Linn serial number age drivers#
Linn serial number age full#

No other maintenance except vacuuming out the bass cavity every few years, but I've heard there is some goop which will preserve rubber from deterioration (like 303 Aerospace does for vinyl - That stuff is a miracle) - If anyone knows of such, drop me a note? I always kept the grills on, and they never had sunlight on their faces. Incidentally, my foam surrounds are still in good shape after about 25 years' steady usage. Serial # on one of mine is 012239A, which (if they number in chrono order) looks to be one of the earlier sets posted here - I can't easily get behind the other one to check it, but they are the older model with the wooden grill frames. I tried both the Kube 100 and 200 with these, but found that a well-integrated sub (Velodyne for me) offered a better solution than either Kube, without the loss of imaging - I listen to a little of everything (except opera), and with an adequate sub, these KEFs will rock steady (You haven't heard 'Stop Making Sense' or 'Mass Romantic' until you've heard them on a pair of 104/2s!) Plus, I found that these were not nearly so 'touchy' about placement as most speakers - They are happy anywhere within a few feet of the back wall, and give an exceptionally wide horizontal sweet spot (although vertically, they drop off fast off-axis - I saw that someone here had put a 104/2 on its side as a center speaker, but it sure sems to me that would offer an awfully narrow horizontal dispersion). Over the years since, I have auditioned a lot of different gear, but never found another set which sounds nearly so 'effortless.' So, every year, for a coupla hundred bucks I'd upgrade! But, after a few years, when it came time to swap in the KEF 104/2s.

Linn serial number age full#

I bought my 104/2s back in the 80s, at a time when my retailer would credit full retail when swapping in speakers toward any speaker upgrade. The soundscape thrown by my pair of 104/2 is remarkable! When present, not only is the sound totally enveloping, but you get height information too. If you need lots of bass below 50Hz get a separate subwoofer. Do not use the KEF Kube, an external box said to enhance bass down to lower frequencies, as this clouds the sound. Bass down to about 50Hz is excellent and tuneful. On the rear of the cabinet is a pair of binding posts for the upper frequencies and another pair for the woofers so you could bi-wire/bi-amplify.Īs for sound, the highs are smooth and midrange is very well presented.

Linn serial number age drivers#

And thus the brilliance! The tricks up the 104/2 proverbial sleeve is that the sound wave of the midrange and the bass drivers is the same size, plus add in the point source-like output from the midrange/tweeter/midrange D'Appolito configuration. The internal woofers' output exits via a flanged port the same size as the midrange units. Each midrange is enclosed in its own sealed section to reduce any interaction while the tweeter is press fit to the cabinet via a rear screw.

The midrange/tweeter/tweeter panel (weighting about 25 lbs) is completely removable from the woofer cabinet (at nearly 45 lbs) and both loudspeaker cabinets are very rigid. Bass was produced by a pair of coupled cavity B200 200mm (8') paper cone drivers with their center magnets connected by a metal pole. It was flanked above and below by the B110 100mm (5') doped Bextrene midrange cone in a D'Appolito technique. The tweeter is KEF's T33 25mm (1') silk dome with slight horn loading. This relatively high sensitivity loudspeaker, at 92dB/W/m at 4 ohms, produced frequencies from 55Hz to 20kHz (+-2dB) with five drivers. KEF's 104 model saw various versions and the 104/2 was the final result of the product's evolution. While their top range model was the 107 that produced deeper bass (down to 20Hz), after careful auditioning the 104/2 was the obvious winner. MF: 2 x B110 100mm (5') Doped Bextrene coneĪmplifier Requirements 25-200W into 4 ohmsīack in the 1980's KEF was a wonderfully British company making their own drivers with a top-notch team. Drive Units HF: T33 25mm (1') Impregnated fabric dome