I never had to service them. Send the link to the website, please. I read somewhere that there is a hair drier trick if the Mylar gets slack in transit?I just read up at their site about DIY servicing the Eminent speakers........... it doesn't sound that straightforward !
And with that flaw in the design with the woofer, I'm not so sure about them.
How often do they need servicing?
Oh sure...that's instructions on replacing the tweeter drivers if you blow them, I guess. This would be like replacing the Magnepan ribbon, which I had to do. Very easy, the speakers are open front and back, two wires, can be done without moving the speaker at all. About 1/2 hour of work per side.What ? You have to use a hair dryer to repair a fault from transit damage. Those speakers sound a bit fragile.
I'm really going off the idea of these.
Surprised you don't know about all the service instructions on their site, let me point you to it
http://www.eminent-tech.com/main.html
Is that them?
I owned both 57 and 988 and worked on both.After being on garden leave for 7 months, I just started a new job this week and haven’t had time to look at PFM until now...
Dimitry - are 988s different from 63s? When the panel glue failed on my 63s there was no need to turn them over - simply remove top, sock, and away you go.
Replacing binding posts and the input capacitor does require speaker to be inverted, but is equally straightforward.
Both of above I did in my living room, without scope...just screw drivers and soldering iron. There are threads in DIY or Classic from me confirming both.
As for 1950s design, I think you’re confusing 57s with 63s? 57s are completely different to 63s, and panel repair is pretty much out of scope of DIY on the 57 (IMO and experience, I do know some people have done it, but don’t consider it within capabilities of most). 63 and later panels address this design limitation in my view, that allow the likes of you and I to also maintain them.
Honestly, if you could rebuild those super tweeters you kindly sent me (soon to be fixed finally I hope!), then I really don’t understand your aversion to servicing the 63s. However, to be clear I only paid £300 for my pair 2nd hand pair, am a complete cheapskate, and would write them off before spending a large sum on 3rd party service
Having owned both 57s and 63s, I cant imaging not owning a pair of some sort! And 63 and later models are much simpler to maintain...well, panels at least
Bad luck. It's not a good time of year for it to happen, is it? Hope you get it fixed easily.
Obvious and easily observed evidence clearly contradicts your assertion that home service of Quads is within practical reach of most owners. The "invisible hand of the market" demonstrates that a number of specialty businesses are setup near any reasonable concentration of Quad owners in order to perform the "easy" self service you describe. This is absent for any other speaker brand. Ergo we can conclude that:Really Dimitry, I realise you have a drum to bang but “public service” it is not.
From personal experience, the panels on both 57s and 63s can be replaced at home by any reasonably competent person with decent soldering skills. I’ve done it a number of times on each model (too many times, which is one reason I moved to Martin Logans). The main requirements are common sense and a reasonably methodical method of working. Admittedly this will mean that some won’t be able to service their own Quads.
Of course my practical, and successful, experience obviously doesn’t count for much compared to people who have partially dismantled the speakers and discovered they weren’t up to the job. That is a reflection more of them than the speakers.
Having owned one pair of 57s and two pairs of 63s my tuppence worth is if buying secondhand factor in the costs and inconvenience of a full service (unless their policy has changed Quad became reluctant to sell spare panels) or buy new and hopefully have 10 or more years of trouble free sublime listening. They are expensive but if compared with comparable electrostatics or perhaps MBLs they could almost be considered a bargain .
Anything is possible, given time, acquired skill and patience. One can service and repair one's car at the curb with essentially hand tools. One can learn how to sweat pipes well and do all the plumbing repair. One can become an amateur electrician, learn the local code and repair the house wiring.The biggest hassle servicing quads is the space they take up once stripped. Anything short of a new membrane is easily home serviced by any moderately practical and methodical bodger.
Quad is a very special speaker, which requires special maintenance, well in excess oftypicalmy consumer expectations.
I found the process of boxing the speakers very laborious and very hard on my back. Dragging them out from the house and putting them on the shipping pallet was equally back breaking
Separating the top of the speaker from the bottom was difficult and extremely unwieldy.
My irritation is not with the speaker as such, but with the company's utter inability to make it into a reliable, sellable product, either through a reliability redesign or through a reparability redesign for 50 YEARS.
In my experience, 988 circuit boards were of generally poor quality both in terms of manufacture and solder joint quality
Your first three attempts at retorts dont have any identifiable information content, so there is nothing to respond to.Sorry I was referring to the Quad father.
Speaking of whom
Though you are not a consumer you are an engineer working at the cutting edge of science (or so you keep telling us), this seems to preclude you from the ability to use a Phillips screwdriver and a soldering iron which are the only tools required to maintain the Quad ESL.
Perhaps you are a software engineer ?
Perhaps philately would be a more suitable hobby then ? 20Kg is the average weight of any top class speaker many weigh considerably more.
Slacking off 8 x 4mm nuts must be extremely challenging to an engineer of your esteem.
Which is why so many Quad 57's are still in use after 62 years
Pray enlighten us how these solder joints are of inferior quality.
This is an input board I have removed from a Quad 63.
It is obvious you have not seen an actual high quality modern PWB.