drew_eckhardt
Responses from drew_eckhardt
| size of the driver >04-28-12: Johnnyb53>More or less true, but bear in mind that a 12" woofer has *at least* twice the mass of a 9.5" woofer, and perhaps more because it will probably have a thicker cone to counteract breakup. All things being equal (which the... | |
| size of the driver Avs9 writes:>But nowdays I am seing 6 inch drivers stated as "bass". Just curious how well those performThey provide enough mid-bass output to meet a woofer for serious listening or a sub-woofer at polite but not realistic levels suitable for h... | |
| using a sub with full range versus or monitors ? >I am in the process of buying new speakers, I plan on buying the svs psd 12 sub to go along with them, would full range floor speakers be overkill with a sub,No.>or would there be any benifit to using a full range speaker with a sub, thanks... | |
| Does the speaker port limits the woofer excursion? This isn't quite right.The port loads the driver in its passband thus reducing excursion dramatically versus what the driver would otherwise have at that frequency and produces its own output via resonance. This allows you to have lower bass exten... | |
| Trying to build dipole sub - a la Celestion 6000 04-22-12: Ngjockey>Personally, the concept of the drivers facing each other seems counter-intuitive for a dipole. There aren't enough pictures to see what's going on with the Celeston, although opposing drivers are fairly common.W-frames let yo... | |
| Trying to build dipole sub - a la Celestion 6000 >I like the effects I heard with the Celestion but I'm not confident I can reproduce the same results by just mocking up the design. I rather play it safe and go with a tested design.You can do better. For instance mounting one woofer magnet in... | |
| Trying to build dipole sub - a la Celestion 6000 I built Siegfried Linkwitz's Orion design, have run them in three different rooms so far, and have heard a handful of other Orion setups and other dipole bass/sub-bass setups in different places. They work great.I've also heard Martin Logan's atte... | |
| Presentation is Too Forward, where to start? It's the speakers.You are receiving excess high-frequency energy from the side-wall and ceiling reflections due to the broadening polar response above the cross-over and have a few high frequency resonances that will color the sound including the ... | |
| Trying to build dipole sub - a la Celestion 6000 Siegfried Linkwitz has written extensively on dipoles. Read his web site. http://www.linkwitzlab.com/Analog solutions to the dipole roll-off and sub-woofer cross-over are simple and are possible in passive line level form if you have enough gain i... | |
| Speaker grill material, any real difference? Some "grill cloth" is more accurately described as "acoustically translucent" not "acoustically transparent".Using whatever the speakers were designed for would be prudent. | |
| Why do planars have poor bass extension? >04-16-12: SideshowgabeThanks all! I'm particularly interested in the canceling effects inherent in the dipolar radiation pattern could anyone point me to some more in-depth literature along the lines of Drew_eckhardt's response -My comparison... | |
| Why do planars have poor bass extension? At 40Hz (oops, omitted that). At 20Hz it's 8X more than the monopole, 18dB more raw output (64X) than at 160Hz, and 512 times the displacement. 04-15-12: Drew_eckhardt>Due to the energy lost into the acoustic short circuit between front and bac... | |
| Why do planars have poor bass extension? Due to the energy lost into the acoustic short circuit between front and back surfaces in a domestically friendly 14.5" wide planer speaker or deep W/H frame you need 4X the displacement compared to a monopole and 12dB more raw output compared to ... | |
| Sub Cross Over Help 1. You can't use a single tone to match levels because of its interactions with room modes that make some frequencies significantly louder or quieter than others depending on location (even 6" can make a huge difference).You want to use pink noise... | |
| sub playing by itself 1. Change your cable orientation; just a little bit can do it. One of my active speakers was picking up 94.9FM (with a nearby 50 KW transmitter and wavelength 4X the vertical speaker wire length) until I made minor adjustments to where the excess ... |