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kijanki

Responses from kijanki

Is a femto clock important if you aren't using asynch USB?
femto clock is mainly useful to sync up the digital stream from a computer Other than Asynchronous Rate Converter used in some DACs (like Benchmark), most of them use PLL (Phase Locked Loop)  and have variable D/A converter clocks with S/Pdif t... 
Dust Settled Consensus- is the Benchmark AHB2 an Audiophile Amplifier?
@ricevs Many claim that amps like AHB2 reduce harmonics. I don’t know how it is possible if amp has flat amplitude and phase response in audio band. Adding even harmonics to create "warm" sound or bit of distortion to create illusion of dynamics s... 
Dust Settled Consensus- is the Benchmark AHB2 an Audiophile Amplifier?
@yyzsantabarbara Thiel CS3.7 minimum impedance is in order of 2.5ohm (2.8ohm specified, 2.4ohm measured by Stereophile).  Driving it by AHB2 in bridged/mono mode is equivalent to driving 1.25ohm speaker in stereo mode.  AHB2 is not rated for that ... 
Dust Settled Consensus- is the Benchmark AHB2 an Audiophile Amplifier?
I enjoy AHB2, but Paul Seydor in Absolute Sound review of AHB2,suggested it is not an audiophile amplifier: Because accuracy allied to absolutely reliable performance is the goal of all the Benchmarks, they are not products that tend to attract ... 
USB cables conducor - help
Metal should not matter - it is only data in packets (as it is with external USB HD).  I would look for quality cable with good shielding.  
Harmonic distortion inquiry
Since THD is calculated as root-sum-square of rms voltages of individual harmonics as a percentage of fundamental I wouldn't just add THDs of two devices.  Most likely it would be again root-sum-square of two (or three) THDs.  
Gain / Amplification
It totally applies there @kijanki - imagine 10 nV on the IC and then amplifying that small, medium or large.   Then you're talking about noise pickup by interconnect.  That was mentioned as second reason.   First reason was that amp with fixed ... 
Gain / Amplification
Lower gain in amp and higher gain in pre could be better for two reasons: - It moves more gain to electrically quieter environment (pre) - It reduces relative electrical noise pickup by interconnect. Of course it depends how power amp reduces th... 
Digital source upgrade suggestion?
My setup is pretty much the same.  The beauty of it (WiFi) is that nothing on computer side matters (Computer speed, power supply, amount of memory, playback program etc), since there is no direct connection and no real time clock .  Airport recei... 
Analogue v. Digital...again (Washington Post)
 
Grounding questions
Hum independent of volume can be a sign of old/dry power supply caps. I would, per maxwave advise, take it to a friend and try it there. Also, since you have balanced connection between pre and amp, check where shield is connected on both ends. I... 
Optical Isolation
@navyachts Jitter converts to added noise proportional to signal level (no noise without music), detectable only as a loss of clarity.  The best way to compare two streamers, network players or digital cables is to listen, paying attention to clar... 
Optical Isolation
Technically coax should be better, since transitions are faster, hence system noise (jagged edges on transitions slopes) does not convert to timing jitter, but coax is prone to reflections on characteristic impedance boundaries (that adds/changes ... 
May The Gas Be With You
@czarivey You need Flamenco guitar - poor Presence, huge Projection, short Sustain  
May The Gas Be With You
The biggest crime are the guys who collect them and DON"T EVEN PLAY! Why? Should people who collect China use it?  What about guys who collect knives?  :) Collecting is different from upgrading. GAS starts from "Gardener's Syndrome" - constant...