I already have "Aiyima A03" TPA3116D2 based complete amp.I am about to buy TPA3255 Based Aiyima A07 Pro to feel more BASS than A03.
1) How was the Bass performance over Aiyima A03?
2) I am going to connect 5.25" woofer size Philips Bookshelf Speakers for home Audio Listening.
Will I get a noticable different between thses two models A03 vs A07 Pro?
I am a Bass Lover.
1) How was the Bass performance over Aiyima A03?
2) I am going to connect 5.25" woofer size Philips Bookshelf Speakers for home Audio Listening.
Will I get a noticable different between thses two models A03 vs A07 Pro?
I am a Bass Lover.
Hi all.
In order not to create a new topic, I will write here.
There is an amplifier Aiyima A07 Pro. Bass adjustment is done poorly. When increased, adjacent frequencies up to 500 Hz are captured. As a result, the bass is terrible and buzzing. It is necessary to shift the rise of the lower frequencies below 100 Hz.
Tell me, please, does anyone have a circuit diagram for the tone block? Maybe someone has already remade the tone block?
In order not to create a new topic, I will write here.
There is an amplifier Aiyima A07 Pro. Bass adjustment is done poorly. When increased, adjacent frequencies up to 500 Hz are captured. As a result, the bass is terrible and buzzing. It is necessary to shift the rise of the lower frequencies below 100 Hz.
Tell me, please, does anyone have a circuit diagram for the tone block? Maybe someone has already remade the tone block?
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Hi Djmorozoff.
I suggest that you locate the tone control associated capacitors and resistors by buzzing them out with a multimeter. Place one probe on the potentiometer pins, and then find where the potentiometer pins are connected - to which components. Draw a tone control diagram and post it here. It shouldn't be that difficult. It should look like this:
https://www.eleccircuit.com/passive-tone-control-circuit/
Just a little warning... replacing the surface mount resistor and capacitors is not going to be an easy task.
So, I suggest you bypass the tone control altogether, and adjust the sound with your source, if possible of course.
Good luck.
I suggest that you locate the tone control associated capacitors and resistors by buzzing them out with a multimeter. Place one probe on the potentiometer pins, and then find where the potentiometer pins are connected - to which components. Draw a tone control diagram and post it here. It shouldn't be that difficult. It should look like this:
https://www.eleccircuit.com/passive-tone-control-circuit/
Just a little warning... replacing the surface mount resistor and capacitors is not going to be an easy task.
So, I suggest you bypass the tone control altogether, and adjust the sound with your source, if possible of course.
Good luck.
Hi Extreme_Boky.
Thanks for the answer. Tomorrow I'll start drawing.
I don’t want to give up the tone block because of it I bought this amplifier model.
Thanks for the answer. Tomorrow I'll start drawing.
I don’t want to give up the tone block because of it I bought this amplifier model.
Have a look at rod elliotts tone control, if you consider adding a circuit:
http://sound-au.com/project97.htm
I want to change the values of the elements in the built-in tone control and lower the bass control frequency.
Here's what I found. Now it's easier to find bass adjustment elements.
https://audiosciencereview.com/forum/index.php?threads/aiyima-a07-pro.39439/post-1424998
https://audiosciencereview.com/forum/index.php?threads/aiyima-a07-pro.39439/post-1424998
Ready.
Judging by this calculator, it is enough to change the capacity of C72.
http://rcl-radio.ru/?p=91104
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I'll share a positive result.
I installed C72, C75 with a different capacity of 100 nf, the native one is set to 28 nf. According to calculations, 80 nf is needed. And lo and behold! Now frequencies around 40 Hz are added. The buzzing and muttering disappeared. Now I will not sell this amplifier.
I installed C72, C75 with a different capacity of 100 nf, the native one is set to 28 nf. According to calculations, 80 nf is needed. And lo and behold! Now frequencies around 40 Hz are added. The buzzing and muttering disappeared. Now I will not sell this amplifier.
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