Posted by colinhester [ 65.27.130.154 ] on May 03, 2005 at 17:48:20:
In Reply to: Re: Alpha 15 in 8 cubic foot box posted by Wayne Parham on May 03, 2005 at 16:35:37:
After building Guinevere, I realized (thanks to manualblock) that I should be put off the amp until I get some sensitive speakers. I was trying to piece together a set of Altec Model 19s, but the cost of original drivers is just outrageous. I did, however, manage to get a set of 811b lenses.
What I would like to do is recreate, using a Pi kit, a set of Model 19s. The plans I will use are linked below. Seems pretty straight forward with very few cuts. The internal volume is around 8 cubic feet, so that was why I asked about that particular volume. So, my question: how would I modify the porting to tune the Delta 15 for best response?
The next question deals with the HF driver included in the Pi 4 Theater Series Bass Reflex, namely the PSD2002. I saw you did some computer simulation using this driver with the 811b and seemed to get a pretty good response (http://www.audioroundtable.com/PiSpeakers/messages/9345.html) using the crossover 1K6a008dB. In real life, how does this comination sound? How easily does the PSD2002 connect to the 811b? Also, is this particluar crossover included in the Pi 4 Theater Series kit?.....Colin
PS Many congrats on a very successful show. Please keep the pictures coming....
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