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Did you contact Dan?

Another investing and enjoyable video. So refreshing developing a great sound using speaker units that you judged provided great performance at a reasonable cost.

I had a couple of proac speakers in the past the d2 and the 118 the d2 were good but not as good as the celestion county I bought of you when I upgraded I know where to go ❤

It would be interesting to see you including the resistive port arrangement (drinking straws) in some of your own builds. I do like the way this controls / loads the bottom end.

Afternoon Matt👍👍

You're on a roll! Regarding renovating tweeters, I replaced the ferrofluid in mine, but I'm not sure they are as good as they could be, sound a bit rolled off. Are there different viscosity ferrofluids?

Hi Matt, I just started watching your video :)

Listening to these now. Really lovely sounding. Beautifully detailed and crisp top end. Male vocals have body and depth. They dissappear to being so narrow. Good bass for such a small cabinet. Very agile. Nothing offensive at all. They still need to break in but I'm a very happy man so far ❤

Goodness… never expected to see these again. I had a pair as a student (many years ago) powered by my NAD amp. They sounded amazing from memory!

So much of this stuff from the late 70’s were rewriting the english manufacturing rule book as a departure from the high coloration wardrobes coming out of the main stream back then. The issue was that there were only a handful of driver manufacturers trusted and cost effective enough to allow the manufacturers to make money at those price points after dealer margin and shipment. The biggest issue was fear of charging the correct price for products so consequently many players went out of business relying on their overdrafts. It all got shook up when the Sansui mission celestion deal happened and the Sl6 appeared along with the sl700 finally bringing the importance of measurement and science to a world which used golden ears for too many years. It was a well known issue in the hi fi industry that the danish and Europeans were also capable of making speakers. Most recently China has affected the component market heavily. FFT, impulse response real-time RTA and accurate distortion analysis is getting us closer but we are still a long way off folks, a long way.

They look fantastic Matt 👍🏼

No subtitles available.😢 Otherwise always.

Hi, If you get the time can you please tell me what Peerless unit you've used there?

I had a pair of Pro9-TL speakers which came with the Audax tweeter. The D25 meant the dome was 25mm and the 12.9 meant the face-plate was 12cm x 9cm. They also made a less common version which was functionally identical but had a circular face-plate (can't remember the type ID).

Another great video! Interesting to see yet another speaker getting new life. Those Kef B200 8" bass drivers seemed popular in the 70's. I have them in my Kef Reference 104ab and I like them. Magnet is bigger than I was expecting.

Liqui moly makes a spray to rejuvenate rubber. Good for surrounds.

Such a brilliant job on the Celestion Hadleighs, a really enjoyable watch. It’s great to see expertise keeping old but good technologies alive.

Just picked up a pair from a 2nd hand store for $10 new zealand dollars. Hopefully they're working

Those boxes look an awful lot like a DM4. Did they outsource all the parts?

This piqued my interest. I have a pair of Celef Min Pro SM. There is a dearth of reliable information about them. My ones had a Peerless tweeter and no name paper cone woofers. The foam was falling apart, so i replaced both drivers with the same ones as used in Musical Fidelity MC4, an Elac metal dome (the UK Elac and not the German company) and Audax TPX woofers. Not knowing anything about crossover networks, I just replaced the drivers. By heck they sounded great with my monster 300w monoblocks ( Rauch kit). I kept the old drivers and intend to repair the woofers. Infinite baffle, although I did try porting them, but ended up refitting the removed circles with a bit of car body filler for the gaps. I've got a hifi yearbook from some time in the 70s that mention them.

Nice job matt all the best

Hi Matt, very interesting speaker. Never heard of this brand. Wow to the woofer condition. Looking forward to seeing what you do with them :) Thank you!

What version of the B200 is that? The magnet looks big for SP1014. Also, is the crossover board a standard Falcon Acoustics part?

Yes CELEF morfed into Pro Ac, I remember liking them rather a lot - if timing had been different I would have bought some. The straws were to reduce port noise and provide resistive damping if I remember correctly.

I love all the multicoloured straws dangling out of the back of the port, hahaha, my favourite part of this speaker by far! That gold cap is interesting I think it may be a paper type capacitor. I've never tried Bovril before but I've heard it mentioned quite a lot, I might have to give it a try based on your description. Very interested to see more on these speakers.

Hi Matt, do you have a soldering iron recommendation please? Your vids are inspiring me.

One of my favourites, I in fact have owned two pairs of PE1’s over the years. Lovely design and construction and the resistive port loading is one of my favourite port implementations. I first saw Celef / Proac speakers around 1980 when Stewart Tyler introduced his first Proac model, the EBS which incorporated early drivers from ATC (bass & midrange) later followed by the Studio series. That super tweeter in the PE1 was made by Motorola from memory!

They look great, Did some Heybrook Hb2 this year, sprayed some staple strips black look so much better.

Good to see a speaker with a wood colour baffle. Please don't use velcro on these 😂

What a really nice looking pair of speakers! I've not heard of CLEF before, must have been one of the many UK manufactures that sprang up in the late 70's / early 80's. They deserve to be brought back to life. I think I remember those super tweeters from my youth in the late 70's, as I remember they were the cheapest Motorola piezo tweeters - available from Maplin and many others.

I'm in west Wales, cats and dogs too, plus we've got a storm with 80mph winds on the way tomorrow. Batten down the hatches. Interesting to see a Celef speaker, I remember them from back in the day, not the one with the piezo though. Top job on the Hadleighs by the way.

Hi Matt, What did you use on the woofers and does it leave any residue?

I absolutely love those woofers too

Afternoon Matt👍👍

Hi Matt, welcome back! You have been missing in action :) We miss you, mate. Lovely watching you show us your skill set. The woofers do have a deeper cone, unlike what I've ever seen or noted before in other speaker woofers, to be honest. As always, thank you for yet another super informative video.

I wish you would have mentioned the bloody metal badges about three months ago. Luckily I didn't blow anything up, but had me thinking hard for a while what the problem was.. :) Great stuff thanks for the vids.

Is it difficult to find a midrange replacement. Is there an alternative. Cheers.

Hi Matt, I just bought from you and very exited to hear them. You can thank Kelvin for starting the rabbit hole that lead me here. Regards Mark

Never seen speakers used in any house , in a room devoid of furniture , other components and tables/racks chairs and a tv set. In other words , why measure a speaker in a non representative enviroment ? Im not wishing to seem in any way negative , i just was trying to think of he reason. If i set up one of the sports suspension kits on the old GTI cars i worked on . On a smooth road with ultra grippy tarmac, when on the real roads , with iffy tarmac , camber , dips humps and surface issues , the car would be super skittish and for aa normal driver , unenjoyable . As a modifier i would favour a set up that worked well on the road , but ultimately the outright performance (grip in corners) was compromised . Is there a similar thought process with hifi, or does the inner "audiophile" demand anechoic perfection and then make judgements based on the speakers integration quality with the room , rather than actually what its doing in harmony with the room ?

Having had kids, I know exactly how a binky and a pen get inside a loudspeaker... that port looks like a perfect opening to shove things into and watch them disappear!

Picked up a pair of these yesterday, I replaced the woofers with Kappa 90 ones. It sounds really good now. Thanks for sharing!

Thank you for these videos. I bought a pair of these speakers recently. They actually have really good woofers but there is a hole in the midrange that is pretty noticeable of axis as you diagnosed. If I were in the UK I would definitely have sent these to you for an upgrade, but unfortunately I am across the pond in Canada, so I will have to redo the crossovers myself. I was wondering if there is a part 3 coming soon? The driver responses explain a lot but I was wondering if you did an impedance sweep for these drivers?

Sounds really natural and balanced. Be good to hear more clips, particularly of your new range

Really does look brilliant

Beautiful workmanship Matt!

Hello, I am looking for a pair of speakers for my Pioneer SA-6500 II amplifier 30W per channel, I have this KEF as an option and Yamaha NS-10M, which one you recommend to me? Greetings from Honduras, Central America.

@27.40 the gritty voice coil. Carefully cut the centre cap off , and with a vacuum hose sook out the bits from the centre coil , you will be amazed at how much of the "grit" is pieces of rust and white metal tarnish that's come off the basket and been drawn through the suspension concertina. And sometimes the coil is just melted from rock music through a midrange driver in a Diddy cabinet. Worth a try. Before binning it .

Hi Matt, if I understand correctly you only ship speakers in England. Because of the risk.

ATC Part 1&2 informative and enjoyable. Always a pleasure to watch and listen to your videos.

Very brief snow shower down here in Cornwall but nothing settled. Hope the workshop is warm Matt, mines 'king freezing !!