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Old 8th August 2007, 03:35 PM   #1031
steenoe is offline steenoe  Denmark
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Quote:
Originally posted by mpmarino
Bfish:


D'oh! I didn't think the babelfish was balanced

Hi Russ!

I'm probably in total cranial shutdown but - what is BPA?

oops, found it. It's a chip, right? You know good and well I'm not ready for those yet . I certainly know who to call when I am though


BPA is Bridged-Parallel-Amp.

Printing Russ's schematic right now Sure looks like a nice gainstage.

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Old 8th August 2007, 04:00 PM   #1032
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Quote:
Originally posted by steenoe
Taking it one step further would be to use the one I posted as woofer amp's, together with a pair of the stock bridged F4's for the fullranger (High/Mid) when the active crossover hits the download area at F-W. Spells powerfull, fully balanced setup
Appealing thought, but maybe 12 channels worth of F4's for a stereoamp is going a bit overboard? (No it aint )

This is the confirmation I was waiting for....Yes, you are NUTZ!
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Old 8th August 2007, 04:09 PM   #1033
steenoe is offline steenoe  Denmark
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Quote:
Originally posted by apassgear


This is the confirmation I was waiting for....Yes, you are NUTZ!
I wont argue about that
Now that I saw it in print, maybe 12 channels is a bit on the nutty side I am sure it would make a great amp, though....

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Old 10th August 2007, 06:15 AM   #1034
Blues is offline Blues  United States
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http://6moons.com/audioreviews/firstwatt6/f4.html
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Old 16th August 2007, 08:55 PM   #1035
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6moons has just posted the rest of the review...

http://6moons.com/audioreviews/firstwatt6/f4.html

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Old 16th August 2007, 11:14 PM   #1036
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Excellent review Nelson, thanks for prompting the link.

I'm still dragging my feet to build the F4 but have most of the components now.
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Old 17th August 2007, 05:18 AM   #1037
steenoe is offline steenoe  Denmark
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Nelson, congrats on the fine review Those of us that build and listened to the F4 knew all that We also knew about the preamps importance with this poweramp You better build 150 preamps to go with those F4's (And post the schematic here...he-he)

Steen
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Old 17th August 2007, 05:23 AM   #1038
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Default I want to mention

that the review is not yet complete. I'm sure he will add one or more pages talking about the various ways to implement the F4 and how it performs in these configurations.

It is of course in this early stage an extremely positive review and I look forward to building mine after I acquire a few heatsinks and the rest of the BOM.

C
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Old 17th August 2007, 05:23 AM   #1039
Blues is offline Blues  United States
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Grrrrreat!

Looks like more to come as that was just the reviewer's first impressions...
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Old 17th August 2007, 08:56 AM   #1040
spencer is offline spencer  Hong Kong
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I am yet to build one more set to try it in balance (100W!) mode to see the difference. Thank you Mr. Pass to share this great design with all of us.
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