Jump to content
The Classic Speaker Pages Discussion Forums

Doug G.

Members
  • Content Count

    390
  • Joined

  • Last visited

Community Reputation

0 Neutral

About Doug G.

  • Rank
    Advanced Member

Contact Methods

  • Website URL
    http://
  • ICQ
    0

Profile Information

  • Gender
    Male
  • Location
    Rochester, MN

Recent Profile Visitors

6,123 profile views
  1. And sometimes, an Advent employee used a black marker but it means the same thing - positive connection. Doug
  2. Doug G.

    OLA's I Just Bought

    Yes, the optical illusion is common with the Masonite woofers where they look like the rolls are poking out when they are not. There are subtle clues to tell. Doug
  3. Doug G.

    OLA's I Just Bought

    Masonite ring woofers have inverted roll surrounds, all of them, or SHOULD have. The later all-metal woofers have standard mount with the roll poking out, or SHOULD have. The only way they get switched is if a subsequent owner changes them or a "professional" changes them. Doug
  4. Doug G.

    OLA's I Just Bought

    Yup, get 'em fixed up so they sound new. Those are probably from 1973 or so, with those serial numbers. Doug
  5. I am very sorry to hear of Carl's passing. Here it is almost two years ago and I didn't know. Doug
  6. The trim pieces around the inside edge were never gold plated. They have always been a light gray. Originally they were wood and the gray paint can come off and make them look like they were some other color. Later, the pieces are gray plastic and as such, will always be gray. The original finish on Advents was always a rubbed oil finish and satin. If you have seen a gloss finish, they have been redone. As ajfink stated, the surrounds being in upside down doesn't really hurt. There's just the chance the roll will rub on the Masonite edge. That's why advent put them in inverted. If you ever notice any fuzziness in the sound, that's what could be happening and they should be refoamed the correct way. Doug
  7. The change from fiberglass to foam happened in the latter days of original Advent production, in about 1975. I have some of each and they sound the same. I doubt, in spite of possibly a production cost reduction, Advent would have made the change if there were a audible difference between the two versions. Doug
  8. Doug G.

    NLA grill cloth?

    I have often found the right color for original Advents but never the right TPI (threads per inch) of 16 - 18. Doug
  9. Doug G.

    NLA grill cloth?

    I believe the New Advent fabric is a browner shade than Original Advent fabric which is an off-white - ivory color. Doug
  10. Doug G.

    Strange Fried egg

    Hi Antonio and welcome, The stickers are on replacement tweeters which should be identical to original units. I can't explain the DCR difference but it could be that the VC windings are damaged. The sticker explains that, basically, it is for a New Advent and not the original Advents. I would listen to it to see if it sounds the same as others. Doug
  11. I think this is a good example of users, out in the field, changing things around in a speaker without considering the original design or why certain components are in a speaker. I realize cost is often a major factor in speaker design and construction but, the thing is, the components in a speaker ARE the components in the speaker and if you go changing them, you may well alter the sound but not necessarily for the better. Doug
  12. You need to leave a note in your will that if anybody so much as frays a single strand of grille cloth on those speakers, you will come back to haunt them for life. Doug
  13. If the tweeter has a 1972 date on it, the magnet is a small one (2.5" square. not 3" square.). Any green tweeter from about 1975 on has to be checked for magnet size as Advent used up the green cones, even on large magnet tweeters. Doug
  14. You don't need the crossovers to basically get sound out of the woofers. His use of the word "static" indicates he doesn't really know much about HiFi or sound reproduction. What's probably happening is the surrounds are bad and the voice coil is rubbing on the magnet pole piece. That's probably the "static" he hears. The drivers are making sound, however. It's up to you whether or not to persue the drivers because it's hard to tell exactly what's going on but usually, the surrounds have deteriorated and the rubbing occurs. You may want to talk to him again and see if you can get a more specific description other than just "static". Doug
  15. My opinions are based strictly on observation of sound and deduction from owning both colors of tweeters. Also, deducing a logical progression of events at Advent. The cone color doesn't make any difference per se. The green cones were originally used on the Smaller Advent for easy identification to be sure a given tweeter was not put into the wrong speaker system. I assume both the original Advents and Smaller Advents were made in the same factory and, even if not, the tweeters were most likely all made in the same place so keeping them separate was important. Since the original Advent orange tweeters have 3" square magnets and the early (pre 1975) Smaller Advent tweeters have 2.5" square magnets, coloring the cones green for the Smaller Advents conveniently made identification easy. In 1975, when Advent made a change to the Smaller Advents, using the same large magnet tweeter of the large Advent and compensating the efficiency with a crossover change, there were obviously green cones left over and Advent used them up. Hence, tweeters from both the large Advents and Smaller Advents, from this brief time period can have green or orange cones. They are, except for the cone color, electrically and physically the same. When Advent ran out of green cones after this short period of time in the latter part of 1975, the cones were then all orange in both the large Advents and Smaller Advents. There will never be an orange-cone tweeter with a 2.5" square magnet. The determining factor is thus, the size of the magnet, not the cone color. I have always found they sound the same as long as the magnet size is the same, tweeters with smaller magnets having a slightly lower output for a given input. I hope this is all at least semi clear. Doug
×
×
  • Create New...