drew_eckhardt
Responses from drew_eckhardt
| Sealed vs Ported Subwoofers >The sealed sub absorbs the backwave of the open baffle driver. Not really a new idea.Not exactly.When you add a monopole and a dipole together you get a cardioid with 4.8dB directivity (versus 0dB for a monopole) which interacts better with ro... | |
| Sealed vs Ported Subwoofers A ported enclosure can be 3dB more efficient at the same size or play a quarter octave lower at the same efficiency.The same driver excursion will net you perhaps an extra 1/3 octave of extension with a ported speaker.You'll have higher excursion ... | |
| ss multi-ch. amps vs multi seperate amps any adv. >09-03-10: Longhornguy>Monoblocks are usually not the best answer in practical applications.>>Unless you have a dedicated 20 or 30 amp circuit in your power box, you will short out your 15 amp breaker with 5-7 monoblocks + tv + etc etc... | |
| Sealing ported enclosure to reduce boom >08-24-10: Ifsixwasnin9Great responses. Actually I stuffed the ports then I took out the woofer to see what was in the cabinet and the woofer is completely sectioned-off with pieces of foam! So I have to find out where the port is getting its b... | |
| Bi-amping + speaker crossovers = redundant? 08-24-10: Mhedges writes> There are commercial external crossovers for this exact purpose. I am using the now discontinued NHT X2 crossover to biamp my speakers. It is a good piece but would not be suitable for this application since it is real... | |
| How many 'listen outside of the box' design? >I don't know what they are called, exactly, but does anyone use regular cone speakers without enclosure? 'Open Baffle'? is that right? Sure. I built a pair of Orions designed by Siegfried Linkwitz.Everything good about panel speakers plus the ... | |
| what to do with my cat on my speaker grills Spray bottle and a sisal covered scratching post nearby (that feels better than speaker grill covers) | |
| Speaker cabinet made of real wood >06-08-10: TonywinscThe density of the cabinet walls is key to minimizing vibrations of the speaker cabinet.Denser cabinet walls won't do much; they need to be stiffer. With only a 3:1 difference in stiffness between MDF and hardwood you're goi... | |
| Best budget speakers for near-field/small space Milesandcoltrane writes:>I've also heard many great things about the Linkwitz Pluto. And since its available as a DIY I could save some bucks (though I have no experience whatsoever, so its a bit daunting).Apart from maximum output level (a 16c... | |
| Symptoms of damaged drivers / crossovers? If you're measuring across the speaker terminals, only a failed lowest frequency driver will show up as infinite resistance. | |
| Seeking "Crossover Networks For Dummies," please > "monotonically increasing directivity index"?> I assume that directivity increases with frequency, but I am unsure what is meant by "monotonic" in this context. Can you shed some light?Monotonic means that it never decreases along the way ... | |
| Seeking "Crossover Networks For Dummies," please Floyd Toole's _Sound Reproduction: The Acoustics and Psychoacoustics of Loudspeakers and Room_ is the best synopsis of 50+ years research into how human hearing interacts with loud speakers and rooms.It'll help you understand what good speaker des... | |
| Low Volumes >Do I need better speakers? Model 1s crossed my mind. Better amp? A Luxman 505u crossed my mind.A digital preamp with a decent loudness control would be ideal. Some form of equalization to increase the bottom end would be a step in the right di... | |
| are subwoofers anti-audiophile? >04-07-10: UnsoundNandric, Stereophile is fixated on 20-20K because that's the limit of the recording mediums available to us.CD is good down to .0002 Hz assuming you fit a full wave on a 70 minute CD.20Hz-20KHz is generally regarded as the lim... | |
| are subwoofers anti-audiophile? Nandric writes:>The designer Joachim Gerhard (Virgo,Caldera,Medea) keep away from 'enything' below 40Hz in the mentioned loudspeakers. But for those that parsist on organ music he produced some subs...It's about trade-offs.At the same efficienc... |