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Hi everyone, l am a new member so l hope this is a question for the general forum. l purchased a pair of beovox 1702 speakers a few weeks ago and they sound great (l like the detail) however one woofers rubber surround has gone soft so l can only use at lower volumes to prevent over excursion. l have had an estimate locally here in australia to have the surround prof replaced but the estimate was excessive. Does anyone have a 2nd hand woofer for sale to suit, l think the part number is 8480098 or does anyone know what a suitable replacement would be? Any help would be greatly appreciated.
Velcome to the forum. changing surrounds is easy and cheap, search the site for surround or speaker repair
Collecting Vintage B&O is not a hobby, its a lifestyle.
thank you both for your replies, l will have a look around the site for what you have described.
Yes l think l will order a surround and give it a go myself as l am usually fairly handy with things, although have never done this before. l was quoted 150-200 to do one 5.25'' (13cm) woofer.
Are the rubber surrounds on ebay for 6 euros similar in thickness/structure to the originals as my other speaker woofer is still fine and l would like them to sound similar. Apologies for all the questions, just want to have all bases covered before l carry out repair, thank you.
Thank you very much for your help. Ok, l will do both together. l have already re capped the crossovers,
regards.
If you count 2-3 hours for a speaker 150-200 USD are about right if you consider labor costs, I would do both drivers if one is bad the other one is on the way going bad. To clean off the old surround I use a small cutter blade. On the basket you can scrape hard and get it all off easily, on the cone you will have to be more careful, I place a finger under the cone at the scraping point and then scrape little by little until the glue is gone, do not cut or scrape into the cone, then clean off with mineral spirit or Isopropyl Alcohol again careful with the cone, just clean it with moist rag. Make sure you get the new surrounds with the correct dimensions
I use Aleene´s Tachy glue, did my first drivers some 5 years ago and they are still good.
These are the ones I found:
http://www.speakerrepairshop.nl/index.php?item=rubber-ring-for-bang-en-olufsen-beovox-1702-woofer&action=article&aid=1691&lang=EN
They should sound fine after all this work.
Dave.
Beovox 1702 does not use a 6-inch woofer!I never saw any surround problems with Beovox 1702, what happened?
Martin
True, but unfortunately, there are several typos and other "issues" in our product guide.The Beovox 1702 uses a 5-inch woofer.Surround 125mm outer diameter (or thereabout). Just measured,Martin
Dillen: True, but unfortunately, there are several typos and other "issues" in our product guide.The Beovox 1702 uses a 5-inch woofer.Surround 125mm outer diameter (or thereabout). Just measured,Martin
That's interesting as Beophile etc have the same information. I think I have a pair somewhere but haven't checked them. In that case, it may be worth dropping GoodHiFi a message about it (the OP not you Martin).
That's probably because the information was merely copied from the catalogues, where the wooferis also listed as 6-inch.Unfortunately, even four wrongs doesn't make one single right.The woofer is a 5-inch. I just measured it tonight on the pair I have in my repairshop.Martin
So do we.Unfortunately, managing the product guide is not within my jurisdiction.
Dave Farr:Goodness only knows what else is inaccurate?
So Beovoxnewbie will have to explain to us, whats wrong with the surround (pic?) and then pull out his vernier and take measurements.
Thank you to all of you for your replies/help. You are correct the speakers are 130mm (5'') to the edge of the basket frame lip, 119mm to outer edge of rubber surround, 114mm to outer roll, 90mm to inner roll and 85mm to inner edge of rubber surround where it meets cone.
I will have to try and post a pic later but the roll part of the rubber is somewhat flat and has lost tension, almost like someone had sat it face down on something in the past. There are some radial markings also. Not sure how this could have happened though as when l bought the speakers recently l removed the grilles to check things out and l can only assume (these being my first beovox's) that they had never been touched as factory adhesive seemed to be intact around circumference (quite hard to remove grilles). Both surrounds, woofers, tweeters and crossovers (before recap) all look to be factory original.
Thanks Dave for all your help, l will do.
You can search their website for foams/rubber surrounds for 5" speakers. The range is a selection covering most sizes that are nominally 5".
Thank you, l will have look to find best match on their site.
Here is a pic of worn surround, l know it is prob hard to see but compared to other surround on good speaker this one is NOT nice and rounded or plump looking.
Unless the sound is affected, I suggest you leave it as is.
//Bo.A long list...
The sound is not greatly affected however l usually have to run amp slightly balanced to other speaker because the worn surround on this speaker makes it more sensitive. l also have been using them with the grilles off so l can keep an eye on the excursion of this woofer with worn surround, have noticed l cant turn the bass or volume up too much as the movement on this woofer becomes far greater than good woofer.
Nice sounding little speakers however not an ideal situation having to keep an eye on woofer travel all the time as not to cause any damage.
I have ordered some surrounds earlier today from good hifi (r57's)
Hi, just to update, l have fitted new surrounds to woofers, fitted new stainless screws and replaced speaker grille cloth. Speakers are sounding great. I had to remove original paper spacer ring from woofer outer frame to fit standard profile replacement surrounds.
The grille cloth l purchased locally (Aus) was a very close match for original, not exact but close, can give details of seller if anyone interested, they have just ran out of stock but are expecting more in next couple of months.
Thank you to you all for your help.
That's another pair saved. Nice work !
Thanks Martin for your reply, it is appreciated. I am still amazed at the sound of these little guys, hard to believe they are only 22wrms. As an aside what Beomaster would make a good period correct companion for these, maybe a 901? l do like the look of this model.
Milton.
Yes, they are surprisingly well sounding speakers. I use a pair in my repairshop.Beomaster 901 (or 1100) would be a good match, yes.Alternatively, a Beocenter 1400 or 1500 (or 1600) if you'd like to have the casettedeck too.
Thanks Martin, l will have a look into these other models you recommend also.
Hi guys, just a quick question, the little 1702's are still sounding great and l have used them for many hours over the last couple of weeks since fitting the new surrounds.
However the glue l used from good hifi doesn't seem to have cured completely esp on the inner surround to cone area, it has stayed very tacky, have any of you experienced this?
Milton