kijanki
Responses from kijanki
| How many watts is my system using? Mystang - "I'm using 6 amps when my system is playing music" something doesn't add up - If you use class A amp then your supply power is always the same with or without music but if your amp is class AB then your average power is in order of few w... | |
| Rethinking Listening Fatigue Cwlondon - Sheffield's Kodo Drums are very well recorded on CD - no need for vinyl here. | |
| Wise audio aphorisms It's bad when firefighters come too late (to your class A)but it's much worse when they come too early - Confucius | |
| Rethinking Listening Fatigue Shardone - you are absolutely right. They neglected quality and encouraged copying by setting prices too high. SACD, HDCD etc. are carrying much better copy protection but are way too expensive often with poorly mixed recordings.DVDs are sold in c... | |
| Rethinking Listening Fatigue It probably doesn't apply to your case but often amplifiers with very deep negative feedback sound fatiquing even if sound is not overly bright. After each impulse feedback is a little late and output transistors go to saturation and need a moment... | |
| midrange forwardness Chris - you can fix it to some degree with cables. When I read somebody's complain about pronouced lower midrange of Acoustic Zen Satori (Shotgun) speaker cables I bought them. Thats exactly what my small Icepower based amp needs. It added chestin... | |
| Bel Canto Ref. 1000s,CD-2 what cables work best ? I have Rowland Model 102 (smaller Icepower) and used to have AQ Indigo speaker cables. Since Icepower reviews complain about "not very round" sound (lower midrange) I selected speaker cable with a little pronounced lower midrange - Acoustic Zen Sa... | |
| Loudspeaker 'Back EMF' Kirkus - crossover is far from being perfect and Back EMF from tweeter to midrange or midrange to tweeter at the frequency close to crossover point (probably around 2.5kHz) gets thru. Amplifier's DF is limited at higher frequencies and cable induc... | |
| Loudspeaker 'Back EMF' Amfibius - It does interfere with an output to some degree. Most of amps contain negative feedback, forcing desire voltage on the output in spite of the current fluctuations. In one way it is beneficial helping with things like back EMF or intermo... | |
| Balanced vs. unbalanced One more thing - Input does not have to be directly an OP-Amp. It could be, and often is, coupling transformer. Transformer is a very effective method of removing common mode, breaking ground loops, blocking DC and limting rf (filter).Transformers... | |
| Balanced vs. unbalanced Bob - you asked "For example, if an op amp has a bandwidth of 10 MHz, what happens when its fed a 100 MHz signal?"Most likely RF rectification - conversion to DC or low frequency noise if 100MHz (or higher frequency) is modulated. It is caused by ... | |
| Loudspeaker 'Back EMF' Chris - portion of Back EMF generated by the speaker can get to the other speaker (tweeter to midrange). Amplifier would "short it" but there is about 5uH inductance of the speaker cable in between (and amp's output impedance is higher at higher f... | |
| Benchmark DAC 1 - first thoughts Variable doesn't work if you use volume control (one or another - identical signal path). -10dB is the worst (1600 Ohm output impedance), -20dB is 500 Ohm and 0dB is 60 Ohm. DAC1-USB has it lower. If you don't use volume control (have preamp) try ... | |
| Benchmark DAC 1 - first thoughts Signal path inside of DAC1 is, according to Benchmark's technical director John Siau, identical with or without volume control. Running Benchmark directly to power amp allows to get rid of one set of interconnects (and preamp's circuits - less is ... | |
| Benchmark DAC 1 - first thoughts DAC1's output impedance is dependant on this divider. 0dB provides lowest output impedance and best sound according to one review I read. I second buying USB version since it also has newest National Semiconductors LM4562 OP-Amps and scaled down m... |