[Ichos]

info@lake-people.de

 

[Bonddam]

This is inside shot. Being I don’t use the preamp I am going to add extenders until it clears.

 

[Bonddam]

I put one in just need to know if it’s in right way. One extender used but I’d say do two because the bottoms of the op amp touches the red thing. I had to use a paper clip to remove stock op amp

 

[Bonddam]

In the pic I painted the indent white to remember placement.

 

[Bonddam]

Is indent pin one? Is gold corner on op amp pin one?

 

[Bonddam]

123356 count it out. It WORKS!!!!!!!!!!!! I don’t know if it changed anything. Kinda don’t remember. The preamp has enough clearance to go back on

 

[Bonddam]

123356 count it out. It WORKS!!!!!!!!!!!! I don’t know if it changed anything. Kinda don’t remember. The preamp has enough clearance to go back on

 

[Bonddam]

Tools used all husky brand from Home Depot. Only one support arm didn’t go back in, not needed as there is no pressure issues unless it is part of a ground system I’ll never know as I don’t use preamp as I have separate system for my two channel setup.

 

[Bonddam]

It sounds good using Diana v2 got good bass midrange and treble. Don’t ask for imaging or soundstage as I listen to edm off iTunes.

 

[Christoph]

@Bonddam
Nice idea of stacking the extenders.
The top extender belongs to the opamp, the bottom is soldered on the v281 PCB, the two in the middle you have added.

However you have now 3 points of contact without solder per pin, asking me if this could be reduced to 1 pin.

Nevertheless, please post your impressions about the mod, well done.

 

[Bonddam]

@Bonddam
Nice idea of stacking the extenders.
The top extender belongs to the opamp, the bottom is soldered on the v281 PCB, the two in the middle you have added.

However you have now 3 points of contact without solder per pin, asking me if this could be reduced to 1 pin.

Nevertheless, please post your impressions about the mod, well done.

I added one extender and no more. The extender is gold which was $1.90 for 2. I figure gold is better conductor. The op amp pins are gold if I remember. This of course voids warranty and do it at your own risk. Sound is amazing I’d hate be told to listen to it stock. I’ve only listened hour and a half so not long enough to see or hear any issues.

 

[Christoph]

I see, its only one extender. The pic was misleading when i saw it in small size on my mobile.
Gold is not used, because its a better conductor, copper or silver are better conductors for example.
The only reason Gold is used that it doesn't tend to oxidation which would cause a contact resistance.

Maybe i wait until my warranty is expired, but a nice easy to apply mod.

 

[Geezer Rock 001]

Sparkos roll update.

One V281 and one V 280 owner rolled them in their lower deck signal path. Both rolls produced more heat than either owner remembered when the stock op amps were in. There was a positive sonic change but the risk of damage was not warranted at this point.

I apologize for hijacking the V281 thread with my enthusiasm for my assumption that what worked in a V200 would work in a V280/281.

I will go back to under the rock where the V200 people live.

Sorry!

 

[Christoph]

Sparkos roll update.

One V281 and one V 280 owner rolled them in their lower deck signal path. Both rolls produced more heat than either owner remembered when the stock op amps were in. There was a positive sonic change but the risk of damage was not warranted at this point.

I apologize for hijacking the V281 thread with my enthusiasm for my assumption that what worked in a V200 would work in a V280/281.

I will go back to under the rock where the V200 people live.

Sorry!

No need to apologize
One question before you hide under the mentioned rock:

Did you measure the temperature (if yes, where?),
or was this a subjective impression?

 

[Geezer Rock 001]

The V280 and V281 owners can give you their impressions.

Pharamboy installed his in the line out signal path. He did an excellent temperature study with no appreciable increases. But that was on the top deck of the amp.

I did a test yesterday with a thermometer on the top cover of a V200. Three hours at idle and then 3 1/2 hours at load the temperature went from 68°F to 82°F and felt cool to my fingers. The temperature felt the same in all area of the top cover.