Finished up a breadboard of some crossovers for a pair of Tannoy 15" Reds. Added a bit of ajustability and the coolest thing was how the sims and the measured responses matched each other. The nasty technical bits can be seen here.
Going to give them a listen tomorrow but for now I'll leave you with a picture of the beasts which will be confirmed for sonics and inserted into a nice wood box.
Just for a tease, These are the simmed and measured of the 3K notch filter, top line is without it and then it slowly get introduced.
Quad QA12/P Amplifier - This is pretty close to Quads first amplifier. I got to put my hands on one of these once very cool early British amplifiers. http://www.itishifi.com