Stk-chips

Mikelmonster · 26th May 2004, 10:11 AM

Hello, to all users.

I am new here and have only times a question:
Why not STK412-170 with 2x180W power H-Class ?
Thanks for the answers!

Best Regards

Mike

BlackBLOOD · 26th May 2004, 06:36 PM

Well i think STK is a good choice at all but not this one...
This one haves 0,7%THD ..
This is too much.
Look at this one:
http://www.electronics-lab.com/downl.../STK4048XI.pdf

If you make 2 channels whith this one you will be comletly satisfied...

it have 150W @65V - 0,008%THD.
IT is a HibrydIC Clas AB.

I`m currently searching for a bridging technik for 4048XI..
If someone have one pls tell me.

thomas997 · 27th May 2004, 06:22 AM

I just built the example circuit for the STK4122 II , but only the left channel for now.

Tested it out and its not working at all. Do I need some sort of pre amp? just a pot?

Or do I just have to finish off the right channel

btw my Velodyne subwoofer uses STK chips as well, so they must be alright. (although your right, THD is a little high).

thanks

edit: I think my problem is I have no ground on the transformer. Only V+ and V-. hm

26th May 2004, 06:36 PM	#2
BlackBLOOD diyAudio Member Join Date: Apr 2004 Location: Varna,Bulgaria	Well i think STK is a good choice at all but not this one... This one haves 0,7%THD .. This is too much. Look at this one: http://www.electronics-lab.com/downl.../STK4048XI.pdf If you make 2 channels whith this one you will be comletly satisfied... it have 150W @65V - 0,008%THD. IT is a HibrydIC Clas AB. I`m currently searching for a bridging technik for 4048XI.. If someone have one pls tell me. __________________ Denon DCD 595 - 6n23p output SE Class A 6n1p - 6p1p TL - fostex 206 fe

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27th May 2004, 06:22 AM	#3
thomas997 diyAudio Member Join Date: Feb 2004 Location: Vancouver	I just built the example circuit for the STK4122 II , but only the left channel for now. Tested it out and its not working at all. Do I need some sort of pre amp? just a pot? Or do I just have to finish off the right channel btw my Velodyne subwoofer uses STK chips as well, so they must be alright. (although your right, THD is a little high). thanks edit: I think my problem is I have no ground on the transformer. Only V+ and V-. hm

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