On cyber Monday I made an impulse buy and grabbed a pair of these Seismic Audio Co-Ax divers.
https://www.seismicaudiospeakers.co...rs/products/12-inch-coaxial-speaker-pair-each
I emailed them for the T/S parameters, and here's what they sent me.
CoAx-12:
T/S Parameters:
Resonant Frequency (fs): 52 Hz
DC Resistance (Re): 5.8 Ohm
Mechanical Q (Qms): 7.42
Electromagnetic Q (Qes): 0.5
Total Q (Qts): 0.5
Compliance Equivalent Volume (Vas): 57.16 Ltr
Mechanical Compliance of Suspension (Cms): 0.184 mm/N
BL Product (BL): 17.35 Tm
Diaphragm Mass Airload (Mms): 65.7g
Surface Area of Cone (Sd): 547.4 cm2
My goal for these speakers is to build a set of main speakers for a PA rig for jamming with my buddies. I'd like them to be as full range as possible, while keeping the box a reasonable size. I used a box calculator on DIY Audio and Video, and it says the box needs to be 4 cubic feet and ported. That's way bigger than I can tolerate for the space we have available. I'd like them to be full range, and play as deep as possible, but I'd trade low end for a smaller box size. For band use, we would only run vocals through these, but it would be nice to use them for party's and other events that require full range music.
How do I design a speaker box and estimate the bass roll off as it relates to the to the box size?
I also need to design and build a cross over. Can you point me to an online resource that can help me calculate and design a cross over? Should i buy a MiniDSP and use that to develop the cross over, then build a passive cross over for each speaker based off that?
Did a get ripped off for $99 per pair on these speakers?
Onebean
https://www.seismicaudiospeakers.co...rs/products/12-inch-coaxial-speaker-pair-each
I emailed them for the T/S parameters, and here's what they sent me.
CoAx-12:
T/S Parameters:
Resonant Frequency (fs): 52 Hz
DC Resistance (Re): 5.8 Ohm
Mechanical Q (Qms): 7.42
Electromagnetic Q (Qes): 0.5
Total Q (Qts): 0.5
Compliance Equivalent Volume (Vas): 57.16 Ltr
Mechanical Compliance of Suspension (Cms): 0.184 mm/N
BL Product (BL): 17.35 Tm
Diaphragm Mass Airload (Mms): 65.7g
Surface Area of Cone (Sd): 547.4 cm2
My goal for these speakers is to build a set of main speakers for a PA rig for jamming with my buddies. I'd like them to be as full range as possible, while keeping the box a reasonable size. I used a box calculator on DIY Audio and Video, and it says the box needs to be 4 cubic feet and ported. That's way bigger than I can tolerate for the space we have available. I'd like them to be full range, and play as deep as possible, but I'd trade low end for a smaller box size. For band use, we would only run vocals through these, but it would be nice to use them for party's and other events that require full range music.
How do I design a speaker box and estimate the bass roll off as it relates to the to the box size?
I also need to design and build a cross over. Can you point me to an online resource that can help me calculate and design a cross over? Should i buy a MiniDSP and use that to develop the cross over, then build a passive cross over for each speaker based off that?
Did a get ripped off for $99 per pair on these speakers?
Onebean