[kiteki]

Originally Posted by LaRzZa /img/forum/go_quote.gif
 
Thanks kiteki, I saw your discovery of the CM6631 USB to Coaxial Optical SPDIF I2S convertor in another thread and it looks interesting so probably I buy it next year.  

 
Happy listening girl!

 
Yes, I'm considering it too.

 

[bsoontan]

4 weeks after getting the Fire-Pheonix 05 and replacing the stock op-amps. I am still getting random drops of sound which are replaced with static like noise followed by a click eminating from the FP 05. The click would repeat a few times then the sound will come back. The random drops of sound are really annoying. Anyone have any idea why the unit is doing this? BTW I am feeding it via Optical.

 

[geetarman49]

Quote:

4 weeks after getting the Fire-Pheonix 05 and replacing the stock op-amps. I am still getting random drops of sound which are replaced with static like noise followed by a click eminating from the FP 05. The click would repeat a few times then the sound will come back. The random drops of sound are really annoying. Anyone have any idea why the unit is doing this? BTW I am feeding it via Optical.

one way to check is to replace your source with something else ... like a dvd player - most of them have optical outs.  connect the dvdp to your fp-05 via optical and play a standard music cd.  do you still experience the dropouts and noise?  if you do, then the issue is likely with the fp-05; if you don't, then you need to check your original source ... perhaps you need to optimize some settings for digital playback.
 
also check the condition/quality of your optical cable.

 

[bsoontan]

Thanks for the reply. I did try the different optical outs from my PC motherboard and my soundcard and both of them experience the dropouts. I also thought changing the cable would help but I did try various optical cables that have been working all the while so it looks like the FP-05 is the problem sigh... It really does makes the HE-500 and SA-31 sound livelier albeit a bit harsh and bright at times but details still there. It looks like I have to save up for that SA-1.32.
 

 

[kiteki]

Hmm, it says $909 USD + shipping.
 
 
In that price class, here is a new DAC from Korg, it sold out all over Japan ---- http://www.amazon.co.jp/KORG-1Bit-USB-DA%E3%82%B3%E3%83%B3%E3%83%90%E3%83%BC%E3%82%BF-DS-DAC-10/dp/B009YD4NVQ

 

[geetarman49]

limited edition, japan only .... sold out 

 

 

[kiteki]

limited edition, japan only .... sold out 

 
where do I send my money.

 

[geetarman49]

Quote:

 
where do I send my money.

well, you could send $$ to me

.   oh wait ... you mean for the korg?  i wish i knew ... maybe you could try contacting todd at m.a. recordings.

 

[cel4145]

Quote:

Thanks for the reply. I did try the different optical outs from my PC motherboard and my soundcard and both of them experience the dropouts. I also thought changing the cable would help but I did try various optical cables that have been working all the while so it looks like the FP-05 is the problem sigh... It really does makes the HE-500 and SA-31 sound livelier albeit a bit harsh and bright at times but details still there. It looks like I have to save up for that SA-1.32.
 

 
Just curious. Did you try the USB? 

 

[bsoontan]

Nope, the USB doesnt allow 24/96 or 24/192.
 

 

[rickdohc]

Quote:

I will just say it. You guys with the Fire Phoenix. Do what it is you have to do to get this op amp. http://www.ebay.com/itm/260948692896?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649    Seriously. This sound I am hearing after installing this. You guys think your stock Fire Phoenix sounds good stock..Lol. Worth every cent to open then replace op amp to LT1028.

 
 
Funny how this FP is using the same Op amp found in this cheapo $20.00 amp, Lepai Thripath.   http://www.amazon.com/LP-2020A-Lepai-Tripath-Class-T-Amplifier/dp/B0049P6OTI
Dont laugh guys, its cheapo but sounds very nice and i am using it for my TV with some Dayton Speakers.
 
So i am gonna order two pairs of this LT1028, one for the FP and one for the Lepai,  DS could you please take a picture to see how this doubl thing goes on the board?   what i need to see/understand is how this "double" goes on the board. i need to buy two pairs of these "doubles" op amps?  
 
one set/a pair of LT1028 replaces one oem opAmp???  For example, the Lepai uses 2 opamps, i need to buy 2 pairs of these LT1028?
Thanks
 
thanks

 

[kiteki]

You'll find that op-amps come in
 
- monolithic (mono)
- dual (stereo)
 
You'll also find mono to dual converters.  The L1028 chip is mono, the JRC4556 is stereo, so in a stereo socket, you have to use a mono to dual converter for mono chips.
 
The LT1028 is an unusual chip, it's not very 'safe' like NE5532 which will sound fine in pretty much any circuit.

 

[rickdohc]

Quote:

You'll find that op-amps come in
 
- monolithic (mono)
- dual (stereo)
 
You'll also find mono to dual converters.  The L1028 chip is mono, the JRC4556 is stereo, so in a stereo socket, you have to use a mono to dual converter for mono chips.
 
The LT1028 is an unusual chip, it's not very 'safe' like NE5532 which will sound fine in pretty much any circuit.

Thanks for the info man!   Tyring to learn more about all this stuff.
Yea, i am using that NE5532 on my Lepai,  so do you recomend trying that NE5532 on the FP?  any other Op-amps recomendend?

 

[Dsnuts]

You see how I have the chip.. It takes more work to take off the hood of the Fire Phoenix than replacing the chip.. Save this photo on your desktop and you are golden. Just wiggle that stock chip out of the socket and then replace with the LT1028. Also. I would just get one for now as these chips are kinda tall meaning it didn't fit on my HA-Info dac/amp.  It fit the socket on that unit but I couldn't close the lid as it was sticking out too much. 

 

[rickdohc]

ok. thanks... waiting ...