Starting baffle step compensation
1.7mH (drivers wired series/parallel approx 5ohm, pretty flat), that was a big help (with resistance around it).
Resistive pot (l-pad) varies from 2ohms (not enough) to 8ohms (way too much) between 2 of the leads.
Somewhere near middle, I'll repost when dialed in (to my subjective ears anyway lol).
I'm hoping 4.5ohms as i have 2 mills resistors that are that value.....
1.7mH (drivers wired series/parallel approx 5ohm, pretty flat), that was a big help (with resistance around it).
Resistive pot (l-pad) varies from 2ohms (not enough) to 8ohms (way too much) between 2 of the leads.
Somewhere near middle, I'll repost when dialed in (to my subjective ears anyway lol).
I'm hoping 4.5ohms as i have 2 mills resistors that are that value.....
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Sweet spot is about a foot vertically at 10' away.
But not bad at all 2-3' above that (sit/stand test), you lose some highs, not as much as turning off a tweeter.
Better vertical dispersion than an 8" full range and much wider dispersion also.
15' away, not a huge difference sit/stand.
I think a real copper cap works much better than "under hung".
I'm sure its bother the tc9 is a value performer for the money.
I have it sitting a 28" stand (another speaker).
Box is 6" deep x 9" wide x 15" tall with acoustuff.
3/4" birch ply but 1/4" front baffle and router some air passages due to very shallow driver.
I'm quite happy with it.
If it was baffle step and crossed 200hz (home theater), i bet 3 across the front would be amazing.
But not bad at all 2-3' above that (sit/stand test), you lose some highs, not as much as turning off a tweeter.
Better vertical dispersion than an 8" full range and much wider dispersion also.
15' away, not a huge difference sit/stand.
I think a real copper cap works much better than "under hung".
I'm sure its bother the tc9 is a value performer for the money.
I have it sitting a 28" stand (another speaker).
Box is 6" deep x 9" wide x 15" tall with acoustuff.
3/4" birch ply but 1/4" front baffle and router some air passages due to very shallow driver.
I'm quite happy with it.
If it was baffle step and crossed 200hz (home theater), i bet 3 across the front would be amazing.
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Nice work, Norman. Are these the 4ohm variants of the TG9? I have the 8ohm and they are 97% as good as 10F for 1/5th the price.
I did two TC9’s years ago (Nautaloss) and recall it sounded amazing. I used DSP back then but the baffle step you have looks good.
Typically I use 1mH for 8ohm and 0.5mH for 4ohm drivers. Typical 4.7 to 6.8ohm resistors seem to do the trick. 3.3ohms Will give a little more presence.
I did two TC9’s years ago (Nautaloss) and recall it sounded amazing. I used DSP back then but the baffle step you have looks good.
Typically I use 1mH for 8ohm and 0.5mH for 4ohm drivers. Typical 4.7 to 6.8ohm resistors seem to do the trick. 3.3ohms Will give a little more presence.
ty.
those nola clones are cute !!!!!!!
I'm thinking like audiophiliac mentioned, that why not have more than 1 pair of speakers, especially if they excel at different things.
Ideally I'd have a monster Dunlavy speaker with my own ppsl 18's rolled in 6db both ways (time/phase thing).
I think that would cover everything for me.
After playing with this a week or 2, then I'll decide if focused array with them.
btw, a 79mm hole saw works perfect for cutting out driver holes, probably work fine for tc9 (same frame).
those nola clones are cute !!!!!!!
I'm thinking like audiophiliac mentioned, that why not have more than 1 pair of speakers, especially if they excel at different things.
Ideally I'd have a monster Dunlavy speaker with my own ppsl 18's rolled in 6db both ways (time/phase thing).
I think that would cover everything for me.
After playing with this a week or 2, then I'll decide if focused array with them.
btw, a 79mm hole saw works perfect for cutting out driver holes, probably work fine for tc9 (same frame).
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I did my Nautaloss in 2013, before I knew of Nola Brio’s - not even sure if those were around yet. But mine are sealed as opposed to open back.
I'm selling the tg9 mini driver on swap meet.
Using the funds towards a 9 (or more) focused array.
Using the funds towards a 9 (or more) focused array.
