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Old 12th January 2012, 12:59 PM   #11591
Zen Mod is offline Zen Mod  Serbia
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Iris?
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Old 12th January 2012, 01:21 PM   #11592
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Probably ZM, as I see the B5 - which is OB X-Over. Good call.
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Old 12th January 2012, 02:06 PM   #11593
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Quote:
Originally Posted by Tea-Bag View Post
Probably ZM, as I see the B5 - which is OB X-Over. Good call.
Sorry, Tea-Bag, it's a B1, not B5.

Well spotted, Zen-Mod. They are Silver Iris 15". In that photo still in the boxes they came in. I have since mounted them in 24 x 36 (600 x 900) MDF baffles,07032011343.jpg
but they do not sound right to me. I hope to test some Fostex FE206En's in the same baffles in a few weeks time, but am not sure it is going to give the sound I want.

The above is setup in Australia where I currently am. I run a different system in Europe with an original Aleph 3 for mid/high on a set of old Magnepan MG3A's (all bought second hand). I have never been able to compare the F5 to the Aleph 3 as they are 20,000 km apart and I do not have a set of speaker cables that are long enough!

In Europe, I also have a set of Aleph 2 clone monoblocks a friend of mine built for me some years ago. Nice and of course more power, but the Aleph 3 is nicer. Could be parts too, as in the last 8 months or so I have been reading a lot on this site. Am considering upgrading the Aleph 2's (ZVP3310A for input and CSS, Silmic II 220uF caps and replacing the low-level wiring that I recently discovered was very cheap silver on copper on steel core coax).

I am considering replacing the Iris OB's by Magnepan MG1.7 (would like 3.7 or new 20.7 but hey, these things cost serious money! Too bad they dropped the biamp option on the .7's ). But for Magnepans the F5 is probably too small. Hence the need for a TURBO!

PS Yes, those are computer tapes under the feet of the OB's. I used them to angle the speakers to my listening position.

Last edited by albertNL; 12th January 2012 at 02:09 PM. Reason: Added PS
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Old 12th January 2012, 02:47 PM   #11594
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AlberNL,

What dimensions are the room? Is it square, rectanglar, ect?

Try moving them out about 3-4 feet from the back wall. They look like they are about 2.5 ft from the back wall now. Looks too close in my opinion.

Where are your sidewalls in respect to the center of the driver?
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Old 12th January 2012, 02:55 PM   #11595
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Quote:
Originally Posted by albertNL View Post
do not have a set of speaker cables that are long enough
Think i saw a Tardis flash by at Ebay.
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Old 12th January 2012, 02:59 PM   #11596
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Anyone build a pair of Manzanita open baffle speakers?

I'm interested in putting together a pair for my F5 amp.
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Old 12th January 2012, 03:10 PM   #11597
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whazzat ?

edit

found it

Fast, fun, Inexpensive OB project
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Last edited by Zen Mod; 12th January 2012 at 03:12 PM.
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Old 12th January 2012, 03:12 PM   #11598
labjr is offline labjr  United States
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Quote:
Originally Posted by Nelson Pass View Post

There are several options, the base being an F5 with a few parts altered
and an extra pair of outputs.

Where are we gonna get matched sets of Fairchild Outputs?
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Old 12th January 2012, 03:18 PM   #11599
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Got plenty of FQA12P20 and FQP19N20

The FQP are the TO220 kind but had them togheter for last4/5 months with no problem.
drop me PM if interested.
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Old 12th January 2012, 03:56 PM   #11600
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Looks like FQA19N20C has to be a higher current part then the FQA12P20 in the F5. Seems kind of scary to use a TO220 part considering how hot these parts run in the amp.

I do have some of both which I've had for while. Just not sure how many are needed to find matching pairs.

Last edited by labjr; 12th January 2012 at 04:16 PM.
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