Why you show a function and not send to us the program? I was serching for this compressor and not faund it in the functions tree.... Please, put here a link with the function. Thanks! Jab5.
Hi, Thank you so much for the video, it is very very useful ! I have a question about limitating the output power. In your example you take a 2 ohms speaker that handles 50W. The amp gain is given in the specsheet @2 ohm and the Input Sensitivity is also given @2 ohm. In your specific case I understand your calculation. But I have purchased the Wondom JAB5 that you sell and in the specsheet that you give, the amp gain is given @6 ohm, the input sensitivity @4 ohm and in my case I want to limit the total output power (for the 2 output I am using) to 92W (I want to limit the power taken from the battery to avoid going into overdischarge protection) and my speakers are 8 ohms speakers. How do I do the calculation you shared if I don't have the specifications of the amp for a 8 ohm load ? Using your datas, my calculation is the following : G = 20*log(sqr(92*8)/0.770) = 30.94dB. Amp gain being 26dB, this means that my dynamic compression can go higher than 0dB (26-30.94 = -4.94) so I should put the gain value to 4.94dB ? It would be great if you could answer my question, I am very worried to do something wrong and destroy the battery/amp !! Thank you so much in advance !!🙏
Hello, thank you for your watching and kind comment. According to the description, we assume that you want to limit the output power of each channel to 46W into an 8Ohm speaker. In this condition, the output signal voltage required is around 19.18Vrms. As the input sensitivity of the JAB5 is 0.775mV (4x100W@6Ohm, total gain 30dB), the actual amplification is 24.74, so the gain level you need is 27.87dB (20lg24.74). Therefore, the attenuation is about 2.15dB. You can set the gain level to approximately -2.5dB. Wish this could help you. Have a fantastic day~
Hi ! Sorry but I redid the calculation and with the given datas I get the need for 27.87dB gain level. But If I do 24.74dB (amp gain) - 27.87dB = -3.13dB. I don't understand from where the 2.15dB value comes from... Very sorry to bother you again, but it would help me if you could explain it ! 2nd question : when I set the gain level to -2.5dB, do I put it in one compression block just after the input signal (for the all schematic that will come after), or do I put the compression blocks at the complete end, just before sending the signals to DAC0 and DAC2 with the -2.5dB gain level value in each block ? Thank you so much in advance for your answer ! 🙏 Have a nice day
Hello, for the first question, the total gain level 30dB is composed of amp gain and filter gain. For the second question, it's suggested to put the compression block after signal processing part and right before sending the signals to DAC output. Wish this could help you. Have a fantastic day~
If you market the amplifiers as car audio amplifiers as well. Why is the input sensitivity so high accepting less than 1v rms when the average car head unit or audio source is between 2-4v rms? Do you plan on releasing a series of amplifiers that accept higher input voltage? I'm assuming the the amplifiers you sell with rca inputs on board have a higher input voltage level, as I have not checked yet.
I turned this graph without understanding what depended on what, I just wanted to raise the volume, but don’t change this graph, the sound changes, then low frequencies are added but the overall volume level drops.. Damn. I seem to understand that 0 is 0, and -110 is -110, but when you move the point in the middle of the graph, strange things begin to happen*
can i use external potentio meter to controll compressor, like pot Threshold,? please answer🙏
Hello, the standard product cannot achieve the function you want. Have a fantastic day~
Llevo un dia intentando eso, logre solo poner el indicador cuando trabaja el limitador
Why you show a function and not send to us the program? I was serching for this compressor and not faund it in the functions tree.... Please, put here a link with the function. Thanks! Jab5.
Maybe it is this
ua-cam.com/video/-vQsGYfodEI/v-deo.html
Dynamic Processors/RMS/Standard Resolution/Standard RMS or Standard Independent RMS
@@verchromter our hero
Hi, Thank you so much for the video, it is very very useful ! I have a question about limitating the output power. In your example you take a 2 ohms speaker that handles 50W. The amp gain is given in the specsheet @2 ohm and the Input Sensitivity is also given @2 ohm. In your specific case I understand your calculation. But I have purchased the Wondom JAB5 that you sell and in the specsheet that you give, the amp gain is given @6 ohm, the input sensitivity @4 ohm and in my case I want to limit the total output power (for the 2 output I am using) to 92W (I want to limit the power taken from the battery to avoid going into overdischarge protection) and my speakers are 8 ohms speakers. How do I do the calculation you shared if I don't have the specifications of the amp for a 8 ohm load ? Using your datas, my calculation is the following : G = 20*log(sqr(92*8)/0.770) = 30.94dB. Amp gain being 26dB, this means that my dynamic compression can go higher than 0dB (26-30.94 = -4.94) so I should put the gain value to 4.94dB ?
It would be great if you could answer my question, I am very worried to do something wrong and destroy the battery/amp !! Thank you so much in advance !!🙏
Hello, thank you for your watching and kind comment. According to the description, we assume that you want to limit the output power of each channel to 46W into an 8Ohm speaker. In this condition, the output signal voltage required is around 19.18Vrms. As the input sensitivity of the JAB5 is 0.775mV (4x100W@6Ohm, total gain 30dB), the actual amplification is 24.74, so the gain level you need is 27.87dB (20lg24.74). Therefore, the attenuation is about 2.15dB. You can set the gain level to approximately -2.5dB. Wish this could help you. Have a fantastic day~
Thank you SOOO much for your quick and precise answer!!! Have a nice day !
Hi ! Sorry but I redid the calculation and with the given datas I get the need for 27.87dB gain level. But If I do 24.74dB (amp gain) - 27.87dB = -3.13dB. I don't understand from where the 2.15dB value comes from... Very sorry to bother you again, but it would help me if you could explain it !
2nd question : when I set the gain level to -2.5dB, do I put it in one compression block just after the input signal (for the all schematic that will come after), or do I put the compression blocks at the complete end, just before sending the signals to DAC0 and DAC2 with the -2.5dB gain level value in each block ?
Thank you so much in advance for your answer ! 🙏 Have a nice day
Hello, for the first question, the total gain level 30dB is composed of amp gain and filter gain. For the second question, it's suggested to put the compression block after signal processing part and right before sending the signals to DAC output. Wish this could help you. Have a fantastic day~
very detailed and understandable video, exactly what i needed !
Glad you liked it! Have a fantastic day~
If you market the amplifiers as car audio amplifiers as well. Why is the input sensitivity so high accepting less than 1v rms when the average car head unit or audio source is between 2-4v rms? Do you plan on releasing a series of amplifiers that accept higher input voltage? I'm assuming the the amplifiers you sell with rca inputs on board have a higher input voltage level, as I have not checked yet.
Ridiculously useful video 👍
Glad it was helpful!😁
Except the music is annoying distracting.
Tks, this was very interesting.
Do you could also make an video for multiroom use fot your amplifiers via wifi?
Exactly what i want
Very good and interesting.
Very well explained
I turned this graph without understanding what depended on what, I just wanted to raise the volume, but don’t change this graph, the sound changes, then low frequencies are added but the overall volume level drops.. Damn. I seem to understand that 0 is 0, and -110 is -110, but when you move the point in the middle of the graph, strange things begin to happen*