kijanki
Responses from kijanki
| Class "D" amp? I do not have a clue. Do you? "I'm convinced the better Class D amps are those that pay special attention to the power source on-board."Mapman - That would explain better reviews for BC Ref1000mkIIvs. original Ref1000. Same Icepower module (1000ASP) with built-in SMPS but new ... | |
| PC audio with S/pdif input only I use Airport Express with my Mac Mini and Benchmark DAC1. There are two issues with Airport Express- it is limited to 16 bit- it looses clock between songs making some DACs skipping first second of next song (time to sync). Benchmark doesn't do t... | |
| Negative Feedback a deal killer? Magfan - ASC series has also SMPS. I think that it was AP series but now Icepower makes different modules.B&O SMPS are pretty good - very quiet (zero voltage / zero current switching) and very strong (1000ASP can deliver 40A output for 0.5s). ... | |
| Negative Feedback a deal killer? Magfan - local feedbacks are always better than global one but their application is limited. Class AB amp design has to start with excellent linearity and wide bandwidth since one of conditions to eliminate TIM is to limit bandwidth at the input t... | |
| Negative Feedback a deal killer? Dob,Mentioned Rowland 102, 201, 501 have standard SMPS without anything coming from Rowland. You can buy amplifiers with built in PFC like model 312 or buy additional power supply but most of Rowland Icepower amps have only standard B&O module... | |
| Negative Feedback a deal killer? "better dynamic range then all others based on tiny switching power supplies (again - huge exception is Jeff Rowland)" Not only that most (if not all) of Rowland Icepower amps use SMPS supplies but he uses them as well in Capri preamp and new gene... | |
| Signal Direction XLR to RCA? Which way? Rickschell - it's easy to remember if you know the reason. XLR input sides (of component or cable) are always female to prevent touching input (recessed contact). In addition XLR connectors are locking. It was intended for studio/concert environme... | |
| Negative Feedback a deal killer? "50us/0.2us = 500" ? | |
| Can volume/selector pots be switched out of a pre? If it happens again you might try special lubricants/cleaners:http://www.amazon.com/CAIG-DeoxIT-FaderLube-Lubricant-oz/dp/B000H2G5R8/ref=sr_1_1?ie=UTF8&qid=1287627288&sr=8-1 | |
| Music you like but rarely listen I never listen to one CD I have: Music of Indonesia "Songs Before Dawn" (always asleep). | |
| Negative Feedback a deal killer? Unsound - As I understand it class D doesn't need a lot of negative feedback since duty cycle is much more linear than transistor voltage in class AB output stage*. In addition it has inherent low output impedance since speaker is always connected... | |
| What if you designed your ultimate speaker? A good question to ask is: Why nobody else is doing it (1/2 octave design)?Do you know something they don't or is it simply not cost efficient for others to manufacture? Is it for you? Dealer markup is often in order of 50%. Company markup on comp... | |
| Changed Speaker Placement NOW BOOMY Josh358 - That's exactly my situation but EQ won't help me getting rid of echo. What happens at lower frequencies is also echo in a sense that reverberation changes sound (bass attack, decay etc.) | |
| Changed Speaker Placement NOW BOOMY "I've never sat in front of Hyperions, but they look great."Timlub, you make me feel better. The only thing I didn't like about Hyperions was black piano finish and coffin like shape. Now it is slowly growing on me. I even realized that possible s... | |
| Changed Speaker Placement NOW BOOMY Timlub - There is a pretty good article here : http://www.ethanwiner.com/acoustics.htmlIt shows that my material (John Manville 817) has two times higher absorption coefficient at 125Hz than lighter 814 material (similar to common Owens Corning). ... |