Few years ago I made a HT system using Peerless HDS PPB 6.5" Midwoofer and Vifa Tweeters and PE 0.75 cf MTM enclosure. I really wasn't happy with the sound, since I chose an enclosure that was too large for one HDS woofer, and I always wanted and MTM for HT.
So I finally started my modification of the speakers.
In this new system, Im using the same enclosures, sealed, 2 HDS woofers and I am using the Vifa BC25SC55-04 tweeter in a time alignment manner. I have not gotten to the XO yet. That is my last step.
I have built new baffles using baltic birch plywood, that I had my shop in WI CNC them. Didn't cost a lot.
old version
New version. In the picture, I used the SLS 6.5" just for visual. That is going to be used in a 1.0 cf PE enclosure , WW, and is going to be going under the MTM as a stand.
The process of making the Time alignment flares. Two baffles, one scrap, sandwiched together using nails and 1" round over bit.
The baffle is made of 0.75" and 0.5" BB plies, sandwiched together.
The hole on the 0.5" ply is made using a flush bit, cloning the hole on the 0.75" ply done with CNC router.
The baffle is still not finished. Im going to chamfer the back of the holes and do a 3/8" round over of the corners.
More to come soon.
So I finally started my modification of the speakers.
In this new system, Im using the same enclosures, sealed, 2 HDS woofers and I am using the Vifa BC25SC55-04 tweeter in a time alignment manner. I have not gotten to the XO yet. That is my last step.
I have built new baffles using baltic birch plywood, that I had my shop in WI CNC them. Didn't cost a lot.
old version
New version. In the picture, I used the SLS 6.5" just for visual. That is going to be used in a 1.0 cf PE enclosure , WW, and is going to be going under the MTM as a stand.
The process of making the Time alignment flares. Two baffles, one scrap, sandwiched together using nails and 1" round over bit.
The baffle is made of 0.75" and 0.5" BB plies, sandwiched together.
The hole on the 0.5" ply is made using a flush bit, cloning the hole on the 0.75" ply done with CNC router.
The baffle is still not finished. Im going to chamfer the back of the holes and do a 3/8" round over of the corners.
More to come soon.
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