drew_eckhardt
Responses from drew_eckhardt
| Stupid speaker test question...please help a n00b >Why aren't speakers tested by measuring the output sound waves vs the input wave signals?Because it's less relevant due to how our hearing works than other measurable parameters like intermodulation distortion and stored energy.The phase disto... | |
| Phantom center channel volume My Lexicon DC-1 seemed to do the right thing and for 2-channel down mixes allowed the center level to be specified. | |
| Speaker damage from running I wrote>it takes a program material level of 111dB to bottom it which isn't a problem, 105dB @ 10Hz which is getting more likely to be an issue, and 93dB @ 5 Hz which will cause problems on some sound tracks. With a full 6dB of baffle step comp... | |
| Speaker damage from running Markhyams writes:>Will running the main L/R speakers in "full-range" and no .1 LFE channel damage the speakers?With sealed speakers you should be fine (SPL drops 12dB/octave and excursion remains constant with decreasing frequency after droppin... | |
| How to choose cables for my system Generic 12 gauge speaker wire for about $.40 a foot will be indistinguishable from anything at the same gauge unless you know what you're listening to and the placebo effect can work its magic.Generic interconnects work the same way. I spend at li... | |
| Can Vandy's get along with cats? 1) Most cats would rather scratch a sissal scratching post and one near enough the speakers will get used preferentially.2) Most cats will avoid things that get them sprayed with a water bottle (while they're actually in the process of doing somet... | |
| What matters most in speaker design? 11-21-11: Cdc>Drew, That is interesting. I thought flat power response was the goal: Earle Geddes - waveguide loudspeakersEarl's speakers don't have flat power response. They're omnidirectional at low frequencies, narrow gradually as the mid-ba... | |
| What matters most in speaker design? >11-16-11: Drew_eckhardt>1) Unless you were doing some form of reflection free measurement (anechoic chamber, speakers buried in the ground and measured in half space, or a gated measurement of some sort most likely using Maximum Length Sequ... | |
| What matters most in speaker design? >11-16-11: Cdc>I originally thought flat frequency response was a primary goal. And it is, IF damage done to achieve this is minimal.>BUT having listened to single driver speakers with no x-over and then adding different tone controls, [D... | |
| speakers/sub You need a sub-woofer with equalization, preferably one that calibrates itself. You also need a sub-woofer (or sub-woofer controller) that will put a high-pass on the main speakers.1) Your room has its fundamental resonance at 47Hz and will have b... | |
| How Is Bass Divided Among Speakers If No Sub? It depends.Dolby suggests discarding the LFE channel when there is no sub-woofer for headroom reasons.(The LFE channel has 10dB more headroom than the screen channels, so you're looking for reference level SPLs of up to 115dB SPL at the seats whic... | |
| best wood for speaker cabinets ? oak,cherry, balti Solid hardwoods will give you problems with dimensional stability, with wood expanding up to 1/8" per foot across the grain and negligibly with it. Raised panels on furniture are made with undersized floating panels for this reason. People who suc... | |
| Center Channel Speakers In A Movie Theater? Just one. | |
| Is Bass Non-Directional In A Two-Channel Rig? Yes, assuming that levels are matched, you have a 4th order electrical low-pass filter, and your sub-woofer is free of distortion, port noise, and rattles One caveat is that stereo bass with phase differences between the two ears can create a sens... | |
| Another biamp thread. 08-15-11: Hifihvn>The pros have the high dollar test equipment to work with, and see the after results too.The few few hundred dollars to buy a personal ARTA license for gated measurements, microphone preamp, and calibrated measurement mic are ... |