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[ffcgary1]

Mark, hi mate long time no speaky, hope your well, i take it you mean get new speakers compleat cabs and all, or if i buy new componants do i match as close as poss size and depth. speakers are 10'' dia so depth will be the issue.
I would hope that a cross over could be bought  that matches mine but as as said i know nothing about this project.

(BUT WILLING TO BE ENLIGHTNED)

[cem_devecioglu]

Thats a route that i did not know existed, thanks guys.

Would more modern subs be an improvment or is it all in the electronics that the improvments are to be found, as this is one area that i would look to improve at the same time.

new model subs are definitely better..and also mids and tweeters.. but capacitors and inductors are same .. however, active speakers have different electronic components as they also have built in amplifiers..

Better is an opinion, the're are newer (better?) cars than a mig, but we all like them......that's why we're here!

 
 
I cant see any relevance.. sorry

You drive a renault.....of course you can't, and so you should be sorry!!
 

just check my signature

[cem_devecioglu]

You cant just chuck any old speaker and crossover in.

The speakers used will have been chosen to match the enclosure volume and characteristics, furthermore the crossover will have been designed to suit the speakers when mounted in the enclosure.

So in reality its a case of either get them re-coned (probably also wants the magnets re-magentising to) or get some modern ones. 

 
 
I have seen and examined many expensive speakers..  most of them even didnt have 2nd order crosovers..
 
 
any new model same size and impedance woofer will do the job imo.. but better bring the speaker to the shop and test with various models for better performance.. 

[Marks DTM Calib]

Mark, hi mate long time no speaky, hope your well, i take it you mean get new speakers compleat cabs and all, or if i buy new componants do i match as close as poss size and depth. speakers are 10'' dia so depth will be the issue.
I would hope that a cross over could be bought  that matches mine but as as said i know nothing about this project.

(BUT WILLING TO BE ENLIGHTNED)

Hi, good to see you here again! 

Way more complex than that as there are a number of the key factors whih should be matched and sadly we dont know what they are....

Such things as the equivalent Volume (Vas), free air resonance (Fs), total Q (Qts), electrical Q (Qes)  etc etc.....all very important to make them work well within the cabinet.

Hence probably not possible unless somebody is making some retro drivers to fit.

[Marks DTM Calib]

You cant just chuck any old speaker and crossover in.

The speakers used will have been chosen to match the enclosure volume and characteristics, furthermore the crossover will have been designed to suit the speakers when mounted in the enclosure.

So in reality its a case of either get them re-coned (probably also wants the magnets re-magentising to) or get some modern ones. 

 
 
I have seen and examined many expensive speakers..  most of them even didnt have 2nd order crosovers..
 
 
any new model same size and impedance woofer will do the job imo.. but better bring the speaker to the shop and test with various models for better performance.. 

Thats not a bad thing as every order added to the crossover brings in a distortion to the response........these days they often design the speakers to suit the cabinet (years ago it was a case of find some good drivers and design a cabinet to suit!) which means that have way more contol of speaker cut off.

[Marks DTM Calib]

Here are some of the basics of speaker design....

http://www.diyaudioandvideo.com/Tutorial/SpeakerBox/

[cem_devecioglu]

You cant just chuck any old speaker and crossover in.

The speakers used will have been chosen to match the enclosure volume and characteristics, furthermore the crossover will have been designed to suit the speakers when mounted in the enclosure.

So in reality its a case of either get them re-coned (probably also wants the magnets re-magentising to) or get some modern ones. 

 
 
I have seen and examined many expensive speakers..  most of them even didnt have 2nd order crosovers..
 
 
any new model same size and impedance woofer will do the job imo.. but better bring the speaker to the shop and test with various models for better performance.. 

Thats not a bad thing as every order added to the crossover brings in a distortion to the response........these days they often design the speakers to suit the cabinet (years ago it was a case of find some good drivers and design a cabinet to suit!) which means that have way more contol of speaker cut off.

Mr DTM,  6 db crossovers are ok if and only if you have very rare , high quality , wide frequency speakers.. which is usually not the case.. most of those speakers start distortion long before their specified max output because of unfiltered sound signal..      

[D]

You cant just chuck any old speaker and crossover in.

The speakers used will have been chosen to match the enclosure volume and characteristics, furthermore the crossover will have been designed to suit the speakers when mounted in the enclosure.

So in reality its a case of either get them re-coned (probably also wants the magnets re-magentising to) or get some modern ones. 

Agree.

[Kevin Wood]

Mr DTM,  6 db crossovers are ok if and only if you have very rare , high quality , wide frequency speakers.. which is usually not the case.. most of those speakers start distortion long before their specified max output because of unfiltered sound signal..    

You can't really generalise that much. As Mark said, drive units, cabinet and crossover are part of a whole. It's a bit like pistons, rods and crank on an engine. Change one without considering how they fit into the whole design and it just won't work.

Some designs can work with a gentle crossover, some need more aggressive filtering.. If the end result works, then the job is done, and how it's achieved isn't really an issue, but choosing drivers that avoid too complex a crossover will increase your chances of success.

I'm not familiar with these speakers. Some older designs still sound great today, others really show their age. Where these lie will determine whether it's worth getting them re-coned or not, IMHO, but you'll be very lucky to find modern drivers that work in the cabinet without a complete redesign and a good bit of experimentation.

Also consider that the undamaged drive units might not be performing at their best after 50 years...

[D]

Personally, I think its a lot of time and money to be throwing onto a pair of really old speakers unless they have a sentimental/personal value attached to it. If they were vintage Quads or Tannoy's then there would be a point as they would have a resale value, if you ever decide to change or get rid. I may be wrong but the OP's speakers are not a highly sought after pair. So go get a new set of speakers. You would be surprised at some of the bargains you can find on ebay, provided you use a good splattering of judgement and cynicism.

[Marks DTM Calib]

You cant just chuck any old speaker and crossover in.

The speakers used will have been chosen to match the enclosure volume and characteristics, furthermore the crossover will have been designed to suit the speakers when mounted in the enclosure.

So in reality its a case of either get them re-coned (probably also wants the magnets re-magentising to) or get some modern ones. 

 
 
I have seen and examined many expensive speakers..  most of them even didnt have 2nd order crosovers..
 
 
any new model same size and impedance woofer will do the job imo.. but better bring the speaker to the shop and test with various models for better performance.. 

Thats not a bad thing as every order added to the crossover brings in a distortion to the response........these days they often design the speakers to suit the cabinet (years ago it was a case of find some good drivers and design a cabinet to suit!) which means that have way more contol of speaker cut off.

Mr DTM,  6 db crossovers are ok if and only if you have very rare , high quality , wide frequency speakers.. which is usually not the case.. most of those speakers start distortion long before their specified max output because of unfiltered sound signal..    

Cem, as per above, thanks to the ability to specifiy and design the drivers on a per application basis, the crossover are often far more simple due to as Kevin states, the reality that there is so much more to the equation than the speaker response. 

A classis example is a sub design I saw some years ago, the enclosure had been designed (mainly thanks to the port) to give a controled 6dB roll off down to around 10Hz. The setup then used an active amp and a basic pre amp filter to compensate for this.

The result was a design that could take any old speaker yet gave an excellent flat response....

SMoke and mirrors?.....well actualy its physics ! 

[cem_devecioglu]

You cant just chuck any old speaker and crossover in.

The speakers used will have been chosen to match the enclosure volume and characteristics, furthermore the crossover will have been designed to suit the speakers when mounted in the enclosure.

So in reality its a case of either get them re-coned (probably also wants the magnets re-magentising to) or get some modern ones. 

 
 
I have seen and examined many expensive speakers..  most of them even didnt have 2nd order crosovers..
 
 
any new model same size and impedance woofer will do the job imo.. but better bring the speaker to the shop and test with various models for better performance.. 

Thats not a bad thing as every order added to the crossover brings in a distortion to the response........these days they often design the speakers to suit the cabinet (years ago it was a case of find some good drivers and design a cabinet to suit!) which means that have way more contol of speaker cut off.

Mr DTM,  6 db crossovers are ok if and only if you have very rare , high quality , wide frequency speakers.. which is usually not the case.. most of those speakers start distortion long before their specified max output because of unfiltered sound signal..    

Cem, as per above, thanks to the ability to specifiy and design the drivers on a per application basis, the crossover are often far more simple due to as Kevin states, the reality that there is so much more to the equation than the speaker response. 

A classis example is a sub design I saw some years ago, the enclosure had been designed (mainly thanks to the port) to give a controled 6dB roll off down to around 10Hz. The setup then used an active amp and a basic pre amp filter to compensate for this.

The result was a design that could take any old speaker yet gave an excellent flat response....

SMoke and mirrors?.....well actualy its physics ! 

I tought we were talking about normal speakers not the active ones   you are cheating

[cem_devecioglu]

yesterday, I searched for the speakers that I built in the past (too many and I sold them).. damn this analog photo machines .. none of the pictures are around

[Marks DTM Calib]

You cant just chuck any old speaker and crossover in.

The speakers used will have been chosen to match the enclosure volume and characteristics, furthermore the crossover will have been designed to suit the speakers when mounted in the enclosure.

So in reality its a case of either get them re-coned (probably also wants the magnets re-magentising to) or get some modern ones. 

 
 
I have seen and examined many expensive speakers..  most of them even didnt have 2nd order crosovers..
 
 
any new model same size and impedance woofer will do the job imo.. but better bring the speaker to the shop and test with various models for better performance.. 

Thats not a bad thing as every order added to the crossover brings in a distortion to the response........these days they often design the speakers to suit the cabinet (years ago it was a case of find some good drivers and design a cabinet to suit!) which means that have way more contol of speaker cut off.

Mr DTM,  6 db crossovers are ok if and only if you have very rare , high quality , wide frequency speakers.. which is usually not the case.. most of those speakers start distortion long before their specified max output because of unfiltered sound signal..    

Cem, as per above, thanks to the ability to specifiy and design the drivers on a per application basis, the crossover are often far more simple due to as Kevin states, the reality that there is so much more to the equation than the speaker response. 

A classis example is a sub design I saw some years ago, the enclosure had been designed (mainly thanks to the port) to give a controled 6dB roll off down to around 10Hz. The setup then used an active amp and a basic pre amp filter to compensate for this.

The result was a design that could take any old speaker yet gave an excellent flat response....

SMoke and mirrors?.....well actualy its physics ! 

I tought we were talking about normal speakers not the active ones   you are cheating

Not at all.....just highlighting the fact that the enclosure can be the dominant factor in the response characteristics and not the driver.

Another classis example was a design which did a similar thing and used no LF filter at all for the bass unit, by utilisinga  passive radiator and designing a multi port cabinet, the LF driver had a sharp cut off just belwo its own natural slope characteristics.

[Mr Skrunts]

Interesting thread, had never thought about having speakers rebuilt.

Modern speakers may well be good, but I personally would love to get my hands on a reasonable pair of wharfdale E50/70 or 90 speakers.

I like Mission speakers (the taller floor standing ones) from a few years ago but after hearing some Tannoy 603 speakers I went out and bought some Tannoy 609's.

But the one thing you have to remember is that everyones personal choice and home decor is so diiferent that the end result will be so different on one system to annother.

I used to have a pair of small wharfdale speakers, sounded ok in the house, but sounded a hell of a lot better in the car wired to the stereo and dumped on the floor behind the front seats facing the roof (and they could be placed outside the car at BBQ's and party's