@Tom_S said:
With that nice sensitivity, there might be a few SET tube guys that would love them.
It isn't super sensitive. My FR measurements are done after I measure for distortion at 95db. I just gate the distortion measurement. I like to know what is going on in the on-axis at high volumes. So, probably a bit more than 1W represented. If I were to hazard a guess, I would say it is probably around the 81-82db range and that is only because I didn't do a full baffle step. It is kind of why I recommend a high current Class AB or a cheap high output Class D for them. They will be power hungry, but that is the price of hitting below 50Hz in a sealed design in only 1.2 cubic feet.
Got a listen yesterday , they sound mwaaaa . Very nice build , as usual everything sounded balanced and well executed. If I had the room Id build a set.
I found I had near half the parts already so I ordered the rest a while ago. Gotta start finding homes for builds though before doing more. If only I could break this habit of building big.
@DrewsBrews said:
I found I had near half the parts already so I ordered the rest a while ago. Gotta start finding homes for builds though before doing more. If only I could break this habit of building big.
Big or small, I can't seem to stop building as well.
A friend of my wife expressed some interest in me building something for them. I don't trust my own skills enough to design something for a non family member. But I have the parts for this.
They seemed open to towers if they aren't huge. Was thinking of narrowing the baffle an inch or so, but keeping the M/T the same distance from the closer side. I wouldn't think that would effect baffle step enough to add more than a small midbass dip all else being the same? Woofer Qts seems would make for little change in the bass alignment with a not huge increase of internal volume.
Gotta wait for the 8"ers to come back in stock. One ended up being a dud measured 10ohm
Cool, only other thing I can think of would be: Any idea how much recessing the woofer ~1/8" would mess up the alignment? These will probably operate most of the time with grills. Not wanting to screw up the sound too much I thought of trying thin 1/8" tempered hardboard stuff. But the woofer gasket and surround would probably be thicker than the grill in that case.
Comments
Great write up JR. I wish I had your writing talent.
With that nice sensitivity, there might be a few SET tube guys that would love them.
It isn't super sensitive. My FR measurements are done after I measure for distortion at 95db. I just gate the distortion measurement. I like to know what is going on in the on-axis at high volumes. So, probably a bit more than 1W represented. If I were to hazard a guess, I would say it is probably around the 81-82db range and that is only because I didn't do a full baffle step. It is kind of why I recommend a high current Class AB or a cheap high output Class D for them. They will be power hungry, but that is the price of hitting below 50Hz in a sealed design in only 1.2 cubic feet.
I'll build stands for them tomorrow. I'm going to run them as my mains in the basement for awhile.
I've always had a knack for it - I give credit to the thousands of books I have read.
Updated and expanded writeup attached.
FYI, the unofficial name for these speakers is "Insomniacs".
Got a listen yesterday , they sound mwaaaa . Very nice build , as usual everything sounded balanced and well executed. If I had the room Id build a set.
JR, did you model this as a ported floor stander?
It ports pretty poorly. I know Rory did so with his Iguanas but he must have used some magic or a very low crossover point.
JR, did you ever get any glamor shots of these completed on the stands? This does look like a fun build. I hope to hear them someday.
I totally forgot to do so lol. I get some time I'll pull them out and do so.
No worries. I bet I have 80% of what's needed in my stash of unused drivers. I should just stop being lazy and build them.
Pretty straightforward build with a simple xo.
I found I had near half the parts already so I ordered the rest a while ago. Gotta start finding homes for builds though before doing more. If only I could break this habit of building big.
Big or small, I can't seem to stop building as well.
Small just has different challenges.
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A friend of my wife expressed some interest in me building something for them. I don't trust my own skills enough to design something for a non family member. But I have the parts for this.
They seemed open to towers if they aren't huge. Was thinking of narrowing the baffle an inch or so, but keeping the M/T the same distance from the closer side. I wouldn't think that would effect baffle step enough to add more than a small midbass dip all else being the same? Woofer Qts seems would make for little change in the bass alignment with a not huge increase of internal volume.
Gotta wait for the 8"ers to come back in stock. One ended up being a dud measured 10ohm
Yeah, an inch wont matter much. You could probably get away with 1.75 cubic feet and it would be pretty good.
Cool, only other thing I can think of would be: Any idea how much recessing the woofer ~1/8" would mess up the alignment? These will probably operate most of the time with grills. Not wanting to screw up the sound too much I thought of trying thin 1/8" tempered hardboard stuff. But the woofer gasket and surround would probably be thicker than the grill in that case.
That won't dick with things too much, either.