drew_eckhardt
Responses from drew_eckhardt
| Subwoofer X/O frequency experiments For the most accuracy you need your sub-woofer configured such that its sound sums flat with the main speakers at your seating location (this requires the appropriate magnitude and phase relationship)For the most accuracy from any speaker you need... | |
| "Wife Friendly" full range speakers Once you're a couple inches out from a boundary where the port faces is irrelevant without acoustic treatment. Given a 2-way speaker and treatment you're better off with a rear facing port where midrange leakage can be attenuated.2' out from the w... | |
| How low can one hear Huh?? Say again 1. Even if you can't hear 20Hz, at reasonable listening levels a speaker with an F3 point of 20 Hz has much more perceived output at 30dB than one -3dB @ 30Hz. Perceptually that can correspond to more than a 10dB change at 1KHz.2. With 10% harmoni... | |
| Progressive Scan >Dvd players will not convert to higher rez on any output >except DVI which has copy protection.There are a number of scaling DVD players available with outputs beyond 480p, with the Momitsu V880 being most popular.It will output any resolut... | |
| OK to place TV adjacent to Hi Fi equipment? Do you mean just the electronics or the speakers too?Getting my direct view television out from between my speakers (with an 8' spread between them) was the best thing I've ever done for imaging and cleared things up a bit too.Having speakers too ... | |
| B&K and Martin Logan Theater i By placing your speakers near room boundaries (the ceiling and front wall) and objects you've boosted the lower frequencies and introduced early reflections that confuse things. You also have them above furniture and people that will limit the sou... | |
| Crossovers Facts:1. For the same SPL excursion quadruples for each octave you drop in frequency.2. IM distortion is a function of excursion.3. The cross-over type determines the axis along which peak output occurs.4. Steeper cross-over slopes reduce the effe... | |
| Switching polarity of tweeter in two-way design Second order (acoustic) high and low-pass responses are 180 degrees out-of phase.You get deep notch if you don't invert one (in a perfect world you'd have no output).Linkwitz Riley filters have Q=.5 with both outputs -6dB at their pole. Inverting ... | |
| Front projection or not? Wider movies (mostly 2.35 and 1.85) use the same ammount of space on lower apsect screens (16:9 or 4:3) the same width as a wider screen. Narrower ones only occupt the middle. This is a feature.You don't want to watch 4:3 VHS tapes and wide screen... | |
| Front projection or not? There are a couple of problems with 4:3 screens.1. Source qualityMost 4:3 sources (DBS satellite, bad cable, VHS tapes) are extremely low quality. Most widescreen sources (DVD, HD) are high quality.If you use a 4:3 screen small enough to keep the ... | |
| Front projection or not? As far as stereo imaging, getting box out from between my speakers (4' from the front wall, 7' between a line drawn through the tweeters and the listener) did wonders for it.The sound stage on movie tracks also comes close to matching the screen (... | |
| Front projection or not? You could sit 10' from an 8' wide screen without having to turn your head.Most scope transfers are new movies or restored epics and would look great at that width.You'd want to run a 2.35:1 aspect ratio screen (IOW, 96 x 41") to keep DBS satellite... | |
| Front projection or not? 1. Your recomended seating distance is based on width, not diagonal. 60" wide is 69" diagonal.2. It's also very conservative and not even close enough to visually resolve 1080 line HD. In the absence of projection artifacts, once they adjust to a ... | |
| Low freq. from small drivers? Is it possible >Here is the frequency response of the Ultimate Monitor from >Karl SchuemannThe specs don't tell you enough to be useful.1. They don't tell you about distortion. The mid-ranges used in my speakers are good for .3% THD @ 96dB/1 meter in their... | |
| speaker cable for HT 12 runs of Carol 14-4 with the two pairs attached together (the left+right are actively tri-amplified and subwoofer has its own amp). |