I don’t know. It’s not impossible for those who know to work out why it’s there. But I’ve gone for the other option now that Galu kindly helped out with and suggested.
Thanks for all the input, everyone. I just wish when they do these ads they would clearly state what is exactly what, other than some garbled description.
Thanks for all the input, everyone. I just wish when they do these ads they would clearly state what is exactly what, other than some garbled description.
The one Galu suggested also came in at £8.26 for two (cheapest I could find) as opposed to the Amazon £14.99. Prob on a slow boat from China, but I’m in no rush. As long as it works ok. It’s basically the same crossover without the confusion, and it actually says what the frequency divisions are in this ad.
https://www.ebay.co.uk/itm/388040539772
Job done 👍
https://www.ebay.co.uk/itm/388040539772
Job done 👍
And for those who thinks it's just a piece of xxxx. Well, it's all subjective anyway 😀
Just ask this guy 😉
Just ask this guy 😉
Be prepared to add a series attenuating resistor if, for example, the tweeter turns out to be too loud.
You can always return here for the relevant advice if necessary.
Trying to be kind sometimes can misslead people and make them waste money. Imo a clear and definite answer will help much more. Some may be so politicaly correct to think this is rude. Discussing his wrong picks will not help him.
There are countless threads describing why NO universal x-over EVER works. All what you will get for your money is the perfect proof of this fact.
If you want a x-over, design one or look for a proven design.
As a "I don't know and don't care" DIYS person, the only way to do a useable speaker is to copy an existing design. You have the illusion that your combination of 100% wrong parts will give you maybe 50% of a perfect speaker. You are dead wrong!
If you don't blow the drivers with such useless Chinese junk, they will sound awfull and insult anyones ears listening to them.
So please, stop and try to do it right. Active crossover and a measuring microphone would be you fastest and only way to something working. Then, there are many nice passive projects out there you can copy and that will not cost more than the money your are going to waste. Just ask here, be prepared to answer some questions and you will have a great chance to be a successfull first time builder.
There are countless threads describing why NO universal x-over EVER works. All what you will get for your money is the perfect proof of this fact.
If you want a x-over, design one or look for a proven design.
As a "I don't know and don't care" DIYS person, the only way to do a useable speaker is to copy an existing design. You have the illusion that your combination of 100% wrong parts will give you maybe 50% of a perfect speaker. You are dead wrong!
If you don't blow the drivers with such useless Chinese junk, they will sound awfull and insult anyones ears listening to them.
So please, stop and try to do it right. Active crossover and a measuring microphone would be you fastest and only way to something working. Then, there are many nice passive projects out there you can copy and that will not cost more than the money your are going to waste. Just ask here, be prepared to answer some questions and you will have a great chance to be a successfull first time builder.
Active crossovers here we go 🙄
Yes of course they are great, but as explained earlier this is a budget project and one that's not going to fall prey to, let's throw everything at it. Some of us are just doing this for fun sometimes, and not everything has to turn into the next BBC ls3/5a white paper for everyone to revere or criticize.
And thanks Galu, I might come back here for advice on tweeter / mid attenuation etc.
For those who bothered to answer or are actually interested in my project I will expand, of course you don’t have to read you can just move on.
I picked up an old pair of speakers but in need of restoration. They are a pair I was very familiar with, as a friend of mine owned a set many years ago (30++ 😉 ) when we were teens. They were available then off the shelf from what used to be Tandy stores in the UK before they all closed. He had them for many years and used them with many amps as well. And me and many other mates would often gather listening to whatever was cool back then, Pink Floyd, Jean-Michel Jarre, AC-DC whatever 🙂 (pretty much what is still cool any decade then it seems).
We spend many an hour listening to them. They were no real revered audiophile classics or anything. I later went on to sample all and everything in that class later in life. But I still had memories of some of the earlier days in my development and the love of audio / music.
Anyway. I came across an old pair locally in need of help, and as I’m having a major health issue at the moment thought why not bring them home to heal and get them back singing, and try to get them better, while I do the same for myself.
They were never amazing speakers, but I still have some fond memories of certain tracks (loud) from my youth on them. And with a bit of tweaking, think they can be improved slightly. And given their size and the fact they can output some heft and give a big sound and with reasonable finesse, thought why not.
I always thought their tweeter was the biggest weakness, and luckily or unluckily for me on arrival home both tweeters were dead 😀 Midranges still sound actually decent. Bass’s or surrounds then were completely rotten.
I changed the tweeters, to a decent peerless I already had here (I like them anyway). It’s a 98db horn though, so I thought it would need an L-pad, which I also added. But after opening, I found its rather pathetic crossover was also not letting treble through on one speaker. So a new crossover has now been sourced (thanks Galu). The cheapest one I could find actually, and it still looks like an upgrade 😀
The whole point of the project though is just to get them back in action without going over the top upgrading everything. I’ve done the bass surrounds and so far things are starting to sound ok again. I’ve also lined the inside with scrap foam, to give them a bit less of a boxy sound, and so far they’re coming along ok, actually.
Got some photos here of the mess they were and how they are starting to develop. So that’s the story 🙂
I was surprised to find though, that the hot tweeter I got is barely audible, at least in the crossover that lets some treble through. The mids and bass are much louder. But I’ll reassess when the new crossover comes.
Yes of course they are great, but as explained earlier this is a budget project and one that's not going to fall prey to, let's throw everything at it. Some of us are just doing this for fun sometimes, and not everything has to turn into the next BBC ls3/5a white paper for everyone to revere or criticize.
And thanks Galu, I might come back here for advice on tweeter / mid attenuation etc.
For those who bothered to answer or are actually interested in my project I will expand, of course you don’t have to read you can just move on.
I picked up an old pair of speakers but in need of restoration. They are a pair I was very familiar with, as a friend of mine owned a set many years ago (30++ 😉 ) when we were teens. They were available then off the shelf from what used to be Tandy stores in the UK before they all closed. He had them for many years and used them with many amps as well. And me and many other mates would often gather listening to whatever was cool back then, Pink Floyd, Jean-Michel Jarre, AC-DC whatever 🙂 (pretty much what is still cool any decade then it seems).
We spend many an hour listening to them. They were no real revered audiophile classics or anything. I later went on to sample all and everything in that class later in life. But I still had memories of some of the earlier days in my development and the love of audio / music.
Anyway. I came across an old pair locally in need of help, and as I’m having a major health issue at the moment thought why not bring them home to heal and get them back singing, and try to get them better, while I do the same for myself.
They were never amazing speakers, but I still have some fond memories of certain tracks (loud) from my youth on them. And with a bit of tweaking, think they can be improved slightly. And given their size and the fact they can output some heft and give a big sound and with reasonable finesse, thought why not.
I always thought their tweeter was the biggest weakness, and luckily or unluckily for me on arrival home both tweeters were dead 😀 Midranges still sound actually decent. Bass’s or surrounds then were completely rotten.
I changed the tweeters, to a decent peerless I already had here (I like them anyway). It’s a 98db horn though, so I thought it would need an L-pad, which I also added. But after opening, I found its rather pathetic crossover was also not letting treble through on one speaker. So a new crossover has now been sourced (thanks Galu). The cheapest one I could find actually, and it still looks like an upgrade 😀
The whole point of the project though is just to get them back in action without going over the top upgrading everything. I’ve done the bass surrounds and so far things are starting to sound ok again. I’ve also lined the inside with scrap foam, to give them a bit less of a boxy sound, and so far they’re coming along ok, actually.
Got some photos here of the mess they were and how they are starting to develop. So that’s the story 🙂
I was surprised to find though, that the hot tweeter I got is barely audible, at least in the crossover that lets some treble through. The mids and bass are much louder. But I’ll reassess when the new crossover comes.
Thanks for putting your project into context. 😎
I've found a pic of the rear of the midrange driver from a Memorex 305 that clearly shows the markings "Tandy, 8 ohm, 20 W".
The Memorex 305 appears to be rare as there is a paucity of information about this speaker on the net.
Good luck with the renovation. It looks like good fun and a great platform for experimentation.
I've found a pic of the rear of the midrange driver from a Memorex 305 that clearly shows the markings "Tandy, 8 ohm, 20 W".
The Memorex 305 appears to be rare as there is a paucity of information about this speaker on the net.
Good luck with the renovation. It looks like good fun and a great platform for experimentation.
Yeah, that’s the mid, the woofer says the same, Tandy 8 ohm but 100 watt. The mids don't sound too bad, actually. The tweeter I really had no intention of changing with the oem as I never really liked it anyway. It’s one of those nasty mylar domes, I hate those in just about ever application I ever heard one in. Apart from the LS3/5A one of my favourites, but that’s a different league to what these budget speakers used to have, the JPW was another one that used the crappy mylar, like in this one iirc. Metal have always been my favourites, and I like horn tweeters as well, so the Peerless I had here fitted the bill nicely, abet with a bit of jig sawing and mutilation of the cabinet.Thanks for putting your project into context. 😎
I've found a pic of the rear of the midrange driver from a Memorex 305 that clearly shows the markings "Tandy, 8 ohm, 20 W".
The Memorex 305 appears to be rare as there is a paucity of information about this speaker on the net.
Good luck with the renovation. It looks like good fun and a great platform for experimentation.
I really don’t want to spend much on them, I had them for virtually nothing, and so far I’ve done everything on a shoestring. Even the surrounds cost me less than a fiver, I think from Ali. And the big 12 inch cones are sounding sweet again and moving a lot of air when pushed.
These are like you say a great project for experimentation though. A big 3 way is basically where many speakers are perhaps considered the best a speaker design can be, possibly. Of course these are not, I’m just saying that is the topography many of the best designs can be referenced against. Even some of these best two ways use a larger midrange to handle the bass and the mids and I read larger midranges are not always ideal for mids.
I came across another thread where they were actually saying it's better to employ a smaller midrange.
https://www.diyaudio.com/community/threads/current-best-5-midrange-driver.378212/
Of course, speakers are all about compromises anyway. I was thinking of perhaps maybe even upgrading the mids to something that was well reviewed here.
https://feleppa.com.au/speakermeasmid.html
Something like this one, and it comes in cheap on that list as well.
https://www.digikey.co.uk/en/produc...FGZVdJDCXq98vDcxlLRICR8M4dng-T9IaAkmQEALw_wcB
But I might just see what can be done with this one first, it might sound ok after tweaking. And I want to keep to that shoestring budget 🙂 I sure you’ll understand knowing plenty of Scotsmen up there and how frugal many are 😀 I’m from Wales myself even though my flag shows me as British but know plenty of Scotsmen and their wallets 😉
try a knock test on the box if anything drums or rings now's the time to add braces and damping, many a commercially produced box can helped in that aspect.
That reminds me of an old postcard from my childhood!
P.S. On a Scottish Flag Day you were expected to put coins in a charity collection tin in exchange for a wee paper flag you'd then pin to your lapel in order to show you'd donated. Note the lonely charity worker at the bottom right of the postcard!