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Old 3rd December 2010, 06:06 PM   #1
sagard is offline sagard  India
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Join Date: Nov 2010
Default '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.


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Old 4th December 2010, 06:34 AM   #2
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Join Date: Apr 2005
Location: India
you can user dual volume and connect then to the back side of BT pcb where it's marked BASS and TRE..
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Old 6th December 2010, 10:23 AM   #3
sagard is offline sagard  India
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Join Date: Nov 2010
Thanks rakesh..this project is now finished after taking to technician.
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Old 6th December 2010, 11:17 AM   #4
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..
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Old 7th December 2010, 08:31 AM   #5
sagard is offline sagard  India
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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.)
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Old 22nd December 2010, 02:58 PM   #6
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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.
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Old 27th December 2010, 01:35 PM   #7
hipanni is offline hipanni  India
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Join Date: Jul 2009
Location: chennai
Default stk bass treble

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