PopPulse T-amp with Remote - modding

[RaZmaTaZ]

Ok Chuck. Thanks for the advice. I shall change change the fuse and try and get those Vishay caps (6 of 'em huh?)

Meantime, I shall wait for my newly ordered Winsome (and probably order the Value Mod Trends from Audiomagus next week too.) And then will attempt the mods on the Poppulse.

This my new do-all strategy. What the heck? I ain't gonna take any money with me when I die, so let's live a little and learn a whole lot more in the process.

[TheDealer]

Originally posted by RaZmaTaZ
Ok Chuck. Thanks for the advice. I shall change change the fuse and try and get those Vishay caps (6 of 'em huh?)

Meantime, I shall wait for my newly ordered Winsome (and probably order the Value Mod Trends from Audiomagus next week too.) And then will attempt the mods on the Poppulse.

This my new do-all strategy. What the heck? I ain't gonna take any money with me when I die, so let's live a little and learn a whole lot more in the process.

Hi Raz, would be aprechiated if you tell us more after modyfied your amp.

[ChuckT]

The 6 coupling caps are red Elna BP 10uf/16v in the pic.

[RaZmaTaZ]

Chuck

Alright! Thanks. Will try it out.

[TheDealer]

Originally posted by ChuckT
The 6 coupling caps are red Elna BP 10uf/16v in the pic.

Thanks chuck for the pic. Much appreciated. This will help.



Maybe another question: I tried Bi-amping with y-cables.
Worked fine till the buzzing which comes out from one amp. I think
this depends on the voltage transformator. Can I compensate it anyway myself ? I think this doesnt have an effect on the sound or ?
Me myself couldnt hear it out in fact.

[TheDealer]

Originally posted by ChuckT
The biggest bottleneck for the poppulse is the 6 coupling e-caps. Replace those and you'll be on another level. I suggest Visay MKT1822 3.3uf (63v or 100v) will be an excellent choice.

Check the fuse, if it is 1A, replace it with 4~5A.

The decoupling for the poppulse is not the best. And for the life of me, I don't know why there are no regulation of the +/- 35v and that the e-cap is removed just next to the chip. There are only an Elna 4700uf + 1 smd all the way to the ta2022.
So add a nice > 200uF/35V cap back into that empty cap space next to the chip.

There are a lot more mods that can be done. Later.

I have play with the TA2024 chips before and in my opinion the TA2022 sound better in my system (low efficiency speaker)

I hope this Picture (attachment) works, I am not sure. If not please can anyone explain me how to do ??
Just wanted to show a pic of an vishay cap - maybe chuckT could tell me if they look like these ones because one with 3,3 uF I couldnt find here:
http://de.farnell.com/jsp/search/bro...=gensearch_002|gensearch_002&Ntt=vishay|mkt1822&Ntx=&_requestid= 121115

Can anyone at least submit that they are yellowcoloured and are squared and not round ??

[ChuckT]

Originally posted by TheDealer


I hope this Picture (attachment) works, I am not sure. If not please can anyone explain me how to do ??
Just wanted to show a pic of an vishay cap - maybe chuckT could tell me if they look like these ones because one with 3,3 uF I couldnt find here:
http://de.farnell.com/jsp/search/bro...=gensearch_002|gensearch_002&Ntt=vishay|mkt1822&Ntx=&_requestid= 121115

Can anyone at least submit that they are yellowcoloured and are squared and not round ??

Yes, MKT1822 under the ERO brand before Vishay buy them out.
Mine are green with the Vishay label, I don't know if they will be a difference in sound for the old and new.
I got them from Farnell too, so I think you'll get the green one too.

BTW, if u don't need a lot of gain, it may be possible to bypass the opamp and connect directly the M62429 output to the TA2022 input cap. I think inside the M62429 has opamp out already.
If u don't know what I am talking about, just ignore this.

Also order a couple of Rubycon ZL 470uf/35V to put into the empty 220uf/35V cap space next to the ta2022.

There is a lot more u can do... no time....

[ChuckT]

Originally posted by TheDealer

Thanks chuck for the pic. Much appreciated. This will help.



Maybe another question: I tried Bi-amping with y-cables.
Worked fine till the buzzing which comes out from one amp. I think
this depends on the voltage transformator. Can I compensate it anyway myself ? I think this doesnt have an effect on the sound or ?
Me myself couldnt hear it out in fact.

Don't know.

So how does bi-amp sound? Certain much improve channel separation...

[TheDealer]

Originally posted by ChuckT



Don't know.

So how does bi-amp sound? Certain much improve channel separation...

Hi, just didnt hear long time, but you can hear the increase of performance. Sound more relaxed and more control.

One remotecontrol works for both but sometimes the other one gets +1 - +3 more dB than the other. Better is to steer volume step by step.
Or they have to play together a while. Like dancepartners you know




Hadnt ever thougt that you can mod the this amp so much. I you really sure that we listen another level ? I mean "higher" level

[RaZmaTaZ]

Dealer,

Did you manage to get the caps from Farnell? I'm having problems getting the right specs. I thought I found it last week but now I only see mkt 1822 with 2.2uf/63v or 10uf/100v. Can't seem to find them on RS as well, they too have 2.2uf or 10uf. But RS has the 3.3uf in 250v

ChuckT, will the 10uf/100v be ok? Or the 3.3uf 250v?