Head-Fi.org › Sapientiam's profile
|Forum Post Count:
||1 day, 13 hours ago
||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.
||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.
||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.
||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.
||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
||Mains balancing transformers (1kVA).
||Classical, acoustic rock, world, new age, jazz.
||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
DAC performance using USB power Vs. dedicated power supply
Sapientiam posted in this thread in Portable Source Gear 6/2/14 at 6:34pm | 2 replies | 71 views
Hifiman is looking for the Amp designer
Sapientiam posted in this thread in Head-Direct Premier Sponsor Forum 5/20/14 at 8:23pm | 46 replies | 3366 views
Portable DACs vs Desktop DACs
Sapientiam posted in this thread in Dedicated Source Components 5/20/14 at 5:37pm | 10 replies | 401 views
Ranking of 21 DACs and DAC Configurations (and why chocolate ice cream must die)
Sapientiam posted in this thread in Dedicated Source Components 5/14/14 at 9:28pm | 1031 replies | 99044 views
Am I Wasting My Time Searching for a DAC?
Sapientiam posted in this thread in Dedicated Source Components 5/14/14 at 4:59pm | 26 replies | 1074 views
Next step up from ODAC?
Sapientiam posted in this thread in Dedicated Source Components 5/14/14 at 4:00pm | 40 replies | 4974 views
Chameleon DAC listening and modifications
Sapientiam posted in this thread in Dedicated Source Components 4/27/14 at 9:58pm | 1130 replies | 104456 views
PONO - Neil Youngs portable hi-res music player
Sapientiam posted in this thread in Portable Source Gear 4/11/14 at 5:34pm | 1026 replies | 76400 views
Analog to digital converters?
Sapientiam posted in this thread in Dedicated Source Components 2/9/14 at 5:06pm | 5 replies | 132 views
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