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Old 20th February 2011, 05:24 PM   #1381
v-bro is offline v-bro  Netherlands
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You know why they did that? Simple!

Sure is all about the money and placing a different (or adding a) series resistor takes a double pole switch, where adding a parallel resistor takes just a single pole switch..

I'm gonna shut up about the added noise....
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Old 21st February 2011, 02:14 AM   #1382
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V-bro et al - this is a thread about the hifimediy 2050 implementations. At one point, Arjen Helder wandered in here and started promoting his stuff. In the past month or so, people have started dragging Sure and generic practice stuff in.

There are other threads for that stuff - can we please stay on topic?

Thanks.
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Old 21st February 2011, 02:27 AM   #1383
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Quote:
Originally Posted by alkasar View Post
4. go with T4 which has higher gain (and higher voltage power)
Hey, Alkasar, have you seen T4 specs somewhere other than the preview stuff on Nick's website? Would love to see 'em.

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Old 21st February 2011, 06:06 AM   #1384
v-bro is offline v-bro  Netherlands
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Quote:
Originally Posted by bdbender View Post
V-bro et al - this is a thread about the hifimediy 2050 implementations. At one point, Arjen Helder wandered in here and started promoting his stuff. In the past month or so, people have started dragging Sure and generic practice stuff in.

There are other threads for that stuff - can we please stay on topic?

Thanks.

I find it both relevant and see a great relationship, what's the problem?
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Old 21st February 2011, 11:09 AM   #1385
alkasar is offline alkasar  France
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Quote:
Originally Posted by bdbender View Post
Hey, Alkasar, have you seen T4 specs somewhere other than the preview stuff on Nick's website? Would love to see 'em.

I would love to see them in detail too
We have to guess from some Hifimediy posts. It's T1 topology with STA517B power chip, plus some more stuff. Sounds like a promising powerful amp for 8ohm speakers. Hope he gets back soon from new year hollidays


About the other comment: as long as we talk technical and not commercial, i think it is valuable to discuss relevant ideas from similar Sure or 41Hz amps. This thread is not in the vendor section
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Old 21st February 2011, 09:53 PM   #1386
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Originally Posted by GaloDourado View Post
I'm sure relays click on power-on; I must check if they do it also on power-off (I was paying more attention to speaker pop, so I did not realize).

I will post it later when back home
The problem continues.

I can hear relays going on/off, but pop noise continues on boths amps (T1 & T2) when disconecting.

I'm afraid my tweeters will not last too long if I can not solve this
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Old 21st February 2011, 11:02 PM   #1387
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V-bro, I don't wish to be rude, but here's "the problem".

"The T1 and T2 boards should have pretty similar circuitry on the board, but I don't know these amps at all...."

By your own admission you are not familiar with these implementations, so you are just rehashing general Tripath stuff that has been hashed and hashed again already in many places. You are also doling out advice. Have you read the thread?

I keep seeing activity here, and want to know what hifimediy and initial users have to say about new implementations that will be released any day - which IMHO is what this particular thread is for. But that is not is what it is being used for.
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Old 21st February 2011, 11:50 PM   #1388
col is offline col  Australia
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I have no problem with V-bro's posts. It keeps it real.

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Old 22nd February 2011, 06:09 AM   #1389
v-bro is offline v-bro  Netherlands
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It's not exactly like I'm some kind of noob saying silly things now, am I?

There is no need at all to thoroughly know these amps to be able to post about them here, as goes for anyone. If you wish for a private conversation then don't participate to a worldwide open forum.

I am very well aware of the functioning of the circuits on these amps, just don't know the exact details of these particular models. If someone would point me to the circuit drawing I could actually go all into detail about them.

I was just being honest saying I don't know these amps at all....
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Old 22nd February 2011, 06:14 AM   #1390
v-bro is offline v-bro  Netherlands
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Quote:
Originally Posted by GaloDourado View Post
The problem continues.

I can hear relays going on/off, but pop noise continues on boths amps (T1 & T2) when disconecting.

I'm afraid my tweeters will not last too long if I can not solve this
Don't worry too much about your tweeters going bad from the pop.

There is probably not enough delay in the shut down circuit of the relay, this can be just a simple matter of changing a resistor value. Or a capacitor.

Maybe someone has a circuit drawing of this part of the circuit of the amp? I know Sure has all their schematics on line...

Would love to help getting this solved.
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