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Re: Tech evaluation of the Iron Driver Loudspeakers
My monster of an amp took care of it just fine. Please post your tweaking results, there is a lot to be learned seeing as they are pretty close to begin with. I really like the mass loaded woofer idea, and wonder how this may fare with some pro woofers like the 10" dayton. You eat up some eff but can end up with a good low FS and high enough Q to have an awesome sealed or apriodic enclosure.
Originally posted by scottq
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Yes, awesome work Roman! Thanks so much for the extra effort and the time you've put into sharing thoughts on each!
I look forward to fixing these. The budget made things very difficult, indeed, but I wanted to stick with the primary goals and all the challenges/concepts. That said, I am certain there is room for improvement, even within the budget. The measurement woes were my own fault... the procrastinator in me let things slide way too long. I should have known better with all upgraded equipment that things wouldn't go as smooth as I planned.
I warned you about their inefficiency - tripling the moving mass really takes a hit on sensitivity! I tested and did listening on a GFA-5400 for a reality check rather than my bridged Parasound 1500A's (rated for 630 Wrms); for almost all material at enjoyable volumes in a living room, the 5400 was plenty capable... a few dynamic orchestral passages made the overload indicators flicker, but most things did just fine. They aren't PA speakers, that's for sure. Low-power receivers realistically aren't going to cut the mustard. But there are plenty of great 2ch amps available on the used market for under $300 (picked up my 5400 for $225 shipped).
I was pleased to find out that several of the songs on the demo disc were ones that I listened to on them at home... Jeff, the mixes were very well done; thanks for your efforts too
And, of course, thanks to Mike! I sympathize with the effort that goes into these events...
Be on the lookout for the Apertures v2 at SEC DIY 2012.
Regards,
Scott
I look forward to fixing these. The budget made things very difficult, indeed, but I wanted to stick with the primary goals and all the challenges/concepts. That said, I am certain there is room for improvement, even within the budget. The measurement woes were my own fault... the procrastinator in me let things slide way too long. I should have known better with all upgraded equipment that things wouldn't go as smooth as I planned.
I warned you about their inefficiency - tripling the moving mass really takes a hit on sensitivity! I tested and did listening on a GFA-5400 for a reality check rather than my bridged Parasound 1500A's (rated for 630 Wrms); for almost all material at enjoyable volumes in a living room, the 5400 was plenty capable... a few dynamic orchestral passages made the overload indicators flicker, but most things did just fine. They aren't PA speakers, that's for sure. Low-power receivers realistically aren't going to cut the mustard. But there are plenty of great 2ch amps available on the used market for under $300 (picked up my 5400 for $225 shipped).I was pleased to find out that several of the songs on the demo disc were ones that I listened to on them at home... Jeff, the mixes were very well done; thanks for your efforts too
And, of course, thanks to Mike! I sympathize with the effort that goes into these events...
Be on the lookout for the Apertures v2 at SEC DIY 2012.
Regards,
Scott
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