My dad has a pair of Ditton 33s from new. He had them re-veneered when only a few years old in a darker colour to match the new furniture but knowing the carpenter who did the work I suspect they may well have been new cabinets. The tweeters were replaced about 15 years ago as both had failed, but not with originals. I would love to see how they perform with new cross-overs and my newer source and amp equipment (made a lasting childhood impression as I also ended up with proper Hi-Fi separates).
So when you wire two resistors side by side like that it halfs the resistance? I've been screwing that up. I guess it makes sense since wiring two 8ohm speakers in parallel creates a 4ohm load. I feel like a dummy
@@edjackson4389 Yes resistors in parallel will end up lower than the smaller value. Ie 2 x 8 ohm will make 4 ohm. The benefit is power rating. If you have 2 x 10watt resistors the power handling would be 20watt. Resistors in series sum. 1/R1 + 1/R2 = 1/Rt Or 1/8 (0.125) + 1/8 (0.125) = 1/0.250 1 divided by 0.250 is 4
Great video! I’ve had a pair of 33s for a couple years now. Never thought of even changing the internal wire being steel! I would like to have a go at recapping. Any advice and also what caps etc and where to buy would be appreciated. Or even what you would charge to do them?
I have a pair of KEF speakers with a T27 tweeter [ dated stamped 1975 ] and a SP1014 woofer the crossover is a KEF SP1015. I bought them about 30 years ago and have been in storage for the last 10 years. After watching your Videos I decided to open them up and inspect them, the speakers themselves still check out good, the coating on one of the cone's have some coating missing. The crossover i checked and to my dismay the tweeter + terminal is marked up and connected to the ground of the crossover ! I have replaced the caps but have connected the wires up as I found them [ advise is sought ? ] Also what should I do to the cone with the missing coating. Thank you for the great videos.
@@kayak1100 Hi. Its very common for tweeters to be connecting out of phase (reversed polarity). You see that a lot with the T27 as it tends to be crossed over quite high. The coating on the woofer is like PVA glue. I wouldn't really worry about it but you can touch it up with PVA on a fine brush. Some it goes white in places to.
Hi! Just discovered your channel - great stuff. I owned a pair of Ditton 44s in the mid 70s and would love to get my hands on another pair. If you have any idea where i may be able to get hold of a pair id be more than grateful if you could let me know please! All the best Steve in Somerset
Hi Steve. They appear on ebay but most are in poor condition. 9 time out on 10 They need a crossover rebuild and probably work to the tweeters. The covers are the other issue. If I come across a decent pair I'll let you know. I keep an eye out myself for cheap pairs to refurbish and sell on. Cheers. Matt
I have just acquired a pair of 332, are they really different from any point of view? Because I believe that the 332 were the evolution of the 32, the woofer seems different. I currently listen to it with an old accuphase e-203, I find them really cool without being aggressive. (im french, this is hard for me xD)
The 332 is quite different. I've never had a pair to look at. The midrange is very good I know that. I'm using one in my 44. The guy to compare the 33 and 332 is Kevin from the Ditton Works. He might read this hopefully.
With the values in the crossover they'd be about 600Hz and 5kHz. The Ditton 22, 33 , 44 and 66 all have very similar crossover points. You would never cross a woofer that size to the midrange at 3kHz. Midrange to tweeter at 8kHz, no way
@@haycrossaudio5474 Thanks for that! The numbers seemed wrong to me. I cremated the voice coil of the mid range driver in a cherished B&W 801F. I've been unable to source a direct replacement for the driver, but the the CD33 mid range driver is a near fit size wise so I'm going to try that. The B&W crossover was 360 and 3.8kz, so not a million miles away.
Ciao, first of all, congratulations, you're really good, I also have a couple of 33s. I've just done a recap of the crossover keeping the same specifications, I'd like to ask you what model of tweeter you used, because it seems to me that my 33s have a tweeter not present .... If you have any advice I'm listening thanks greetings from Venice Italy
Hi. The tweeters in these were the HF1001. Originally they would have been the HF1000. The HF1000 is quite weak. I've had a number of them in for repair. If you can find a good pair or of HF1001 then it's a good replacement
Ditton 22 & 33 are my all time fav Celestions. I was a bit of an idiot selling them
@@andyillingworth3905 you might like my next video 🤔
So was I
My dad has a pair of Ditton 33s from new. He had them re-veneered when only a few years old in a darker colour to match the new furniture but knowing the carpenter who did the work I suspect they may well have been new cabinets. The tweeters were replaced about 15 years ago as both had failed, but not with originals. I would love to see how they perform with new cross-overs and my newer source and amp equipment (made a lasting childhood impression as I also ended up with proper Hi-Fi separates).
So when you wire two resistors side by side like that it halfs the resistance? I've been screwing that up. I guess it makes sense since wiring two 8ohm speakers in parallel creates a 4ohm load. I feel like a dummy
@@edjackson4389 Yes resistors in parallel will end up lower than the smaller value. Ie 2 x 8 ohm will make 4 ohm. The benefit is power rating. If you have 2 x 10watt resistors the power handling would be 20watt. Resistors in series sum.
1/R1 + 1/R2 = 1/Rt
Or
1/8 (0.125) + 1/8 (0.125) = 1/0.250
1 divided by 0.250 is 4
Excellent video, very useful as I am restoring some speakers at the moment. I'd be interested to know which oil you used on the wood, nice result.
Ronseal Dark oak stain. Make sure the cabinets are sanded back, apply 3 coats minimum with a cloth for a nice even finish and sheen
Great video! I’ve had a pair of 33s for a couple years now. Never thought of even changing the internal wire being steel! I would like to have a go at recapping. Any advice and also what caps etc and where to buy would be appreciated. Or even what you would charge to do them?
Hi Michael. Drop me an email. I'd be glad to help you with your 33s
I have a pair of KEF speakers with a T27 tweeter [ dated stamped 1975 ] and a SP1014 woofer the crossover is a KEF SP1015. I bought them about 30 years ago and have been in storage for the last 10 years. After watching your Videos I decided to open them up and inspect them, the speakers themselves still check out good, the coating on one of the cone's have some coating missing. The crossover i checked and to my dismay the tweeter + terminal is marked up and connected to the ground of the crossover !
I have replaced the caps but have connected the wires up as I found them [ advise is sought ? ] Also what should I do to the cone with the missing coating. Thank you for the great videos.
@@kayak1100 Hi. Its very common for tweeters to be connecting out of phase (reversed polarity). You see that a lot with the T27 as it tends to be crossed over quite high. The coating on the woofer is like PVA glue. I wouldn't really worry about it but you can touch it up with PVA on a fine brush. Some it goes white in places to.
Ah great video mate.. what a result, saved a pair of 33’s 👍👍
There pretty dam good.
Another top job 👍👍
Hi! Just discovered your channel - great stuff. I owned a pair of Ditton 44s in the mid 70s and would love to get my hands on another pair. If you have any idea where i may be able to get hold of a pair id be more than grateful if you could let me know please! All the best Steve in Somerset
Hi Steve. They appear on ebay but most are in poor condition. 9 time out on 10 They need a crossover rebuild and probably work to the tweeters. The covers are the other issue. If I come across a decent pair I'll let you know. I keep an eye out myself for cheap pairs to refurbish and sell on.
Cheers. Matt
I have just acquired a pair of 332, are they really different from any point of view? Because I believe that the 332 were the evolution of the 32, the woofer seems different. I currently listen to it with an old accuphase e-203, I find them really cool without being aggressive. (im french, this is hard for me xD)
The 332 is quite different. I've never had a pair to look at. The midrange is very good I know that. I'm using one in my 44. The guy to compare the 33 and 332 is Kevin from the Ditton Works. He might read this hopefully.
@@haycrossaudio5474 Thanks for the answer😃
Do you know what the crossover frequencies for the midrange driver are? HiFiEngine quotes these as 3khz and 8khz which seems awful high to me.
With the values in the crossover they'd be about 600Hz and 5kHz. The Ditton 22, 33 , 44 and 66 all have very similar crossover points. You would never cross a woofer that size to the midrange at 3kHz. Midrange to tweeter at 8kHz, no way
@@haycrossaudio5474 Thanks for that! The numbers seemed wrong to me. I cremated the voice coil of the mid range driver in a cherished B&W 801F. I've been unable to source a direct replacement for the driver, but the the CD33 mid range driver is a near fit size wise so I'm going to try that. The B&W crossover was 360 and 3.8kz, so not a million miles away.
Ciao, first of all, congratulations, you're really good, I also have a couple of 33s. I've just done a recap of the crossover keeping the same specifications, I'd like to ask you what model of tweeter you used, because it seems to me that my 33s have a tweeter not present .... If you have any advice I'm listening thanks greetings from Venice Italy
Hi. The tweeters in these were the HF1001. Originally they would have been the HF1000. The HF1000 is quite weak. I've had a number of them in for repair. If you can find a good pair or of HF1001 then it's a good replacement
Great job!
Why I don't have a friend like you 😅