SOAP MKIII (Simple OpAmp Pre) With onboard PSU - Page 19 - diyAudio
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Old 21st March 2009, 09:30 PM   #181
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@Stream
You got PM
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Old 21st March 2009, 09:56 PM   #182
Stream is offline Stream  Russian Federation
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Pacificblue,
PM? Havn't any new PM...
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Old 22nd March 2009, 01:54 AM   #183
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Quote:
Originally posted by Tripmaster
For me...improving the quality of the in/output caps gave the most noticeable improvement.


http://www.diyaudio.com/forums/showt...16#post1672816

exactly but start with the regular one first such as the wima then gradually to more expensive and so called audiophile cap to hear improvement.....

good replacement for the opamp is just go for discrete type...

finish mine but put on halt for a while.....

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Old 22nd March 2009, 06:31 AM   #184
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Quote:
Originally posted by Stream
Pacificblue,
PM? Havn't any new PM...
I used the e-mail button in your last post already twice. I'll try again now. If you don't receive anything, check, if your e-mail address is spelled correctly in your profile.
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Old 24th March 2009, 01:30 PM   #185
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Quote:
Originally posted by pacificblue

I used the e-mail button in your last post already twice. I'll try again now. If you don't receive anything, check, if your e-mail address is spelled correctly in your profile.
Hmm.. I checked profile - it's ok, and some other Users wrote PM's through this forum to me.

P.s. I recieved one strange mail from "mountain@..." recently, but I think it's not You, right?

Plz try manualy to mxs.stream @ gmail.com
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Old 2nd April 2009, 05:26 PM   #186
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I,m putting the final touch on a "new" version of the SOAP and i am going to order a few boards.

I,ll post some more info when time is......

Changes are small and will mostly be to match parts to a specific partnumber on Farnell or mouser or something..
Also transformer onboard is considered... (not decided on this yet though)
The regulators will be standard 7815/7915 to even more reduce cost and number of parts. (No change in sound)
Input cap is on the loose.. (No final desicion on this either yet)

Suggestions are of course welcome..

Later

/JZ
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Old 27th April 2009, 02:36 PM   #187
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In progress...
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Old 27th April 2009, 02:54 PM   #188
troystg is online now troystg  United States
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If you are going to have them professionally made go double sided!..

Cost is usually the same but much better layouts possible and can be compacted.

Will you offer any PCB's for sale when completed?
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Old 27th April 2009, 05:49 PM   #189
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Quote:
Originally posted by Stream
In progress...
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Hey Stream,

They looks really good man. Ive wanted a PCB for the SOAP for a while, any chance you can make me one?
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Old 28th April 2009, 07:47 PM   #190
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Hi.

Mike, yes, it's possible, I just need to buy more pcb...

Here is my SOAP, its almost done.. Just need to add pots and adjust voltages.

Btw, I changed three values (according to parts, which was in by box...)
1. LM317 - resistor from 120 to 160R.
2. Input RC - resistor from 15k to 20k.
3. small capacitors - from 100nf to 68nF.

As I understand these replacement are safe, right?

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