The Daytonator - PA130-8X

[Godzilla]

XRK, my son wants a speaker for his small dorm room. He's sharing the room with one of his buddies. There is NO floor space so the speaker will have to sit on top of a desk, dresser or bookshelf - source will be their phone or tablet. I think the Daytonator would be an excellent option. Could you post the dimensions or diagram for the project?

Thanks!

 

[xrk971]

Daytonator XKi is here:

http://www.diyaudio.com/forums/full...arlson-6th-order-bandpass-32.html#post4404251

Funny you mention this as I was just listening to it in the kitchen yesterday running mono. No one else was home so I took the volume up - this thing actually rocks pretty hard and has got good bass punch for such a small box. The cone motion is well controlled with the 6th order bandpass design,

http://www.diyaudio.com/forums/full...arlson-6th-order-bandpass-33.html#post4427694

I am using a TDA8932 mono amp ($3 with free shipping) but sounds like a $100 amp) with a 19v SMPS and a 3.5mm input cable with left and right going through 4.7k resistors for summed mono.

When looking for plans to a foam core project don't forget the index here:
http://www.diyaudio.com/forums/full-range/223313-foam-core-board-speaker-enclosures.html

 

[Godzilla]

Thanks xrk! Is there a reason you didn't bring the point on the front baffle all the way up to the top. I found this thread and may make a tracing from it.

Oh, and what's the width?

http://www.diyaudio.com/forums/full...arlson-6th-order-bandpass-30.html#post4283536

 

[xrk971]

7in wide (internal). Not bringing K aperture vertex to top gives more bass extension.

 

[Godzilla]

Thanks! I hope to start cutting wood this weekend. Excited about my first Karlson... for my son.

 

[xrk971]

You will love the sound - I know you and I both like how the PA130-8 sounds. But you are in for a real treat when this driver comes alive with deep room filling bass. Bass that needs no BSC to be heard.

 

[Godzilla]

Yes, the PS130-8 sounds great in BIBs. I expect the little Karlson will bump up the bass enough for the dorm room. I'll post pics of my build. Thanks again xrk!

 

[jwicaksana]

XRK, my son wants a speaker for his small dorm room. He's sharing the room with one of his buddies. There is NO floor space so the speaker will have to sit on top of a desk, dresser or bookshelf - source will be their phone or tablet. I think the Daytonator would be an excellent option. Could you post the dimensions or diagram for the project?

Thanks!

Currently residing in a small dorm room as well, with speakers sitting on top of a desk. Not happy with my unit now, it's a Sony SS-VF3, that's hard to drive, feels like it needs a lot of power. I missed full range speakers. I do. Have fun and I hope your son would enjoy it.

 

[xrk971]

Yes, the PS130-8 sounds great in BIBs. I expect the little Karlson will bump up the bass enough for the dorm room. I'll post pics of my build. Thanks again xrk!

Godzilla,
Did you ever build this for your son? Please post pics if you did.

 

[Godzilla]

No, I built him this. He already got in trouble playing too loudly. His roommate always thanks me. Apparently, he plays music more often than my son. On the weekends students gather in the hall by his open door. Said he's made friends with people wanting to see his stereo (it's only mono, just one speaker).

Eminence 8" plus Foster horn tweeter (lying around collecting dust). 3500kHz crossover is too high... it sounds too bassy unless the L-pad is turned almost all the way up... room feels like it's going to explode from bass... strangely, the vocals are crystal clear... he freakin loves it!

I have the little Karlson printed out to scale on my dining room table - a project for another day. Thanks!

 

[Joca]

hi,

wanto to build an enclosure for the pa130-8. I was hoping that my wife would like the xki's enclosure, but no luck. The speaker are a gift to her. She will be using them at her job in a desk. What options do i have? She like the looks of the common BR enclosures because it's the only kind of speakers she is used to see.

thank you

 

[xrk971]

Cover with grille cloth. You could just make the XKi without the aperture in which case it behaves like a BR with a slot port. Sounds quite nice still.

 

[Joca]

thank you xrk. i think i will do that. I'll try to convince her that is sounds better in a karlsonater.

if i can't find the foam cardboard what MDF thickness do you recomend ?

 

[xrk971]

12mm should work and just keep the internal dimensions the same as the volumes and vent cross sections are what matter. The Daytonator I built in his thread, I gave to a friend and he uses it in his house and everyone including the wife loves the sound. They stopped listening to their old stereo set and use this with their phone as source.

 

[xrk971]

Has anyone tried this new driver from Dayton? Looks like the ideal Daytonator with built in silk dome coax.

CX150-8:
Dayton Audio CX150-8 5-1/4" Coaxial Driver with 1" Silk Dome Tweeter 8 Ohm

An externally hosted image should be here but it was not working when we last tested it.

An externally hosted image should be here but it was not working when we last tested it.

Cast frame too... nice....

Might take a bit of work with a passive XO though:

An externally hosted image should be here but it was not working when we last tested it.

I see an upcoming XKi or 0.53x Karlsonator based on this.

 

[freddi]

cute driver - maybe the 4" version would be nice in a mini Karlsonator. Speaking of coax, I wonder if ApexJr finally sold out of their M&K coax -? he had it for years cheap and it appeared to have a very good build quality. There were no mounting holes drilled on the frame. They sold for ~$15 each - or less in lots. Here's some left on Ebay

domes have been clobbered in the sample below - maybe a light pull from a vacuum would straighten that problem (?)

NEW (2) Vifa 4" 2-way Speakers.M&K Miller Kreisel MP6 Coaxial.Full Range Pair. | eBay


ApexJr page
Speaker Stuff

Speaking of 'nators - I guess Emiinence's poly cone version of their Beta8cx was a commercial flop. It may
have been a good product for home hi-fi (?)

Eminence Acoustinator CX2008 8" Guitar Speaker 8 Ohm

data sheet https://www.parts-express.com/pedoc...-acoustinator-cx2008-specifications-45364.pdf

 

[BYRTT]

Thanks sharing that interesting news X, looks like some KEF clone is opened up for diy fun now

 

[xrk971]

This could be quite a nice speaker given that woofer is 89dB sensitive and fairly smooth response. Certainly with miniDSP - this could be a totally easy to implement point source. And with Harsch XO, temporal dynamics could be awesome too. Add a TL back end or even passive radiators for some deep bass fun.

 

[phivates]

Looks like it sold out already

A 6.5 version would fix my Q70 kef pair rather nicely

 

[Godzilla]

Certainly looks good enough to try. Frame looks very nice. Not sure why I like using separate tweeters with mid/woofers? I think it's so I'm not constrained to the woofer cone as the waveguide... although Tannoy never seemed to care.