kijanki
Responses from kijanki
| ICE Amps for classical music? Eldartford - I'm not sure if Icepower is sensitive to speaker impedance. By numbers it has even higher damping factor than UCD. Opinion might be just carried over from Tripath where output of the filter wasn't in the feedback loop. Somebody mentio... | |
| Jitter reduction, best device? Mapman "If it works, who cares how it did it?" That's true - but understanding helps to narrow search. Sounds of upsampling, oversampling and non-oversampling DACs are different. Many people don't like sound of upsampling converters (Muralman - ar... | |
| Jitter reduction, best device? Asi_tek - Upscaling, also called asynchronous resampling is not bandaiding. It is instead (and not on the top) of traditional extraction of data. In typical CD-player, as far as I know, stream of data coming from the laser has jitter and varying f... | |
| Jitter reduction, best device? Jitter is noise in time domain. Jitter produces sidebands at very low levels but audible since not harmonically related to root frequencies. Jitter free sound has more clarity (free of noise). Many CD were made from poorly digitized tapes and cont... | |
| OPamps still inferior to discrete circuits? Chris - It might "give more harmonic richness/complexity" if you already have rest of the system that you are happy with. I need to spend money on speakers.Audio always has been neglected an there is only a handful of opamps designed specifically ... | |
| I want to use an OTA HD antenna... Gmood1 - You stated that OTA HD is uncompressed. It is always compressed to fit into standard 6MHz bandwidth but cable companies compress it even more to save on cable bandwidth.Same is for directionality - it is as directional as antenna is at gi... | |
| OPamps still inferior to discrete circuits? Undertow - Burr-Brown is Texas Instruments now. Perhaps sound changed from "Brown" to "Instrumental"? | |
| OPamps still inferior to discrete circuits? Chris - I had a friend who believed that DAC IC should have current output to avoid I/V converter inside and be followed by the tube and discrete transistor circuits to avoid opamp. DAC itself has current sources build using monolithic, opamp like... | |
| OPamps still inferior to discrete circuits? Dgarretson - Jeff Rowland used batteries in his preamps but now he "switched" to switching power supply (SMPS) in Capri. It should be easier to filter out high frequency than 120Hz and also to make stronger supply within same dimensions (and SMPS ... | |
| OPamps still inferior to discrete circuits? Chris - This is difficult to answer. Example of Capri shows what is possible. The real question is what you can buy for the difference. It might be better to buy Capri for $3,500 instead of discrete preamp for $10k and spend $7k more on speakers. ... | |
| How much room for Magnepan 1.6qr? I've never heard Maggies but consider trying them for the reason of being bipolar therefore free from peaks and the valleys at different frequencies and listening position (that room acoustic creates by reflecting/bouncing sound). | |
| OPamps still inferior to discrete circuits? Casouza - Jeff Rowland uses, in great sounding Capri linestage, fully differential high speed op-amps OPA1632.OPA1632 has:0.00002% THD0.00005% IMD1.3nV/SQRT(Hz) noise180MHz bandwidthdiscrete amp like that is not a trivial task (layout!). Can you i... | |
| What is the best dielectric? Muralman - additional problem with speaker cables is skin depth. There is no skin effect down to gauge 18 within 20kHz audible range but my cables are gauge 7 (necessary or not). Splitting conductor into many (isolated) helps since surface area is... | |
| What is the best dielectric? Cpk - there are several cables made with oversized tubes (most of Audioquest, Acoustic Zen). I'm not sure if tubes have air or nitrogen inside. Material of the tube itself can be polyethylene, foamed polyethylene, teflon, foamed teflon - depending... | |
| What is the best dielectric? Oversizing should lower dielectric constant since air has lower DC than teflon. As for the difference with IC or speaker cable - capacitance of the wire is straight proportional to area and dielectric constant and reverse proportional to distance.... |