Isobaric - less then $20

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Here we go again

One sheet of 1/2MDF, only a couple of small pieces left over. I did have to glue 2" to the left and right "long" sides, which will have reinforcement anyway.

Second photo, nothing to do with speakers, just a reminder that Spring is here.
 

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I tried building several pairs of full range, I found that the very 1st receiver I ever bought worked (Sansui 7070) the best to drive them.

(I don't have any tube amps)

Still working on the second single fold T-TQWT (going slow). My HIFY buddy came over the other day, he couldn't believe the way they sounded 😱

(I have 4 sets/subs completed, working on the 5th)
 

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The Full Range? - they are very nice - won't knock your socks off with a transistor amp. I go with the HDS kits from Maidsound.
My buddy that came over has a lot of top/high end equipment and the HDS kits and $8 T-TWQT subs left him speechless. The HDS kits don't have much bass, but they are extremely natural sounding. They do need a couple hundred hours to break in.
 
The HDS kits are a great buy, the full range drivers have a tough time competing with a good tweeter - IMO.

I think you have some buying power over there right? The HDS kits are only 84 GBP (each) to offset the shipping.

btw save any lead sheeting you may find; for very unique speaker lining, lead is wonderful. Easy to do, but be careful with it, wash hands etc. These are lead lined (and HDS design).
 

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Still going, maybe I'll knock these out over the 3-day weekend.

I put the drivers on both sides of the speaker board (back and front), so the cones will be closer (vs. both on same side).
 

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Madisound needs to work on that add/page; I think they could sell 1,000s if they showed a few more pics.
Here is the tweeter (I like the buy-4-price over on this site!!) ($29.32, free shipping at $100, hummmmm)

Vifa XT25TG30-04 1" Dual Ring Radiator Tweeter 264-1016

This pic is the pre-made crossover.

btw, the HDS speaker is a sealed box.

btw II the tweeter works so well its laughable 😱 The voice coil is not where you would think, it's in the center of the rings.
 

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