kijanki
Responses from kijanki
| What is wrong with negative feedback? "These amps are high damping factor which matches well to the OHMs, so I suspect there is NF applied, but not sure"Mapman - Not only NFB is applied but it is mulitiple (two) called Mulivariable Enhanced Cascade Control. It is in the Karsten Nielse... | |
| Cartridge Output Perceived loudness can be calculated ask^(1/3.5) where k is a ratio of power (or squares of voltage)in your case (0.5^2/0.3^2)^(1/3.5) =1.340.5mV will be 34% louder than 0.3mVAnother typical example 200W amp will be louder than 100W amp by (200W/1... | |
| What is wrong with negative feedback? I'm not sure if DF>100 makes much sense since inductor in series with the woofer has resistance in order of 0.08ohm.8/0.08=100 | |
| USB Cards to Replace Compact Discs? Blinjim - Exactly, we're minority here. The only reason, in my opinion they even went to SACD, HDCD and DVD-A was to introduce strong copy protection (SACD cannot be copied at all). This is understandable since making CD with royalties costs about... | |
| bananas vs spades as terminals for speaker cables Rrog - speaker wire I'm using is a little too complex to use bare. It has whole bunch of strands in individual insulations and one that has again bunch of very thin strands. I decided to uses spades. Many purists believe that adding solder introdu... | |
| What is wrong with negative feedback? Atmasphere - concept is beautiful. Tube class A balanced operation without output transformer. The only problem I can see is that this design requires a lot of tubes and each one has about 2.5A heater current - a lot of wasted power. On the other ... | |
| 'Best' CDP for under $1000 ? Upgrade to GCD-575 Mikey44 I use DVD's digital output connected to DAC. Dac can be connected do preamp (or integrated amp) or be preamp ff it has volume control (Benchmark DAC1 does). Basically it is high quality CDP in two packages. | |
| 'Best' CDP for under $1000 ? Upgrade to GCD-575 What about cheap DVD player (I use $69 Sony) and Benchmark DAC1. It makes you independent from the transport (easy to change) and allows to connect computer. Benchmark DAC1 is very hard to beat in this price range. DVD players have great tracking. | |
| What is wrong with negative feedback? Mapman - Moderation is the word. Instead of feedback or no feedback we can settle for moderate feedback. Sound coloration comes from dynamic nonlinearity of the system with the feedback. Amplifier itself is far from being first order low-pass filt... | |
| bananas vs spades as terminals for speaker cables Ryriken - Many amps don't support bananas. My old Cambridge A3i supported only spades. My current Rowland 102 (and perhaps all current Rowland amps) have Cardas style clamp - for spades only. As for the sound, if there is any difference then accor... | |
| Audio and the "jet set" - please help What traveling audiophiles often do is to bring along DAC (like Benchmark DAC1 or DAC1 USB) and connect it to laptop. Benchmark has volume control and headphone amp. It operates 115V or 230V, 50/60Hz. Small class D amp (like Rowland 102 I use) can... | |
| What is wrong with negative feedback? Negative feedback extends bandwidth, lowers Harmonic and Intermodulation Distortions and lowers output impedance.Unfortunately, if not used wisely, is increasing TIM - Transient Intermodulation. In time domain it will show as just small overshoot ... | |
| Anyone successful in dealing with Tinnitus? Cdc - You forgot about Scotch? | |
| Amp not enough power You can use 22000uF/80V (more common value). You can find it in digikey.com Example here:http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=E32D800HPC223MD80M-NDAnother good source is mouser.comexample here: http://mouser.com/Pas... | |
| Amp not enough power 400W is only 1.5% louder than 380W - don't worry. I would recap this amp for better bass control. I changed power supply caps once and that is what I noticed. Bass became shorter more dynamic and cleaner. Older caps have higher ESR (internal resis... |