I spent too much time trying to figure out the lost of one channel when power caps were added. The frustration!!!
I could add just a single power cap at 6800uf/50V along with the MW 24v/6a and the voltage would be fine but ...again, only one channel working.
I am ready to call it "defected" and use it with all the "Audio1st mod" except the extra caps.
I could add just a single power cap at 6800uf/50V along with the MW 24v/6a and the voltage would be fine but ...again, only one channel working.
I am ready to call it "defected" and use it with all the "Audio1st mod" except the extra caps.
I'm only guessing wildly, but I would like to learn what happens when you hook up the PSU with the caps, power it up and only afterwards connect it to the board vs. mounting the caps to the board and then switching on the power supply.
I have tried that too. Attached the power caps to the power supply for a short moment before switching on the board. Same thing, no power on channel one.
twisted? I asked for inductivity that can lead to ringing with the capacitance. But I wouldn't know why this should blow out only one channel.
Howdy, been an avid follower of this thread for a while, finally registered to see everyone's image attachments...
I got my board from Sure today, ran it stock to power a pair of Infinity Primus P152s with my computer's Audigy 2 as a source... loud enough for my apartment at 10% volume... and sounds at least on par with the old Onkyo receiver I sold before I moved.
It seems that people in this thread recommend removing the TVSS underneath the inputs on the bottom of the board, is there any rationale for keeping them? I'm not sure if I'm going to swap out other components yet as I'm not exactly that discerning of a listener, but I'd like to at least swap out that poor excuse of a heatsink with a Zalman NB-47J or similar...
I got my board from Sure today, ran it stock to power a pair of Infinity Primus P152s with my computer's Audigy 2 as a source... loud enough for my apartment at 10% volume... and sounds at least on par with the old Onkyo receiver I sold before I moved.
It seems that people in this thread recommend removing the TVSS underneath the inputs on the bottom of the board, is there any rationale for keeping them? I'm not sure if I'm going to swap out other components yet as I'm not exactly that discerning of a listener, but I'd like to at least swap out that poor excuse of a heatsink with a Zalman NB-47J or similar...
Hi,
I am using the board as is, and have no desire to change anything except the heatsink, as well as you. I think its fine and working as intended compared to my MyrevC and various Vintage and PA Amps.
Furtheron, even though it is maybe possible to upgrade this or that to a degree I think most of the "recommendations" here are based on psychoacoustic phenomenas, as I see no measurements only subjective statements (which are ok, but are just that to me). There is also the point, that things can get worse with diy, especially when you are on some wrong track, like stating that you hear if 20KHz is 1dB louder, "has gotten better" or is "lacking in top end".
I think the Amp can sound different after modification, but why should it be better for someone else ('s System), except if there are objective comparable indicators that show it?
Regards, Micha
I am using the board as is, and have no desire to change anything except the heatsink, as well as you. I think its fine and working as intended compared to my MyrevC and various Vintage and PA Amps.
Furtheron, even though it is maybe possible to upgrade this or that to a degree I think most of the "recommendations" here are based on psychoacoustic phenomenas, as I see no measurements only subjective statements (which are ok, but are just that to me). There is also the point, that things can get worse with diy, especially when you are on some wrong track, like stating that you hear if 20KHz is 1dB louder, "has gotten better" or is "lacking in top end".
I think the Amp can sound different after modification, but why should it be better for someone else ('s System), except if there are objective comparable indicators that show it?
Regards, Micha
Hey guys
I love this little amp.
Im running it with a laptop power supply and used it recently at a party and pounded the crap out of it for 5 hours straight. It took it in its stride running 6 ohm ported speakers from a laptop. It didnt miss a beat!!!
Love this thing, oh and its shoved in an M&M case. The amount of people that commented and asked me about it was insane, especially as teh night went on and everyone started getting drunker. I was known as the M& man all night.
I love this little amp.
Im running it with a laptop power supply and used it recently at a party and pounded the crap out of it for 5 hours straight. It took it in its stride running 6 ohm ported speakers from a laptop. It didnt miss a beat!!!
Love this thing, oh and its shoved in an M&M case. The amount of people that commented and asked me about it was insane, especially as teh night went on and everyone started getting drunker. I was known as the M& man all night.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
yup
24V, 0.4W, 2 CO 8A
its a tyco RT424024
if you are considering the simple soft start contraption:
the series resistor that is in line when the relay is off must not be too large.
Otherwise the voltage drop over the board is too low and the relay does not fire. I use 47 Ohm. 68 Ohm works barely.
yay, i recieved the new version with the fan on yesterday, its the exact same height as the heatsink. Id be interested in knowing how much current the board uses from the LM317 regulator, it gets too hot to touch quickly just on idle. Id like to run an additional led from it...
konman: snug fit and beautiful enclosure! I also get a lot of discussions about this little amp at parties - social electronics 😛
konman: snug fit and beautiful enclosure! I also get a lot of discussions about this little amp at parties - social electronics 😛
looks and comparison:
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
Just posted eleswhere about my review of this amp board and this thread was pointed out to me. Looks like I am coming in very late to the party!
I am loving this amp, fantastic sound if slightly overemphasized in the mid range when used with my mission 753s
I think I am going to go with a larger input cap to begin with, then see how I like the sound then. meanwhile I need to put an hour or so by to chew through this thread
http://www.justblair.co.uk/sure-2x100w-tk2050-amplifier-first-impressions.html
I am loving this amp, fantastic sound if slightly overemphasized in the mid range when used with my mission 753s
I think I am going to go with a larger input cap to begin with, then see how I like the sound then. meanwhile I need to put an hour or so by to chew through this thread
http://www.justblair.co.uk/sure-2x100w-tk2050-amplifier-first-impressions.html
Hi Guys,
Guess what !!!! Not 2 channel BUT 4 and all for $54 USD
Check this out ; http://www.sureelectronics.net/goods.php?id=960
Sure Electronics just answered one question and this is what I got 😀
E-bay does not show this new baby as we speak but based from their store this is the price, life is good 🙂
Eric
Guess what !!!! Not 2 channel BUT 4 and all for $54 USD
Check this out ; http://www.sureelectronics.net/goods.php?id=960
Sure Electronics just answered one question and this is what I got 😀
E-bay does not show this new baby as we speak but based from their store this is the price, life is good 🙂
Eric
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