shadorne
Responses from shadorne
| Subs & Group Delay 1)An SVS 13" Ultra with its ports sealed shows app 5% THD at 20hz at 100db anechoic. In a real world listening room, that's presumably a crushing spl, so could one safely assume distortion is no issue? It is pretty impressive yes but a far cry fr... | |
| sealed vs vented subwoofers Duke,Thanks for the link - interesting reading. In simple terms, GedLee is saying that higher order harmonic distortion is much worse than low order distortion. This means 2nd order is better than 3rd order ...etc. etc. This jives with everything ... | |
| What kind of active speakers? Check out NHT also. | |
| Subs & Group Delay I'm aware of a controlled listening test in which 30% second harmonic distortion was statistically undetectable Second harmonic is fairly benign but 3rd harmonic is bad - so it depends on the type of distortion. The other issue is that 1% distort... | |
| sealed vs vented subwoofers NO measurement or design principal has ever been shown to give a close correlation with sound quality. I agree in the sense that no single measurement does - it is usually a combination of measurements and design principals that correlate to soun... | |
| Subs & Group Delay I'd go group delay first as it is no use having low distortion if there is a whole load of resonance or ringing from your sub - remember your room is going to resonate too! So less resonance or the sooner the sub stops ringing (overdamped) the bet... | |
| sealed vs vented subwoofers Duke,I am confused now because you say group delay is worse on sealed? You can clearly see on the links I gave how blocking the port reduces group delay - so how do you explain that? (My understanding is that the port radiates one full cycle out o... | |
| How to diagnose the need for room treatment? Make sure you have a measurement microphone - an omnidirectional condenser type. For example the Behringer ECM-8000. An ordinary microphone is not suitable | |
| sealed vs vented subwoofers To issue broad decelerations that one type of design is better than another is almost always wrong. It is simple physics. Sealed enclosures tend to produce tight, accurate bass with a flatter frequency response curve. They are also generally the ... | |
| Does good technology guarantees musicality? 1992 is a "bit" dated in digital. By 1990, Jitter was just surfacing as an accepted major concern which many manufacturers had not yet fully addressed. | |
| sealed vs vented subwoofers Do the sealed subs produce a higher quality tighter controlled bass vs a more sloppy reverberating type of LFE out of the vented types? Yes - just like most speakers - when a vent is used to extend the bass of a small box it increases the group d... | |
| Does good technology guarantees musicality? i think taste or preference, trumps technology. Because music is art - this will always be an issue - the most perfect technology may NOT be what people prefer to hear - people who pay 10K for an item probably do NOT want it to sound just like a ... | |
| Buying new pre-amp I know S/N ratios will probably be much better, but will it sound any better through say the CD input which is basically a straight through connection anyway. Op amps have improved a lot since the 70's. The power supply caps will probably be drie... | |
| Dimly lit room: Plasma, LCD, or DLP Plasma are best overall. As Chad says above - LCD's do not do blacks well at all. IMHO there is NO comparison (I own both) | |
| How to diagnose the need for room treatment? Another option if you have a PC is Room EQ Wizard (for PC and free - a vry cheap solution) or Fuzzmeasure Pro 3 (for Mac $150) - you'll need a measurement microphone and a pre-amp like a Dual Art USB pre and off you go - measure to your hearts con... |