kg4guy Posted May 1, 2012 Share Posted May 1, 2012 Cool speakers Quote Link to comment Share on other sites More sharing options...
Brac Posted May 1, 2012 Author Share Posted May 1, 2012 Thanks, the tweeter kits should be here any day now Quote Link to comment Share on other sites More sharing options...
kg4guy Posted May 1, 2012 Share Posted May 1, 2012 Thats exciting have fun I love my La scala's I'll always have at least one pair that I will never part with. Quote Link to comment Share on other sites More sharing options...
Brac Posted May 6, 2012 Author Share Posted May 6, 2012 I'm currently running the one piece industrials in my shop, still using the stock AA networks, I have noticed a fair bit of noise when power down the pre-amp. I never had this with the Klf-10's that were fed with the same setup. I know these are more efficient but I really hate pops and such as they can damage things. Any ideas on what to do? Pre-amp is Zone 2 from my UMC-1 through a Jamo MPA-101. Quote Link to comment Share on other sites More sharing options...
Guest " " Posted May 7, 2012 Share Posted May 7, 2012 power on....turn on pre-amp first, them amp; power off....turn the amp off first, then pre-amp. Quote Link to comment Share on other sites More sharing options...
Brac Posted May 11, 2012 Author Share Posted May 11, 2012 With lots of help from Speakerfritz (Mike), I now have in my possession all the parts needed to turn 4 AA networks into 4 GOOD AA networks. I have plenty of really nice hardwood around so I will make up some new boards, and try to clean up all the parts that will get re-used. Anybody have any thoughts on weather to add the Zenners back in? As I understand they are just for tweeter protection (however I do not know if they have any effect on the circuit otherwise). Look at that I formatted a paragraph! Thanks Chris. the "Good AA" schmatic I'm using is the 6th post in this thread. Also is an AA network out of a lascala the same as an AA network out of a Khorn? Quote Link to comment Share on other sites More sharing options...
BLSamuel Posted May 11, 2012 Share Posted May 11, 2012 Anybody have any thoughts on weather to add the Zenners back in? As I understand they are just for tweeter protection (however I do not know if they have any effect on the circuit otherwise). At one of the Pilgrimages I attended Trey was showing the difference in crossover response, may have even been an AA with metal screw holding down the coil vs the intended nylon screw. A few crossovers got assembled by Alice (not real name) with the metal screws makng the coils iron core rather than air core. Very sublte measured difference. Probably not audible, to me anyway, but different. Anyway, he pointed out the zener diodes and said they did a very good job of protecting delicat tweeter diapragms that can easily be replaced at a reasonable cost but that many amplifiers started to melt down wien the zeners kicked in and had a history of destroying at least a few expensive amplifiers to save $40 to $80 to replace the burnt out tweeter diapragms. I'd leave them out. p.s. Mike or someone esle may chime in but I think Trey would recommend to leave them out. Quote Link to comment Share on other sites More sharing options...
Guest " " Posted May 11, 2012 Share Posted May 11, 2012 Also is an AA network out of a lascala the same as an AA network out of a Khorn? Yes...exactly the same ...used in belles, khorns, lascalas Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.