Head-Fi.org › Sapientiam's profile
|Forum Post Count:
||7 hours, 1 minute 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
Thoughts on a bunch of DACs (and why delta-sigma sucks)
Sapientiam posted in this thread in Dedicated Source Components 4/15/15 at 1:03am | 4205 replies | 363549 views
Mini Dac TDA1543 X 4 NOS
Sapientiam posted in this thread in Dedicated Source Components 4/12/15 at 10:14pm | 953 replies | 217636 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 | 4 replies | 128 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 | 133 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 | 40242 views
Using Computer PSU for DAC
Sapientiam posted in this thread in Dedicated Source Components 1/20/15 at 4:50pm | 8 replies | 390 views
Hi-fi audio signal chain -- no more sigma-delta
Sapientiam posted in this thread in Sound Science 1/19/15 at 9:33pm | 109 replies | 3367 views
Metrum Acoustics Octave
Sapientiam posted in this thread in Dedicated Source Components 10/25/14 at 6:39am | 697 replies | 82303 views
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 | 173 views
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