Jump to content

Advent/1 and Large Advent square vs round magnet


Brad1234
 Share

Recommended Posts

I know this topic was briefly discussed before, but I got a pair of The Advent Loudspeaker to restore, late 70's model, metal frame woofer and fried egg tweeter. I opened them up to refoam and discovered they had the woofers swapped for the round magnet version some decades ago since foam surround is all rotted away. I have a pair of Advent/1's I have had in the family since mid 70's with square magnet and love them.
 

I am very disappointed the pair I am restoring has the round, newer woofers and wondering if anyone has an opinion or experience with these speakers with the woofer replaced with the round magnet?  I am tempted to look for a pair of vintage square magnet woofers to swap them out but not sure it is worth the money?  Or what I could resell the round magnet ones for?  I greatly appreciate any advice from any Advent experts out there!

48090A3D-7B5A-4EA4-960D-D70896BB456A.jpeg

12784032-F2DF-45D8-89CD-1D4E82F1BE4C.jpeg

D1C9EC0B-848D-4E9D-A0EB-559E6227E960.jpeg

5E825D32-DC78-46C8-A8ED-37D1D9A03D7C.jpeg

Link to comment
Share on other sites

I don't believe there is much difference in performance between the square magnet woofer and the round magnet woofer. Pete B. would be more authoritative on that but I'm pretty sure. Advent used the round magnet woofers on all models after Jensen bought the company and I have never heard anything about a real difference in low frequency handling.

I wouldn't be too disappointed.

Doug

Link to comment
Share on other sites

I went ahead and ordered original square magnet woofers for a hefty $150 w shipping assuming I can sell round ones to make up some of the expense. Got them installed now and it is night and day difference over the round magnet!  Definitely the sound I am used to from having the smaller Advent/1's since I was literally a baby. There is no question the square magnet have a much fuller sound and carry a ton of midrange for the speaker and make them sound so incredible like they are meant to.  The round magnet had a flatter sound in the midrange, sounded ok but not up to original sound. Crazy that speaker repairers in the 80's and 90's replaced these magical woofers just for some degraded foam??  

 

E9C6E31C-364D-4ACB-A809-28C19CD130BF.jpeg

12666AA0-1176-4E59-8160-61BC375DD9C4.jpeg

Link to comment
Share on other sites

  • 2 weeks later...

Hey Brad. New here myself, and a 'new to me' OLA owner in need of help. Where did you source the square magnet woofers? 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

On 2/7/2022 at 7:20 PM, Brad1234 said:

 

 

 

 

 

 

 

ordered original square magnet woofers for a hefty $150 w shipping

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Link to comment
Share on other sites

I found a set of the square magnet woofers on ebay for $150 w shipping. I sold the other round magnet woofers on ebay last week for about $100, so just lost $50 on the deal but the sound difference with square woofers is amazing, so worth it. They may be hard to find and frequently need new foam, which is an easy DIY job. You just need to be sure the voice coil slides smoothly to ensure they're not blown. The seller should verify this as terms of buying them. 

Link to comment
Share on other sites

  • 1 month later...

I've measured the in system, small signal, T&S parameters for OLA, NLA square,

and 5012 round magnet woofers and they are all nearly the same.  I'm very curious

to find out the wind height on the round magnet version but have never had one

apart to do it.  There might easily be large signal differences.

If anyone has a blown round magnet woofer I'll pay shipping to me and report back 

on the findings.

Link to comment
Share on other sites

Pete, I brought this very topic up a year + ago.

I have the woofer your looking for.  A round out of a 5012w.

I'd be happy to ship it to you no problem.  

Scott.munoz.2007@gmail.com send me your address.  Ship tommortoe...id like to know.

I agree, the square metal nla woofer sounds as described above.  

Scottie

Edited by scottie munoz
Grammar
Link to comment
Share on other sites

Hi Scottie,  That would be great I've been wondering about this for a very long time!

I'll send you my address by email.

Thanks,  Pete B.

Link to comment
Share on other sites

I grew up listening to my parents square magnet NLA's since the early 80's, and conned them into trading them to me for some pawn shop Technics speakers in high school, so I know the sound of the Advent square magnet well. When I got another set of NLA's with the new woofer round magnet replacement, I could immediately tell the difference. And I had my childhood NLA's still to compare them to, it was easily discernible. There is no question in my mind, the bass is deeper and the mid is clearer on the square magnet original woofers. 

Link to comment
Share on other sites

  • 1 month later...

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...