I don't know why I was saying 12v all along. I was mixing it up with another one. It is 32v for the protection and 28v ac for the soft start.
Waiiit a second. So it doesn't matter than the relays' operational voltage is 12V? Does the u1237 have some sort of regulator or something for the relays?
So we need to get a voltage high enough to match the 1237?
And on Page 22, the poster says that he was using a 15V transformer which at max could be 21VDC.
How does that work if it needs 25VDC minimum?
So we need to get a voltage high enough to match the 1237?
And on Page 22, the poster says that he was using a 15V transformer which at max could be 21VDC.
How does that work if it needs 25VDC minimum?
Why not put it down to experience. It was only a few bob. Look at all the great amps, they don't have this. It is a fad. And you are not helping the Chinese out of poverty!
I understand your dillema. He may appear to be arrogant, but unfortunately the German is right. (sorry pacificblue, but I did live in Berlin for 10 years). I do not know a high end amplifier that uses a speaker protection circuit. The idea is 'the simpler the better'. Just build the amp. Sound is what matters. I weighed my last one up against a Linn kolector pre with a Naim 140 and it blew it out of the water. The less the better.
Shucks. Well I guess it was only $11 but it seems silly not to.
What is it actually protecting from? Surge? Or overcurrent from the speakers?
DC, apparantly it blows your speakers up, but I am currently using a Naim which cost a fortune, and it or any of the best amps don't bother with this thing. I have been in the business for 50 years and iv'e never blown a speaker. What are you doing up at this time of night?
It's only 8:50PM here. It's about 2am there I suppose? I think the question is what are you doing up? 😉
Oh you live in a country where they can't get the time right. OK. forget the stupid speaker protection. It's not worth the hassle. Sell it to a farmer.
Well thats not really under my control...
Well hey, it will make it simpler for me anyway. I'm still new to the game so it'll help out a bit, to make it simpler. Besides, I'm not going to play these super loud and if the cans start rattling too much, then I'll turn it down...
Well hey, it will make it simpler for me anyway. I'm still new to the game so it'll help out a bit, to make it simpler. Besides, I'm not going to play these super loud and if the cans start rattling too much, then I'll turn it down...
Haha...Yes they do have amplifiers here. =P Yes I live about 20 minutes from New York.
I'm still laughing at my own jokes, but seriously the German bloke does know what he is talking about. I felt realy stupid when I said 12v. Well, i'm only human, but I think he will agree with me that amplifiers had never heard of speaker protection until recently. Did your grandma's old valve thing blow the speakers up? No it didn't. Did you see my last two amps based on the same 'Yuanjing' amp that you are using. They sound incredible. They never hissed or hummed and are based on the same circuit that made the famous gaincard, that is a short signal path. Us Brits championed the idea of a short signal path, that is after the Japs invented it. I don't think the the Germans got further than Grundig. (oh ****, when he reads this tomorrow he is going to give me hell). I am up late, but I love the news. Now, when the speaker protection thingy arrives, throw it at you neighbour (i know you cannot spell that correctly) and tell them it is a contracetptive.
There is a bloke in India called Linuxguru who is a genius. If you read back on this thread he has made this little amp a star. I am sure if we keep calling he's name he will turn up to help you. Linuxguru, Linuxguru,Linuxguru,Linuxguru,Linuxguru,Linuxguru,Linuxguru,Linuxguru, well, it might be late in India too.
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