Hi,
Does anyone know anything about these full range drivers?
They're a Rola Plessey 8inch, model C8MX00 and my googling tells me they're a 1970s Australian driver, but not much more. I'd love some more specs on them if anyone knows anything.
Also, does anyone recognize the logo on the cabinets (see the picture)?
I found these speakers on the hard rubbish (kerbside rubbish collection) but the drivers look to be in good condition. The box was a smallish vented box. Of course they're probably not as good as the pair of B&W DM330 speakers I found on the hard rubbish a few months ago 🙂
Does anyone know anything about these full range drivers?
They're a Rola Plessey 8inch, model C8MX00 and my googling tells me they're a 1970s Australian driver, but not much more. I'd love some more specs on them if anyone knows anything.
Also, does anyone recognize the logo on the cabinets (see the picture)?
I found these speakers on the hard rubbish (kerbside rubbish collection) but the drivers look to be in good condition. The box was a smallish vented box. Of course they're probably not as good as the pair of B&W DM330 speakers I found on the hard rubbish a few months ago 🙂
Attachments
Good find. I'll take them if you can't find a use for them 
!
They were a pretty good driver for the time, running fullrange from 45-50Hz up to 12K with not too many peaks and troughs in the response.
Do they work?
!They were a pretty good driver for the time, running fullrange from 45-50Hz up to 12K with not too many peaks and troughs in the response.
Do they work?
Re:C8MX
I have a few NOS C8MXs and some other similar ones from 70s, (can't recall exact model, but may be 8PX???). In the 70s I built a similar slimline enclosure as described in Electronics Australia mag. It had a series of slots on the back of the enclosure and was lined with 1/2" felt--sortof an aperiodic vent. I remember it sounding OK, but that may be selective memory ;-) I would appreciate any plans for ROLA speakers or pointers to where I might find them as I am interested in full-range drivers, perhaps with helper tweeter on OB or aperiodic box. TIA
Regards
Ozziozzi
I have a few NOS C8MXs and some other similar ones from 70s, (can't recall exact model, but may be 8PX???). In the 70s I built a similar slimline enclosure as described in Electronics Australia mag. It had a series of slots on the back of the enclosure and was lined with 1/2" felt--sortof an aperiodic vent. I remember it sounding OK, but that may be selective memory ;-) I would appreciate any plans for ROLA speakers or pointers to where I might find them as I am interested in full-range drivers, perhaps with helper tweeter on OB or aperiodic box. TIA
Regards
Ozziozzi
Hey simply, that info sheet is a good one. Were there any more like that around, or just the one?
I might have to run a search to see if there's any more like that. Love the twin slot version...
I might have to run a search to see if there's any more like that. Love the twin slot version...
Thank you Richard for your kind offer to scan and share plans. I sent you an email via diyAudio with my home email address--hope it got through to you. Re: 70's speakers, Magnavox 8WRs are another good type to grab if you see them.
Cheers Ian
Cheers Ian
Ian, I emailed some docs through this morning ( at least I think i did? lunatic morning at work) did the PDF get to you? If not I can send them again. Regarding the Magnavox 8WRs, I am getting rid of some
MAGNAVOX 8WR130's at the moment on a 'certain online website'. I have too many 'projects' on the go, so I am cleaning out the shed.
I came back from a holiday in Japan last year with a hole bunch of speaker drivers, Fostex & Aurasound drivers are cheap over there compared to Australia. Cheers, Richard.
MAGNAVOX 8WR130's at the moment on a 'certain online website'. I have too many 'projects' on the go, so I am cleaning out the shed.
I came back from a holiday in Japan last year with a hole bunch of speaker drivers, Fostex & Aurasound drivers are cheap over there compared to Australia. Cheers, Richard.
Dear Richard, the PDF file did arrive. Thanks very much. Now all I need is someone else to pay for my trip to Japan...
Have fun with the Fostex's etc.
Cheers
Ian
Have fun with the Fostex's etc.
Cheers
Ian
Dredging this thread up from the past 😉
I just picked up a couple of awful cabinets from the rubbish with pristine Plessey C8MX 3.5 ohm drivers in them. I guess these are the same units as discussed except for the impedance?
8" with whizzer cone.
I also scored an old radiogram console with a little ECL82 tuner/amp and a Rola 12K speaker which has the matching transformer attached. Anyone have specs on that driver? It doesn't appear in the Rola PDF I have.
Maybe the basis for a tube sub to go with the C8MX and a KSN1038 piezo tweeter on my little ECL86 stereo amp? 😎
Gary
I just picked up a couple of awful cabinets from the rubbish with pristine Plessey C8MX 3.5 ohm drivers in them. I guess these are the same units as discussed except for the impedance?
8" with whizzer cone.
I also scored an old radiogram console with a little ECL82 tuner/amp and a Rola 12K speaker which has the matching transformer attached. Anyone have specs on that driver? It doesn't appear in the Rola PDF I have.
Maybe the basis for a tube sub to go with the C8MX and a KSN1038 piezo tweeter on my little ECL86 stereo amp? 😎
Gary
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