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Sapientiam

Location:

Hangzhou, PRC

Forum Post Count:

296

Join Date:

8/16/09

Last Online:

27 minutes 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

Homemade - using AD8107s, shunt regs and a custom-wound ferrite transformer.

Source Inventory

Pioneer DV-6800A, half a dozen el-cheapo supermarket DVDs used as CD transports, 2 QA550 wav players. Muse X4 DAC, Several home grown DACs on pcbs. 3 heavily modified DAC-AH with TDA1543s replaced by stacked arrays of TDA1545 and TDA1387.

Cable Inventory

Not a believer in cables hence none to speak of.

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

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PONO - Neil Youngs portable hi-res music player
Sapientiam posted in this thread in Portable Source Gear 4/11/14 at 5:34pm | 872 replies | 58401 views
Analog to digital converters?
Sapientiam posted in this thread in Dedicated Source Components 2/9/14 at 5:06pm | 5 replies | 109 views
Do you own a vintage CD player? (pics please!)
Sapientiam posted in this thread in Dedicated Source Components 2/4/14 at 8:07am | 69 replies | 2452 views
Audio-Gd Master 7 - Discrete Fully Balanced DAC (PCM1704)
Sapientiam posted in this thread in Dedicated Source Components 2/3/14 at 4:01am | 1651 replies | 114962 views
Next step up from ODAC?
Sapientiam posted in this thread in Dedicated Source Components 2/2/14 at 12:03am | 38 replies | 4211 views
December 2013 Mid-Level DAC Comparison
Sapientiam posted in this thread in Dedicated Source Components 1/9/14 at 3:22am | 1330 replies | 100486 views
Giant List of sub-$200 portable DACs w/ their chips & price
Sapientiam posted in this thread in Dedicated Source Components 1/2/14 at 10:22pm | 18 replies | 3942 views
Beginner DAC questions
Sapientiam posted in this thread in Dedicated Source Components 1/2/14 at 6:38am | 35 replies | 891 views
Which CD player's DAC is better - BurrBrown 1791ADBR or Wolfson?
Sapientiam posted in this thread in Dedicated Source Components 12/28/13 at 2:45am | 20 replies | 1453 views

 

Sapientiam’s Photos

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Latest upload: May 3, 2012
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12 photos
473 views
Latest upload: May 4, 2012

Sapientiam’s Embedded Photos

Sapientiam's photos in December 2013 Mid-Level DAC Comparison
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22 views
Latest upload: Jan 9, 2014

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Head-Fi.org › Sapientiam's profile