[wonjun]

Hello,

this is my first post to Audio Circle. 

I am about 20 years into this hobby, starting back when things like eBay and AudioGon were just starting.

I have evolved quickly into DHT SET amplification and vintage alnico/field coil fullrange drivers in open back cabinets.
On the other hand, I run strictly digital, starting with CD playback but now only PC fi (JPLAY, Fideliizer, Regen, TotalDAC). 

I hope to learn from other members, especially regarding the latest in PC fi, where things are always moving forward.

Thank you,
David.

[JerryM]

Welcome to AudioCircle, David. 

[bladesmith]

 

[JakeJ]

Hello and welcome to AC, wonjun.

[dB Cooper]

Welcome to the sweet spot

[Phil A]

Welcome!

[ArthurDent]

Greetings & Welcome to AC David     FRM is your/our full range man, I'm sure he can offer some sage thoughts. 

[FullRangeMan]

My suggestion is run tube amps w/Alnico and SS w/ferrite fullranges, too bad field coils are expensive as Alnico.

[wonjun]

Thank you for the welcome, gentlemen!

I just wrote about my system here:
http://www.audiocircle.com/index.php?action=systems;area=browse;system=2326

I welcome any suggestions!

I'm also posting some photos below (systems page didn't allow photos).

David.

[FullRangeMan]

Impressive field coils, how they sound?
They are expensive?
Fantastique system, vintage speakers are great, congratulations.

[wonjun]

Some system description below:

PC-Fi Front End
1. HP Elitebook --> TotalDAC D1 USB --> Uptone Regen (powered by Uptone JS2) --> H-CAT x9 DAC
2. HP Elitebook --> TotalDAC D1 USB --> Uptone Regen (powered by Uptone JS2) --> Sonicweld HR2 USB to S/PDIF converter --> Concert Fidelity DAC-040BD (digital section battery powered)

Amplifier
*Oberton SV572-3 DHSET (Directly Heated Single Ended Triode) integrated amplifier.
*A low-volume custom build in Russia.  6SL7 Input/5U4G Driver/SV572-3 Output. 
*Roughly 100 lbs. 
*Completely dual mono, except power cord. 
*Bought from Ebay from a Russian Canadian gentleman, who bought it in Russia and few it over personally. 
*Very open sound with a huge soundstage and a live tone -- not really euphonic.

Speakers
*Middle frequency: Open-back guitar cabinets housing 1930's Blaupunkt 12" fieldcoil speakers (w phenolic spiders) run full range, with field coils powered by Lambda LQ 533 power supplies.
*High frequency: Open back guitar cabinets housing Rullit Silver Lab 10 (10") modified german fullrange driver with Alnico magnet and phenolic spiders, 1st order high pass crossover using a pair of Mundorf Silver Oil 8.2uf caps.
*Very High Frequency: Townshend Supertweeters
*Bass: A Pair of Gallo TR-3D subwoofers run fullrange or a single Genesis G-928 subwoofer

Cables:
*Speaker Cables: DIY: 1" wide 3M copper tape wrapped by 2" cotton tapes. Both fullrange drivers and the subwoofers are connected at speaker level.
*Interconnect: Silver wires directly crimped to component RCA terminals using DIY tubings.  No RCA connectors.
*Power Cords:
Omega Mikro LCX Active 30W Red on DAC
Verastarr Grand Illusion on SET amplifier
Tel Wire Cord on Uptone JS2
Acoustic Zen Tsunami cords on the Gallo subwoofers
Verastarr Grand Illusion on Genesis subwoofer
Mapleshade Double Helix Mk1i PLUS power cords on the Lambda field coil supplies

*Power Conditioners:
(1) Weizhi PRS-6 powering all components, including Mapleshade power strip
(2) Mapleshade Double Helix Mk2i Powerstrip with Plus Upgrade powering the field coil supplies (makes a big difference!)

[JakeJ]

Wow!  Really impressive system, David.  Would love to hear it.

[FullRangeMan]

Thanks for inform David.
The best speakers stands are real wood indeed

[wonjun]

Thank you for the comments! 

If you are ever in Phoenix area, please let me know.  You're welcome to hear the system.

David.

[FullRangeMan]

  Thanks a lot you most kind.