kijanki
Responses from kijanki
| Transport for DAC Shadorne - I'm perhaps very lucky with this particular unit. I used more expensive and larger ALPS "Blue Velvet" pot with conductive plastic track and matching was worse than this tiny pot (Alpha I think). | |
| Why are most High End Amps class A Kirkus - I read article that shows harmonics of output stage (class AB) with underbias, proper bias and overbias. It's a little eye opening since many people believe that increasing bias will make class AB sound like class A. It is not so simple -... | |
| are all amps equal Shadorne - I can make case for bad power supply being less affected by power cord than very good one. Here it comes:Average value of current being drawn from power supply caps is taken from transformer in very sharp pulses. These pulses heat up tr... | |
| Why are most High End Amps class A Kirkus - class A amp at very low levels has both output devices conducting simultaneously doubling their voltage gains. It creates wobble in output linearity - no escape from that. It is known as "gm doubling". Increasing bias won't help since ove... | |
| Transport for DAC Shadorne - Thank you - that's probably the case especially with my amp (class D). 0dB setting is OK - it gives full power at about 1 o'clock position of the volume knob. The problem comes when I listen very soft at night. Fortunately volume pot on... | |
| Transport for DAC Shadorne - I'm using XLR cable without adapters. The only gain adjustment with XLR is either 4 jumper settings or volume knob on the front (if you chose this mode).I'm using volume control (no preamp).My power amp (Rowland 102) has only XLR inputs... | |
| are all amps equal That's how you do "liquid"?!! I was getting "liquid" to hear it "liquid" but gum method is definitely cheaper. | |
| Transport for DAC Shadorne - "To me the greater the precision the more problems/anomalies you discover in your recording collection."This is very true. I discovered big difference in recording quality with the Benchmark. I like its clarity but it took a while to ge... | |
| Transport for DAC Al - One review of the Benchamark claims way better performance at 0dB settings for XLR (four jumpers inside) than any other position (-10, -20, -30). I can hear a little livelier sound at 0dB than -20dB but -10dB is much worse and my 0.5m cable h... | |
| Extreme hardglass CD Chris - you're not planning to buy them? Be serious. | |
| Why are most High End Amps class A Kirkus - Yes, saturation can appear without any gain in the circuit but it has nothing to do with the issue we're discussing. High slew rate input signals come back to summing junction thru negative feedback delayed because of signal path delays. ... | |
| Transport for DAC Mapman - I don't know DAC like that since I wasn't looking, but heard that people had good results with tube preamps. My Benchmark serves as a preamp.According to Stereophile Bel Canto is a little better (not necessarily warmer) than Benchmark but... | |
| Why are most High End Amps class A Kirkus - The magnitude of TIM is highly dependent on the open loop gain (everything else being equal) up to point where output transistors go to momentary saturation and stay there for a moment (having charge trapped at the junction). We cannot he... | |
| Why are most High End Amps class A Kirkus - one of the problems with class AB is required gain to get rid of nonlinearity. Class AB amps have gain (before feedback) of couple thousands while class A couple hundred. Huge gain (before NFB) and delays just invite TIM if input slew rat... | |
| Transport for DAC Al - Benchmark had all sorts of problems so be careful with used one (and the new one has 5 years warranty for original owner). First problem in very early Benchmarks was thin sounding NE5532 made by Signetics (Philips). Fortunately Philips factor... |