Article: Understanding Digital Audio Measurements
Very nice Article – Understanding Digital Audio Measurements on website Audio Science Review
Category: Measurement
TDA 1541a 1 µF vs 100 nF on MSB
Some Measurement with 1 µF vs 100 nF some say it sounds better . Tested on staggered TDA1541a Board with 1µf on MSB Multitone -20 dBfs – spectrum 20 – 96 kHz Red 100...
Sound decoupling caps TDA1541a
After reading A Monolithic Dual 16-Bit D/A Converter IEEE JOURNAL OF SOLID-STATE CIRCUITS, VOL. SC-21, NO. 3, JUNE 1986 HANS J. SCHOUWENAARS, EISE CAREL DIJKMANS, BEN M. J. KUP, AND ED J. M. VAN...
Grundig DEM modification Adapter
Small handy grundig DEM modification adapter board Original DEM clock signal Grundig DEM , DEM-FREQ sync aan Wordclock 176.4 kHZ 16 Bit unditherd Silence Original DEM vs Grundig DEM Clock 10 Hz – 20...
Measuring SAA7220 / TDA1541 O.S. vs N.O.S.
Source Digital in 16 bits undithered frequentie. sweep 20Hz to 20kHz , AES 17 filter, output level in No OverSampling is 1 dB more, and has a rolloff -3dB at 20 kHz Level NOS...
CD 650 Filter output
Measured the filtered output CD650 Sweep 10 – 20 kHz , 0 dBFS AES17 White Noise
Transformer I/V TDA1541A s1
Een Marantz CD94Mk2 ter reparatie met twee trafo’s, Ik denk SOWTER TYPE 1465 https://www.sowter.co.uk/specs/1465.php SOUND IMPPROVEMENTS USING DAC TRANSFORMERS The sound quality of almost any commercial CD player or digital music systems can be improved by...
Marantz CD94 Mk2 Grundig DEM modificatie
Silence Un-dithered FFT 10 Hz – 22 kHz Blue = CD94 Mk2 Red = CD94 Mk2 + Grundig DEM Modification
S/P-Diff Reciever in DIY DAC
J-Test with CS8412 1m Coax 75 Ohm = 762 pico 5m Optical = 762 pico WM8804 with xtal 1m Coax = 125 pico WM8804 with xtal 5m optical = 125 pico WM8804 with...
CDA 94 highend DAC mist low end
Opzoek naar het Low-End 🙂 in de highend DAC, dit is 1 van de foutjes , en zijn er nog meer 🙁 C504 en C503 beide 100 Uf zijn vervangen door MKT van...