1 Attachment(s)
LE14A Project: Enclosure Design
I sat down at the puter today and got started on my LE14A project. My goal is to improve upon the S99 using the LE14A's in a 3-way system. I had originally thought that I would modify the existing enclosures but have since settled on building new cabinets, saving the old ones for sake of comparison between original and modified.
The new enclosures will have the same intenal volume as the original S99 taking into account the added midrange/enclosure and additional bracing so the external dimensions will be slightly larger. The front baffle will be in two sections, woofer section and mid tweeter section. The woofer baffle will be permanently glued in place, the mid/tweeter baffle will be removable allowing me to experiment with other drivers.
To make room for the additional midrange driver, I reshaped the port into a rectangle and placed it at the bottom so that sides and bottom of the cabinet form the sides and bottom of the port, simplifying its construction.
This is just the first step. Any comments or suggestions are welcome.
Attachment 84379
"old" LE14A vs "newer" LE14H
Rob,
I'm wondering if my aged LE14A's would be appropriate for the L240Ti boxes. I used a woofer tester to get the t/s parameters of my LE14A's. (I'm a novice so forgive my ignorance)
Re: 5.67 / 6.317
Fs: 18.58 / 20.033
Zmax: 173 / 175 ohms
Qes: 0.1721 / 0.2297
Qms: 5.088 / 6.1355
Qts: 0.167 / 0.2214
Le: 1.839 / 1.599 Mh@1k
Vas: 14.7 / 3.4385 cu.ft.
small room, big speakers?
speakerdave,
The room where these will be living in is a small guest room 8'-6" x 9'-0". I currently have a pair of L110's in there that sound excellent but after hearing the bass response from the S99's in the same room, I was impressed. The S99's don't sound as good as the L110's in the mid and high frequencies though, that's why I decided to build a new system around the LE14A's.
I could build larger enclosures, but considering the space am I risking muddying up the bass? As I mentioned earlier, I tried the LE14A's in L55 cabinets in the same space and they did not sound as good as the S99 cabinets.