Hey Tom, I'll be presenting again this year, this time on crossover design with measurements vs. Textbook formulas....
I think I'm presenting on Sunday???? Not sure that schedule has been finalized.
@AdamThorne yeah...it's a really tiny box and I don't remember what the F3 would be off the top of my head without it...but it's like 120-150Hz and a high Q, so quite a bit of peaking.
With the cap assist (330uF) that becomes about 80Hz F3, with the peaking removed, and the benefit of reduced low frequency excursion cleaning up intermodulation/amplitude modulation distortion a bit...so cleaner sound than a typical 4" full ranger being asked to do highs and lows...then when you throw in the little SB 3/4" tweeter, front firing like the old Allison CD6 configuration you get an even more pleasing high end. Crossover is purposefully REALLY simple (series R-C on the tweeter only) for a few reasons...one, it gets the overall power response good enough and protects the tweeter while making it simple for the build campers to get it done in a limited amount of time.
I could get a flatter response, or an even better power response but in a cube with internal dimensions of 5"x5"x5" you run out of room for the crossover really fast and you'd probably spend as much on crossover parts as you would one of the drivers (or maybe both)
All in all I use my pair for bedroom speakers where I can put them next to a boundary (against a wall) and they provide really good output/sound quality for as simple as they are.
With the cap assist (330uF) that becomes about 80Hz F3, with the peaking removed, and the benefit of reduced low frequency excursion cleaning up intermodulation/amplitude modulation distortion a bit...so cleaner sound than a typical 4" full ranger being asked to do highs and lows...then when you throw in the little SB 3/4" tweeter, front firing like the old Allison CD6 configuration you get an even more pleasing high end. Crossover is purposefully REALLY simple (series R-C on the tweeter only) for a few reasons...one, it gets the overall power response good enough and protects the tweeter while making it simple for the build campers to get it done in a limited amount of time.
I could get a flatter response, or an even better power response but in a cube with internal dimensions of 5"x5"x5" you run out of room for the crossover really fast and you'd probably spend as much on crossover parts as you would one of the drivers (or maybe both)
All in all I use my pair for bedroom speakers where I can put them next to a boundary (against a wall) and they provide really good output/sound quality for as simple as they are.
Tickets will go on sale today at 6 pm Pacific.
I will post a link to the tickets page here. Meanwhile, here is the ticket info.
Ticket options:
I will post a link to the tickets page here. Meanwhile, here is the ticket info.
Ticket options:
- In-person attendance: $30 Saturday only, $40 Sunday only, or $60 both days.
- Amp Camp: $150 (30 seats). Must purchase In-Person Saturday or both days attendance ticket in addition to Amp Camp ticket. Please be sure you will be attending in-person on Saturday morning before purchasing this ticket. Amp Camp and Speaker Camp are happening concurrently, so buy one or the other but not both.
- Speaker Camp: $180 (15 seats). Must purchase In-Person Saturday or both days ticket in addition to Speaker Camp ticket. Please be sure you will be attending in-person on Saturday morning before purchasing this ticket. Amp Camp and Speaker Camp are happening concurrently, so buy one or the other but not both.
- Sunday Virtual Hangout: $10.
The ACA is available through the diyAudio Store: https://diyaudiostore.com/pages/project-amp-camp-amp. I don't know if Nelson is releasing a new version of it for BAF, but that's a question one could ask.
Tom
BAF 2024 Amp Camp is featuring the yet-to-be-released-being-introduced-at-the-event Zenductor II.
(Now with even more ductor... 😎 )
(Now with even more ductor... 😎 )
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OK. let me get it straight... if I purchase the $150 ticket I get access for two days AND the amp build?
Simple, is that it?
Honestly, too many words in the announcement... I'm confused.
Simple, is that it?
Honestly, too many words in the announcement... I'm confused.
It's 6PM PST!!! Hah.... it was a race condition... anyhow, I got my $210 of tickets... Amp Camp and two days.
I didn't see the tickets for the beer.
I tried to buy 30 seats for Amp Camp so I could bring my Romanian buddies but it wouldn't let me.
I didn't see the tickets for the beer.
I tried to buy 30 seats for Amp Camp so I could bring my Romanian buddies but it wouldn't let me.
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