[T.IIZUKA]

Sorry, HO=Headphone Out !

 
Quote:

Again.....are these improvements to the DAC section or primarily the HO? I realize the new power supply would likely help the DAC as well but where are the most significant changes made? Thanks

 
Power supply is the entire thing. 
 
 
Quote:

 

 
Hello again,
I`ll start from top to botton:
 
- 1ppm TCXO (temperature-compensated crystal) is installed. <-DAC
- OFC Toroidal custom replacement. <-DAC
- Generic capacitors Nichicon HD, Rubycon MBZ, Rubycon ZLG upgrade to high-quality capacitors and for sound. <-Mostly if not only Headphone Out (HO).
- Upgrade to a general resistance to high-quality resistance. <-DAC
- Two sets of Rectify-IC (8pcs) to upgrade. <-DAC
- OP275 x 3  to AD8599 × 3. <-DAC
 
The only thing I would like to see is a socket for the OP-amps so that it is possible to change them according to preference. I wont pay that much money for these mods though, since I have my own "improvements" in mind. Most are tje same, but not enough to be willing to pay twice the amount the unit costs for a modded product when the major cost seems to be the "manhours".

- OFC Toroidal custom replacement. <- ALL (DAC & Headphone Out)
- Generic capacitors Nichicon HD, Rubycon MBZ, Rubycon ZLG upgrade to high-quality capacitors and for sound. ALL (DAC & Headphone Out)
- Upgrade to a general resistance to high-quality resistance. ALL (DAC & Headphone Out)
 
 
Quote:

I don't use the headphone amp section for anything critical, but would like to know if these mods represent worthwhile upgrades to the DAC section as well.

 

It is difficult to execute all of this Option. 
I think that strengthening the power supply and the change such as Phillips to the capacitor are effective. 
 
 
I think that OP275 is an output to analog-lineout steps. 
What role will OPA2134 do?
Please teach what you do. 
 

 

 

[jtam]

LOL, you guys found that!
 
PM me...

 
Quote:

Japan's auction site has also remodeled out.
 
Yahoo! Auction (Japan)
http://page11.auctions.yahoo.co.jp/jp/auction/n86961317
 
Default

 
Modified
 
Option Price JPY32,000 (about $400!)
 
- 1ppm TCXO (temperature-compensated crystal) is installed.
- OFC Toroidal custom replacement.
- Generic capacitors Nichicon HD, Rubycon MBZ, Rubycon ZLG upgrade to high-quality capacitors and for sound.
- Upgrade to a general resistance to high-quality resistance.
- Two sets of Rectify-IC (8pcs) to upgrade.
- OP275 x 3  to AD8599 × 3.

 

[jtam]

They got two versions, difference is the toroidal PSU, OFC and OCC. Different prices of course.
 
Quote:

Japan's auction site has also remodeled out.
 
Yahoo! Auction (Japan)
http://page11.auctions.yahoo.co.jp/jp/auction/n86961317
 
Default

 
Modified
 
Option Price JPY32,000 (about $400!)
 
- 1ppm TCXO (temperature-compensated crystal) is installed.
- OFC Toroidal custom replacement.
- Generic capacitors Nichicon HD, Rubycon MBZ, Rubycon ZLG upgrade to high-quality capacitors and for sound.
- Upgrade to a general resistance to high-quality resistance.
- Two sets of Rectify-IC (8pcs) to upgrade.
- OP275 x 3  to AD8599 × 3.

 

[Ph1lerAudi0]

I wholeheartedly agree, enthusiastically

Quote:

It would be nice though if Cool Fun Gadget or someone had an upgrade program for original Mini-i owners.

 

[T.IIZUKA]

Hi jtam & All,
 
 
Matrix mini-i used in one week has passed.
I use the DAC mode.
I do not use the Headphone modeThe sound is good. 
 
The habit is not a good thing.
It a great product. However, there are several questions.
 
 
 
A few Questions.
I want answers.
Forumu impossible then? PM fine, but of course.

 
 
Q1. OP275 Analog output stage has three. (OP3,4,5)
 
  One analog OUT, because the two balanced outputs.
  Full Balance if it is thought that this configuration.
 

 
 
Q2. OPA2134UA What are you using for what? (OP1,2)
 
  I think that it has received AD1955 output.
  Lowpass filter do it?
 

 
 
Q3."Nichicon FW" seems to be a serious effect.
  "Nichicon KW" I thought to vary greatly and exchange.
 

 
 
Q4.  I understand this good?Driving voltage of the circuit inside you know?
 
  "Nichicon HD 25V2700uF" in GND and was 13.83V.
 


 
Good product, so I have posted a Blog.
The order is expected to increase from Japan.

 
Japanese-text Only
http://tiiduka.blogspot.com/2010/10/matrix-mini-i-2.html
http://tiiduka.blogspot.com/2010/10/matrix-mini-i-3-ac120v2.html
 
Quote:

 

 

[fredhammersmith]

Quote:

Make sure you get bit perfect playback (asio, kernel streaming or wasapi) so windows mixer does not get in the way and/or have the volume in windows set to 100 percent.

What media player do you use?

I have the Matrix Mini for testing. It is a great unit. But do I need to install drivers for kernel streaming?
I use XP Pro SP3 and USB output (for now). Kernel Streaming is not outputting any sound, I had to switch to DirectSound.
My media player is JRiver MediaCenter v15.

 

[Hellenback]

Quote:

I have the Matrix Mini for testing. It is a great unit. But do I need to install drivers for kernel streaming?
I use XP Pro SP3 and USB output (for now). Kernel Streaming is not outputting any sound, I had to switch to DirectSound.
My media player is JRiver MediaCenter v15.

 
On XP SP3 I use Foobar and ASIO4All or an M-Audio Audiophile USB (separate driver install) to SP/DIF (rca/BNC) for hi-res 24/96 audio. With MediaMonkey you get native 24/96 over SP/DIF. JRiver can likely be configured with ASIO4ALL (if it doesn't have it's own ASIO driver). I think it also has native 24/96 decoding.
 

 

[fredhammersmith]

Thanks Asio4All did the trick!

 

[T.IIZUKA]

 
Inside View.
 
 

 
 
Controller -  MICROCHIP PIG16G193 (8 CMOS bit microcontroller)
http://ww1.microchip.com/downloads/en/DeviceDoc/41364D.pdf
 
USB Audio interface - C-media CM102S
http://www.cmedia.com.tw/ProductsDetail.aspx?C1Serno=25&C2Serno=26&C3Serno=0&PSerno=17
 
Digital Audio Interface Receiver -  AKM AK4113VF
http://www.asahi-kasei.co.jp/akm/japanese/product/ak4113/ak4113.html
 
DA converter  Analog Devices AD1955ARS
http://www.analog.com/jp/digital-to-analog-converters/audio-da-converters/ad1955/products/product.html
 
Headphone Amp - TI TPA6120
http://focus.ti.com/docs/prod/folders/print/tpa6120a2.html
 
OPAMP two categories.
 
OP1 and OP2  - TI (BB) OPA2134UA.
http://focus.ti.com/docs/prod/folders/print/opa2134.html
 
OP3, OP4, OP5 - Analog Devices OP275
http://www.analog.com/jp/amplifiers-and-comparators/precision-op-amps/op275/products/product.html
 
Read more here.
http://tiiduka.blogspot.com/2010/10/matrix-mini-i-4.html

 

[T.IIZUKA]

My Matrix's Matrix.
 

 

[fredhammersmith]

I have a tricky one for you.
I am testing the Matrix and love the results. And the price is so cheap that I am considering bi-amplification.
Is there any way that I can get two SPDif signals out of a computer, feed two Matrix with it and then feed a multi-channel amp, and be perfectly sync?
How can I synchronize all that and not add jitter and unwanted effects?
 
Right now, I use a wonderful stereo S30 Atma-Sphere OTL amp, but the previous owner love bi-amp so much he really thinks I should follow this path. And I must admit I am very curious.

 

[Ph1lerAudi0]

Wow TIIZUKA! You are absolutely entrenched with your Matrix!
 
One question: How come your mac is limiting its toslink output to 24/48 when it can do 24/96? It looks like you may be limiting everything to 24/48 actually.
 
 
Also, for the 1st time last night I listened to my matrix in straight dac mode. Oh my God. The headphone amp needs to be modded. The matrix really sings in straight dac mode. 
 
PA

 

[T.IIZUKA]

 
Quote:

 
One question: How come your mac is limiting its toslink output to 24/48 when it can do 24/96? It looks like you may be limiting everything to 24/48 actually.
 

 
24/48 reasons.
KENWOOD KAF-A55 is because until 24bit 48kHz.
 

 

 
Full Digital processing.
 

 
 
KAF-A55's Spec (Sorry, Japanese-text only)
http://www.kenwood.co.jp/products/home_audio/desktop/prodino/spec.html
 
Using Analog Input 24/96 but there is no problem.
 
"Lovely Cube" arrive soon.
I'm considering switching to low price power amplifier. (Digital amplifier)
 
[size=medium]

Quote:

Also, for the 1st time last night I listened to my matrix in straight dac mode. Oh my God. The headphone amp needs to be modded. The matrix really sings in straight dac mode. 

 
I think so too. 
 
I use the products DAC with a digital selector.
If remote control is attached, it is highest !! 

​

[/size]

 

[grokit]

 
Quote:

I have a tricky one for you.
I am testing the Matrix and love the results. And the price is so cheap that I am considering bi-amplification.
Is there any way that I can get two SPDif signals out of a computer, feed two Matrix with it and then feed a multi-channel amp, and be perfectly sync?
How can I synchronize all that and not add jitter and unwanted effects?
 
Right now, I use a wonderful stereo S30 Atma-Sphere OTL amp, but the previous owner love bi-amp so much he really thinks I should follow this path. And I must admit I am very curious.

Don't you mean dual-mono? I believe bi-amplification is for speakers. If this is the case the trick would be to figure out if the Mini-i can output mono sound or could be modded to do so but I think the gains if any would be minimal.

 

[fredhammersmith]

Quote:

 

Don't you mean dual-mono? I believe bi-amplification is for speakers. If this is the case the trick would be to figure out if the Mini-i can output mono sound or could be modded to do so but I think the gains if any would be minimal.

No, I mean bi-amp.
Using a software like Audiolense or a Motu for DRC and electronic XO, then feed a DAC stage, then 4-channel power amp, then speakers.