Aiyima A07 Pro Amplifier Review

[carlmart]

In English, please.

 

[Wipwhopp]

I have one and I it lacks highs for my taste, not terrible but the knob dont give the ammount that I wish to have. There's this opamps but it cost almost the price of the amp, I'm scared to spend some dollars in it.

 

[carlmart]

Which opamps are you talking about?

 

[Wipwhopp]

Which opamps are you talking about?

Any of these that ppl are reviewing and suggesting to be a good upgrade in youtube and forums..

 

[NTK]

Any of these that ppl are reviewing and suggesting to be a good upgrade in youtube and forums..

The TPA3255 chip that does all the heavy lifting in this amp costs USD $2.1 each in quantities of 2000 pieces. How much do you think would be reasonable to spend on the op-amps that supply the signals to it?

 

[Wipwhopp]

The TPA3255 chip that does all the heavy lifting in this amp costs USD $2.1 each in quantities of 2000 pieces. How much do you think would be reasonable to spend on the op-amps that supply the signals to it?

View attachment 429455

I would probably think in this terms... not nothing major and costly.
Edit: if indeed opamps alter the gain structure of the signal and give the extra whompf in the highs I would perhaps think of spending a few bucks... is it true that opamps can do it? The amp has power enough to handle my 2way speakerz.

 

[LTig]

Edit: if indeed opamps alter the gain structure of the signal and give the extra whompf in the highs I would perhaps think of spending a few bucks... is it true that opamps can do it?

No, the gain is defined by the circuit design (the passive components around the opamp), not the opamp itself. That's why rolling opamps is futile.

 

[Wipwhopp]

Is there any a person not well versed in eletronic can do to give a bit more gain to the high knob control?

 

[NTK]

Is there any a person not well versed in eletronic can do to give a bit more gain to the high knob control?

Amir's measurements showed that the A07 Pro has a gain of ~29 dB, and its max power into 8 ohm is 59 W. That mean it only requires 0.77 Vrms input to drive it to clipping. What source are you using with the A07 Pro? Does it give you enough volume with the knob turned all the way to max?

 

[Wipwhopp]

Amir's measurements showed that the A07 Pro has a gain of ~29 dB, and its max power into 8 ohm is 59 W. That mean it only requires 0.77 Vrms input to drive it to clipping. What source are you using with the A07 Pro? Does it give you enough volume with the knob turned all the way to

Cdplayer, is there any room to boost high gain or it is too close from dist9rtion?

 

[LTig]

Cdplayer, is there any room to boost high gain or it is too close from dist9rtion?

It is much easier to help you if you answer the questions.

 

[Wipwhopp]

It is much easier to help you if you answer the questions.

Oh sorry, yes full volume almost unbearable power ans volume to be honest. I don't use it beyond 10 o' clock most of times.

 

[LTig]

Oh sorry, yes full volume almost unbearable power ans volume to be honest. I don't use it beyond 10 o' clock most of times.

Then all is fine, no need to worry.

 

[Wipwhopp]

Then all is fine, no need to worry.

Not worried just asking if theres any available easy fix.

 

[LTig]

Not worried just asking if theres any available easy fix.

As I see it there is nothing to fix. If volume at max is too loud to bear, what else to you need?

 

[Wipwhopp]

As I see it there is nothing to fix. If volume at max is too loud to bear, what else to you need?

I already said that it is lacking high gain in the knob control and I'm asking here if there's a easy fix just exactly this nothing else. Why do you mind if the volume is at max?

 

[Zek]

I already said that it is lacking high gain in the knob control

What exactly do you mean by this - what's missing?

 

[Wipwhopp]

Not high gain, pardon me, gain in the high knob...

 

[LTig]

Not high gain, pardon me, gain in the high knob...

The treble control knob ? If yes: does it work at all? Does the bass knob work?