Why did you use those cheesy slipon connectors and not the much better ones that come with the drive?
Personally never use them preferring solder.
How fat is the speaker cable you are using?
dave
Personally never use them preferring solder.
How fat is the speaker cable you are using?
dave
@Dave, I don't have the original connectors, but I plan to solder once everything is stuffed, finished, etc. It's a 16ga stranded wire in there now.
I'll play with the stuffing a bit. Want to get them both built so I can tweak it in stereo!
I'll play with the stuffing a bit. Want to get them both built so I can tweak it in stereo!
You lost them? I’d be happy to send replacements, but solder is better.
We use a pair of single solid 24g strands from a CAT5 cable. Little to no o impact on the bottom, a small improvement in information transferred at higher frequencies. Much easier to solder too.
Can the binding post sbe removed from the outside?
dave
We use a pair of single solid 24g strands from a CAT5 cable. Little to no o impact on the bottom, a small improvement in information transferred at higher frequencies. Much easier to solder too.
Can the binding post sbe removed from the outside?
dave
Thanks for the offer! I'm happy to solder when I'm ready to make things less reversible, though.
The posts can't be removed from the outside, but I don't have the sides glued down, so I could always change the wire. I'll check around if I have any CAT5. I have a decent assortment of hookup wire from building amplifiers. All the gear in that pic is home built (except the CDP of course).
The posts can't be removed from the outside, but I don't have the sides glued down, so I could always change the wire. I'll check around if I have any CAT5. I have a decent assortment of hookup wire from building amplifiers. All the gear in that pic is home built (except the CDP of course).
Pulled all the stuffing out to get a baseline. I like what I'm hearing so far though room is far from optimal (recently moved and in the basement).
Looking good.
If I might make a suggestion, a room treatment I've found very effective is to get a few artificial ficus trees, 5 feet tall. They work as diffusers. I've got a fairly large room and use a dozen or so behind the speakers along (but slightly away from) the wall, and near the wall in front of the speakers. I got the artificial ficus trees at AT Home home decor store. $40 each.
If I might make a suggestion, a room treatment I've found very effective is to get a few artificial ficus trees, 5 feet tall. They work as diffusers. I've got a fairly large room and use a dozen or so behind the speakers along (but slightly away from) the wall, and near the wall in front of the speakers. I got the artificial ficus trees at AT Home home decor store. $40 each.
Good tip, thanks! Planning on some renovating of the room, but will remember that for decor later. Couple plants in the basement space might be a good touch to make it feel a little less subterranean.
I want to get the stuffing dialed in a bit before making a final judgement, but so far I'm impressed. Imaging and detail are on par, of course.
With the SPs, the bass roll off (below what I'm guessing is the tuning frequency) becomes noticeable with some material. The level difference between something like kick drums and a low synth or bass line is a little abrupt at times. I'm not totally clear on the theory of the design, so I'm not sure of the tuning or roll off specifics. To be clear I enjoyed them nonetheless.
With my initial listening, an abrupt roll off is not as noticeable with Joan. Levels across the lower frequency instrument families are more consistent. On the average, the levels may be a tad lower, or the SPs may have had some extra midbass gain. This is a little more difficult to to put my finger on as I'm in a new space since I used the SPs daily.
If I look at both in purely QW terms, some of this makes sense. The Joan's have a longer path but a smaller CSA. Lower tuning and less gain, I think? It's been a long time since I've read through any QW or TL papers though.
I've been listening without any poly fill added and plan to start adding it in systematically so I can (hopefully) hear what I'm doing. I'll follow the frugal horn guidance for the "V" and play with the space below the driver a bit. So far, I can't complain even without stuffing. The Alpair 12p is a great driver.
With the SPs, the bass roll off (below what I'm guessing is the tuning frequency) becomes noticeable with some material. The level difference between something like kick drums and a low synth or bass line is a little abrupt at times. I'm not totally clear on the theory of the design, so I'm not sure of the tuning or roll off specifics. To be clear I enjoyed them nonetheless.
With my initial listening, an abrupt roll off is not as noticeable with Joan. Levels across the lower frequency instrument families are more consistent. On the average, the levels may be a tad lower, or the SPs may have had some extra midbass gain. This is a little more difficult to to put my finger on as I'm in a new space since I used the SPs daily.
If I look at both in purely QW terms, some of this makes sense. The Joan's have a longer path but a smaller CSA. Lower tuning and less gain, I think? It's been a long time since I've read through any QW or TL papers though.
I've been listening without any poly fill added and plan to start adding it in systematically so I can (hopefully) hear what I'm doing. I'll follow the frugal horn guidance for the "V" and play with the space below the driver a bit. So far, I can't complain even without stuffing. The Alpair 12p is a great driver.
Hi mp9,
Sorry, I don't have any substantial updates yet. We are in the process of finishing the space these speakers were/will live in and I decided to hold off on tuning until the room itself was in its final state. The room was more or less all concrete, so I expect carpet, drywall, and treatments to have a big impact.
Hoping to get back to it in 3-4 weeks! I will update the thread as I can.
Sorry, I don't have any substantial updates yet. We are in the process of finishing the space these speakers were/will live in and I decided to hold off on tuning until the room itself was in its final state. The room was more or less all concrete, so I expect carpet, drywall, and treatments to have a big impact.
Hoping to get back to it in 3-4 weeks! I will update the thread as I can.
Oh yeah, that'll help a lot. Afterward, if you feel the need to tweak further you probably can also play around with making a "supra baffle" and possibly a triangular diffuser placed at the mouth a la the Ron Clark Austin 166 horn.
^ Why do you say that? Did I miss a few threads about the supra baffle being detrimental to Frugal Horns and their variants? Does the changed edge diffraction screw up the BLH speaker BSC or something? IDK, Terry Cain seemed to like incorporating supra baffles in some of his Cain & Cain speakers.
Sodacose, thanks a lot for posting the photos. It's really helpful for me in making the vector files for CNC and also for the idea about damping the cabinets.
Has anything changed in Joan desing since 12-November-2019? I would like to build them in the next month or two.
Has anything changed in Joan desing since 12-November-2019? I would like to build them in the next month or two.
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Thanks, Dave, you're right, it will be more space to breathe, but do you think it will be enough wood for the screws?
As long as you are using decent ply you will be fine. You can scab on an extra layer at the driver cut-out if you are anal.
dave
dave