Greenstreet Greenstreet knock tone Greetstreet frequency analysis Linn Kore Linn Kore knock tone Kore frequency analysisĪs you can hear, the Kore does not resonate very much when knocked - it is quite “dead.” Its peak frequency, according to Audacity, is 407 Hz (G#4). I do imagine this would affect playback performance - though exactly how I cannot say. Every subchassis is a little different here in “liveliest” and/or resonant frequency. I’ve also included a frequency analysis (produced in Audacity) for each knock tone, with the peak frequency for each identified. Here are recordings of me knocking each of them with my knuckle, while they’re hanging from a string. It seemed quite clear that the multi-part bonded Kore would ring less than the single-piece Greenstreet and Mober. Mober from below, with balance point indicated with blue tack.
Greenstreet from below, with balance point indicated with blue tack. Kore from below, with balance point indicated with blue tack. The centre of gravity on the Greenstreet and Mober are identical, and closer to the motor: 14.3cm from the edge of the armboard. The centre of gravity on the Kore is 13.3cm from the edge of the armboard.
I’ve indicated the balance points with a little piece of blue sticky tack (as we call “blu-tack” here in Canada).
Some have wondered on forums about the different centres of gravity on various subchassis. The Kore is heaviest at 1102g, followed by the Greenstreet at 1033g, followed by the Mober at 1011g. Edmund says there is no way to remove it. I hoped to be able to remove the logo with nail polish remover, but that didn’t work. Maybe Linn could - forging would make the Keel cheaper, and arguably stronger.) The surface is uniform but not smooth - it’s more like the finish on my olive Naim Nait 2 case, or my Target stands. I also doubt whether Edmund would have a big enough order to justify the creation of forging dies. (There has been some debate on the forums whether it’s forged, but Edmund said it’s machined, and I don’t see any forging marks. Like the Greenstreet (and the Keel), the Mober is machined from a single piece of aluminum. It comes with no logo - the one you see is a DIY effort by the previous owner. The aluminum is sanded to a smooth surface on the armboard you can see machining marks everywhere that is hidden when installed. The Greenstreet is machined from a single piece of aluminum. The finish is painted - it’s not quite black, but rather a very dark grey with a bit of a sparkly finish. The Linn Kore is made of multiple pieces of aluminum glued together, with a machined aluminum armboard. I bought it new, and it cost about the same as the other two used. I’ve had great experiences with Edmund of Hercules II fame over the years, so I didn’t hesitate to buy this one from him. I’ll be stripping it and refinishing at some point. He applied the logo, then tried to clean the armboard with alcohol, which fouled the finish. I can’t/won’t afford one of those, so I got this one for a very reasonable price from Robert in California, who also sold me a bunch of other stuff.
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