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iBasso OEM Project - Page 12

post #166 of 497
I'm saving my pennies

Let us know when 2nd batch is ready for orders
post #167 of 497

2nd batch

Quote:
Originally Posted by ryuzoh View Post
Second, the parts will be more higher graded like below OPAMPs and caps.

It is estimated to become around $320 in normal (AD712JN + x3 BUF634Ps),
caps are MUSE FW 10000uF/16V, MUSE KZ 47uF/25V, Elna Silmic2 47uF/25V.

Clear version (x2 634s in L/R channel, P & U) will be around $360 w/ AD797AN,
caps are MUSE FW 10000uF/16V, UTSJ's 100uF/16V, MUSE KZ 47uF/25V, Elna Silmic2 47uF/25V, MUSE ES 47uF/16V.

Soundstage version (x4 634s in L/R channel, 2x P & 2x U) will be around $430 w/ OPA627AP,
caps are UTSJ 10000uF/16V, UTSJ's 220uF/16V, MUSE KZ 47uF/25V, MUSE KW 47uF/16V.

This is just under planning, but I'll make effort to maintain this price.
Unfortunately, I couldn't list 1st batch.
But this is good news for me.
I'll look forward to second batch!
post #168 of 497
Quote:
Originally Posted by ryuzoh View Post
Hi all,

I'll soon receive final prototype and some enclosure samples

The parcel's ETA will be in next tuesday.
And with some additional goods.

John, I'll ship blackgate version and my modded HA-5002 buffer chips (gift for you).
Also, your requests are approved... attached bypass caps are 0.47 BG NX Hi-Q/50V.

P3+ and D10 DAC (WM8740 version)


The P3+ will equip TLE2426ILP for rail-splitter.
And, pots are ALPS's RK097 (They could be supplied them by this project)
Caps are Nihicon's HZ (w/ normal connection, not a bi-polar connection).
I heard they will provide some additional options (currently confidential).

D10 DAC won't be in their products, and I'm going to establish company that provides amps I planned (mainly their OEM).
I'll receive CS4398 version DAC soon
It's sounds very nice!
I use D10 only for DAC.
And,CS4398 DAC without AMP is Dream for my PHPA life
post #169 of 497
Quote:
Originally Posted by gonta90 View Post
Unfortunately, I couldn't list 1st batch.
But this is good news for me.
I'll look forward to second batch!
Me too
And I want to make it Maxxed version,like Xin's AMP If It's possible.
post #170 of 497
Quote:
Originally Posted by ryuzoh View Post
I'm planning to add newer one after this fi.Q and the DAC will debut.
-snip-
How about a D10+, combining an improved DAC from the D10 and an amp similar to the P3+ (or better), in the same D10 size?

I mean, if my wallet's going to truly take a hit, why not go down in a blaze of glory?

post #171 of 497
Today, we had a meet.
And I had opportunity to see P3+.

All I can say, that's worthy.
Improved in all things.



From above.....mine, friend's, P3+.

New enclosure.
post #172 of 497
I normally go for about 10X the needed wattage for resistors, finding it just sounds better. Looks like you went for about 100X. :^) In a dac I made up for home use, the IV resistors are the nos good tants, not the ones Audio Note UK now has but the good ones from Japan, and I used 2 watt when all that was needed was about 1/8 watt. The sound improved. They are more stable and the thermal changes effect the sound differently.

Did you hear the P3+ from iBasso or your P3+?

Looks like a different attenuator and jacks. So do you have a charge circuit with the rechargeable?
post #173 of 497
I am really looking forward to hearing this amp. Expectations are very high.
post #174 of 497
P3+ on the bottom isn't mine. (because my order must be less priority... I think.)

In my modded P3, the resistors are TAKMAN's audio-graded REY resistors in 1/4W.
Needless to say, my friend's one has RN-55 from Dale.
The P3+ has Dale's CMF and RN-55.

-------I haven't seen your edit.

So, mine and friend's are self-modded from normal P3.
My friend's one has Vishay's P9 50K.
It brings very clearer sound.
(In japan, modding is popular, because easy to obtain audio-graded parts.)
Mine has powerizer's 7.4V lithium cells and rechargeable.
It can realize with smart charger of XM5.
Also, the lithium cells can make room for additional HZ 3300uF.
The P3+ has HZ 2200uF 10V.
post #175 of 497
Yes the Dales are surprising for a metal film resistor. They are well proven. I do like good carbons though.

You have done much work on this and I thank you for what I expect to be improvements in sound. I will "hear" this early next week.

How do you like the Nichicon Muse?
post #176 of 497
The MUSE.... can bring vivid and brighter sound with reasonable price.

-------Quoted from mail I sent before to John
Muse has currently 5 lineups, also requiring very long lead time to order.

KZ(in Black and Gold lettered); supreme class, very speedy and sharp sound, OFC lead
FG(in Gold and Black lettered); fine-gold, mellow and mild sound, OFC lead
KW(in Black and Gold lettered); improved from FW, having very vivid sound, steel lead
FW(in Gold and Black lettered); downsized from FX, clear and worm sound, steel lead
FX(in Green and White lettered); obsolete, very clear and cold sound, OFC lead
ES(in bright Green and Black lettered); bi-polar type, fine solid bass, steel lead
-----------------
They have specific characters in each.
It is interesting to change caps to make your favorite sounds.

The P3+ are consulted from upper 2 modded P3s.
(Additionally, my friend's one has 5 stacked 634Us)
post #177 of 497
Auuuh, my memory. Too many things going around in my head. Sorry, yes what a nice outline on the sound. Well this is nice for everyone to see. :^)

Did you hear any real change in sound after 2 stacked 634's? I found two pretty much did it. How much biasing for the 634's with 5 stacked? A bit of a battery drain or do you use a special power plant, nuclear or have you also implemented cold fusion? :^)
post #178 of 497
That's provided from the sea of Dirac...

Like Xin's 5-stacking, no bias resistors attached.
But it can improve distortions.
If resistors connected, the batteries will overflow electrolytic solution
You can see a trace of it.
The liquid melts copper pattern on PCB, and please do not apply any biasing resistors with more than 2-stacking.
IMO, the limit is 100 ohms with 2-stacking.
post #179 of 497
Quote:
Originally Posted by ryuzoh View Post
The MUSE.... can bring vivid and brighter sound with reasonable price.

-------Quoted from mail I sent before to John
Muse has currently 5 lineups, also requiring very long lead time to order.

KZ(in Black and Gold lettered); supreme class, very speedy and sharp sound, OFC lead
FG(in Gold and Black lettered); fine-gold, mellow and mild sound, OFC lead
KW(in Black and Gold lettered); improved from FW, having very vivid sound, steel lead
FW(in Gold and Black lettered); downsized from FX, clear and worm sound, steel lead
FX(in Green and White lettered); obsolete, very clear and cold sound, OFC lead
ES(in bright Green and Black lettered); bi-polar type, fine solid bass, steel lead
-----------------
Ryuzoh, could you describe the sound of the Silmic 2s and UTSJ caps, for those of us who aren't so familiar with them

Thx,

Jon
post #180 of 497
Quote:
Originally Posted by clasam View Post
Ryuzoh, could you describe the sound of the Silmic 2s and UTSJ caps, for those of us who aren't so familiar with them

Thx,

Jon
Okay, all below are under IMO.

UTSJ(in Silver and Black lettered) is Toshin's audio-grade cap.
It's having very very wide soundstage and slightly vivid, peak in slightly high, steel lead.

Silmic2(in Brown and White/Gold lettered or in Black and Gold lettered) is Elna's highest audio-grade cap.
Gives very sensitive sounds, elegant, sparkle, OFC lead.

Then, I'm going to modd my friend's SR-71A from now.
I'll report when finished.
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