Posted by Wayne Parham [ 65.69.120.224 ] on June 06, 2005 at 15:20:02:
In Reply to: Studio Two tweak - Wow! posted by wlutke on June 06, 2005 at 11:35:20:
I like using Erse coils for larger values (Greater than 5.0mH) for their reduced DCR, so that system Q isn't shifted up too much. With large coils, the woofers can get a little tubby if circuit resistance goes up too much. It's not usually a problem until you reach about 25% the value of voice coil resistance, but some systems are more sensitive than others.
The stock 0.5mH coil used in the two π tower sounds great to me with the Stoetkit amp, the Nelson Audio SE8 and the Audio Note Kit 2. Of those, the Audio Note and the Nelson Audio are SET amps. On the other end of the spectrum, I think the two π tower also sounds good with solid state receivers and home theater systems. Output circuit resistance is probably a little less an issue with solid state, until the resistance becomes pretty large, like half the value of the voice coil or so.
I ran Paramours using stock output transformer and Solen parafeed cap, so I kinds of know what you're describing here. I used Valve Art and Electro-Harmionix tubes in my amps. I think I'd have to agree with you that slightly lower Q speakers tended to sound better with Paramours, and reducing DC resistance tends to push the system in that direction. Swapping the coil is an easy mod, and I'll bet it sounds good. Might also be worthwhile experimenting with replacing output transformers and maybe changing parafeed caps to see how that sounds too.
[ PiSpeakers Forum ] [ Help ]