'Need help with STK4142 amp circuit"

sagard · 3rd December 2010, 06:06 PM

Hi All,

I am sagar from Bangalore.

i am making STK 4142 amplifier,

i have given all connections but i don't know where to give BASS and TREBLE board connections on BT Board and Volume control,i hope some one can help me in this regard,please go through the below link for the details,please do let me know if you require more details.

http://picasaweb.google.com/sagar.nd...DigitalBoards#

Thanks
sagar

rakesh_sharma23 · 4th December 2010, 06:34 AM

you can user dual volume and connect then to the back side of BT pcb where it's marked BASS and TRE..

sagard · 6th December 2010, 10:23 AM

Thanks rakesh..this project is now finished after taking to technician.

rakesh_sharma23 · 6th December 2010, 11:17 AM

STK 4142 is 25+25 w chip .. now your project is working can you share ur experience about the Audio quality of the Chip when compaired with TDA2050 32w IC..

sagard · 7th December 2010, 08:31 AM

HI Rakesh,
i never user TDA series,but i can explain this.This STK 4142 II is noise less,very claritive,with perfect Bass and treble quality.i checked giving only 30 % out put volume to woofer ,it was very very good,i like this amp a lot now. I have connected to PC.Please let me know if you need more details on this.I have use original STK (there are other duplicate STK's available in market which will work but voice will not be good at all.)

IndAudio · 22nd December 2010, 02:58 PM

Hi Rakesh
I've been using STK series amps for 10 + years. There were very popular in 90's. I still love them for advantages such as crisp and clear sound, low floor noise etc.. I had compared STK 4141 II with LM 3886, TDA 7492, TDA 2020 using same source and drivers, only changing input resistance. Wanted to do with TDA2050 but dropped idea after not liking TDA2020 (same manufacturer). For some reason STK sounded natural, especially the mids and highs. Bass is extremely good if not pushed to the limit.
STK does have its drawbacks when compared to the above chips like size (STK is Hybrid not a monolithic and hence big in size), price (STKs are quite expansive), protection against shorts, overheating, high voltages etc that the other chips offer. Also STK is 20 year old design whereas some of these other chips are quite new. And in recent years we have seen many STKs sold in market are fakes.
Having said all that I still prefer to use STK chips for the shear listening pleasure they offer over the complete range of frequencies.

hipanni · 27th December 2010, 01:35 PM

hi
this is kannaa
just u will try to la4440 matching bass treble circuit for stk ic. this circuit using single transistor per channel but more effective. your circuit is gives little noise.

tbg · 2nd October 2012, 08:49 PM

hi!you can use also negative feedback tone control for sounds clarity.

3rd December 2010, 06:06 PM	#1
sagard diyAudio Member Join Date: Nov 2010	'Need help with STK4142 amp circuit" Hi All, I am sagar from Bangalore. i am making STK 4142 amplifier, i have given all connections but i don't know where to give BASS and TREBLE board connections on BT Board and Volume control,i hope some one can help me in this regard,please go through the below link for the details,please do let me know if you require more details. http://picasaweb.google.com/sagar.nd...DigitalBoards# Thanks sagar

27th December 2010, 01:35 PM	#7
hipanni diyAudio Member Join Date: Jul 2009 Location: chennai	stk bass treble hi this is kannaa just u will try to la4440 matching bass treble circuit for stk ic. this circuit using single transistor per channel but more effective. your circuit is gives little noise.

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6th December 2010, 10:23 AM	#3
sagard diyAudio Member Join Date: Nov 2010	Thanks rakesh..this project is now finished after taking to technician.

6th December 2010, 11:17 AM	#4
rakesh_sharma23 diyAudio Member Join Date: Apr 2005 Location: India	STK 4142 is 25+25 w chip .. now your project is working can you share ur experience about the Audio quality of the Chip when compaired with TDA2050 32w IC..

7th December 2010, 08:31 AM	#5
sagard diyAudio Member Join Date: Nov 2010	HI Rakesh, i never user TDA series,but i can explain this.This STK 4142 II is noise less,very claritive,with perfect Bass and treble quality.i checked giving only 30 % out put volume to woofer ,it was very very good,i like this amp a lot now. I have connected to PC.Please let me know if you need more details on this.I have use original STK (there are other duplicate STK's available in market which will work but voice will not be good at all.)

22nd December 2010, 02:58 PM	#6
IndAudio diyAudio Member Join Date: Dec 2010 Location: Bangalore	Hi Rakesh I've been using STK series amps for 10 + years. There were very popular in 90's. I still love them for advantages such as crisp and clear sound, low floor noise etc.. I had compared STK 4141 II with LM 3886, TDA 7492, TDA 2020 using same source and drivers, only changing input resistance. Wanted to do with TDA2050 but dropped idea after not liking TDA2020 (same manufacturer). For some reason STK sounded natural, especially the mids and highs. Bass is extremely good if not pushed to the limit. STK does have its drawbacks when compared to the above chips like size (STK is Hybrid not a monolithic and hence big in size), price (STKs are quite expansive), protection against shorts, overheating, high voltages etc that the other chips offer. Also STK is 20 year old design whereas some of these other chips are quite new. And in recent years we have seen many STKs sold in market are fakes. Having said all that I still prefer to use STK chips for the shear listening pleasure they offer over the complete range of frequencies.

2nd October 2012, 08:49 PM	#8
tbg diyAudio Member Join Date: Aug 2012	hi!you can use also negative feedback tone control for sounds clarity.