TSSA V1.6 Errata

sonnya · 5th June 2013, 11:04 PM

Hi all.

We have made an Errata for the TSSA V1.6 AMP.

Add a 470R resistor between Q12-C and Q15-S and between Q13-C and Q14-S

This help stabilize idle current of the amp.

buzzforb · 5th June 2013, 11:08 PM

Sonny,
although I have not looked intently, I have not noticed any issue. Are there other factirs at play?

Salas · 5th June 2013, 11:11 PM

That will take a couple of vias cut with a craft knife?

sonnya · 5th June 2013, 11:27 PM

No, i have pictures. on how it is done.

Basicly we can list Collector and insert the resistors in between.

I have an extra note for it. (Damping factor get higher)

Salas · 5th June 2013, 11:46 PM

OK, we will see the pictures at a point then.

Siberia · 8th June 2013, 10:09 PM

Pictures would help. Thanks.

Siberia · 12th June 2013, 08:04 PM

If anybody has implemented it and has pictures, I'm willing to watch

sonnya · 12th June 2013, 08:10 PM

Hi Tomas , Justin and others.

I am preparing the mod pictures.

You will need a tweezer, scalpel and 330R 0805 1% resistors

- Sonny

Siberia · 12th June 2013, 08:26 PM

Seems like I'm up for the first SMD mount. I hope that doesn't mean I have to buy soldering tweezers

For R, something like that?

PCF0805-13-330R-B-T1. - WELWYN - RESISTOR, 330R 0805 5PPM | Farnell United Kingdom

Plus 5.6k for R7, R8 and 500R for R22, if low impedance is desired?

Siberia · 13th June 2013, 11:57 AM

Guys, as I'm prepping a Farnell order to have parts before weekend, I want an advice that might be slightly out of your competence. Still, would like to know what you intuition says.

I'm almost sure that my speakers would benefit from lower impedance of this amp. Although I have never done SMD. Should I risk replacing those resistors without special equipement like smd tweezers? Same question for idle current stability mod.

5th June 2013, 11:04 PM	#1
sonnya diyAudio Member Join Date: Oct 2001 Location: Denmark	TSSA V1.6 Errata Hi all. We have made an Errata for the TSSA V1.6 AMP. Add a 470R resistor between Q12-C and Q15-S and between Q13-C and Q14-S This help stabilize idle current of the amp.

5th June 2013, 11:08 PM	#2
buzzforb diyAudio Member Join Date: Oct 2010 Location: Burlington, NC	Sonny, although I have not looked intently, I have not noticed any issue. Are there other factirs at play? __________________ ...Shape the sound , Man!

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5th June 2013, 11:11 PM	#3
Salas diyAudio Chief Moderator Join Date: Oct 2002 Location: Athens-Greece	That will take a couple of vias cut with a craft knife?

5th June 2013, 11:27 PM	#4
sonnya diyAudio Member Join Date: Oct 2001 Location: Denmark	No, i have pictures. on how it is done. Basicly we can list Collector and insert the resistors in between. I have an extra note for it. (Damping factor get higher)

5th June 2013, 11:46 PM	#5
Salas diyAudio Chief Moderator Join Date: Oct 2002 Location: Athens-Greece	OK, we will see the pictures at a point then.

8th June 2013, 10:09 PM	#6
Siberia diyAudio Member Join Date: Feb 2011 Location: Vilnius	Pictures would help. Thanks.

12th June 2013, 08:04 PM	#7
Siberia diyAudio Member Join Date: Feb 2011 Location: Vilnius	If anybody has implemented it and has pictures, I'm willing to watch

12th June 2013, 08:10 PM	#8
sonnya diyAudio Member Join Date: Oct 2001 Location: Denmark	Hi Tomas , Justin and others. I am preparing the mod pictures. You will need a tweezer, scalpel and 330R 0805 1% resistors - Sonny

12th June 2013, 08:26 PM	#9
Siberia diyAudio Member Join Date: Feb 2011 Location: Vilnius	Seems like I'm up for the first SMD mount. I hope that doesn't mean I have to buy soldering tweezers For R, something like that? PCF0805-13-330R-B-T1. - WELWYN - RESISTOR, 330R 0805 5PPM \| Farnell United Kingdom Plus 5.6k for R7, R8 and 500R for R22, if low impedance is desired?

13th June 2013, 11:57 AM	#10
Siberia diyAudio Member Join Date: Feb 2011 Location: Vilnius	Guys, as I'm prepping a Farnell order to have parts before weekend, I want an advice that might be slightly out of your competence. Still, would like to know what you intuition says. I'm almost sure that my speakers would benefit from lower impedance of this amp. Although I have never done SMD. Should I risk replacing those resistors without special equipement like smd tweezers? Same question for idle current stability mod.