any updates on the accuracy of audio nirvana T/S specs?

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#101
gafhenderson said:
i'm starting to think this is why i'm struggling to find something i like. granted i've only had a handful of DIY full rangers from local audio clubs to listen to.
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planet10 said:
We sure are enjoying our numerous builds...dave
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I guess it's part of the addiction. After hearing the purity of the FR sound I've put my commercial 3-ways in my basement for HT use whilst for my music listening the search is on for the perfect FR... and since reading the Tysen thread my plan is to try a F.A.S.T configuration so l.f. (<300Hz) is taken care of by a dedicated woofer to relieve the FR of the grunt work. I do like the sensitivity offered by the AN, it would suit nicely to a SET amplifier.
 
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#102
you also gonna forget about any 3-way for HT when you hear flatconed TB 3" or 4" in FAST arrangement 😉

PS: I can't believe that on the whole internet no one speaks about those magical drivers... I know it's offtopic, but I have to tell that I have: Coral Flat 5II, Coral Flat 6, Coral Flat 8, Coral 8F60, Alpair 6, Alpair 7, CHP70, Cantare 7FR, Audio Nirvana Super 10, TB 1", very good OEM TB 3", TB Bamboo 4", TB polypropilene 5", etc. but those flatconed TB W3-1797 are something special(no other widerange can sound like they do) and in the same League(although different) as Coral Flat 5II- both my favourite Widerangers!
What I can see as competition to those TB can only be this: http://oaudio.de/Loudspeaker-chassis/Thiel-Audio/Thiel-Audio-CS-2-4::312.html ,although I haven't heard them, I doubt they can make such Dimension...
 
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#105
Bigun said:
That sounds like a darn good idea. Trouble is, if I remember correctly, that really nice mid-hi tractrix that Ra7 has was hand made by him and his girlfriend when they were given access to John Inslow's special mould - for the rest of us it doesn't look like an easy DIY option. Anybody care to recommend a more DIY'able mid-high FLH ?

ooops, that was entirely off-topic.
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More OT! Bigun is right. But if I had to build the horns again, I would probably pay John off and get them straight from him. I don't want to spend hours and hours paper mache-ing. Took me a year to finish them. Plus the end product will look much nicer. John's horns look way better than mine, and they should, he's been perfecting them for ages now.

btw, the gf has now become my wife 🙂
 
#106
re: AN10 - how far off from spec? - look at the right hand column in this woofer tester screenshot

here's the numbers from that WT3 run - - I used a sealed box to get Vas as added mass method
seemed problematic with AN10

Re = 6.959 Fs= 95.94dB Qts= 0.4218 Qes = 0.4818 Qms = 3.384
Le = 0.1808 mH Mms = 20.93 g Vas = 3.498 cubic feet

http://img218.imageshack.us/img218/7884/an10vasin24cfboxsl2.gif

I have severe balance problems and am sensitive to harmonic spatial disconnect in many multi-way and helper tweeter setups - a decent coaxial with good network is one compromise to deal with that aspect of sound reproduction
 
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#107
ra7 said:
More OT! Bigun is right. But if I had to build the horns again, I would probably pay John off and get them straight from him. I don't want to spend hours and hours paper mache-ing. Took me a year to finish them. Plus the end product will look much nicer. John's horns look way better than mine, and they should, he's been perfecting them for ages now.

btw, the gf has now become my wife 🙂
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Hey congratulations 🙂

Yeah, the way it looks I don't fancy the time to make those horns using the same technique from scratch - even though the results are great. Right now I'm not sure I'm willing to pay for them either - it's DIY afterall.
 
#108
I used CSA's published spec's along with Martin King's program to determine final vent size. Quite happy with the results. I'm using CSA's Super 6.5 and Dayton Audio's 1 cu/ft cabinet. Presently these speakers see daily duty in my home theater system (Denon AVR-391/5.1). I use CSA's in house designed tube amp for stereo listening. I've listened to these speakers for two plus years now with zero problems. I enjoy many different styles of music. They are at their best (for me) with jazz and blues.

For the record, I used S&L's woofer tester to test the Super 6.5's and Super 3's. I used both the sealed box and added weight test methods for the VAS measurements. Guess what? I ended up with two different results. Is that CSA's or S&L's fault? No! There are way too many variables to overcome for consistent VAS measurements at the diy level. In other words the test results will vary from user to user. Short of doing the VAS test in a ANECHOIC CHAMBER and everyone using the same test equipment, good luck. On a positive note, the electrical measurements according to my S&L woofer tester were pretty much on the money with CSA's spec's.

Hope this helps🙂
 
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#110
Brad Kizer said:
I used CSA's published spec's along with Martin King's program to determine final vent size. Quite happy with the results. I'm using CSA's Super 6.5 and Dayton Audio's 1 cu/ft cabinet. Presently these speakers see daily duty in my home theater system (Denon AVR-391/5.1). I use CSA's in house designed tube amp for stereo listening. I've listened to these speakers for two plus years now with zero problems. I enjoy many different styles of music. They are at their best (for me) with jazz and blues.

For the record, I used S&L's woofer tester to test the Super 6.5's and Super 3's. I used both the sealed box and added weight test methods for the VAS measurements. Guess what? I ended up with two different results. Is that CSA's or S&L's fault? No! There are way too many variables to overcome for consistent VAS measurements at the diy level. In other words the test results will vary from user to user. Short of doing the VAS test in a ANECHOIC CHAMBER and everyone using the same test equipment, good luck. On a positive note, the electrical measurements according to my S&L woofer tester were pretty much on the money with CSA's spec's.

Hope this helps🙂
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thanks for your info.
 
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