[Soekris discrete R2R DAC?]

I bought a trendnet USB-RS232 from amazon, it works well with soekris's R2R.

With new firmware and NOS filter, Ive be able to do all the conversion and upsampling with my HQplayer.

The bass is back although still not quite perfect.

Also running in NOS reflects filter changes in HQplayer very well.

[Soekris discrete R2R DAC?]

Just swapped out the digital filter on my DAC. I consider it to be a must! So far the best one for me was MB1 by TNT on DIYA.

What kind USB RS232 did you use?

Mine from adafruit doesnt seem to get the job done right.

[Soekris discrete R2R DAC?]

Got mine running yesterday with xmos usb-i2s, sslv +/- 12 PSU and stock firmware (still waiting for my usb-serial to arrive).

My first impression is this DAC has really clear sound, decent treble and mid. Yet the soundstage isn't very deep and the bass is not adequate. 

My comparison is based on the same amp and headphone and comparing r2r to my forssell mdac-2

[Soekris discrete R2R DAC?]

I have ordered mine yesterday.

0.02% version. It seems to be a good fit for my office rig.

[KG Balanced Dynahi build discussion thread]

I'll post pics as I go.

 

another chassis I was considering: http://www.ebay.com/itm/Class-classis-aluminum-chassis-430-150-310-radiator-can-separate-box-new-/251761309403?pt=LH_DefaultDomain_0&hash=item3a9e24b6db

[KG Balanced Dynahi build discussion thread]

Try this:

 

looks like my 2sc2705/2sa1145 are good enough, Ill get another batch of 2sc3421 for better match.

 

Also Im planning to use diyaudio 4U case, would you mind to share your design after you ve finished?

 

Thanks

[KG Balanced Dynahi build discussion thread]

transistor matching questions:

 

Are 2sc2705 and 2sc1145 the only pair I have to match between NPN and PNP?

And I only need to match NPN to NPN and PNP to PNP for others.

 

Also, how close should i match the Hfe of 2sc3421 and 2sa1358?

 

Thanks.

[kgst]

No.

enough current too much voltage?

[kgst]

can this amp used to drive taket h2+?

[The Multi Amp aka Dynalo Mk2]

Thanks.  Is anyone doing a board run?  I'd like to piggyback on for two pairs.

I'd like to piggypiggyback for two pairs.

[Group Buy for KG's Boards (2nd)]

lil knight contacted me today. We are working on the problem.

[Group Buy for KG's Boards (2nd)]

^ Curious. Had you heard back from lil knight before you sent the money? Or did you just send it...

Me? yes

We talked via PM to figure out the stock, the shipping to US and the total amount.

[Group Buy for KG's Boards (2nd)]

Sent my money in Nov 11 for one set of ksa 5. No news after that.