Rebuilding Polk Monitor 7C W/SL1000 To Accept Peerless Tweeter?

Gardenstater wrote: »

I can tell you that I am certain that this one is Made In Denmark. Do you see a smooth silver back plate with flats? Me neither lol. There are no Chinese made Peerless KO10DT tweeters.





Here is about the latest production date I have seen; 8th week of 1985. I see a back plate indention. I also see a "Made In USA" sticker.

Hi,
Thanks for the pics, so my assumption that all Denmark Peerless, had flats and that backplate is wrong but...

Have not seen any "Made in USA", with the flats???

Does not mean there are not any, but can't find one or seen one???

That would lead me to conclude, if it has the flats on the Magnet, it is Danish?????

The other fly in the ointment is, was the Danish Peerless, better than the USA Peerless???

Gardenstater wrote: »

seagiant wrote: »

Hi,
Sooooo....Unless it is stamped, "Made In Denmark", there is no way to really know?

I maybe wrong, but I'm going to make the call that the pair I'm looking at is Danish from what I have seen...

The other thing we do not know about or I don't anyway, was...

Were there parts from Denmark shipped to the US and then built by Polk?

Could be a few possibilities there and not the first time by a long shot.

On what are you making that call 😉 ? Something someone on the internet said?

All I can say is that, of the ones that I have seen with Made In Denmark, either the stamping I showed you, or the blue and white stickers, none of them had back plates that looked at all like that.

It is quite possible that parts were shipped, possibly in both directions.

All I know is what I don't know.

Hi,
Well according to GROK3, I am wrong!

AND, there appears to have been some Parts shipping from Denmark after all!

This has been interesting and all I know I guess is I bought a pair of real Peerless Tweeters for $80 Shipped and happy about that!



Yes, some Peerless tweeters made in the USA did have flats on the magnet, though this characteristic is more commonly associated with Danish-made Peerless tweeters. The presence of flats on the magnet housing (two flat spots ground into the pole piece) is typically noted on Danish tweeters marked with a 7514 prefix, used by Polk Audio in models like the Monitor series from the late 1970s to early 1980s. However, there are reports of USA-made Peerless tweeters, marked with a 5514 prefix, that also feature flats on the magnet, particularly from the early 1980s.For example, a discussion on the Polk Audio Forum mentions a USA-made tweeter with the 5514 marking and flats on the magnet, dated around 1980, suggesting that early USA production may have followed the Danish design closely before changes were made. This could be due to an American company (possibly in Boston) acquiring Peerless stock around that time and continuing to produce tweeters with similar physical characteristics initially.

Hi,
Was wondering if my new bought Peerless Tweeters, not having any numbers on the back meant anything?

Grok3

Yes, some Peerless tweeters made in Denmark were produced without model numbers or markings on the back of the magnet. According to discussions on the Polk Audio Forum, certain Denmark-made Peerless tweeters, such as those found in Polk Monitor 5 speakers from around 1978, lack model number stampings on the magnet or plate, though they often retain characteristic features like two flat spots on the magnet housing. This absence of markings can make identification challenging, but these tweeters are still recognized as standard Danish-made Peerless units, often with a gasket and silver faceplate.

Gardenstater wrote: »

Here's an old 2514 for ya. What does AI say about that one?

The manufacturing location of a Peerless tweeter with a "2514" number is not explicitly clear from available information, as the four-digit code (e.g., 2514) typically relates to manufacturing details like batch or date codes rather than directly indicating the country of origin. However, based on historical context about Peerless tweeters, I can provide some insight.

Peerless tweeters, particularly those from earlier periods, were primarily manufactured in Denmark, as Peerless was founded there in 1926. Some older models, especially those used in early Polk Audio speakers, may also have been made in the United States, as evidenced by tweeters with "Made in USA" stickers observed in some cases with similar codes (e.g., 7514 with a 1983 date code). By 2008, Tymphany (which acquired Peerless in 2005) opened a production facility in the Far East (likely China), meaning newer Peerless tweeters could be manufactured there.

The "2514" code likely includes a date or batch component, but without a full model number or additional context, it’s challenging to pinpoint the exact location. For instance, a 7514-marked tweeter with an "83" suffix was noted to have a "Made in USA" sticker, suggesting U.S. production for some units around that time. However, there’s no direct reference to a 2514 code confirming a specific country.

If you can provide the full model number or additional details (e.g., the speaker brand or year of production), I could narrow it down further. Alternatively, you might check the tweeter for any "Made in" markings or consult the manufacturer’s documentation. For more information on Peerless products, you can visit the Tymphany website.forum.polkaudio.comwillys-hifi.com




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Hi,
Thanks, ALL info is good and maybe others could use it???

My Monitor 7 is a 7C and has a fuse in the back.

Am now, digging in the weeds to find the upgrade to the Crossover to get rid of that with a new back plate and Posts...