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kijanki

Responses from kijanki

AIFF vs Apple Lossless Ripping
AAC is compressed like MP3 (but better sound quailty).  WAV doesn't have ability to store metadata (track names etc.).  AIFF shouldn't have any options, being uncompressed.  Your choice is between Apple Lossless (ALAC) and AIFF.  ALAC is about 50%... 
Looking for a USB Headphone amplifier
I bought Oppo HA-2 headphone amp recently and it sounds amazing. It has asynch USB, SPIDIF, DSD an analog in/out.  I use USB.  Sounds better than my Benchmark DAC1.  D/A converter IC is SABRE 32-bit. It has lithium battery and can be used with a p... 
Who tried Class D only to return to S/S or Tube
tfats, I've never heard Channel Islands but I know they were based on Hypex modules and had great reviews.  Bel Canto used Icepower modules (that my are in my Rowland 102 as well). Hypex had dual supply (+/-) but only two output Mosfets switching ... 
Who tried Class D only to return to S/S or Tube
kuribo, it appears that we need some common language here.  Saying "technology is mature" is a polite way of saying "It hit dead end" - therefore don't expect major improvements and place your order today. There are many technologies still improvi... 
Who tried Class D only to return to S/S or Tube
Ait, I think it is possible to place very large coil in front of capacitors in order to obtain constant charging current in form of sinewave.  The problem I can see with this scheme is size of the coil (huge inductance with low resistance) and the... 
Who tried Class D only to return to S/S or Tube
Ait, I understand that choke helps storing and releasing energy, but it won't affect charging of capacitors that has to happen in very short time. 
Who tried Class D only to return to S/S or Tube
Ait, Perhaps I'm missing something.  Imagine rectifier charging capacitors to 50V with 5mV ripple present. http://i.stack.imgur.com/BLGnf.gifCapacitors are charged ONLY during voltage increase on capacitor.  This period for 5mV ripple (1% of 50V) ... 
Who tried Class D only to return to S/S or Tube
Ait, Choke at the input as well as choke and big capacitor in my Furman Power Factor correcting conditioner serve as filter. Charging Linear PS capacitors is still done in narrow spikes of high amplitude - no escape from that.  Current is switched... 
Who tried Class D only to return to S/S or Tube
I’m  a little puzzled by all this "switching" talk.  My class D amp has 60kHz bandwidth while tweeters are almost completely quiet with my ear next to them (200W amp).   I’ve read the same in many reviews of different class D amps.  It was much wo... 
New preamp, loss of low freq.?
Many power amps use servo on DC (very  low frequency NFB), that might become unstable with low input frequencies.  For that reason amplifier's low frequency is often limited (in my amp to 5Hz). 
Who tried Class D only to return to S/S or Tube
"Once the technology is there and they put that switching frequency way up higher, then and only then will they be able to filter the s**t out of it away from the audio band and leave a nice clean square wave, and only then will Class D have becom... 
Why a headphone amp
Bigsam2, I have already Benchmark DAC1 with good headphone amp built in, but I bought separate headphone amp for convenience. DAC1 is across the room and requires long cable that is easy to trip over. In addition switching off main amp would requi... 
Speaker Cable connection: Jumpers
Runnin, I have separate posts for tweeter, midrange and woofers. I use Audioquest jumpers between tweeter and mids posts. I run shotgun cable from amplifier to woofer and tweeter/mid (cable connected to tweeter side). These jumpers are made of hig... 
Who tried Class D only to return to S/S or Tube
My Rowland 102 sounded the best after about 400 hours. Class D amps are very revealing and often don't work well with some "bright" components. I cannot say if class D works better when powered for a while since it is always on in my system. It do... 
why do people feel the need to buy expensive cable
Calvinj, replacing AQ Indigo with Acoustic Zen Satori brought, in addition to more refined sound, fuller lower midrange I was looking for with my class D amp (try to explain this in terms of R,L,C). Cello now sounds real, male voices have "chestin...