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Old 20th April 2010, 06:23 PM   #1171
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Originally Posted by chrisb View Post
is that a challenge?
No. Just paraphrasing the comment you made about how much you "disliked" the finish -- and the work to do it -- on ours.

I know that at some point you'll likey swoop them away noe that we have confirmed they work.

dave
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Old 20th April 2010, 06:40 PM   #1172
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Originally Posted by gps View Post
BVR / vintage Philips AD7061/M4 ( phase plug + magnet ring compensation )
Hello GPS!
these look real nice!!
I have some phillips and Isophone all-range gathering dust.
can you post the plans?
I sure would like to try them in your enclosure.

Thanks
Gerrit
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Old 20th April 2010, 10:01 PM   #1173
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Originally Posted by zayne742 View Post
Those are very nice, and I see you have caught a picture of the elusive Dust Cap Monster!
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Old 20th April 2010, 10:15 PM   #1174
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just madness, no particular thought process . that's part of the reason i ran the wires directly out - i want to be able to try both parallel and series. i have a Tripath based 30W Amp4 upstairs and an %80 completed F5. i'll end up with 16ohm connection with these amps and the SE tube amp i have on deck.

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Originally Posted by thetubeguy1954 View Post
Hello Fishski13!

Please forgive the ignorance of a technically inept amongst us, but why would you have chosen to wire them in parallel for a measured impedance of 3.5 ohms over wiring in series for a higher impedance? Just curious what the thought process behind that decision was...


Tom Scata (thetubeguy1954)

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Old 20th April 2010, 11:43 PM   #1175
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Quote:
Originally Posted by fishski13 View Post
just madness, no particular thought process . that's part of the reason i ran the wires directly out - i want to be able to try both parallel and series. i have a Tripath based 30W Amp4 upstairs and an %80 completed F5. i'll end up with 16ohm connection with these amps and the SE tube amp i have on deck.
Hello Fishski13!

Thanks for the clarification...


Tom Scata (thetubeguy1954)

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Old 21st April 2010, 12:16 AM   #1176
DonB is offline DonB  United States
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Yes, very nice work indeed. I've seen your video's on YouTube and you mention that the horns were sourced from Rainer Flock. When I use the link on your page (http://www.flo-horns.de) is shows the URL is no longer working or valid. Can you give me an alternative way to contact Rainer? I thank you in advance for your time


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Originally Posted by sarrisk View Post
Upgrading my BLH using the BMS 4524 driver

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Old 21st April 2010, 03:30 PM   #1177
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Originally Posted by planet10 View Post
Those are lovely... i just pulled a set of those drivers, i'd be interested in more detail.

dave
Hi Dave,

I think project like Iris 1v1 is better for Philips AD7061/M4... but small room + high cabinets + Wife Factor = isn’t a good idea . My BVR with one mouth horn is compromise.
Different vintage Philips AD7061/M4 have different T/S parameters , Fs from 68Hz to 87Hz, Qts from 0,65 to 0,9. My drivers used to have Fs=74Hz/Qts=0,68 . After the modification (new spider) Fs came down to 68Hz , with magnet ring Qts came down to 0,48. With these parameters I calculated horn lenght=90cm, horn throat=60cm² , horn mouth=700cm², CC=9L.

I`m not sure if philips drivers will sound good without modification in my project.

Philips with magnet ring and my prevous 2 way BVR project (first steps )in process of development
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File Type: jpg 2 way BVR.jpg (88.2 KB, 2222 views)
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Old 21st April 2010, 05:42 PM   #1178
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Thanx. How did you replace the spider?

dave
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Old 21st April 2010, 07:13 PM   #1179
chrisb is offline chrisb  Canada
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Originally Posted by planet10 View Post
No. Just paraphrasing the comment you made about how much you "disliked" the finish -- and the work to do it -- on ours.

I know that at some point you'll likey swoop them away noe that we have confirmed they work.

dave

probably faster to build and veneer another pair than fix that hammer-coat paint finish

I bet they'd burn some pretty colors
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Old 21st April 2010, 09:13 PM   #1180
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Sounds like they are staying hammerkoat grey then ... that's OK, i've just started some complementary colour drivers for them (freeing up the drivers in them for the woofer#6 blade-like boxes (you are gonna hate me when you see the sat drawing), and the MJK/Shearer OBs)

dave
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