_10000132_10000033_10000030_10000026_10000126_10000023_10000129_10000123_10000696_10060_10062_10000699_10056_10055_10054_10000632_ 302_301_10059_10000120_10000020_10000013_10000117_10103_10102_10000016_10000114_10000111_10052_10053_10107_10050_10106_10051_10000621_10000384_10000629_10000101_10000100_10000576_10000579_10000104_10000045_10000578_10000375_10000108_10000377_10000612_10000390_10000613_10033_10000042_10000592_10000594_10000039_10000587_10000036_10000389_10000187, searchweb201603_9, afswitch_1, ppcSwitch_5, single_sort_0_total_tranpro_desc & btsid = 1df5d594-b426-446f-bda2-221f4809770d & algo_expid = 6649f94d-d4ba-4cb4-a127-59a4f4ea04d6-2 & algo_pvid = 6649f94d-d4ba-4cb4-a127-59a4f4ea04d6

Added after 1 [minutes]:

if I did not write in this section, please transfer

The TDA7492 system has 2x50W power and the TDA7492P 2x25W. If you trust the photos and descriptions, then both boards have TDA7492P, i.e. the one with less power.

Documentation of the TDA 7492P:
http://www.st.com/content/ccc/resource/techni...0/6f/CD00211320.pdf/files/CD00211320.pdf/jcr: content / translations / en.CD00211320.pdf

Documentation of TDA7492:
http://www.st.com/content/ccc/resource/techni...f/8d/CD00205863.pdf/files/CD00205863.pdf/jcr: content / translations / en.CD00205863.pdf

but one has a jack and the other doesn't

Jack can be here a headphone output or additional input, in my opinion it is rather a headphone output here, but I can't cut my head.

This jack is an input

This jack is a Bluetooth line out.

Can I give the TDA7492P board from BT, give power from the laptop adapter (19V and 9A). Like 24V power supply, but somewhere I heard that when connecting 4OHM speakers (and unfortunately I have such), the voltage should be reduced . I ask because I do not want to burn the amplifier (I gave PLN 38 xD). I am asking for some info

Follow the system manufacturer's instructions. In order not to damage the keying transistors at a lower load impedance, the supply voltage must be reduced. Look at the catalog note, the parameters will be given there.

Good day.

Yesterday I bought several amplifiers from 2x10W (PAM8610) through 2x15W (TDA7297 and TPA3110) to 2x25W (TDA7292) and 2x50W (TPA3116). I bought it explaining that I would experiment and use it somehow, and honestly I overfished a little.
Well, to the point.
1. This thread has TDA7492P and some information:
I do not agree that "Chinese" must be poured and entrusted to catalog cards. And "Chinese" and cards must be taken with common sense. "Chinese" may have "something hidden" in the module which modifies the final parameters of the module, and the catalog cards to which we have access are also: - incomplete, - simplified and - have errors.
Errors, please:
TDA7492P for the conditions on the card: Ucc = 20V, Rl = 8 ohm in the Table has given at PHD = 10%, Po = 25W. And despite the fact that this is nonsense because although mathematically it will come out 25W when we assume the output signal amplitude equal to Ucc (20V), in practice, who would hear Um = Ucc. Um = Ucc-1V is already overhauled, but yes, by force, it can be assumed. In this case, 22.5625W will come out, not 25W.
Let's take a look at the "same place" TDA7492. For the conditions Ucc = 25V, Rl = 8 ohm in the Table is given at PHD = 10%, Po = 50W. It's probably a perpetual motion device. The easiest way, Po = Usk ^ 2 / Rl. Let us remind you that Usk = Um / sqrt (2) (considering sine wave or not, - let's quit). So even assuming Um = Ucc (as above) we have:
Po = (UCC / sqrt (2)) ^ 2 / R = (25 / sqrt (2)) ^ 2/8 = 525/2/8 = 39,0625W. So where 50W given in the catalog card.

2. Regarding this jack, I doubt if it is a bluetooth output.
When buying this amplifier I looked at it and found that it was on the Soldermask Line In. Is this the second input for the signal? - Analog input. Looking through dozens of amplifiers in a similar one (bluetooth and jack) I found information that when an analog signal comes in (a signal comes in or a jack is inserted - I don't remember), the internal automation turns off bluetooth. - In fact, adding an analog input is four capacitors and "wsio". I'm certainly simplifying, but ...
Am I wrong in this?

3. As it was above TDA7492P and TDA7492 are identical systems only selected in the factory as better and worse and the letter P (I know that I simplified). In this situation, if I buy TDA7492 I cut TDA7492P and beautifully desolder the legs, and then solder the TDA7492, I will do stupid? Will I not make 2x50W from this 2x25W amplifier? - I do not think that increasing the Ucc to about 28V could harm some passive components (e.g. capacitors), and at the same time other integrated circuits are probably not "voltage-matched" to the "millimeter". Admittedly, how simple it is, and "Chinese" should also "come up with it" - and I haven't found it. - Maybe I was blind.
Where am i wrong What i forgot

4. In a very similar TPA3116 amplifier (bluetooth, USB, SD card reader, remote control) there is no analog input. After searching the INAP, INAN, INBP and INBN legs carefully, can I solder 1uF to them and input with an analog signal. Maybe someone has already tried it? Or is it stupid?

I will be grateful for your comments.

Greetings.
Leszek_n