sean
Responses from sean
| Where are your maggies?? El: A really big room is harder to pressurize and obtain high levels of low frequency output. If you doubt this, compare the figures that are used for "room gain" in a house and "cabin gain" when used in a car. The smaller area of a car is easier ... | |
| Could the transformer be eliminated? A 6LB6 would typically be considered a 25 - 30 watt tube in audio circles, possibly less if looking for low distortion figures. If you can remember, how many of these tubes did the amps run per channel ? For the record, i think that a 6LB6 was pri... | |
| I have dedicated lines, but why is this happening? Some very good points here and one that was overlooked. As Herman stated, dedicated lines do not mean isolated or filtered lines. Everything in your house ties back into the breaker box, so it would not be unusual for noise to find its' way from o... | |
| Room treatment questions. If your room is very close to the measurements that you provided ( 18' x 18' x 12' ) you are going to run into some very strong nodes with multiple reinforcement harmonics. I would HIGHLY suggest reading the book by F. Alton Everest that Clueless ... | |
| Slow left channel start up Bias could be off and / or caps are going soft. Since most modern caps are pretty reliable nowadays, my guess is that the amp is out of alignment and the bias in one of the gain stages is low. Sean> | |
| OK, I said it... Pbb: I'd like to second, third and fourth the above comments. Kudo's to you for having the guts to give this a try. I know that it had to be "difficult" for you to do this given some of your past comments, but i'm glad to see that you were up to t... | |
| Could the transformer be eliminated? Weren't the original Acoustat's powered by their own OTL tube amps ? Sean> | |
| Where are your maggies?? 1) Your room is TOO big for this type of speaker.2) You don't have near enough power for the speaker that you are trying to run. Combine this with the size of the room that you have and it's no wonder you aren't happy.3) In order to get what you w... | |
| Help with cartridge loading. . . Dan: Using a terminating impedance that is very near or lower than that of the cartridge itself will "load down" the cartridge. This typically results in muddy bass and severe high frequency sag. If one has a cartridge that has noticeable high fre... | |
| Which speakers excel at low volume? Zargon: I did a LOT of research on the subject. Had out every piece of test gear that i owned, paid for consultants to come in and analyze the results, ran confirmation tests to verify out thoughts, etc... It was both exhausting and exhilerating t... | |
| Help with cartridge loading. . . Pbb: cartridge loading has WAY more going on than just tonal balance. One of the most obvious changes in cartridge performance when varying terminating impedances are those of transient response and noise characteristics. While it is true that ton... | |
| Which speakers excel at low volume? Karls: Vandies are not so much "warm" as they are tough loads for most amps at high frequencies. For some reason, most amps take a dive in output levels above 9 - 10 KHz when driving Vandies. I don't know if it has to do with levels of reactance, ... | |
| Seeking full range single driver speaker recs CDC: While Jim Griffin has done a lot of work and makes it easy to build a high quality line array with the information provided on his website, line arrays present a very different approach and sound than what one gets out of a single point sourc... | |
| Isolation/coupling: basics? Thank you El. I'm not saying that you are wrong, but that my experiences and those of many others seem to contradict some of what you are saying. I also know that theory is called "theory" because it is not always "reality". Granted, "theory" is r... | |
| Help I think I blew a tweeter. If you've got a multimeter or continuity tester, you can check to see if the tweeter is still conducting signal. Otherwise, you are not likely to see / feel a dome tweeter moving. You are talking about minimal excursion levels that are vibrating t... |