[b]Linn Sizmik 10.25 subwoofer[/b] I have a home-made, ultra-flat, transmission-line subwoofer to use with my Rogers LS3/5As in No.2 system. I like it very much (and it was [U]cheap[/U]), but it does have its deficiencies, one of which is the inability to go very low. As a predominantly classical listener, I don't really need bass on the Richter scale.However, I've noticed this deficiency in some records, and that set me thinking about the possibility of a new sub. Enter the local Linn man, just down the road in Oerlikon. He had a demo 10.25 Sizmik sub (there's now a bigger 12.something), so I borrowed it (yes, you're right, that's it playing in the background right now). The Sizmik is a 15" cube, and this one is black. On a furniture elegance scale of 1-10, the Sizmik is around 0.5; this is a most unprepossessing black box, standing on four rubber feet. The forward-firing speaker is protected by a strange wire grille (raised edge and centre, concentric depression between them). There is a built-in 500W amp and a series of buttons that allow various settings to be changed. The dealer gave me the English-language manual, to help adjust the settings. This might as well have been written in Mandarin, for all the good it was. Fortunately, I was able to download the latest (and much improved) manual from Linn's website. So, after all that guff, how does it sound. Like a bass speaker. At first, it hardly sounded at all, and then I found out how to fiddle with the settings, and it began to throb with life. All the old bass notes I remember that were not reproduced by my home-made one were there, and then some, if I wanted it. If I put in too much volume on it, things started to buzz. So, off with some bassy material - such as Mr. Bach's organ works (right again! that is indeed Toccata and Fugue in F major, Helmut Walcha playing). There is a lovely bassy snarl about the organ. I've previously been trying out some old pop/jazz favourites - such as Jet Harris's solo in the Shadows' classic "Nivram". There I had to crank the bass back. There's no doubt, it's much better than my home-brew. But is it £600 better? I haven't answered this question yet.... Moreover, because this thing goes between the pre-amp and power amp, to put it where I want it is going to require the longest ICs in recorded history, about 8M. (Bob "Frontfloater", if you're reading this, I'm [U]definitely[/U] not interested!). Watch This Space...