Dayton RS150S vs RS125S

wigginjs · 14th January 2005, 02:17 PM

I'm building a traditional 3-way speaker using the Dayton Reference 10" and the Seas 27TDFC. I had originally planned on using the Dayton Reference 6" as the midrange driver, but I wanted to get some opinions on using the Dayton Reference 5" instead. The midrange driver will probably be crossed over at 200Hz on the low end, I'm not sure where the high-end cross will be, but it will probably be between 1750Hz and 3000Hz. I will be using an active crossover so I'll have the ability to play with the crossover points. I'd like to hear some opinions, thanks!

454Casull · 14th January 2005, 04:54 PM

Chances are that the 6" has lower distortion levels for the same SPL. At 3kHz, the 6" woofer shouldn't have any off-axis problems.

cjd · 14th January 2005, 07:37 PM

The RS150 is more efficient and seems to be a little easier to work with. It also has 1.2mm more xmax (over 40% more if you prefer looking at it that way). They seem fairly interchangeable otherwise with respect to where you can cross them and the like. IMHO unless you are limited on baffle width where the RS150 wouldn't fit, it's the one to go with.

Still tweaking.

Extends down to ~40hz in-room, though I have to watch it on bass-heavy tracks at higher volumes.

C

wigginjs · 14th January 2005, 08:33 PM

What tweeter are you using?

cjd · 14th January 2005, 10:00 PM

27TDFC

wigginjs · 14th January 2005, 11:40 PM

Heh, wow, interesting, I just got done building a center channel speaker that is almost exactly like that. Mind sharing your crossover design?

cjd · 15th January 2005, 03:11 AM

ping me with an e-mail. chris at eldamar dot net

This is an attempt at a "universal" design, able to be used vertically or horizontally, and with a relatively low parts count (hopefully). 3rd order electric plus impedance or contouring filter, 4th order acoustic slopes. It sounds quite good though I think there are a couple trouble spots to iron out yet. It was also an experiment in methodology, so I have actually not yet measured response.

That comes as soon as I get a computer working with measuring (think I fried my soundcard so I'm going through the process of setting up my wife's for measuring).

C

14th January 2005, 02:17 PM	#1
wigginjs diyAudio Member Join Date: Dec 2003 Location: Columbia, SC	Dayton RS150S vs RS125S I'm building a traditional 3-way speaker using the Dayton Reference 10" and the Seas 27TDFC. I had originally planned on using the Dayton Reference 6" as the midrange driver, but I wanted to get some opinions on using the Dayton Reference 5" instead. The midrange driver will probably be crossed over at 200Hz on the low end, I'm not sure where the high-end cross will be, but it will probably be between 1750Hz and 3000Hz. I will be using an active crossover so I'll have the ability to play with the crossover points. I'd like to hear some opinions, thanks! __________________ The Four Chairs DIY Home Theater

14th January 2005, 08:33 PM	#4
wigginjs diyAudio Member Join Date: Dec 2003 Location: Columbia, SC	What tweeter are you using? __________________ The Four Chairs DIY Home Theater

14th January 2005, 11:40 PM	#6
wigginjs diyAudio Member Join Date: Dec 2003 Location: Columbia, SC	Heh, wow, interesting, I just got done building a center channel speaker that is almost exactly like that. Mind sharing your crossover design? __________________ The Four Chairs DIY Home Theater

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14th January 2005, 04:54 PM	#2
454Casull diyAudio Member Join Date: Jan 2004 Location: Toronto, ON, Canada	Chances are that the 6" has lower distortion levels for the same SPL. At 3kHz, the 6" woofer shouldn't have any off-axis problems.

14th January 2005, 07:37 PM	#3
cjd diyAudio Member Join Date: Jun 2004 Location: Windy City	The RS150 is more efficient and seems to be a little easier to work with. It also has 1.2mm more xmax (over 40% more if you prefer looking at it that way). They seem fairly interchangeable otherwise with respect to where you can cross them and the like. IMHO unless you are limited on baffle width where the RS150 wouldn't fit, it's the one to go with. Still tweaking. Extends down to ~40hz in-room, though I have to watch it on bass-heavy tracks at higher volumes. C

14th January 2005, 10:00 PM	#5
cjd diyAudio Member Join Date: Jun 2004 Location: Windy City	27TDFC

15th January 2005, 03:11 AM	#7
cjd diyAudio Member Join Date: Jun 2004 Location: Windy City	ping me with an e-mail. chris at eldamar dot net This is an attempt at a "universal" design, able to be used vertically or horizontally, and with a relatively low parts count (hopefully). 3rd order electric plus impedance or contouring filter, 4th order acoustic slopes. It sounds quite good though I think there are a couple trouble spots to iron out yet. It was also an experiment in methodology, so I have actually not yet measured response. That comes as soon as I get a computer working with measuring (think I fried my soundcard so I'm going through the process of setting up my wife's for measuring). C

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