Altec 420 questions.

[kwingylee]

Thanks a lot for taking the time to send me these threads.They pretty much answer the questions i had about the differences between 420-A and 420-Y.On top of it in "Altec 420 Biflex listening impressions "our good GM gives suggestions about the desired cabinet dimensions.Funny enough,what he calls the "small boy" is not very far, in terms of volume, from what i have listened to.The proportions and the vent are different though.
I would be interested if some members could suggest appropriate tweeters to replace the stock ones and at what ideal frequency the 420 should be cut in order to operate on what it does best.In the different threads i have reviewed it varies between 2500 hz and 10 000hz with very different types of tweeters suggested so i am a little bit at loss.Any experience on this topic would be welcome.
Charly 1944.

I know this is an old thread but maybe there is still interest on the Santana/420A driver. I picked up a set of the 420A drivers on the cheap a few years ago and finally put them in a pair of 828 cabinets. Like others on this thread, I tried them with different tweeters such as JBL 2404H, EV T350s etc. I used an EV Merlin ISP-100 crossover to best match the tweeters to the 420A/828 combo. The sound that yield the most phenomenal results was putting a 1000Hz LeCleach horn on top of them with a TAD2001 driver. Crossing over them at 3300Hz with a third order butter worth filter, the voices sound absolutely real. Myself and people that have heard this combo are amazed my the quality. I know this is an overkill, so this weekend, I am swapping the TAD out for cheaper drivers (ex. 902-8B) to see if I can get similar results.

Awhile back there was a gentleman on ebay selling an quasi A7 system using 420A woofers in a 825 cabinet, 511B horns with JBL drivers and ESS tweeters. He was asking very high price for the combo....but maybe he was onto something..