Hi! also with my problem with edifier s730, based on 4x TDA7294 and 6xNE5532
my problem is that i want to change output frequency for my satelits, now is cutted to aprox.=150hz, i want it on 80-100hz to get more bass, i changed speakers for satelits but i need them to get i little bit lower
can someone help me? what capacitor i need to change?
link to NE5532 datasheet https://www.alldatasheet.com/datasheet-pdf/pdf/17968/PHILIPS/NE5532.html
TDA7294 https://www.alldatasheet.com/datasheet-pdf/pdf/25103/STMICROELECTRONICS/TDA7294.html
my problem is that i want to change output frequency for my satelits, now is cutted to aprox.=150hz, i want it on 80-100hz to get more bass, i changed speakers for satelits but i need them to get i little bit lower
can someone help me? what capacitor i need to change?
link to NE5532 datasheet https://www.alldatasheet.com/datasheet-pdf/pdf/17968/PHILIPS/NE5532.html
TDA7294 https://www.alldatasheet.com/datasheet-pdf/pdf/25103/STMICROELECTRONICS/TDA7294.html
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You need to post schematics for s730 filter circuit, not the chips datasheet.
It will be quite a few caps.
It will be quite a few caps.
Yes, has nothing to do with the chips, but with the capcitors used to implement the filter. Generally speaking, doubling or halving the capcitors will halve or double the cut off frequency but it very much depends on what type of filter is being used.
How do you know the satellites can even produce quality sound down to 80 Hz?
The mfg probably chose 150 Hz cut off for that small driver because perhaps that's all it can do without distorting.
Can't you just increase the level of the sub with respect to the satellites to "get more bass"?
An alternate solution is to add another sub.
Of course you can certainly try to lower the satellite cut off but I think you will be doing a lot of work to gain nothing or possibly even make it worse.
The mfg probably chose 150 Hz cut off for that small driver because perhaps that's all it can do without distorting.
Can't you just increase the level of the sub with respect to the satellites to "get more bass"?
An alternate solution is to add another sub.
Of course you can certainly try to lower the satellite cut off but I think you will be doing a lot of work to gain nothing or possibly even make it worse.
You may be lucky and find 2way active crossover similar to yours at Elliot Sound Products page.
https://sound-au.com/projects-0.htm#xvr
https://sound-au.com/project123.htm
You need to recalculate cap values for new crossover frequency, in both, upper and lower section. Not an easy job.
Hard to understand what you actually want.
https://sound-au.com/projects-0.htm#xvr
https://sound-au.com/project123.htm
You need to recalculate cap values for new crossover frequency, in both, upper and lower section. Not an easy job.
Hard to understand what you actually want.
You could trace it yourself. The high and low pass filters will be formed by the NE5532, blue capacitors and resistors. Look up 'sallen key high pass circuit' and try to find the bits of circuit board that correspond to it.
It seems you want your system for music.
My guess is your sub is not producing the upper bass, hence using new satellites.
5"~6" woofers are suitable. 4" or smaller won't give you the upper bass.
subwoofer is producing upper bass but not enough for my ear))), it has more low bass and i like it , have in plan to buy another one , but i need satelits to get upper bass and i my case i changed satelits with 2 6.5 inch speakers, but it feels that frequency is cutted from 150 something like that
Woofers are different from full range speakers, construction is different, though they may look alike.
Also, most of these circuits use an op amp with a frequency filter to take out the bass from the input, many well known circuits are used, the higher frequencies go to the smaller satellite speakers.
Cutoff is decided by R-C networks in many cases.
Try using an equalizer in the software first, that may help.
Programs like Winamp have a spectrum analyzer, that helps you check what is happening.
So, please post a schematic, and wait for the more experienced members to help you.
Also, most of these circuits use an op amp with a frequency filter to take out the bass from the input, many well known circuits are used, the higher frequencies go to the smaller satellite speakers.
Cutoff is decided by R-C networks in many cases.
Try using an equalizer in the software first, that may help.
Programs like Winamp have a spectrum analyzer, that helps you check what is happening.
So, please post a schematic, and wait for the more experienced members to help you.