I just picked these up for $20 at a thrift store. Possibly the most rare DLK speaker (mfg.'78-'79) moreso than the DLK Model 3 or 4 from what I gathered on the web. I've been looking for a pair of these type of mini bookshelf vintage speakers (any other recommendations?) that sit on top of your towers ever since I purchased a pair of Rectilinear Micro-3 bookshelves. I was so impressed with the Micro and what they contributed to the overall sound enhancement of my completely upgraded Genesis Physics III, that I've been on the lookout for another similar set for the floorstanders in my other sound setup. Obviously, I couldn't just pass these up, they're too interesting..
There were meant to sit on top the DLK Model 3 or 4. Apparently, you were supposed to dial back your tweeter pot on your floorstander and use this speaker as a high-frequency replacement. From what I've heard so far, that sounds about right. Before you get too carried away, I am saddened to report there is something a bit "off" with the sound of these speakers, just like the KEF C75 pair I just purchased. The ULM's sound pretty clear on the treble, but also seem to be missing alot (and I mean alot) of sound information and have very low volume overall with a teeny tiny soundstage. So..what do you think, does this mean they are blown, or could a recap revive them (as that is what I had planned on doing when I purchased them but don't want to waste the time if it's not going to properly rejuvenate them. I can check resistance of the windings to have a comparative assessment between comparable sets of drivers. But it does seem like something is wrong with them that I may not be able to diagnose. These little speakers are in wonderful shape and grilles look perfect. Part of one wood base is cracked all the way across and the glue on a couple little wooden braces has broken loose. Otherwise, they are in great shape.
On the back photo, you can see a little gap beneath the speaker grille and base of the speaker. This is where you route your speaker wire to connect to terminals within the cabinet. Simple crossover, I only see a 4.7uf 50V and a 2.2uf 200V bi-polar cap in each for re-capping. There is very little info on these from the web, which is also part of the reason I am posting. Does anyone have experience with these or what may be wrong with the sound of mine? Thank you.


There were meant to sit on top the DLK Model 3 or 4. Apparently, you were supposed to dial back your tweeter pot on your floorstander and use this speaker as a high-frequency replacement. From what I've heard so far, that sounds about right. Before you get too carried away, I am saddened to report there is something a bit "off" with the sound of these speakers, just like the KEF C75 pair I just purchased. The ULM's sound pretty clear on the treble, but also seem to be missing alot (and I mean alot) of sound information and have very low volume overall with a teeny tiny soundstage. So..what do you think, does this mean they are blown, or could a recap revive them (as that is what I had planned on doing when I purchased them but don't want to waste the time if it's not going to properly rejuvenate them. I can check resistance of the windings to have a comparative assessment between comparable sets of drivers. But it does seem like something is wrong with them that I may not be able to diagnose. These little speakers are in wonderful shape and grilles look perfect. Part of one wood base is cracked all the way across and the glue on a couple little wooden braces has broken loose. Otherwise, they are in great shape.
On the back photo, you can see a little gap beneath the speaker grille and base of the speaker. This is where you route your speaker wire to connect to terminals within the cabinet. Simple crossover, I only see a 4.7uf 50V and a 2.2uf 200V bi-polar cap in each for re-capping. There is very little info on these from the web, which is also part of the reason I am posting. Does anyone have experience with these or what may be wrong with the sound of mine? Thank you.


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