v_benkhan

Responses from v_benkhan

Solid state AB amp?
I don’t think so. Say, the bias is equal to 70mA. This current must be the amplitude current of the speaker. Say, you have 8Ohm speakers. The highest power P = I * I * R / 2 = 0.02W. If your speaker has 101dB/W/m you will get 84dB maximum. Class A... 
Preventive maintenance or wait till it breaks?
The main problem is following: you replace 20 years old capacitors that can work 20 years more to new ones that can work just for 3 years. Sometimes old parts had much better quality than same new parts. 
Distortions that the human ear likes. Are there any ?
This is right. Say, some audiophiles use single-output tube amplifiers with output triodes and low feedback or without feedback at all. Such devices produce strong second harmonic and these people decide that this is a sample of ideal sound. 
Good starter amp recommendation
I don’t like idea about home theater with 5+1 channels and so on. We must choose between bigger area of stereo effect and small area at the very center of the room with saround effect inside. It is a system for one listener. Another point is that ... 
Why the fascination with subwoofers?
Look, small bookshelf speakers begin to work effectively from 120-150Hz. I mean really flat characteristic. There are different reasons for it. So, subwoofer mast work to 160-180Hz in this case. Just if you install it at center between the main sp... 
I feel bad for speaker manufacturers
Hi thereYou are right, speakers are the most tricky and expensive part of audio complex. They must convert rather formal electrical signals to highly natural acoustic ones. All existing methods of design for such devices have achieved their limita... 
Hey That's Not So Bad if It's Class D
Hi thereI built a few amplifiers using PCB's that bought from AMAZON. It is important what chips are installed there. I like devices based on TDA7498 and TDA8950 and I don't like TPA3116D2. You must check it in their description. Also, the stronge... 
What class of amplifier has the most high definition sound ?
Hi thereWe can get the most natural sound from class A amplifiers. They have "soft" distortion spectrum and they are stable for pulse signals because of stable power consumption. But they produce some specific problems too. Open my page in LinkedI... 
Budget hi-fi and vintage audio gear
I have several old amplifiers, the oldest one is from 1977. Some of them work really good. Say, you can get Luxman LV-110 through internet for price not more than 100 Euro. Or it can be just cheaper receiver Technics SA-222. There are two problems...