Tested and, incredibly, appear to work fine!! Could probably use a tear down and restoration but actually sounded decent as is! A pair late of 1950’s — early 1960’s JansZen speakers — electrostic panels, a little known and irresistible cutting edge technology at the peak of HiFi in the late 1950s! So good, they’re owned by many modern day audiophiles where they see use daily. Electrostatic technology, born in these early days of HiFi — hasn’t changend as much as one might think. Still one of the best ways to produce stunningly realistic mids and highs (within limits) — these 1st generation JansZen panels were cleverly and quite ruggedly constructed as modular panels — method you don’t see much these days. These units (when restored and working) are known by many to sound great — both as an add-on — and in the case of Janzen usable stand alone with a woofer! As an acessory they give allot of air and detail to your system. You don’t see these smaller, super neat Model 65’s very much. Intended to upgrade the Acoustic Research Model 1 and AR1W and the early KLH 1960’s and even the original Advent! Pretty much any midsize bookshelf works well with a set of early JansZens like these. With two panels per box they’re the perfect (not overpowering add-on). They’ll make almost any small bookshelf system from this timeframe sound brighter, clearer and overall more realistic. Real hardwood cabinets are a treat! They add both a bit of form and function to any nice mid-century bookshelf — most notably AR and KLH. These Model 65’s were the smaller brother to the larger Model 130. The Model 65’s were rated at 700 c/s all the way to 30,000 c/s! Cool looking 2-element design, space-y, mid century atomic, “googie” look. Very Handsome on top of otherwise plain looking bookshelfs of the era! Made of nice real wood, with handsome chrome plated back covers, hosusing the network filters and power supply. They are great to add to most any 1950s / 60s or 70s era bookshelf. Keep in mind, these Janzens when up and running are some of the finest tweeters (and a bit of midrange) that your could ever add to your existing setup. JansZen was the pioneer in Electrostic speaker design in the USA, leading and refining the earliest designs alongside QUAD of England. Later in the 60s, JansZen contributed the the graoudbreaking Acoustat systems. They have builtin HF crossovers, so just straight wire, bi wire or parallel them right in. A very cool, clean upgrade for your vintage audio setup.