drew_eckhardt
Responses from drew_eckhardt
| 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 ... | |
| Another biamp thread. The project is ill-advised.To at least match the performance you have now will require duplicating the transfer functions at the driver terminals (duplicating compensations for rising response, baffle step, driver resonances, etc). If you're willi... |