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Well, looks like my SA-160 has even more surprises in store.
1. Power Jack sparkles every time I connect the power plug. (Amp in Standby mode, power adapter connected in to the surge protector).
2. With no speakers attached when feeding audio through RCA inputs, you can actually hear music playing when you put your ear to the amp. (Very faint but obvious).
1. I have 2 different SMSL class D amps and they both "spark" when I attached the power cord. I would call that normal and it will not hurt your electronics. Just don't plug them in next to anything flammable of course.
2. I am a little confused at how you are hearing MUSIC from just the amp with no speaker (driver) attached. Closest thing i can guess is some sort of whine and/or pop from a faulty capacitor but that would not really be music. You got me there, I think you should contact SMSL directly for support or a warranty replacement.
1. Ok, let's pass off the sparkling/arcing as normal.
2. You're not the only one confused. And no, you're not misinterpreting me. The sound IS emanating from the amp. You know how the music is leaking from someone's overly loud earbuds - that's the kind of sound I'm hearing. I'll try to make a video to prove it.
3. This is to ktam - I have nothing against cheap and nothing against Chinese. In fact I've mentioned in my previous post I'm using SMSL M8 DAC for my desktop system and very happy with the sound quality. I'm also extremely satisfied with Trends TA 10.2 SE amplifier which is also produced by a Chinese company. While Trends has not nearly the power of SA-160, the sound quality is miles beyond SMSL.
I try to be impartial. I give credit to where credit is due (SMSL M8 DAC) and use my right to give a bashing (SMSL SA-160) when it's justified.
For the sake of higher power output, the power supply of SMSL SA-160 is rated at 36V and 5.67A. However, under 36V and 5.67A, the THD of TDA7498E can reach 10%. I believe SA-160 is having a heavy noise level as a trade off of its high output power. Therefore, using a power supply with a lower voltage rating may reduce the noise
When the amp is making the crackle arcing sound does it effect the sound from the speakers?
Hi Futility, I am not accusing that you are against Chinese made products. If you are then you wouldn't have purchase SA-160 . I do not have any doubt of your comments about the product either. Regarding the funny things that happened to your SA-160, it could be you got a defected product or something else that other people in this forum try to help you solve the problems. Regarding the sound quality, it is 100% subjective. For example, I let my friend test drive my new vette a few months ago, after the test drive, his comments was the car is awesome, too bad the sound system is by Bose. I let my nephew and his girl friend test drive my vette last month. Her comment was the sound system is awesome too, no wonder, it is by Bose. LOL
My post was in response to gm0n13's because we both do not have any problem with the products from S.M.S.L. (so far) and coincidentally the first amp that we purchased was a marantz 1070.
When we are young, we like to talk about fxxk story but when we are old we like to talk about history. I am an old fart just like gm0n13.