how can I get DSD signal from my Sony SCD5400 ES

1. There is no such thing as a DSD analog signal. DSD is only digital, so you probably mean an analog signal converted from DSD without an intermediary conversion to PCM.

2. Most AVRs will do the D/A but few will avoid the PCM intermediary.

3. I know of no DACs that will accept HDMI and DSD.

Kal

The 5400ES has a pretty highly rated DAC built in. You can just run the analog outputs to your headphone amp. Any SACD you play will have the DSD material decoded internally to the analog outputs.

I would like to use the DSD DAC to improve the sound quality. I have seen the specification of the Sony TA DA5400 ES that have the DSD DAC via HDMI (32bit DSD-DAC conversion and HATS (High quality digital Audio Transmission System) for HDMI.
Read more at http://www.itechnews.net/2008/08/29/sony-ta-da5400es-and-ta-da3400es-av-receivers/#8dUX6zMhlHk85iX3.99

but I would like to know how can I get the analog signal from that Sony TA DA5400, can I get it from the two front channel of analog output, any preout?

I also saw one of the audiobyte Hydra X that use I2S, HDMI
for DSD but I don't know whether it can decode the DSD from Sony SCD 5400ES or not? probably not now but in the near future.
http://www.audiobyte.ro/
16.06.2013 - A few important upgrades regarding Hydra-X usb interface:
- native ASIO is now supported by Hydra-X. You can go to the product page and download the ASIO package.
- DSD over PCM (DoP) support is now enabled on S/PDIF and AES/EBU outputs. DSD64 and DSD128 rates are supported.
- DSD256 and DSD512 native dsd output is now enabled via I2S/HDMI output (via ASIO driver).

Sorry if I use the term incorrectly and for my language use. Just want to improve the SQ of this Sony 5400 SCD

thanks so much for the input