It looks a lot like one of the speakers in the Grundig line of ‘Grundig HiFi box Lautsprecher’. For instance the Grundig HiFi box 740: https://www.radiomuseum.org/r/grundig_hifi_lautsprecher_box_740.html But it probably is a different model. What I can say is that Grundig produced several speakers, with all wood front grilles. And with the slits horizontally. The 740 and 525 are examples of this design. have a look over here: www.hifi-wiki.de/index.php/grundig_box_525 This Wiki has an over of most grundig loudspeakers with specs and pictures. By the way, most Grundig all wood loudspeakers with horizontal slits, were produced in 1970.

Reminded me of some Telefunken speakers I had in 1970… could be one of those: Login to view image hx

On second thought - the „slots“ don‘t go from end to end. so - obviously not that one, sorry

@beo3000fan

• Can you share more pictures?
• Also one from the backside?
• Are there any labels visible?

Quick search on Google, after reading KolfMAKER suggestion. It looks like a Grundig speaker box type 45. I can only spot few differences. It should be placed vertically, a metal Grundig badge should be attached on the bottom right side of the front slitted surface and the standing legs seem to be missing.   Maybe an expert of vintage Hi-Fi can clarify. Thanks. Olivier

Thanks for sharing your idea Olivier! The Grundig box 45 comes close, but is not the same. The speaker we are looking for has horizontal slits, instead of vertical. Also, the front panel is completely integrated with the speaker casing. It does not look like it can be taken off to access the drivers. This looks different on the Grundig 45. That’s why I think it is interesting to see the backside. (Maybe, it is not a loudspeaker;-)

Wow, thanks for all the answers! Hereby some more pictures Login to view image Login to view image

Hi @Beo3000fan Thanks for the extra pictures. Can you do following?

• Make a picture of the backside-panel (the one you took away to see the inside)
• Let me know the measurements of the loudspeaker box (W x D xH)

I´ll write down the size of the speaker. The back panel I don´t know, it came as in the pictures. The gray back panel offer the possibility to "store" (wrap around) the speaker chord, so maybe the gray panel is the back panel?