Makes those Aerial/SB woofers a bit more enticing?
Would be risky, but I wonder if knocking the bucking magnet off the AA-15NRXC30-06 would bring the Qts down near the SB15NRXC30-4... If low Q is your thing. Looks like only 4 left in stock
I think I disagree with that, JR. Bucking magnets actually decrease extraneous field for use near sensitive objects like CRTs. This means the Q will be higher on bucked assemblies than without. However, additional magnets with same field mounting will increase the field and lower Q.
Anyways, don't be surprised if Q jumps up. It is just as likely that they added the second magnet to raise sensitivity as they did to protect a CRT monitor.
If you look at photos they basically look identical with the Aerial having the extra magnet plonked on the back. (Yes I see the 4vs6 hole too) The SB has a lower Qes with the one magnet. The Arial has higher Qes with the extra magnet. It just didn't make sense to me that they would use a much weaker magnet only to add the extra manufacturing complexity of gluing a second one on to boost it and still not be close to the original SB spec. If they keep the original magnet they maintain the economy of scale (or economy of "we already have 100 pallets of these"), keep as much as you can the same and charge the buyer to tack on extra steps at the end. But that could be an old way of thinking in manufacturing. IDK
@jr@mac said:
Anyways, don't be surprised if Q jumps up. It is just as likely that they added the second magnet to raise sensitivity as they did to protect a CRT monitor.
I've heard the Aerial lineup that these come from. These were developed after flat screens were standard. Given the price of the speakers (and the intended market) I would be shocked if the designer did it to protect CRT's.
@jr@mac said:
Anyways, don't be surprised if Q jumps up. It is just as likely that they added the second magnet to raise sensitivity as they did to protect a CRT monitor.
I've heard the Aerial lineup that these come from. These were developed after flat screens were standard. Given the price of the speakers (and the intended market) I would be shocked if the designer did it to protect CRT's.
That Aerial looks fantastic and I was thinking about almost exactly that speaker when I bought the mids. I have a quad of the 5.5" poly cone version and a pair of Beast Mode nipple tweeters... Hmmm.
Scored a Dayton PN395-8 for $25, a JBL 2426h comp tweet for $20, a GRS neo8 for $10 and one of those Dayton 100W hybrid amps for $50. I helped set stuff out and got to rummage through all the goodies. Lots of decent stuff to snag👍🏼 ...and priced to sell!
I picked up a pair of little woofers and everything needed to get one of the DSP amp boards going. It's time to build the BIL a boombox for his patio by the pool.
I need to stay away from the garage sale. Last time I threw a lowball offer on some nice cast basket 15"s that I really didn't need. They accepted, crap lol. The woofers modeled well for a Cornwall clone if I remember right.. Guess I might try that if my father ever gets out of the condo and buys a house. 'Caus they certainly aint fittin in my little place.
Man, a wood welder, but no board stretcher? what gives?
Seriously though I had no idea of the existence of wood welders until I saw that. Did a quick search and it seems like the real way to do the "Iron on" veneer method.
Comments
3 cubes sealed would be just fine, and that is not that big for a 15" driver.
PE is doing 25% off buyout stuff now.
Makes those Aerial/SB woofers a bit more enticing?
Would be risky, but I wonder if knocking the bucking magnet off the AA-15NRXC30-06 would bring the Qts down near the SB15NRXC30-4... If low Q is your thing. Looks like only 4 left in stock
Knocking a bucker off will likely raise Q, not the other way around.
I ordered 4 of the 4.5". Pretty cheap for a very nice midrange.
I think I disagree with that, JR. Bucking magnets actually decrease extraneous field for use near sensitive objects like CRTs. This means the Q will be higher on bucked assemblies than without. However, additional magnets with same field mounting will increase the field and lower Q.
InDIYana Event Website
Yeah, you are right.
Anyways, don't be surprised if Q jumps up. It is just as likely that they added the second magnet to raise sensitivity as they did to protect a CRT monitor.
Indeed, both possibilities could exist.
InDIYana Event Website
If you look at photos they basically look identical with the Aerial having the extra magnet plonked on the back. (Yes I see the 4vs6 hole too) The SB has a lower Qes with the one magnet. The Arial has higher Qes with the extra magnet. It just didn't make sense to me that they would use a much weaker magnet only to add the extra manufacturing complexity of gluing a second one on to boost it and still not be close to the original SB spec. If they keep the original magnet they maintain the economy of scale (or economy of "we already have 100 pallets of these"), keep as much as you can the same and charge the buyer to tack on extra steps at the end. But that could be an old way of thinking in manufacturing. IDK
Only one way to know.
yup. and I bet neither of us care enough to do it
I've heard the Aerial lineup that these come from. These were developed after flat screens were standard. Given the price of the speakers (and the intended market) I would be shocked if the designer did it to protect CRT's.
https://aerialacoustics.com/6t/
My comment was slightly tongue in cheek.
That Aerial looks fantastic and I was thinking about almost exactly that speaker when I bought the mids. I have a quad of the 5.5" poly cone version and a pair of Beast Mode nipple tweeters... Hmmm.
PE 20% off anything Code: HOTsummer$
Making use of it now so I can just pick it up while I'm up there tomorrow.
Never seen PE do this before. That's a serious mid-summer sale.
Just in time for me to NOT need anything . . .
Guessing they are extending the 20% off to everyone for the SDC days instead of just the competitors.
Yep, but it's normally 20% off for attendees. Garage Sale, but not Tent Sale.
InDIYana Event Website
Scored a Dayton PN395-8 for $25, a JBL 2426h comp tweet for $20, a GRS neo8 for $10 and one of those Dayton 100W hybrid amps for $50. I helped set stuff out and got to rummage through all the goodies. Lots of decent stuff to snag👍🏼 ...and priced to sell!
I picked up a pair of little woofers and everything needed to get one of the DSP amp boards going. It's time to build the BIL a boombox for his patio by the pool.
I could easily go broke saving money. 😐
Thank you for the heads up. I ordered some (pricey) learning material: High Quality Horn Loudspeaker Systems
I need to stay away from the garage sale. Last time I threw a lowball offer on some nice cast basket 15"s that I really didn't need. They accepted, crap lol. The woofers modeled well for a Cornwall clone if I remember right.. Guess I might try that if my father ever gets out of the condo and buys a house. 'Caus they certainly aint fittin in my little place.
Well I couldnt stay away. Small haul but a haul none the less.
Those 4.5" SB mids PE has on buyout showed up today, sexy little fuckers.
Anyone score one of these at a price?
https://www.parts-express.com/Dayton-Audio-DTA-100ST-100W-Desktop-Stereo-Amplifier-with-Bluetooth-5.0-300-3807?quantity=1
I really want one to finished a system in my basement.
Don't know if anyone noticed, but Adire is back in the DIY game. Decent pricing for the name, too.
Not sure how many of you knew this but Kerry and I (at CSS) had been working with Jim Salk to potentially take over Salk Sound when he retired, but it didn't work out. He's now shutting down and auctioning off some nice equipment (link below). I can offer some details of some of this stuff if anyone is interested.
https://www.irsauctions.com/lots/?pg=details&id=26130&fbclid=IwAR21GkNgh2vYYhmTxQf1kyQVU0agRJQ_f8UlLPArGgjCHfzBlOKSBjhSrPc_aem_AZRTb4L_DpugBOqEztY7hiO4-lqA_w-mdgqAOiM6TIVRwBszhxM64xU7_ZkxkXm1qIg&mibextid=S66gvF
If I lived closer I'd bid on a lot of that stuff.
Holy mackerel!! Might be worth the trip.
Man, a wood welder, but no board stretcher? what gives?
Seriously though I had no idea of the existence of wood welders until I saw that. Did a quick search and it seems like the real way to do the "Iron on" veneer method.