Head-Fi.org › Sapientiam's profile

Sapientiam

Location:

Hangzhou, PRC

Forum Post Count:

362

Join Date:

8/16/09

Last Online:

4 seconds ago

About Me:

Disruptive innovator in digital audio using ARM Cortex M-series and cheapo multibit DACs.

Interests (Hobbies, favorite activities, etc.):

Music, philosophy, engineering, gadgets, teas, curries, gals.

What I do for a living:

Been working most of my time on multibit DAC designs. Rest of time teaching English one-to-one.

Headphone Inventory

Shure E3, E5, Sony MDR-CD3000, Sennheiser HD-420

Headphone Amp Inventory

No separate head-amps, all mine are integrated with multibit DACs. Currently I'm using AD815s but in the past have gone through AD8017 and AD8016.

Source Inventory

SD card players (QA550 and Taobao-sourced one using STM32F407) feeding homemade multibit DACs (TDA1545A, TDA1387) with massive cap arrays on the supplies and LC anti-image filters. I use old DVD players for S/PDIF sources.

Cable Inventory

Not a believer in cables hence none to speak of. Doesn't mean I don't believe in cable sound though - just that it should be taken out of the equation by other means than by rolling cables.

Power-Related Components

Own designed wideband mains filters using air-cored steel inductors.

Other Audio Equipment

M-Audio 24/96, Asus DX & Essence ST, Creative X-Fi extreme music, Fayou active XPE, 08 and ArtMasters, B&W CM1s, Hivi D1010s and D1080 MkIIs, 2 Xindak integrated amps, extensive mods to PSUs and grounding. Heavily modified 3Nod desktop monitors. Paiyon passive bookshelf monitors on stands

Audio-Related Tweaks

Mains balancing transformers (1kVA).

Music Preferences

Classical, acoustic rock, world, new age, jazz.

Interests (non-headphone)

Philosophy, piano, psychology. drinking tea, Asian foods and of course, pizza.

Gear-Fi (Favorite Non-Audio Gear & Gadgets)

Kawai GS-30 grand piano, Schimmel upright.

Sapientiam's Recent Activity

settings
(Uncheck the summary view to see ALL the gory details!) (Check the summary view to simplify the activity feed.)
Schiit Yggdrasil Impressions thread
Sapientiam posted in this thread in High-end Audio Forum 5/19/15 at 10:51pm | 134 replies | 13649 views
Tiny DAC, Big Sound, Evolved – Stoner Acoustics UD100 / UD110 / UD120
Sapientiam posted in this thread in Dedicated Source Components 4/27/15 at 9:12pm | 1092 replies | 175653 views
Do I need a DAC that can handle more than 16bit music files?
Sapientiam posted in this thread in Dedicated Source Components 4/25/15 at 5:01pm | 16 replies | 320 views
First DAC please Help! (Sub 80$) - Can be DIY
Sapientiam posted in this thread in Dedicated Source Components 4/21/15 at 6:30pm | 33 replies | 559 views
Mini Dac TDA1543 X 4 NOS
Sapientiam posted in this thread in Dedicated Source Components 4/12/15 at 10:14pm | 953 replies | 221150 views
What kind of DACs and amps are used in monitors and TVs?
Sapientiam posted in this thread in Dedicated Source Components 3/25/15 at 7:17pm | 6 replies | 188 views
How do I find what DAC is in my Macbook Pro?
Sapientiam posted in this thread in Dedicated Source Components 2/14/15 at 6:00pm | 2 replies | 165 views
Circuit error in Lite DAC-AH: Easy fix
Sapientiam posted in this thread in Dedicated Source Components 2/9/15 at 12:09am | 210 replies | 40757 views
Using Computer PSU for DAC
Sapientiam posted in this thread in Dedicated Source Components 1/20/15 at 4:50pm | 8 replies | 460 views

 

Sapientiam’s Photos

Default
13 photos
613 views
Latest upload: Apr 25, 2014
Avatars
4 photos
302 views
Latest upload: Apr 27, 2014

Sapientiam’s Embedded Photos

Sapientiam's photos in Ranking of 17 DACs and DAC Configurations
2 photos
72 views
Latest upload: Mar 15, 2015
Sapientiam's photos in December 2013 Mid-Level DAC Comparison
1 photo
45 views
Latest upload: Jan 9, 2014

Sapientiam's Lists

0 Lists
No lists.

Head-Fi.org › Sapientiam's profile